<?xml version="1.0"?>
<!-- $id$ -->

<field_definition level="1" prec="4" operation="average" enabled=".TRUE." default_value="1.e20" > <!-- time step automaticaly defined -->

  <!--
      =====================================================================================================
      =                                   Configurable diagnostics                                        =
      =====================================================================================================
  -->

  <field_group id="diamlr_fields">

    <!--
        =====================================================================================================
        Configuration of multiple-linear-regression analysis (diamlr)
        =====================================================================================================

This field group configures diamlr for tidal harmonic analysis of field
ssh: in addition to a regressor for fitting the mean value (diamlr_r101),
it includes the regressors for the analysis of the tidal constituents
that are available in the tidal-forcing implementation (see
./src/OCE/SBC/tide.h90).

    -->

    <!-- Time -->
    <field id="diamlr_time" grid_ref="diamlr_grid_T_2D" prec="8" />

    <!-- Regressors for tidal harmonic analysis -->
    <field id="diamlr_r001"  field_ref="diamlr_time" expr="sin( __TDE_M2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:M2"   />
    <field id="diamlr_r002"  field_ref="diamlr_time" expr="cos( __TDE_M2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:M2"   />
    <field id="diamlr_r003"  field_ref="diamlr_time" expr="sin( __TDE_N2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:N2"   />
    <field id="diamlr_r004"  field_ref="diamlr_time" expr="cos( __TDE_N2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:N2"   />
    <field id="diamlr_r005"  field_ref="diamlr_time" expr="sin( __TDE_2N2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:2N2"  />
    <field id="diamlr_r006"  field_ref="diamlr_time" expr="cos( __TDE_2N2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:2N2"  />
    <field id="diamlr_r007"  field_ref="diamlr_time" expr="sin( __TDE_S2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:S2"   />
    <field id="diamlr_r008"  field_ref="diamlr_time" expr="cos( __TDE_S2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:S2"   />
    <field id="diamlr_r009"  field_ref="diamlr_time" expr="sin( __TDE_K2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:K2"   />
    <field id="diamlr_r010"  field_ref="diamlr_time" expr="cos( __TDE_K2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:K2"   />
    <field id="diamlr_r011"  field_ref="diamlr_time" expr="sin( __TDE_K1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:K1"   />
    <field id="diamlr_r012"  field_ref="diamlr_time" expr="cos( __TDE_K1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:K1"   />
    <field id="diamlr_r013"  field_ref="diamlr_time" expr="sin( __TDE_O1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:O1"   />
    <field id="diamlr_r014"  field_ref="diamlr_time" expr="cos( __TDE_O1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:O1"   />
    <field id="diamlr_r015"  field_ref="diamlr_time" expr="sin( __TDE_Q1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:Q1"   />
    <field id="diamlr_r016"  field_ref="diamlr_time" expr="cos( __TDE_Q1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:Q1"   />
    <field id="diamlr_r017"  field_ref="diamlr_time" expr="sin( __TDE_P1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:P1"   />
    <field id="diamlr_r018"  field_ref="diamlr_time" expr="cos( __TDE_P1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:P1"   />
    <field id="diamlr_r019"  field_ref="diamlr_time" expr="sin( __TDE_M4_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:M4"   />
    <field id="diamlr_r020"  field_ref="diamlr_time" expr="cos( __TDE_M4_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:M4"   />
    <field id="diamlr_r021"  field_ref="diamlr_time" expr="sin( __TDE_Mf_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:Mf"   />
    <field id="diamlr_r022"  field_ref="diamlr_time" expr="cos( __TDE_Mf_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:Mf"   />
    <field id="diamlr_r023"  field_ref="diamlr_time" expr="sin( __TDE_Mm_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:Mm"   />
    <field id="diamlr_r024"  field_ref="diamlr_time" expr="cos( __TDE_Mm_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:Mm"   />
    <field id="diamlr_r025"  field_ref="diamlr_time" expr="sin( __TDE_Msqm_omega__ * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:Msqm" />
    <field id="diamlr_r026"  field_ref="diamlr_time" expr="cos( __TDE_Msqm_omega__ * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:Msqm" />
    <field id="diamlr_r027"  field_ref="diamlr_time" expr="sin( __TDE_Mtm_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:Mtm"  />
    <field id="diamlr_r028"  field_ref="diamlr_time" expr="cos( __TDE_Mtm_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:Mtm"  />
    <field id="diamlr_r029"  field_ref="diamlr_time" expr="sin( __TDE_S1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:S1"   />
    <field id="diamlr_r030"  field_ref="diamlr_time" expr="cos( __TDE_S1_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:S1"   />
    <field id="diamlr_r031"  field_ref="diamlr_time" expr="sin( __TDE_MU2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:MU2"  />
    <field id="diamlr_r032"  field_ref="diamlr_time" expr="cos( __TDE_MU2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:MU2"  />
    <field id="diamlr_r033"  field_ref="diamlr_time" expr="sin( __TDE_NU2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:NU2"  />
    <field id="diamlr_r034"  field_ref="diamlr_time" expr="cos( __TDE_NU2_omega__  * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:NU2"  />
    <field id="diamlr_r035"  field_ref="diamlr_time" expr="sin( __TDE_L2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:L2"   />
    <field id="diamlr_r036"  field_ref="diamlr_time" expr="cos( __TDE_L2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:L2"   />
    <field id="diamlr_r037"  field_ref="diamlr_time" expr="sin( __TDE_T2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:sin:T2"   />
    <field id="diamlr_r038"  field_ref="diamlr_time" expr="cos( __TDE_T2_omega__   * diamlr_time )" enabled=".TRUE."  comment="harmonic:cos:T2"   />
    <field id="diamlr_r101"  field_ref="diamlr_time" expr="diamlr_time^0.0"                         enabled=".TRUE."  comment="mean"              />

    <!-- Fields selected for regression analysis -->
    <field id="diamlr_f001" field_ref="ssh" enabled=".TRUE." />

  </field_group>

  <!--
      ============================================================================================================
      =                                  definition of all existing variables                                    =
      =                                            DO NOT CHANGE                                                 =
      ============================================================================================================
  -->

  <field_group id="diadetide_fields">

    <!--
        =====================================================================================================
        Weight fields for the computation of daily detided model diagnostics (diadetide)
        =====================================================================================================

    -->

    <field id="diadetide_weight" grid_ref="diadetide_grid_T_2D" enabled=".TRUE." />
    <field id="diadetide_weight_grid_T_2D" field_ref="diadetide_weight" grid_ref="diadetide_grid_T_2D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_U_2D" field_ref="diadetide_weight" grid_ref="diadetide_grid_U_2D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_V_2D" field_ref="diadetide_weight" grid_ref="diadetide_grid_V_2D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_T_3D" field_ref="diadetide_weight" grid_ref="diadetide_grid_2D_to_grid_T_3D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_U_3D" field_ref="diadetide_weight" grid_ref="diadetide_grid_2D_to_grid_U_3D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_V_3D" field_ref="diadetide_weight" grid_ref="diadetide_grid_2D_to_grid_V_3D" enabled=".TRUE." > this </field>
    <field id="diadetide_weight_grid_W_3D" field_ref="diadetide_weight" grid_ref="diadetide_grid_2D_to_grid_W_3D" enabled=".TRUE." > this </field>

  </field_group>

  <!--
      ============================================================================================================
      Physical ocean model variables
      ============================================================================================================
  -->

  <!-- T grid -->

  <field_group id="grid_T" grid_ref="grid_T_2D" >
    <field id="e3t"          long_name="T-cell thickness"                    standard_name="cell_thickness"        unit="m"   grid_ref="grid_T_3D" />
    <field id="e3ts"         long_name="T-cell thickness"   field_ref="e3t"  standard_name="cell_thickness"        unit="m"   grid_ref="grid_T_SFC"/>
    <field id="e3t_0"        long_name="Initial T-cell thickness"            standard_name="ref_cell_thickness"    unit="m"   grid_ref="grid_T_3D" />
    <field id="e3tb"         long_name="bottom T-cell thickness"             standard_name="bottom_cell_thickness" unit="m"   grid_ref="grid_T_2D"/>
    <field id="e3t_300"      field_ref="e3t"                grid_ref="grid_T_zoom_300"       detect_missing_value="true" />
    <field id="e3t_vsum300"  field_ref="e3t_300"            grid_ref="grid_T_vsum"   detect_missing_value="true" />
    <field id="masscello"    long_name="Sea Water Mass per unit area"   standard_name="sea_water_mass_per_unit_area"   unit="kg/m2"   grid_ref="grid_T_3D"/>
    <field id="volcello"     long_name="Ocean Volume"                   standard_name="ocean_volume"   unit="m3"       grid_ref="grid_T_3D"/>
    <field id="toce"         long_name="temperature"                         standard_name="sea_water_potential_temperature"   unit="degC"     grid_ref="grid_T_3D"/>
    <field id="toce_e3t"     long_name="temperature (thickness weighted)"                                                      unit="degC"     grid_ref="grid_T_3D" > toce * e3t </field >
    <field id="soce"         long_name="salinity"                            standard_name="sea_water_practical_salinity"      unit="1e-3"     grid_ref="grid_T_3D"/>
    <field id="soce_e3t"     long_name="salinity    (thickness weighted)"                                                      unit="1e-3"     grid_ref="grid_T_3D" > soce * e3t </field >

    <field id="toce_e3t_300"      field_ref="toce_e3t"          unit="degree_C"     grid_ref="grid_T_zoom_300"      detect_missing_value="true" />
    <field id="toce_e3t_vsum300"  field_ref="toce_e3t_300"      unit="degress_C*m"  grid_ref="grid_T_vsum"  detect_missing_value="true" />
    <field id="toce_vmean300"     field_ref="toce_e3t_vsum300"  unit="degree_C"     grid_ref="grid_T_vsum"  detect_missing_value="true" > toce_e3t_vsum300/e3t_vsum300 </field>

    <!-- AGRIF sponge -->
    <field id="agrif_spt"         long_name=" AGRIF t-sponge coefficient"   unit=" " />

    <!-- additions to diawri.F90 -->
    <field id="sssgrad"     long_name="module of surface salinity gradient"              unit="1e-3/m"   grid_ref="grid_T_2D_inner"/>
    <field id="sssgrad2"    long_name="square of module of surface salinity gradient"    unit="1e-6/m2"  grid_ref="grid_T_2D_inner"/>
    <field id="ke"          long_name="kinetic energy"          standard_name="specific_kinetic_energy_of_sea_water"   unit="m2/s2"  grid_ref="grid_T_3D" />
    <field id="ke_int"      long_name="vertical integration of kinetic energy"   unit="m3/s2"  grid_ref="grid_T_2D_inner" />

    <!-- t-eddy viscosity coefficients (ldfdyn) -->
    <field id="ahmt_2d"      long_name=" surface t-eddy viscosity coefficient"   unit="m2/s or m4/s"                      />
    <field id="ahmt_3d"      long_name=" 3D      t-eddy viscosity coefficient"   unit="m2/s or m4/s"  grid_ref="grid_T_3D"/>

    <field id="sst"          long_name="Bulk sea surface temperature"                       standard_name="bulk_sea_surface_temperature"        unit="degC"     />
    <field id="t_skin"       long_name="Skin temperature aka SSST"                          standard_name="skin_temperature"                    unit="degC"     />
    <field id="sst2"         long_name="square of sea surface temperature"                  standard_name="square_of_sea_surface_temperature"   unit="degC2"     > sst * sst </field >
    <field id="sstmax"       long_name="max of sea surface temperature"   field_ref="sst"   operation="maximum"                                                 />
    <field id="sstmin"       long_name="min of sea surface temperature"   field_ref="sst"   operation="minimum"                                                 />
    <field id="sstgrad"      long_name="module of sst gradient"                                                                                 unit="degC/m"   grid_ref="grid_T_2D_inner" />
    <field id="sstgrad2"     long_name="square of module of sst gradient"                                                                       unit="degC2/m2" grid_ref="grid_T_2D_inner" />
    <field id="sbt"          long_name="sea bottom temperature"                                                                                 unit="degC"     grid_ref="grid_T_2D_inner" />
    <field id="tosmint"      long_name="vertical integral of temperature times density"     standard_name="integral_wrt_depth_of_product_of_density_and_potential_temperature"  unit="(kg m2) degree_C" grid_ref="grid_T_2D_inner" />
    <field id="sst_wl"       long_name="Delta SST of warm layer"                                                                                unit="degC"     />
    <field id="sst_cs"       long_name="Delta SST of cool skin"                                                                                 unit="degC"     />
    <field id="temp_3m"      long_name="temperature at 3m"                                                                                      unit="degC"     />

    <field id="sss"          long_name="sea surface salinity"                               standard_name="sea_surface_salinity"                unit="1e-3"     />
    <field id="sss2"         long_name="square of sea surface salinity"                                                                         unit="1e-6"      > sss * sss </field >
    <field id="sssmax"       long_name="max of sea surface salinity"      field_ref="sss"   operation="maximum"                                                 />
    <field id="sssmin"       long_name="min of sea surface salinity"      field_ref="sss"   operation="minimum"                                                 />
    <field id="sbs"          long_name="sea bottom salinity"                                                                                    unit="0.001"   grid_ref="grid_T_2D_inner" />
    <field id="somint"       long_name="vertical integral of salinity times density"        standard_name="integral_wrt_depth_of_product_of_density_and_salinity"  unit="(kg m2) x (1e-3)" grid_ref="grid_T_2D_inner" />

    <field id="taubot"       long_name="bottom stress module"   unit="N/m2"   grid_ref="grid_T_2D_inner" />

    <!-- Case EOS = TEOS-10 : output potential temperature -->
    <field id="toce_pot"     long_name="Sea Water Potential Temperature"              standard_name="sea_water_potential_temperature"   unit="degC"     grid_ref="grid_T_3D"/>
    <field id="sst_pot"      long_name="potential sea surface temperature"             standard_name="sea_surface_temperature"             unit="degC"     />
    <field id="tosmint_pot"  long_name="vertical integral of potential temperature times density"   standard_name="integral_wrt_depth_of_product_of_density_and_potential_temperature"  unit="(kg m2) degree_C" />

    <field id="ht"           long_name="water column height at T point"                     standard_name="water_column_height_T"                      unit="m" />
    <field id="ssh"          long_name="sea surface height"                                 standard_name="sea_surface_height_above_geoid"             unit="m" />
    <field id="ssh2"         long_name="square of sea surface height"                       standard_name="square_of_sea_surface_height_above_geoid"   unit="m2" > ssh * ssh </field >
    <field id="wetdep"       long_name="wet depth"                                          standard_name="wet_depth"                                  unit="m" />
    <field id="sshmax"       long_name="max of sea surface height"        field_ref="ssh"   operation="maximum"                                                 />

    <field id="mldkz5"       long_name="Turbocline depth (Kz = 5e-4)"                       standard_name="ocean_mixed_layer_thickness_defined_by_vertical_tracer_diffusivity"                unit="m"          />
    <field id="mldr10_1"     long_name="Mixed Layer Depth (dsigma = 0.01 wrt 10m)"          standard_name="ocean_mixed_layer_thickness_defined_by_sigma_theta"                                unit="m"          />
    <field id="mldr10_1max"  long_name="Max of Mixed Layer Depth (dsigma = 0.01 wrt 10m)"   field_ref="mldr10_1"   operation="maximum"                                                                          />
    <field id="mldr10_1min"  long_name="Min of Mixed Layer Depth (dsigma = 0.01 wrt 10m)"   field_ref="mldr10_1"   operation="minimum"                                                                          />
    <field id="heatc"        long_name="Heat content vertically integrated"                 standard_name="integral_of_sea_water_potential_temperature_wrt_depth_expressed_as_heat_content"   unit="J/m2"      grid_ref="grid_T_2D_inner" />
    <field id="saltc"        long_name="Salt content vertically integrated"                                                                                                                   unit="PSU*kg/m2"    grid_ref="grid_T_2D_inner" />
    <field id="salt2c"       long_name="square of Salt content vertically integrated"                                                                                                         unit="PSU2*kg/m2"   grid_ref="grid_T_2D_inner" />

    <!-- EOS -->
    <field id="alpha"        long_name="thermal expansion"                                                         unit="degC-1" grid_ref="grid_T_3D" />
    <field id="beta"         long_name="haline contraction"                                                        unit="1e3"    grid_ref="grid_T_3D" />
    <field id="rhop"         long_name="potential density (sigma0)"        standard_name="sea_water_sigma_theta"   unit="kg/m3"  grid_ref="grid_T_3D" />

    <!-- Energy - horizontal divergence -->
    <field id="sKE"          long_name="surface kinetic energy"  standard_name="specific_kinetic_energy_of_sea_water"   unit="m2/s2"  grid_ref="grid_T_2D_inner" />
    <field id="hdiv"         long_name="horizontal divergence"                                                          unit="s-1"    grid_ref="grid_T_3D" />

    <!-- variables available with MLE -->
    <field id="Lf_NHpf"      long_name="MLE: Lf = N H / f"   unit="m" />

    <!-- next variables available with ln_zad_Aimp=.true. -->
    <field id="Courant"      long_name="Courant number"                                                                 unit="#"   grid_ref="grid_T_3D" />
    <field id="wimp"         long_name="Implicit vertical velocity"                                                     unit="m/s" grid_ref="grid_T_3D" />
    <field id="wexp"         long_name="Explicit vertical velocity"                                                     unit="m/s" grid_ref="grid_T_3D" />
    <field id="wi_cff"       long_name="Fraction of implicit vertical velocity"                                         unit="#"   grid_ref="grid_T_3D" />

    <!-- next variables available with key_diahth -->
    <field id="mlddzt"       long_name="Thermocline Depth (depth of max dT/dz)"         standard_name="depth_at_maximum_upward_derivative_of_sea_water_potential_temperature"             unit="m"                         />
    <field id="mldr10_3"     long_name="Mixed Layer Depth (dsigma = 0.03 wrt 10m)"      standard_name="ocean_mixed_layer_thickness_defined_by_sigma_theta"                                unit="m"                         />
    <field id="mldr0_1"      long_name="Mixed Layer Depth (dsigma = 0.01 wrt sfc)"      standard_name="ocean_mixed_layer_thickness_defined_by_sigma_theta"                                unit="m"                         />
    <field id="mldr0_3"      long_name="Mixed Layer Depth (dsigma = 0.03 wrt sfc)"      standard_name="ocean_mixed_layer_thickness_defined_by_sigma_theta"                                unit="m"                         />
    <field id="mld_dt02"     long_name="Mixed Layer Depth (|dT| = 0.2 wrt 10m)"         standard_name="ocean_mixed_layer_thickness_defined_by_temperature"                                unit="m"                         />
    <field id="topthdep"     long_name="Top of Thermocline Depth (dT = -0.2 wrt 10m)"   standard_name="ocean_mixed_layer_thickness_defined_by_temperature"                                unit="m"                         />
    <field id="pycndep"      long_name="Pycnocline Depth (dsigma[dT=-0.2] wrt 10m)"     standard_name="ocean_mixed_layer_thickness_defined_by_sigma_theta"                                unit="m"                         />
    <field id="BLT"          long_name="Barrier Layer Thickness"                                                                                                                          unit="m"   > topthdep - pycndep </field>
    <field id="tinv"         long_name="Max of vertical invertion of temperature"                                                                                                         unit="degC"                      />
    <field id="depti"        long_name="Depth of max. vert. inv. of temperature"                                                                                                          unit="m"                         />
    <field id="20d"          long_name="Depth of 20C isotherm"                          standard_name="depth_of_isosurface_of_sea_water_potential_temperature"                            unit="m"   axis_ref="iax_20C" />
    <field id="26d"          long_name="Depth of 26C isotherm"                          standard_name="depth_of_isosurface_of_sea_water_potential_temperature"                            unit="m"   axis_ref="iax_26C"   />
    <field id="28d"          long_name="Depth of 28C isotherm"                          standard_name="depth_of_isosurface_of_sea_water_potential_temperature"                            unit="m"   axis_ref="iax_28C" />
    <field id="hc300"        long_name="Heat content 0-300m"                            standard_name="integral_of_sea_water_potential_temperature_wrt_depth_expressed_as_heat_content"   unit="J/m2"                      />
    <field id="hc700"        long_name="Heat content 0-700m"                            standard_name="integral_of_sea_water_potential_temperature_wrt_depth_expressed_as_heat_content"   unit="J/m2"                      />
    <field id="hc2000"       long_name="Heat content 0-2000m"                           standard_name="integral_of_sea_water_potential_temperature_wrt_depth_expressed_as_heat_content"   unit="J/m2"                      />

    <!-- variables available with diaar5 -->
    <field id="botpres"      long_name="Sea Water Pressure at Sea Floor"          standard_name="sea_water_pressure_at_sea_floor"                    unit="dbar" />
    <field id="sshdyn"       long_name="dynamic sea surface height"               standard_name="dynamic_sea_surface_height_above_geoid"             unit="m"    />
    <field id="sshdyn2"      long_name="square of dynamic sea surface height"     standard_name="dynamic_sea_surface_height_above_geoid_squared"     unit="m2"    > sshdyn * sshdyn </field>
    <field id="tnpeo"      long_name="Tendency of ocean potential energy content"                                                                    unit="W/m2" />

    <!-- variables available ln_linssh=.FALSE. -->
    <field id="tpt_dep"      long_name="T-point depth"                  standard_name="depth_below_geoid"   unit="m"   grid_ref="grid_T_3D" />
    <field id="e3tdef"       long_name="T-cell thickness deformation"                                       unit="%"   grid_ref="grid_T_3D" />

    <!-- variables available with ln_diacfl=.true. -->
    <field id="cfl_cu"       long_name="u-courant number"   unit="#" />
    <field id="cfl_cv"       long_name="v-courant number"   unit="#" />
    <field id="cfl_cw"       long_name="w-courant number"   unit="#" />

    <!-- variables available with ln_zdfmfc=.true. -->
    <field id="mf_Tp"       long_name="plume_temperature"      standard_name="plume_temperature"     unit="degC"   grid_ref="grid_T_3D" />
    <field id="mf_Sp"       long_name="plume_salinity"         standard_name="plume_salinity"        unit="1e-3"   grid_ref="grid_T_3D" />
    <field id="mf_mf"       long_name="mass flux"              standard_name="mf_mass_flux"          unit="m"      grid_ref="grid_T_3D" />

    <!-- fluxes from damping -->
    <field id="sflx_dmp_cea"  long_name="salt flux due to damping"  standard_name="salt_flux_due_to_damping"          unit="g/m2/s"   />
    <field id="hflx_dmp_cea"  long_name="heat flux due to damping"  standard_name="heat_flux_due_to_damping"          unit="W/m2"     />

    <!-- * variable related to ice shelf forcing * -->

    <!-- * fwf * -->
    <field id="fwfisf_cav"      long_name="Ice shelf fresh water flux ( from isf to oce )"                    unit="kg/m2/s"  />
    <field id="fwfisf_par"      long_name="Ice shelf fresh water flux ( from isf to oce )"                    unit="kg/m2/s"  />
    <field id="fwfisf3d_cav"    long_name="3d Ice shelf fresh water flux ( from isf to oce )"                 unit="kg/m2/s"  grid_ref="grid_T_3D" />
    <field id="fwfisf3d_par"    long_name="3d Ice shelf fresh water flux ( from isf to oce )"                 unit="kg/m2/s"  grid_ref="grid_T_3D" />

    <!-- * heat fluxes * -->
    <field id="qoceisf_cav"     long_name="Ice shelf ocean  heat flux ( from isf to oce )"                    unit="W/m2"     />
    <field id="qoceisf_par"     long_name="Ice shelf ocean  heat flux ( from isf to oce )"                    unit="W/m2"     />
    <field id="qlatisf_cav"     long_name="Ice shelf latent heat flux ( from isf to oce )"                    unit="W/m2"     />
    <field id="qlatisf_par"     long_name="Ice shelf latent heat flux ( from isf to oce )"                    unit="W/m2"     />
    <field id="qhcisf_cav"      long_name="Ice shelf heat content flux of injected water ( from isf to oce )" unit="W/m2"     />
    <field id="qhcisf_par"      long_name="Ice shelf heat content flux of injected water ( from isf to oce )" unit="W/m2"     />
    <field id="qoceisf3d_cav"   long_name="Ice shelf ocean  heat flux ( from isf to oce )"                    unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qoceisf3d_par"   long_name="Ice shelf ocean  heat flux ( from isf to oce )"                    unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qlatisf3d_cav"   long_name="Ice shelf latent heat flux ( from isf to oce )"                    unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qlatisf3d_par"   long_name="Ice shelf latent heat flux ( from isf to oce )"                    unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qhcisf3d_cav"    long_name="Ice shelf heat content flux of injected water ( from isf to oce )" unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qhcisf3d_par"    long_name="Ice shelf heat content flux of injected water ( from isf to oce )" unit="W/m2"     grid_ref="grid_T_3D" />
    <field id="qconisf"         long_name="Conductive heat flux through the ice shelf ( from isf to oce )"    unit="W/m2"     />

    <!-- top boundary layer properties -->
    <field id="isftfrz_cav"     long_name="freezing point temperature at ocean/isf interface"                unit="degC"     />
    <field id="isftfrz_par"     long_name="freezing point temperature in the parametrization boundary layer" unit="degC"     />
    <field id="isfthermald_cav" long_name="thermal driving of ice shelf melting"          unit="degC"     />
    <field id="isfthermald_par" long_name="thermal driving of ice shelf melting"          unit="degC"     />
    <field id="isfgammat"       long_name="Ice shelf heat-transfert velocity"             unit="m/s"      />
    <field id="isfgammas"       long_name="Ice shelf salt-transfert velocity"             unit="m/s"      />
    <field id="ttbl_cav"        long_name="temperature in Losch tbl"                      unit="degC"     />
    <field id="ttbl_par"        long_name="temperature in the parametrisation boundary layer" unit="degC" />
    <field id="stbl"            long_name="salinity in the Losh tbl"                      unit="1e-3"     />
    <field id="utbl"            long_name="zonal current in the Losh tbl at T point"      unit="m/s"      />
    <field id="vtbl"            long_name="merid current in the Losh tbl at T point"      unit="m/s"      />
    <field id="isfustar"        long_name="ustar at T point used in ice shelf melting"    unit="m/s"      />

  </field_group> <!-- grid_T -->

  <!-- Tides -->

  <field_group id="Tides_T" grid_ref="grid_T_2D" operation="once" >
    <!-- Tidal potential -->
    <field id="tide_pot"      long_name="Total tidal potential" unit="m" />
    <field id="tide_pot_M2"   long_name="M2 tidal potential"    unit="m" />
    <field id="tide_pot_N2"   long_name="N2 tidal potential"    unit="m" />
    <field id="tide_pot_2N2"  long_name="2N2 tidal potential"   unit="m" />
    <field id="tide_pot_S2"   long_name="S2 tidal potential"    unit="m" />
    <field id="tide_pot_K2"   long_name="K2 tidal potential"    unit="m" />
    <field id="tide_pot_K1"   long_name="K1 tidal potential"    unit="m" />
    <field id="tide_pot_O1"   long_name="O1 tidal potential"    unit="m" />
    <field id="tide_pot_Q1"   long_name="Q1 tidal potential"    unit="m" />
    <field id="tide_pot_P1"   long_name="P1 tidal potential"    unit="m" />
    <field id="tide_pot_M4"   long_name="M4 tidal potential"    unit="m" />
    <field id="tide_pot_Mf"   long_name="Mf tidal potential"    unit="m" />
    <field id="tide_pot_Mm"   long_name="Mm tidal potential"    unit="m" />
    <field id="tide_pot_Msqm" long_name="Msqm tidal potential"  unit="m" />
    <field id="tide_pot_Mtm"  long_name="Mtm tidal potential"   unit="m" />
    <field id="tide_pot_S1"   long_name="S1 tidal potential"    unit="m" />
    <field id="tide_pot_MU2"  long_name="MU2 tidal potential"   unit="m" />
    <field id="tide_pot_NU2"  long_name="NU2 tidal potential"   unit="m" />
    <field id="tide_pot_L2"   long_name="L2 tidal potential"    unit="m" />
    <field id="tide_pot_T2"   long_name="T2 tidal potential"    unit="m" />
  </field_group>

  <!-- OSMOSIS variables (available with ln_zdfosm=.true.) -->

  <field_group id="OSMOSIS_T" grid_ref="grid_T_2D">
    <field id="hml"                 long_name="mixed layr depth"                         unit="m"       />
    <field id="hbl"                 long_name="boundary layer depth"                     unit="m"       />
    <field id="dh"                  long_name="Pycnocline thickness"                     unit=" m"      />
    <field id="ibld"                long_name="index of boundary layer depth"            unit="#"       />
    <field id="imld"                long_name="index of mixed layer depth"               unit="#"       />
    <field id="jp_ext"              long_name="flag =1 if pycnocline well resolved"      unit="#"       />
    <field id="j_ddh"               long_name="index of mixed layer depth"               unit="#"       />
    <field id="zshear"              long_name="shear production of TKE "                 unit="m^3/s^3" />
    <field id="zhbl"                long_name="boundary layer depth -grid"               unit="m"       />
    <field id="zhml"                long_name="mixed layer depth - grid"                 unit="m"       />
    <field id="zdh"                 long_name="Pycnocline  depth - grid"                 unit=" m"      />
    <field id="zustke"              long_name="magnitude of stokes drift  at T-points"   unit="m/s"     />
    <field id="us_x"                long_name="i component of active Stokes drift"       unit="m/s"     />
    <field id="us_y"                long_name="j component of active Stokes drift"       unit="m/s"     />
    <field id="dstokes"             long_name="stokes drift  depth scale"                unit="m"       />
    <field id="zwth0"               long_name="surface non-local temperature flux"       unit="deg m/s" />
    <field id="zws0"                long_name="surface non-local salinity flux"          unit="psu m/s" />
    <field id="zwb0"                long_name="surface non-local buoyancy flux"          unit="m^2/s^3" />
    <field id="zwstrc"              long_name="convective velocity scale"                unit="m/s"     />
    <field id="zustar"              long_name="friction velocity"                        unit="m/s"     />
    <field id="zwstrl"              long_name="langmuir velocity scale"                  unit="m/s"     />
    <field id="zvstr"               long_name="mixed velocity scale"                     unit="m/s"     />
    <field id="zla"                 long_name="langmuir number"                          unit="#"       />
    <field id="wmp"                 long_name="wave mean period"                         unit="s"       />
    <field id="hsw"                 long_name="significant wave height"                  unit="m"       />
    <field id="wmp_NP"              long_name="wave mean period from NP spectrum"        unit="s"       />
    <field id="hsw_NP"              long_name="significant wave height from NP spectrum" unit="m"       />
    <field id="wndm"                long_name="U_10"                                     unit="m/s"     />
    <field id="wind_wave_abs_power" long_name="\rho |U_s| x u*^2"                        unit="mW"      />
    <field id="wind_wave_power"     long_name="U_s \dot  tau"                            unit="mW"      />
    <field id="wind_power"          long_name="\rho  u*^3"                               unit="mW"      />

    <!-- interior BL OSMOSIS diagnostics -->
    <field id="zwbav"               long_name="av turb flux of buoyancy in ml"           unit="m^2/s^3" />
    <field id="zt_ml"               long_name="av T in ml"                               unit="deg"     />
    <field id="zhol"                long_name="Hoenekker number"                         unit="#"       />
    <field id="zws_ent"            long_name="entrainment turb flux of S"                unit="10^-3 m/s" />
    <field id="zwth_ent"            long_name="entrainment turb flux of T"               unit="deg m/s" />
    <field id="zwb_ent"            long_name="entrainment turb flux of buoyancy"         unit="m^2/s^-3" />

    <field id="zdt_bl"             long_name="temperature jump at base of BL"            unit="deg"      />
    <field id="zds_bl"             long_name="salinity jump at base of BL"               unit="10^-3"    />
    <field id="zdb_bl"             long_name="buoyancy jump at base of BL"               unit="m/s^2"    />
    <field id="zdu_bl"             long_name="u jump at base of BL"                      unit="m/s"      />
    <field id="zdv_bl"             long_name="v jump at base of BL"                      unit="m/s"      />
    <field id="zdt_ml"             long_name="temperature jump at base of ML"            unit="deg"      />
    <field id="zds_ml"             long_name="salinity jump at base of ML"               unit="10^-3"    />
    <field id="zdb_ml"             long_name="buoyancy jump at base of ML"               unit="m/s^2"    />
    <field id="pb_coup"            long_name="bottom coupling velocity"                  unit="m/s"      />
    <!-- extra OSMOSIS diagnostics for debugging -->
    <field id="zsc_uw_1_0"       long_name="zsc u-momentum flux on T after Stokes"                       unit="m^2/s^2" />
    <field id="zsc_uw_1_f"       long_name="zsc u-momentum flux on T after Coriolis"                       unit="m^2/s^2" />
    <field id="zsc_vw_1_f"       long_name="zsc v-momentum flux on T after Coriolis"                       unit="m^2/s^2" />
    <field id="zsc_uw_2_f"       long_name="2nd zsc u-momentum flux on T after Coriolis"                       unit="m^2/s^2" />
    <field id="zsc_vw_2_f"       long_name="2nd zsc v-momentum flux on T after Coriolis"                       unit="m^2/s^2" />

    <!-- FK_OSM OSMOSIS diagnostics (require also ln_osm_mle=.true.-->
    <field id="hmle"          long_name="OBL FK-layer thickness"                                     unit="m"        />
    <field id="mld_prof"              long_name="FK-layer depth index"                  unit="#" />
    <field id="zmld"          long_name="target FK-layer thickness"                                     unit="m"        />
    <field id="zwb_fk"          long_name="FK b-flux"                                     unit="m^2 s^-3"        />
    <field id="zwb_fk_b"          long_name="layer averaged FK b-flux"                 unit="m^2 s^-3"       />
    <field id="zdiff_mle"          long_name="max FK diffusivity in MLE"       unit=" 10^-4 m^2 s^-1"       />
    <field id="zvel_mle"          long_name="FK velocity scale in MLE"       unit=" m s^-1"       />
  </field_group>

  <field_group id="OSMOSIS_W" grid_ref="grid_W_3D" >
    <field id="zviscos"       long_name="BL viscosity"   unit="m^2/s" />
    <field id="ghamt"       long_name="non-local temperature flux"                       unit="deg m/s" />
    <field id="ghams"       long_name="non-local salinity flux"                          unit="psu m/s" />
    <field id="zdtdz_pyc"   long_name="Pycnocline temperature gradient"                  unit=" deg/m"  />
    <field id="zdsdz_pyc"   long_name="Pycnocline salinity gradient"                  unit=" 10^-3/m"  />
    <field id="zdbdz_pyc"   long_name="Pycnocline buoyancy gradient"                  unit=" s^-2"  />
    <field id="zdudz_pyc"   long_name="Pycnocline u gradient"                  unit=" s^-2"  />
    <field id="zdvdz_pyc"   long_name="Pycnocline v gradient"                  unit=" s^-2"  />

    <!-- extra OSMOSIS diagnostics for debugging -->
    <field id="ghamu_00"       long_name="initial non-local u-momentum flux"   unit="m^2/s^2" />
    <field id="ghamv_00"       long_name="initial non-local v-momentum flux"   unit="m^2/s^2" />
    <field id="ghamu_0"       long_name="after dstokes non-local u-momentum flux"   unit="m^2/s^2" />
    <field id="ghamu_f"       long_name="after Coriolis non-local u-momentum flux"   unit="m^2/s^2" />
    <field id="ghamv_f"       long_name="after Coriolis  non-local v-momentum flux"   unit="m^2/s^2" />
    <field id="ghamu_b"       long_name="after buoyancy added non-local u-momentum flux"   unit="m^2/s^2" />
    <field id="ghamv_b"       long_name="after buoyancy added  non-local v-momentum flux"  unit="m^2/s^2" />
    <field id="ghamu_1"       long_name="after entrainment non-local u-momentum flux"   unit="m^2/s^2" />
    <field id="ghamv_1"       long_name="after entrainment  non-local v-momentum flux"  unit="m^2/s^2" />
  </field_group>

  <field_group id="OSMOSIS_U" grid_ref="grid_U_2D" >
    <field id="ghamu"       long_name="non-local u-momentum flux"   grid_ref="grid_U_3D" unit="m^2/s^2" />
    <!-- FK_OSM OSMOSIS diagnostics (require also ln_osm_mle=.true.-->
    <field id="zdtdx"          long_name="FK  T x-gradient"                                     unit=" deg C m^-1"        />
    <field id="zdsdx"          long_name="FK  S x-gradient"                                     unit=" 10^-3 m^-1"        />
    <field id="dbdx_mle"          long_name="FK  B x-gradient"                                     unit=" s^-2"        />
  </field_group>

  <field_group id="OSMOSIS_V" grid_ref="grid_V_2D" >
    <field id="ghamv"       long_name="non-local v-momentum flux"   grid_ref="grid_V_3D" unit="m^2/s^2" />
    <!-- FK_OSM OSMOSIS diagnostics (require also ln_osm_mle=.true.-->
    <field id="zdtdy"          long_name="FK T y-gradient"                                     unit=" deg C m^-1"        />
    <field id="zdsdy"          long_name="FK S y-gradient"                                     unit=" 10^-3 m^-1"        />
    <field id="dbdy_mle"          long_name="FK B y-gradient"                                     unit=" s^-2"        />
  </field_group>

  <!-- SBC -->
  <field_group id="SBC" > <!-- time step automaticaly defined based on nn_fsbc -->

    <field_group id="SBC_2D" grid_ref="grid_T_2D" >

      <field id="empmr"        long_name="Net Upward Water Flux"                standard_name="water_flux_out_of_sea_ice_and_sea_water"                              unit="kg/m2/s"   />
      <field id="empbmr"       long_name="Net Upward Water Flux at pre. tstep"  standard_name="water_flux_out_of_sea_ice_and_sea_water"                              unit="kg/m2/s"   />
      <field id="emp_oce"      long_name="Evap minus Precip over ocean"         standard_name="evap_minus_precip_over_sea_water"                                     unit="kg/m2/s"   />
      <field id="emp_ice"      long_name="Evap minus Precip over ice"           standard_name="evap_minus_precip_over_sea_ice"                                       unit="kg/m2/s"   />
      <field id="saltflx"      long_name="Downward salt flux"                                                                                                        unit="g/m2/s"    />
      <field id="fmmflx"       long_name="Water flux due to freezing/melting"                                                                                        unit="kg/m2/s"   />
      <field id="snowpre"      long_name="Snow precipitation"                   standard_name="snowfall_flux"                                                        unit="kg/m2/s"   />
      <field id="runoffs"      long_name="River Runoffs"                        standard_name="water_flux_into_sea_water_from_rivers"                                unit="kg/m2/s"   />
      <field id="precip"       long_name="Total precipitation"                  standard_name="precipitation_flux"                                                   unit="kg/m2/s"   />
      <field id="wclosea"      long_name="closed sea empmr correction"          standard_name="closea_empmr"                                                         unit="kg/m2/s"   />

      <field id="qt"           long_name="Net Downward Heat Flux"                standard_name="surface_downward_heat_flux_in_sea_water"                              unit="W/m2"                           />
      <field id="qns"          long_name="non solar Downward Heat Flux"                                                                                               unit="W/m2"                           />
      <field id="qsr"          long_name="Shortwave Radiation"                   standard_name="net_downward_shortwave_flux_at_sea_water_surface"                     unit="W/m2"                           />
      <field id="qsr3d"        long_name="Shortwave Radiation 3D distribution"   standard_name="downwelling_shortwave_flux_in_sea_water"                              unit="W/m2"      grid_ref="grid_T_3D_inner" />
      <field id="qrp"          long_name="Surface Heat Flux: Damping"            standard_name="heat_flux_into_sea_water_due_to_newtonian_relaxation"                 unit="W/m2"                           />
      <field id="qclosea"      long_name="closed sea heat content flux"          standard_name="closea_heat_content_downward_flux"                                    unit="W/m2"     />
      <field id="erp"          long_name="Surface Water Flux: Damping"           standard_name="water_flux_out_of_sea_water_due_to_newtonian_relaxation"              unit="kg/m2/s"                        />
      <field id="taum"         long_name="wind stress module"                    standard_name="magnitude_of_surface_downward_stress"                                 unit="N/m2"                           />
      <field id="wspd"         long_name="wind speed module"                     standard_name="wind_speed"                                                           unit="m/s"                            />

      <!-- * variable relative to atmospheric pressure forcing : available with ln_apr_dyn -->
      <field id="ssh_ib"       long_name="Inverse barometer sea surface height"  standard_name="sea_surface_height_correction_due_to_air_pressure_at_low_frequency"   unit="m"        />

      <!-- *_oce variables available with ln_blk_clio or ln_blk_core -->
      <field id="rho_air"      long_name="Air density at 10m above sea surface"         standard_name="rho_air_10m"                                        unit="kg/m3" />
      <field id="dt_skin"      long_name="SSST-SST temperature difference"              standard_name="SSST-SST"                                             unit="K"   />
      <field id="qlw_oce"      long_name="Longwave Downward Heat Flux over open ocean"  standard_name="surface_net_downward_longwave_flux"                 unit="W/m2"  />
      <field id="qsb_oce"      long_name="Sensible Downward Heat Flux over open ocean"  standard_name="surface_downward_sensible_heat_flux"                unit="W/m2"  />
      <field id="qla_oce"      long_name="Latent Downward Heat Flux over open ocean"    standard_name="surface_downward_latent_heat_flux"                  unit="W/m2"  />
      <field id="evap_oce"     long_name="Evaporation over open ocean"                  standard_name="evaporation"                                        unit="kg/m2/s" />
      <field id="qt_oce"       long_name="total flux at ocean surface"                  standard_name="surface_downward_heat_flux_in_sea_water"            unit="W/m2"  />
      <field id="qsr_oce"      long_name="solar heat flux at ocean surface"             standard_name="net_downward_shortwave_flux_at_sea_water_surface"   unit="W/m2"  />
      <field id="qns_oce"      long_name="non-solar heat flux at ocean surface (including E-P)"                                                            unit="W/m2"  />
      <field id="qemp_oce"     long_name="Downward Heat Flux from E-P over open ocean"                                                                     unit="W/m2"  />
      <field id="taum_oce"     long_name="wind stress module over open ocean"           standard_name="magnitude_of_surface_downward_stress"               unit="N/m2"  />
      <field id="utau_oce"     long_name="Wind Stress along i-axis over open ocean (T-points)"  standard_name="surf_down_x_stress_open_oce_Tpoints"        unit="N/m2"   />
      <field id="vtau_oce"     long_name="Wind Stress along j-axis over open ocean (T-points)"  standard_name="surf_down_y_stress_open_oce_Tpoints"        unit="N/m2"    />

      <!-- variables computed by the bulk parameterization algorithms (ln_blk) -->
      <field id="Cd_oce"      long_name="Drag coefficient over open ocean"              standard_name="drag_coefficient_water"                unit=""  />
      <field id="Ce_oce"      long_name="Evaporaion coefficient over open ocean"        standard_name="evap_coefficient_water"                unit=""  />
      <field id="Ch_oce"      long_name="Sensible heat coefficient over open ocean"     standard_name="sensible_heat_coefficient_water"       unit=""  />
      <field id="theta_zt"    long_name="Potential air temperature at z=zt"             standard_name="potential_air_temperature_at_zt"       unit="degC" />
      <field id="q_zt"        long_name="Specific air humidity at z=zt"                 standard_name="specific_air_humidity_at_zt"           unit="kg/kg" />
      <field id="theta_zu"    long_name="Potential air temperature at z=zu"             standard_name="potential_air_temperature_at_zu"       unit="degC" />
      <field id="q_zu"        long_name="Specific air humidity at z=zu"                 standard_name="specific_air_humidity_at_zu"           unit="kg/kg" />
      <field id="ssq"         long_name="Saturation specific humidity of air at z=0"    standard_name="surface_air_saturation_spec_humidity"  unit="kg/kg" />
      <field id="wspd_blk"    long_name="Bulk wind speed at z=zu"                       standard_name="bulk_wind_speed_at_zu"                 unit="m/s"   />
      <!-- ln_blk + key_si3 -->
      <field id="Cd_ice"      long_name="Drag coefficient over ice"                     standard_name="drag_coefficient_ice"                 unit=""  />
      <field id="Ce_ice"      long_name="Evaporaion coefficient over ice"               standard_name="evap_coefficient_ice"                 unit=""  />
      <field id="Ch_ice"      long_name="Sensible heat coefficient over ice"            standard_name="sensible_heat_coefficient_ice"        unit=""  />

      <!-- available key_oasis3 -->
      <field id="snow_ao_cea"  long_name="Snow over ice-free ocean (cell average)"   standard_name="snowfall_flux"                             unit="kg/m2/s"  />
      <field id="snow_ai_cea"  long_name="Snow over sea-ice (cell average)"          standard_name="snowfall_flux"                             unit="kg/m2/s"  />
      <field id="subl_ai_cea"  long_name="Sublimation over sea-ice (cell average)"   standard_name="surface_snow_and_ice_sublimation_flux"     unit="kg/m2/s"  />
      <field id="icealb_cea"   long_name="Ice albedo (cell average)"                 standard_name="sea_ice_albedo"                            unit="1"        />
      <field id="calving_cea"  long_name="Calving"                                   standard_name="water_flux_into_sea_water_from_icebergs"   unit="kg/m2/s"  />
      <field id="iceberg_cea"  long_name="Iceberg"                                   standard_name="water_flux_into_sea_water_from_icebergs"   unit="kg/m2/s"  />
      <field id="iceshelf_cea" long_name="Iceshelf"                                  standard_name="water_flux_into_sea_water_from_iceshelf"   unit="kg/m2/s"  />


      <!-- available if key_oasis3 + conservative method -->
      <field id="rain"          long_name="Liquid precipitation"                                     standard_name="rainfall_flux"                                                                 unit="kg/m2/s"  />
      <field id="rain_ao_cea"   long_name="Liquid precipitation over ice-free ocean (cell average)"  standard_name="rainfall_flux"                                                                 unit="kg/m2/s"  />
      <field id="evap_ao_cea"   long_name="Evaporation over ice-free ocean (cell average)"           standard_name="water_evaporation_flux"                                                        unit="kg/m2/s"  />
      <field id="isnwmlt_cea"   long_name="Snow over Ice melting (cell average)"                     standard_name="surface_snow_melt_flux"                                                        unit="kg/m2/s"  />
      <field id="fsal_virt_cea" long_name="Virtual salt flux due to ice formation (cell average)"    standard_name="virtual_salt_flux_into_sea_water_due_to_sea_ice_thermodynamics"                unit="kg/m2/s"  />
      <field id="fsal_real_cea" long_name="Real salt flux due to ice formation (cell average)"       standard_name="downward_sea_ice_basal_salt_flux"                                              unit="kg/m2/s"  />
      <field id="hflx_rain_cea" long_name="heat flux due to rainfall"                                standard_name="temperature_flux_due_to_rainfall_expressed_as_heat_flux_into_sea_water"        unit="W/m2"     />
      <field id="hflx_evap_cea" long_name="heat flux due to evaporation"                             standard_name="temperature_flux_due_to_evaporation_expressed_as_heat_flux_out_of_sea_water"   unit="W/m2"     />
      <field id="hflx_subl_cea" long_name="heat flux due to sublimation (from atm. forcings)"        standard_name="temperature_flux_due_to_sublimation_expressed_as_heat_flux_out_of_sea_ice"     unit="W/m2"     />
      <field id="hflx_prec_cea" long_name="heat flux due to all precip"                              standard_name="temperature_flux_due_to_all_precip_expressed_as_heat_flux_into_sea_water"      unit="W/m2"     />
      <field id="hflx_snow_cea" long_name="heat flux due to snow falling"                            standard_name="heat_flux_onto_ocean_and_ice_due_to_snow_thermodynamics"                       unit="W/m2"     />
      <field id="hflx_snow_ai_cea" long_name="heat flux due to snow falling over ice"                standard_name="heat_flux_onto_ice_due_to_snow_thermodynamics"                                 unit="W/m2"     />
      <field id="hflx_snow_ao_cea" long_name="heat flux due to snow falling over ice-free ocean"     standard_name="heat_flux_onto_sea_water_due_to_snow_thermodynamics"                           unit="W/m2"     />
      <field id="hflx_ice_cea"  long_name="heat flux due to ice thermodynamics"                      standard_name="heat_flux_into_sea_water_due_to_sea_ice_thermodynamics"                        unit="W/m2"     />
      <field id="hflx_rnf_cea"  long_name="heat flux due to runoffs"                                 standard_name="temperature_flux_due_to_runoff_expressed_as_heat_flux_into_sea_water"          unit="W/m2"     />
      <field id="sflx_rnf_cea"  long_name="salt flux due to runoffs"                                 standard_name="salt_flux_due_to_runoffs"                                                      unit="g/m2/s"   />
      <field id="hflx_cal_cea"  long_name="heat flux due to calving"                                 standard_name="heat_flux_into_sea_water_due_to_calving"                                       unit="W/m2"     />
      <field id="hflx_icb_cea"  long_name="heat flux due to iceberg"                                 standard_name="heat_flux_into_sea_water_due_to_icebergs"                                      unit="W/m2"     />
      <field id="hflx_isf_cea"  long_name="heat flux due to iceshelf"                                standard_name="heat_flux_into_sea_water_due_to_iceshelf"                                      unit="W/m2"     />
      <field id="bicemel_cea"   long_name="Rate of Melt at Sea Ice Base (cell average)"              standard_name="tendency_of_sea_ice_amount_due_to_basal_melting"                               unit="kg/m2/s"  />
      <field id="licepro_cea"   long_name="Lateral Sea Ice Growth Rate (cell average)"               standard_name="tendency_of_sea_ice_amount_due_to_lateral_growth_of_ice_floes"                 unit="kg/m2/s"  />
      <field id="snowmel_cea"   long_name="Snow Melt Rate (cell average)"                            standard_name="surface_snow_melt_flux"                                                        unit="kg/m2/s"  />
      <field id="sntoice_cea"   long_name="Snow-Ice Formation Rate (cell average)"                   standard_name="tendency_of_sea_ice_amount_due_to_snow_conversion"                             unit="kg/m2/s"  />
      <field id="ticemel_cea"   long_name="Rate of Melt at Upper Surface of Sea Ice (cell average)"  standard_name="tendency_of_sea_ice_amount_due_to_surface_melting"                             unit="kg/m2/s"  />

      <!-- fluxes from relaxation and freshwater budget -->
      <field id="sflx_ssr_cea"  long_name="salt flux due to restoring"    standard_name="salt_flux_due_to_restoring"    unit="g/m2/s"   />
      <field id="hflx_ssr_cea"  long_name="heat flux due to restoring"    standard_name="heat_flux_due_to_restoring"    unit="W/m2"     />
      <field id="vflx_ssr_cea"  long_name="volume flux due to restoring"  standard_name="volume_flux_due_to_restoring"  unit="kg/m2/s"  />
      <field id="hflx_fwb_cea"  long_name="heat flux due to fwb"          standard_name="heat_flux_due_to_fwb"          unit="W/m2"     />
      <field id="vflx_fwb_cea"  long_name="volume flux due to fwb"        standard_name="volume_flux_due_to_fwb"        unit="kg/m2/s"  />
      
      <!-- ice field (nn_ice=1)  -->
      <field id="ice_cover"    long_name="Ice fraction"                                                 standard_name="sea_ice_area_fraction"                              unit="1"            />

      <!-- dilution -->
      <field id="emp_x_sst"    long_name="Concentration/Dilution term on SST"                                                                                              unit="kg*degC/m2/s" />
      <field id="emp_x_sss"    long_name="Concentration/Dilution term on SSS"                                                                                              unit="kg*1e-3/m2/s" />
      <field id="rnf_x_sst"    long_name="Runoff term on SST"                                                                                                              unit="kg*degC/m2/s" />
      <field id="rnf_x_sss"    long_name="Runoff term on SSS"                                                                                                              unit="kg*1e-3/m2/s" />

      <!-- sbcssm variables -->
      <field id="sst_m"    unit="degC" />
      <field id="sss_m"    unit="psu"  />
      <field id="ssu_m"    unit="m/s"  />
      <field id="ssv_m"    unit="m/s"  />
      <field id="ssh_m"    unit="m"    />
      <field id="e3t_m"    unit="m"    />
      <field id="frq_m"    unit="-"    />

    </field_group>


  </field_group> <!-- SBC -->

  <!-- ABL -->
  <field_group id="ABL" > <!-- time step automaticaly defined based on nn_fsbc -->

    <!-- variables available with ABL on atmospheric T grid-->
    <field_group id="grid_ABL3D" grid_ref="grid_TA_3D" >
      <field id="u_abl"      long_name="ABL i-horizontal velocity"     standard_name="abl_x_velocity" unit="m/s"      />
      <field id="v_abl"      long_name="ABL j-horizontal velocity"     standard_name="abl_y_velocity" unit="m/s"      />
      <field id="t_abl"      long_name="ABL potential temperature"     standard_name="abl_theta"      unit="K"        />
      <field id="q_abl"      long_name="ABL specific humidity"         standard_name="abl_qspe"       unit="kg/kg"    />
      <!-- debug (to be removed) -->
      <field id="u_dta"      long_name="DTA i-horizontal velocity"     standard_name="dta_x_velocity" unit="m/s"      />
      <field id="v_dta"      long_name="DTA j-horizontal velocity"     standard_name="dta_y_velocity" unit="m/s"      />
      <field id="t_dta"      long_name="DTA potential temperature"     standard_name="dta_theta"      unit="K"        />
      <field id="q_dta"      long_name="DTA specific humidity"         standard_name="dta_qspe"       unit="kg/kg"    />
      <field id="u_geo"      long_name="GEO i-horizontal velocity"     standard_name="geo_x_velocity" unit="m/s"      />
      <field id="v_geo"      long_name="GEO j-horizontal velocity"     standard_name="geo_y_velocity" unit="m/s"      />
      <field id="tke_abl"    long_name="ABL turbulent kinetic energy"  standard_name="abl_tke"        unit="m2/s2"    />
      <field id="avm_abl"    long_name="ABL turbulent viscosity"       standard_name="abl_avm"        unit="m2/s"     />
      <field id="avt_abl"    long_name="ABL turbulent diffusivity"     standard_name="abl_avt"        unit="m2/s"     />
      <field id="mxlm_abl"   long_name="ABL master mixing length"      standard_name="abl_mxlm"       unit="m"        />
      <field id="mxld_abl"   long_name="ABL dissipative mixing length" standard_name="abl_mxld"       unit="m"        />
    </field_group>

    <field_group id="grid_ABL2D" grid_ref="grid_TA_2D" >
      <field id="pblh"       long_name="ABL height"                    standard_name="abl_height"     unit="m"        />
      <field id="uz1_abl"    long_name="ABL i-horizontal velocity"     standard_name="abl_x_velocity" unit="m/s"      />
      <field id="vz1_abl"    long_name="ABL j-horizontal velocity"     standard_name="abl_y_velocity" unit="m/s"      />
      <field id="uvz1_abl"   long_name="ABL wind speed module"         standard_name="abl_wind_speed" unit="m/s"       > sqrt( uz1_abl^2 + vz1_abl^2 ) </field>
      <field id="tz1_abl"    long_name="ABL potential temperature"     standard_name="abl_theta"      unit="K"        />
      <field id="qz1_abl"    long_name="ABL specific humidity"         standard_name="abl_qspe"       unit="kg/kg"    />
      <field id="uz1_dta"    long_name="DTA i-horizontal velocity"     standard_name="dta_x_velocity" unit="m/s"      />
      <field id="vz1_dta"    long_name="DTA j-horizontal velocity"     standard_name="dta_y_velocity" unit="m/s"      />
      <field id="uvz1_dta"   long_name="DTA wind speed module"         standard_name="dta_wind_speed" unit="m/s"       > sqrt( uz1_dta^2 + vz1_dta^2 ) </field>
      <field id="tz1_dta"    long_name="DTA potential temperature"     standard_name="dta_theta"      unit="K"        />
      <field id="qz1_dta"    long_name="DTA specific humidity"         standard_name="dta_qspe"       unit="kg/kg"    />
      <!-- debug (to be removed) -->
      <field id="uz1_geo"    long_name="GEO i-horizontal velocity"     standard_name="geo_x_velocity" unit="m/s"      />
      <field id="vz1_geo"    long_name="GEO j-horizontal velocity"     standard_name="geo_y_velocity" unit="m/s"      />
      <field id="uvz1_geo"   long_name="GEO wind speed module"         standard_name="geo_wind_speed" unit="m/s"       > sqrt( uz1_geo^2 + vz1_geo^2 ) </field>
    </field_group>

  </field_group> <!-- ABL -->


  <!-- U grid -->

  <field_group id="grid_U"   grid_ref="grid_U_2D">
    <field id="hu"            long_name="water column height at U point"                         standard_name="water_column_height_U"       unit="m" />
    <field id="e2u"           long_name="U-cell width in meridional direction"                   standard_name="cell_width"                  unit="m"                               />
    <field id="e3u"           long_name="U-cell thickness"                                       standard_name="cell_thickness"              unit="m"          grid_ref="grid_U_3D" />
    <field id="e3u_0"         long_name="Initial U-cell thickness"                               standard_name="ref_cell_thickness"          unit="m"          grid_ref="grid_U_3D"/>
    <field id="utau"          long_name="Wind Stress along i-axis"                               standard_name="surface_downward_x_stress"   unit="N/m2"                            />
    <field id="uoce"          long_name="ocean current along i-axis"                             standard_name="sea_water_x_velocity"        unit="m/s"        grid_ref="grid_U_3D" />
    <field id="uoce_e3u"      long_name="ocean current along i-axis  (thickness weighted)"                                                   unit="m/s"        grid_ref="grid_U_3D"  > uoce * e3u </field>
    <field id="uoce_e3u_vsum" long_name="ocean current along i-axis * e3u summed on the vertical"  field_ref="uoce_e3u"    unit="m3/s"       grid_ref="grid_U_vsum"/>
    <field id="uocetr_vsum"   long_name="ocean transport along i-axis  summed on the vertical"         field_ref="e2u"       unit="m3/s"> this * uoce_e3u_vsum  </field>

    <field id="uocetr_vsum_op"    long_name="ocean current along i-axis * e3u * e2u summed on the vertical"  read_access="true"  freq_op="1mo"    field_ref="e2u"       unit="m3/s"> @uocetr_vsum </field>
    <field id="uocetr_vsum_cumul" long_name="ocean current along i-axis * e3u * e2u cumulated from southwest point" freq_offset="_reset_" operation="instant" freq_op="1mo"  unit="m3/s" />
    <field id="msftbarot"         long_name="ocean_barotropic_mass_streamfunction"   unit="kg s-1" > uocetr_vsum_cumul * $rho0 </field>


    <field id="ssu"          long_name="ocean surface current along i-axis"                                                                 unit="m/s"                             />
    <field id="sbu"          long_name="ocean bottom current along i-axis"                                                                  unit="m/s"  grid_ref="grid_U_2D_inner" />
    <field id="ubar"         long_name="ocean barotropic current along i-axis"                                                              unit="m/s"                             />
    <field id="uocetr_eff"   long_name="Effective ocean transport along i-axis"                 standard_name="ocean_volume_x_transport"    unit="m3/s"       grid_ref="grid_U_3D" />
    <field id="uocet"        long_name="ocean transport along i-axis times temperature (CRS)"                                               unit="degC*m/s"   grid_ref="grid_U_3D" />
    <field id="uoces"        long_name="ocean transport along i-axis times salinity (CRS)"                                                  unit="1e-3*m/s"   grid_ref="grid_U_3D" />
    <field id="ssuww"        long_name="ocean surface wind work along i-axis"                   standard_name="surface_x_wind_work"         unit="N/m*s"                            > utau * ssu </field>
    <!-- AGRIF sponge -->
    <field id="agrif_spu"    long_name=" AGRIF u-sponge coefficient"   unit=" " />
    <!-- u-eddy diffusivity coefficients (available if ln_traldf_OFF=F) -->
    <field id="ahtu_2d"      long_name=" surface u-eddy diffusivity coefficient"   unit="m2/s or m4/s" />
    <field id="ahtu_3d"      long_name=" 3D u-EIV coefficient"                     unit="m2/s or m4/s"      grid_ref="grid_U_3D"/>
    <!-- u-eiv diffusivity coefficients (available if ln_ldfeiv=F) -->
    <field id="aeiu_2d"      long_name=" surface u-EIV coefficient"                unit="m2/s" />
    <field id="aeiu_3d"      long_name=" 3D u-EIV coefficient"                     unit="m2/s"              grid_ref="grid_U_3D"/>

    <!-- variables available with MLE (ln_mle=T) -->
    <field id="psiu_mle"     long_name="MLE streamfunction along i-axis"   unit="m3/s"   grid_ref="grid_U_3D" />

    <!-- uoce_eiv: available EIV (ln_ldfeiv=T and ln_ldfeiv_dia=T) -->
    <field id="uoce_eiv"      long_name="EIV ocean current along i-axis"                                  standard_name="bolus_sea_water_x_velocity"                     unit="m/s"   grid_ref="grid_U_3D" />
    <field id="ueiv_masstr"   long_name="EIV Ocean Mass X Transport"                                      standard_name="bolus_ocean_mass_x_transport"                   unit="kg/s"  grid_ref="grid_U_3D" />
    <field id="ueiv_heattr"   long_name="ocean bolus heat transport along i-axis"                         standard_name="ocean_heat_x_transport_due_to_bolus_advection"  unit="W"                         />
    <field id="ueiv_salttr"   long_name="ocean bolus salt transport along i-axis"                         standard_name="ocean_salt_x_transport_due_to_bolus_advection"  unit="Kg"                        />
    <field id="ueiv_heattr3d" long_name="ocean bolus heat transport along i-axis"                         standard_name="ocean_heat_x_transport_due_to_bolus_advection"  unit="W"     grid_ref="grid_U_3D" />
    <field id="ueiv_salttr3d" long_name="ocean bolus salt transport along i-axis"                         standard_name="ocean_salt_x_transport_due_to_bolus_advection"  unit="kg"    grid_ref="grid_U_3D" />

    <!-- uoce_bbl: available with ln_trabbl=T and nn_bbl_adv=1 -->
    <field id="uoce_bbl"     long_name="BBL ocean current along i-axis"    unit="m/s"  />
    <!-- ahu_bbl : available with ln_trabbl=T and nn_bbl_ldf=1 -->
    <field id="ahu_bbl"      long_name="BBL diffusive flux along i-axis"   unit="m3/s" />

    <!-- variables available with WAVE (ln_wave=T) -->
    <field id="ustokes"      long_name="Stokes Drift Velocity i-axis"      standard_name="StokesDrift_x_velocity"      unit="m/s"        grid_ref="grid_U_3D" />
    <field id="ustokes_e3u"  long_name="Stokes Drift Velocity i-axis  (thickness weighted)"                            unit="m/s"        grid_ref="grid_U_3D"  > ustokes * e3u </field>

    <!-- variable for ice shelves -->
    <field id="utbl"         long_name="zonal current in the Losh tbl"     unit="m/s" />

    <!-- variables available with diaar5 -->
    <field id="u_masstr"      long_name="Ocean Mass X Transport"                                          standard_name="ocean_mass_x_transport"                         unit="kg/s"   grid_ref="grid_U_3D" />
    <field id="u_masstr_vint" long_name="vertical integral of ocean eulerian mass transport along i-axis" standard_name="vertical_integral_of_ocean_mass_x_transport"    unit="kg/s"   grid_ref="grid_U_2D_inner" />
    <field id="u_heattr"      long_name="ocean eulerian heat transport along i-axis"                      standard_name="ocean_heat_x_transport"                         unit="W"      grid_ref="grid_U_2D_inner" />
    <field id="u_salttr"      long_name="ocean eulerian salt transport along i-axis"                      standard_name="ocean_salt_x_transport"                         unit="1e-3*kg/s" grid_ref="grid_U_2D_inner" />
    <field id="uadv_heattr"   long_name="ocean advective heat transport along i-axis"                     standard_name="advectice_ocean_heat_x_transport"               unit="W"                         />
    <field id="uadv_salttr"   long_name="ocean advective salt transport along i-axis"                     standard_name="advectice_ocean_salt_x_transport"               unit="1e-3*kg/s"                 />
    <field id="udiff_heattr"  long_name="ocean diffusion heat transport along i-axis"                     standard_name="ocean_heat_x_transport_due_to_diffusion"        unit="W"                         />
    <field id="udiff_salttr"  long_name="ocean diffusion salt transport along i-axis"                     standard_name="ocean_salt_x_transport_due_to_diffusion"        unit="1e-3*kg/s"                 />
  </field_group>

  <!-- V grid -->

  <field_group id="grid_V"   grid_ref="grid_V_2D">
    <field id="e1v"          long_name="V-cell width in longitudinal direction"                 standard_name="cell_width"                  unit="m"                              />
    <field id="e3v"          long_name="V-cell thickness"                                       standard_name="cell_thickness"              unit="m"          grid_ref="grid_V_3D" />
    <field id="e3v_0"        long_name="Initial V-cell thickness"                               standard_name="ref_cell_thickness"          unit="m"          grid_ref="grid_V_3D" />
    <field id="hv"            long_name="water column height at V point"                        standard_name="water_column_height_V"       unit="m" />
    <field id="vtau"         long_name="Wind Stress along j-axis"                               standard_name="surface_downward_y_stress"   unit="N/m2"                            />
    <field id="voce"         long_name="ocean current along j-axis"                             standard_name="sea_water_y_velocity"        unit="m/s"        grid_ref="grid_V_3D" />
    <field id="voce_e3v"     long_name="ocean current along j-axis  (thickness weighted)"                                                   unit="m/s"        grid_ref="grid_V_3D"  > voce * e3v </field>
    <field id="ssv"          long_name="ocean surface current along j-axis"                                                                 unit="m/s"                             />
    <field id="sbv"          long_name="ocean bottom current along j-axis"                                                                  unit="m/s"  grid_ref="grid_V_2D_inner" />
    <field id="vbar"         long_name="ocean barotropic current along j-axis"                                                              unit="m/s"                             />
    <field id="vocetr_eff"   long_name="Effective ocean transport along j-axis"                 standard_name="ocean_volume_y_transport"    unit="m3/s"       grid_ref="grid_V_3D" />
    <field id="vocet"        long_name="ocean transport along j-axis times temperature (CRS)"                                               unit="degC*m/s"   grid_ref="grid_V_3D" />
    <field id="voces"        long_name="ocean transport along j-axis times salinity (CRS)"                                                  unit="1e-3*m/s"   grid_ref="grid_V_3D" />
    <field id="ssvww"        long_name="ocean surface wind work along j-axis"                   standard_name="surface_y_wind_work"         unit="N/m*s"                            > vtau * ssv </field>
    <!-- AGRIF sponge -->
    <field id="agrif_spv"    long_name=" AGRIF v-sponge coefficient"   unit=" " />
    <!-- v-eddy diffusivity coefficients (available if ln_traldf_OFF=F) -->
    <field id="ahtv_2d"      long_name=" surface v-eddy diffusivity coefficient"     unit="m2/s or (m4/s)^1/2" />
    <field id="ahtv_3d"      long_name=" 3D v-eddy diffusivity coefficient"          unit="m2/s or (m4/s)^1/2"           grid_ref="grid_V_3D"/>
    <!-- v-eiv diffusivity coefficients (available if ln_ldfeiv=F) -->
    <field id="aeiv_2d"      long_name=" surface v-EIV coefficient"                  unit="m2/s" />
    <field id="aeiv_3d"      long_name=" 3D v-EIV coefficient"                       unit="m2/s"                         grid_ref="grid_V_3D" />

    <!-- variables available with MLE (ln_mle=T) -->
    <field id="psiv_mle"     long_name="MLE streamfunction along j-axis"   unit="m3/s"   grid_ref="grid_V_3D" />

    <!-- voce_eiv: available EIV (ln_ldfeiv=T and ln_ldfeiv_dia=T)  -->
    <field id="voce_eiv"     long_name="EIV ocean current along j-axis"  standard_name="bolus_sea_water_y_velocity"     unit="m/s"   grid_ref="grid_V_3D" />
    <field id="veiv_masstr"  long_name="EIV Ocean Mass Y Transport"      standard_name="bolus_ocean_mass_y_transport"   unit="kg/s"  grid_ref="grid_V_3D" />
    <field id="veiv_heattr"   long_name="ocean bolus heat transport along j-axis"       standard_name="ocean_heat_y_transport_due_to_bolus_advection"   unit="W"                         />
    <field id="veiv_salttr"   long_name="ocean bolus salt transport along j-axis"       standard_name="ocean_salt_x_transport_due_to_bolus_advection"   unit="Kg"                        />
    <field id="veiv_heattr3d" long_name="ocean bolus heat transport along j-axis"       standard_name="ocean_heat_y_transport_due_to_bolus_advection"   unit="W"    grid_ref="grid_V_3D" />
    <field id="veiv_salttr3d" long_name="ocean bolus salt transport along j-axis"       standard_name="ocean_salt_y_transport_due_to_bolus_advection"   unit="kg"   grid_ref="grid_V_3D" />


    <!-- voce_bbl: available with ln_trabbl=T and nn_bbl_adv=1 -->
    <field id="voce_bbl"     long_name="BBL ocean current along j-axis"    unit="m/s"  />
    <!-- ahu_bbl : available with ln_trabbl=T and nn_bbl_ldf=1 -->
    <field id="ahv_bbl"      long_name="BBL diffusive flux along j-axis"   unit="m3/s" />

    <!-- variables available with WAVE (ln_wave=T) -->
    <field id="vstokes"      long_name="Stokes Drift Velocity j-axis"      standard_name="StokesDrift_y_velocity"      unit="m/s"        grid_ref="grid_V_3D" />
    <field id="vstokes_e3v"  long_name="Stokes Drift Velocity j-axis  (thickness weighted)"                            unit="m/s"        grid_ref="grid_V_3D"  > vstokes * e3v </field>

    <!-- variable for ice shelves -->
    <field id="vtbl"         long_name="meridional current in the Losh tbl"   unit="m/s" />

    <!-- variables available with diaar5 -->
    <field id="v_masstr"      long_name="ocean eulerian mass transport along j-axis"    standard_name="ocean_mass_y_transport"                          unit="kg/s" grid_ref="grid_V_3D" />
    <field id="v_heattr"      long_name="ocean eulerian heat transport along j-axis"    standard_name="ocean_heat_y_transport"                          unit="W"          grid_ref="grid_V_2D_inner" />
    <field id="v_salttr"      long_name="ocean eulerian salt transport along i-axis"    standard_name="ocean_salt_y_transport"                          unit="1e-3*kg/s"  grid_ref="grid_V_2D_inner" />
    <field id="vadv_heattr"   long_name="ocean advective heat transport along j-axis"   standard_name="advectice_ocean_heat_y_transport"                unit="W"                         />
    <field id="vadv_salttr"   long_name="ocean advective salt transport along j-axis"   standard_name="advectice_ocean_salt_y_transport"                unit="1e-3*kg/s"                 />
    <field id="vdiff_heattr"  long_name="ocean diffusion heat transport along j-axis"   standard_name="ocean_heat_y_transport_due_to_diffusion"         unit="W"                         />
    <field id="vdiff_salttr"  long_name="ocean diffusion salt transport along j-axis"   standard_name="ocean_salt_y_transport_due_to_diffusion"         unit="1e-3*kg/s"                 />
  </field_group>

  <!-- W grid -->

  <field_group id="grid_W" grid_ref="grid_W_3D">
    <field id="e3w"          long_name="W-cell thickness"                              standard_name="cell_thickness"                         unit="m"    />
    <field id="woce"         long_name="ocean vertical velocity"                       standard_name="upward_sea_water_velocity"              unit="m/s"  />
    <field id="woce_e3w"     long_name="ocean vertical velocity * e3w"                                                                        unit="m2/s"  > woce * e3w </field>
    <field id="wocetr_eff"   long_name="effective ocean vertical transport"                                                                   unit="m3/s" />

    <!-- woce_eiv: available with EIV  (ln_ldfeiv=T and ln_ldfeiv_dia=T)  -->
    <field id="woce_eiv"     long_name="EIV ocean vertical velocity"                    standard_name="bolus_upward_sea_water_velocity"       unit="m/s"  />
    <field id="weiv_masstr"  long_name="EIV Upward Ocean Mass Transport"  standard_name="bolus_upward_ocean_mass_transport"             unit="kg/s"   />
    <field id="weiv_heattr3d" long_name="ocean bolus heat transport"    standard_name="ocean_heat_z_transport_due_to_bolus_advection"   unit="W"    />
    <field id="weiv_salttr3d" long_name="ocean bolus salt transport"    standard_name="ocean_salt_z_transport_due_to_bolus_advection"   unit="kg"   />

    <field id="avt"          long_name="vertical eddy diffusivity"                      standard_name="ocean_vertical_heat_diffusivity"       unit="m2/s" />
    <field id="avt_e3w"      long_name="vertical heat diffusivity * e3w"                unit="m3/s" > avt * e3w </field>
    <field id="logavt"       long_name="logarithm of vertical eddy diffusivity"         standard_name="ocean_vertical_heat_diffusivity"       unit="m2/s" />
    <field id="avm"          long_name="vertical eddy viscosity"                        standard_name="ocean_vertical_momentum_diffusivity"   unit="m2/s" />
    <field id="avm_e3w"      long_name="vertical eddy viscosity * e3w"   unit="m3/s" > avm * e3w </field>

    <!-- avs: /= avt with ln_zdfddm=T -->
    <field id="avs"          long_name="salt vertical eddy diffusivity"                 standard_name="ocean_vertical_salt_diffusivity"       unit="m2/s" />
    <field id="avs_e3w"      long_name="vertical salt diffusivity * e3w"   unit="m3/s" > avs * e3w </field>
    <field id="logavs"       long_name="logarithm of salt vertical eddy diffusivity"    standard_name="ocean_vertical_heat_diffusivity"       unit="m2/s" />

    <!-- avt_evd and avm_evd: available with ln_zdfevd -->
    <field id="avt_evd"      long_name="convective enhancement of vertical diffusivity" standard_name="ocean_vertical_tracer_diffusivity_due_to_convection"     unit="m2/s" />
    <field id="avt_evd_e3w"  long_name="convective enhancement to vertical diffusivity * e3w "    unit="m3/s" > avt_evd * e3w </field>
    <field id="avm_evd"      long_name="convective enhancement of vertical viscosity"   standard_name="ocean_vertical_momentum_diffusivity_due_to_convection"   unit="m2/s" />

    <!-- mf_app and mf_wp: available with ln_zdfmfc -->
    <field id="mf_app"      long_name="convective area"        standard_name="mf_convective_area"    unit="%"      grid_ref="grid_W_3D" />
    <field id="mf_wp"       long_name="convective velocity"    standard_name="mf_convective_velo"    unit="m/s"    grid_ref="grid_W_3D" />


    <!-- avt_tide: available with ln_zdfiwm=T -->
    <field id="av_ratio"     long_name="S over T diffusivity ratio"                     standard_name="salinity_over_temperature_diffusivity_ratio"                     unit="1"    />
    <field id="av_wave"      long_name="internal wave-induced vertical diffusivity"     standard_name="ocean_vertical_tracer_diffusivity_due_to_internal_waves"         unit="m2/s" />
    <field id="bflx_iwm"     long_name="internal wave-induced buoyancy flux"            standard_name="buoyancy_flux_due_to_internal_waves"                             unit="W/kg" />
    <field id="pcmap_iwm"    long_name="power consumed by wave-driven mixing"           standard_name="vertically_integrated_power_consumption_by_wave_driven_mixing"   unit="W/m2"      grid_ref="grid_W_2D" />
    <field id="emix_iwm"     long_name="power density available for mixing"             standard_name="power_available_for_mixing_from_breaking_internal_waves"         unit="W/kg" />

    <!-- variables available with WAVE (ln_wave=T) -->
    <field id="wstokes"      long_name="Stokes Drift vertical velocity"                 standard_name="upward_StokesDrift_velocity"   unit="m/s" />

    <!-- variables available with diaar5 -->
    <field id="w_masstr"     long_name="vertical mass transport"                        standard_name="upward_ocean_mass_transport"             unit="kg/s"   />
    <field id="w_masstr2"    long_name="square of vertical mass transport"              standard_name="square_of_upward_ocean_mass_transport"   unit="kg2/s2" />

    <!-- EOS -->
    <field id="bn2"          long_name="squared Brunt-Vaisala frequency"                unit="s-2" />

    <!-- dissipation diagnostics (note: ediss_k is only available with tke scheme) -->   
    <field id="avt_k"        long_name="vertical eddy diffusivity from closure schemes" standard_name="ocean_vertical_eddy_diffusivity"       unit="m2/s" />
    <field id="avm_k"        long_name="vertical eddy viscosity from closure schemes"   standard_name="ocean_vertical_eddy_viscosity"         unit="m2/s" />
    <field id="ediss_k"      long_name="Kolmogorov energy dissipation (tke scheme)"     standard_name="Kolmogorov_energy_dissipation"         unit="W/kg" />
    <field id="eshear_k"     long_name="energy source from vertical shear"              standard_name="energy_source_from_shear"                                                      unit="W/kg"   grid_ref="grid_W_3D_inner" />
    <field id="estrat_k"     long_name="energy sink from stratification"                standard_name="energy_sink_from_stratification"       unit="W/kg" />
    
  </field_group>

  <!-- F grid -->
  <field_group id="grid_F" grid_ref="grid_F_2D">
    <field id="e3f"          long_name="F-cell thickness"                      standard_name="cell_thickness"         unit="m"   grid_ref="grid_F_3D" />
    <field id="e3f_0"        long_name="F-cell thickness"                      standard_name="cell_thickness"         unit="m"   grid_ref="grid_F_3D" />
    <field id="hf"           long_name="water column height at F point"        standard_name="water_column_height_F"  unit="m"                     />
    <field id="ssKEf"        long_name="surface kinetic energy at F point"     standard_name="specific_kinetic_energy_of_sea_water"   unit="m2/s2" grid_ref="grid_F_2D_inner" />
    <field id="ssrelvor"     long_name="surface relative vorticity"            standard_name="relative_vorticity"     unit="1/s"       grid_ref="grid_F_2D_inner" />
    <field id="ssplavor"     long_name="surface planetary vorticity"           standard_name="planetary_vorticity"    unit="1/s"       />
    <field id="ssrelpotvor"  long_name="surface relative potential vorticity"  standard_name="relpot_vorticity"       unit="1/m.s"     grid_ref="grid_F_2D_inner" />
    <field id="ssabspotvor"  long_name="surface absolute potential vorticity"  standard_name="abspot_vorticity"       unit="1/m.s"     grid_ref="grid_F_2D_inner" />
    <field id="ssEns"        long_name="surface enstrophy"                     standard_name="enstrophy"              unit="1/m2.s2"   grid_ref="grid_F_2D_inner" />
  </field_group>

  <!-- AGRIF sponge -->
  <field id="agrif_spf"    long_name=" AGRIF f-sponge coefficient"   unit=" " />
  <!-- f-eddy viscosity coefficients (ldfdyn) -->
  <field id="ahmf_2d"      long_name=" surface f-eddy viscosity coefficient"   unit="m2/s or m4/s" />
  <field id="ahmf_3d"      long_name=" 3D      f-eddy viscosity coefficient"   unit="m2/s or m4/s"  grid_ref="grid_T_3D"/>

  <field_group id="scalar"  grid_ref="grid_scalar"  >
    <!-- Need to have a salinity reference climatological file : sali_ref_clim_monthly -->
    <field id="voltot"     long_name="global total volume"                          standard_name="sea_water_volume"                               unit="m3"   />
    <field id="sshtot"     long_name="global mean ssh"                              standard_name="global_average_sea_level_change"                unit="m"    />
    <field id="sshsteric"  long_name="global mean ssh steric"                       standard_name="global_average_steric_sea_level_change"         unit="m"    />
    <field id="sshthster"  long_name="global mean ssh thermosteric"                 standard_name="global_average_thermosteric_sea_level_change"   unit="m"    />
    <field id="masstot"    long_name="global total mass"                            standard_name="sea_water_mass"                                 unit="kg"   />
    <field id="temptot"    long_name="global mean temperature"                      standard_name="sea_water_potential_temperature"                unit="degC" />
    <field id="saltot"     long_name="global mean salinity"                         standard_name="sea_water_salinity"                             unit="1e-3" />
    <field id="ssttot"     long_name="global mean sea surface temperature"          standard_name="sea_water_conservative_temperature"             unit="degC" />
    <!-- EOS = TEOS-10 -->
    <field id="temptot_pot" long_name="global mean potential temperature"            standard_name="sea_water_potential_temperature"               unit="degC" />

    <!-- available with ln_diahsb -->
    <field id="bgtemper"     long_name="drift in global mean temperature wrt timestep 1"                 standard_name="change_over_time_in_sea_water_potential_temperature"   unit="degC"     />
    <field id="bgsaline"     long_name="drift in global mean salinity wrt timestep 1"                    standard_name="change_over_time_in_sea_water_practical_salinity"      unit="1e-3"     />
    <field id="bgheatco"     long_name="drift in global mean heat content wrt timestep 1"                                                                                      unit="1.e20J"   />
    <field id="bgheatfx"     long_name="drift in global mean heat flux    wrt timestep 1"                                                                                      unit="W/m2"     />
    <field id="bgsaltco"     long_name="drift in global mean salt content wrt timestep 1"                                                                                      unit="1e-3*km3" />
    <field id="bgvolssh"     long_name="drift in global mean ssh volume wrt timestep 1"                                                                                        unit="km3"      />
    <field id="bgvole3t"     long_name="drift in global mean volume variation (e3t) wrt timestep 1"                                                                            unit="km3"      />
    <field id="bgfrcvol"     long_name="global mean volume from forcing"                                                                                                       unit="km3"      />
    <field id="bgfrctem"     long_name="global mean heat content from forcing"                                                                                                 unit="1.e20J"   />
    <field id="bgfrchfx"     long_name="global mean heat flux from forcing"                                                                                                    unit="W/m2"     />
    <field id="bgfrcsal"     long_name="global mean salt content from forcing"                                                                                                 unit="1e-3*km3" />
    <field id="bgmistem"     long_name="global mean temperature error due to free surface (linssh true)"                                                                       unit="degC"     />
    <field id="bgmissal"     long_name="global mean salinity error due to free surface (linssh true)"                                                                          unit="1e-3"     />
  </field_group>


  <!-- transects -->
  <field_group id="oce_straits">
    <field id="uoce_e3u_ave"         long_name="Monthly average of u*e3u"                        field_ref="uoce_e3u"                    freq_op="1mo"   freq_offset="_reset_" > @uoce_e3u </field>
    <field id="uoce_e3u_ave_vsum"    long_name="Vertical sum of u*e3u"                           field_ref="uoce_e3u_ave"         grid_ref="grid_U_vsum"     />
    <field id="uocetr_vsum_section"  long_name="Total 2D transport in i-direction"               field_ref="uoce_e3u_ave_vsum"    grid_ref="grid_U_scalar"  detect_missing_value="true"> this * e2u </field>
    <field id="uocetr_strait"        long_name="Total transport across lines in i-direction"     field_ref="uocetr_vsum_section"  grid_ref="grid_U_4strait" />
    <field id="u_masstr_strait"      long_name="Sea water transport across line in i-direction"  field_ref="uocetr_strait"        grid_ref="grid_U_4strait_hsum" unit="kg/s"> this * maskMFO_u * $rho0 </field>

    <field id="voce_e3v_ave"         long_name="Monthly average of v*e3v"                        field_ref="voce_e3v"                    freq_op="1mo"   freq_offset="_reset_" > @voce_e3v </field>
    <field id="voce_e3v_ave_vsum"    long_name="Vertical sum of v*e3v"                           field_ref="voce_e3v_ave"         grid_ref="grid_V_vsum"      />
    <field id="vocetr_vsum_section"  long_name="Total 2D transport of in j-direction"            field_ref="voce_e3v_ave_vsum"    grid_ref="grid_V_scalar"  detect_missing_value="true"> this * e1v </field>
    <field id="vocetr_strait"        long_name="Total transport across lines in j-direction"     field_ref="vocetr_vsum_section"  grid_ref="grid_V_4strait"  />
    <field id="v_masstr_strait"      long_name="Sea water transport across line in j-direction"  field_ref="vocetr_strait"        grid_ref="grid_V_4strait_hsum" unit="kg/s"> this * maskMFO_v * $rho0 </field>

    <field id="masstr_strait"        long_name="Sea water transport across line"                                                  grid_ref="grid_4strait"  > u_masstr_strait + v_masstr_strait </field>
  </field_group>

  <!-- variables available with ln_floats -->

  <field_group id="floatvar" grid_ref="grid_T_nfloat"  operation="instant" >
    <field id="traj_lon"      long_name="floats longitude"                                                           unit="degrees_east"  />
    <field id="traj_lat"      long_name="floats latitude"                                                            unit="degrees_north" />
    <field id="traj_dep"      long_name="floats depth"                                                               unit="m"             />
    <field id="traj_temp"     long_name="floats temperature"       standard_name="sea_water_potential_temperature"   unit="degC"          />
    <field id="traj_salt"     long_name="floats salinity"          standard_name="sea_water_practical_salinity"      unit="1e-3"          />
    <field id="traj_dens"     long_name="floats in-situ density"   standard_name="sea_water_density"                 unit="kg/m3"         />
    <field id="traj_group"    long_name="floats group"                                                               unit="1"             />
  </field_group>

  <!-- variables available with iceberg trajectories -->

  <field_group id="icbvar" domain_ref="grid_T"  >
    <field id="berg_melt"          long_name="icb melt rate of icebergs"                       unit="kg/m2/s"                    />
    <field id="berg_melt_hcflx"    long_name="icb heat flux to ocean due to melting heat content"   unit="J/m2/s"                />
    <field id="berg_melt_qlat"     long_name="icb heat flux to ocean due to melting latent heat"    unit="J/m2/s"                />
    <field id="berg_buoy_melt"     long_name="icb buoyancy component of iceberg melt rate"     unit="kg/m2/s"                    />
    <field id="berg_eros_melt"     long_name="icb erosion component of iceberg melt rate"      unit="kg/m2/s"                    />
    <field id="berg_conv_melt"     long_name="icb convective component of iceberg melt rate"   unit="kg/m2/s"                    />
    <field id="berg_virtual_area"  long_name="icb virtual coverage by icebergs"                unit="m2"                         />
    <field id="bits_src"           long_name="icb mass source of bergy bits"                   unit="kg/m2/s"                    />
    <field id="bits_melt"          long_name="icb melt rate of bergy bits"                     unit="kg/m2/s"                    />
    <field id="bits_mass"          long_name="icb bergy bit density field"                     unit="kg/m2"                      />
    <field id="berg_mass"          long_name="icb iceberg density field"                       unit="kg/m2"                      />
    <field id="calving"            long_name="icb calving mass input"                          unit="kg/s"                       />
    <field id="berg_floating_melt" long_name="icb melt rate of icebergs + bits"                unit="kg/m2/s"                    />
    <field id="berg_real_calving"  long_name="icb calving into iceberg class"                  unit="kg/s"     axis_ref="icbcla" />
    <field id="berg_stored_ice"    long_name="icb accumulated ice mass by class"               unit="kg"       axis_ref="icbcla" />
  </field_group>

  <!-- Poleward transport : ptr -->
  <field_group id="diaptr" >
    <field id="zomsf"         long_name="Overturning Stream-Function : All basins"                     unit="Sv"         grid_ref="grid_znl_W_3D" />
    <field id="zotem"         long_name="Zonal Mean Temperature : All basins"                          unit="degree_C"   grid_ref="grid_znl_T_3D" />
    <field id="zosal"         long_name="Zonal Mean Salinity : All basins"                             unit="0.001"      grid_ref="grid_znl_T_3D" />
    <field id="zosrf"         long_name="Zonal Mean Surface : All basins"                              unit="m2"         grid_ref="grid_znl_T_3D" />
    <field id="sophtove"      long_name="Overturning Heat Transport: All basins"                       unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopstove"      long_name="Overturning Salt Transport: All basins"                       unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophtbtr"      long_name="Barotropic Heat Transport: All basins"                        unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopstbtr"      long_name="Barotropic Salt Transport: All basins"                        unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophtadv"      long_name="Advective Heat Transport: All basins"                         unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopstadv"      long_name="Advective Salt Transport: All basins"                         unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophtldf"      long_name="Diffusive Heat Transport: All basins"                         unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopstldf"      long_name="Diffusive Salt Transport: All basins"                         unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophtvtr"      long_name="Heat Transport : All basins"                                  unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopstvtr"      long_name="Salt Transport : All basins"                                  unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophteiv"      long_name="Heat Transport from mesoscale eddy advection: All basins"     unit="PW"         grid_ref="grid_znl_T_2D" />
    <field id="sopsteiv"      long_name="Salt Transport from mesoscale eddy advection : All basins"    unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sopstadv"      long_name="Advective Salt Transport"                                     unit="Giga g/s"   grid_ref="grid_znl_T_2D" />
    <field id="sophtgyre"     long_name="Overturning heat transport due to gyre" field_ref="sophtove"  unit="W"          grid_ref="grid_znl_T_2D" > sophtvtr - sophtove  </field>
    <field id="sopstgyre"     long_name="Overturning salt transport due to gyre" field_ref="sopstove"  unit="kg/s"       grid_ref="grid_znl_T_2D" > sophtvtr - sopstove  </field>
  </field_group>

  <field_group id="constant_fields"  grid_ref="grid_T_2D"  operation="once" >
    <field id="bathy"       long_name="Sea floor depth below geoid"               standard_name="sea_floor_depth_below_geoid"               unit="m"/>
    <field id="areacello"   long_name="Horizontal area of ocean grid cells"       standard_name="cell_area"                                 unit="m2" />
    <field id="hfgeou"      long_name="Upward geothermal heat flux at sea floor"  standard_name="upward_geothermal_heat_flux_at_sea_floor"  unit="W/m2"/>
    <field id="basins"      long_name="ocean tracer region masks"                 standard_name="ocean_tracer_region_masks"   unit="none" grid_ref="grid_basin"  />
  </field_group>


  <!--
      ============================================================================================================
      Physical ocean model trend diagnostics : temperature, KE, PE, momentum
      ============================================================================================================
  -->

  <!-- variables available with ln_tra_trd -->
  <!-- Asselin trends  calculated on odd time steps-->
  <field_group id="trendT_odd"  grid_ref="grid_T_3D">
    <field id="ttrd_atf"      long_name="temperature-trend: asselin time filter"       unit="degree_C/s" />
    <field id="strd_atf"      long_name="salinity   -trend: asselin time filter"       unit="0.001/s" />
    <!-- Thickness weighted versions: -->
    <field id="ttrd_atf_e3t"      unit="degC/s * m"  >  ttrd_atf * e3t </field>
    <field id="strd_atf_e3t"      unit="1e-3/s * m"  >  strd_atf * e3t </field>
    <!-- OMIP  layer-integrated trends -->
    <field id="ttrd_atf_li"      long_name="layer integrated heat-trend: asselin time filter "       unit="W/m^2" > ttrd_atf_e3t * 1026.0 * 3991.86795711963  </field>
    <field id="strd_atf_li"      long_name="layer integrated salt   -trend: asselin time filter "       unit="kg/(m^2 s)" > strd_atf_e3t * 1026.0 * 0.001 </field>
  </field_group>

  <!-- Other trends  calculated on even time steps-->
  <field_group id="trendT_even" grid_ref="grid_T_3D">
    <field id="ttrd_xad"      long_name="temperature-trend: i-advection"                                                                                          unit="degC/s"                        />
    <field id="strd_xad"      long_name="salinity   -trend: i-advection"                                                                                          unit="1e-3/s"                        />
    <field id="ttrd_yad"      long_name="temperature-trend: j-advection"                                                                                          unit="degC/s"                        />
    <field id="strd_yad"      long_name="salinity   -trend: j-advection"                                                                                          unit="1e-3/s"                        />
    <field id="ttrd_zad"      long_name="temperature-trend: k-advection"                                                                                          unit="degC/s"                        />
    <field id="strd_zad"      long_name="salinity   -trend: k-advection"                                                                                          unit="1e-3/s"                        />
    <field id="ttrd_ad"       long_name="temperature-trend: advection"               standard_name="tendency_of_sea_water_temperature_due_to_advection"           unit="degC/s"                         > sqrt( ttrd_xad^2 + ttrd_yad^2 + ttrd_zad^2 ) </field>
    <field id="strd_ad"       long_name="salinity   -trend: advection"               standard_name="tendency_of_sea_water_salinity_due_to_advection"              unit="1e-3/s"                         > sqrt( strd_xad^2 + strd_yad^2 + strd_zad^2 ) </field>
    <field id="ttrd_totad"    long_name="temperature-trend: total advection"         standard_name="tendency_of_sea_water_salinity_due_to_advection"              unit="degC/s"                        />
    <field id="strd_totad"    long_name="salinity   -trend: total advection"         standard_name="tendency_of_sea_water_salinity_due_to_advection"              unit="1e-3/s"                        />
    <field id="ttrd_sad"      long_name="temperature-trend: surface adv. (linssh true)"                                                                           unit="degC/s"   grid_ref="grid_T_2D" />
    <field id="strd_sad"      long_name="salinity   -trend: surface adv. (linssh true)"                                                                           unit="1e-3/s"   grid_ref="grid_T_2D" />
    <field id="ttrd_ldf"      long_name="temperature-trend: lateral  diffusion"      standard_name="tendency_of_sea_water_temperature_due_to_horizontal_mixing"   unit="degC/s"                        />
    <field id="strd_ldf"      long_name="salinity   -trend: lateral  diffusion"      standard_name="tendency_of_sea_water_salinity_due_to_horizontal_mixing"      unit="1e-3/s"                        />
    <field id="ttrd_zdf"      long_name="temperature-trend: vertical diffusion"      standard_name="tendency_of_sea_water_temperature_due_to_vertical_mixing"     unit="degC/s"                        />
    <field id="strd_zdf"      long_name="salinity   -trend: vertical diffusion"      standard_name="tendency_of_sea_water_salinity_due_to_vertical_mixing"        unit="1e-3/s"                        />
    <field id="ttrd_evd"      long_name="temperature-trend: EVD convection"                                                                                       unit="degC/s"                        />
    <field id="strd_evd"      long_name="salinity   -trend: EVD convection"                                                                                       unit="1e-3/s"                        />

    <!-- ln_traldf_iso=T only (iso-neutral diffusion) -->
    <field id="ttrd_iso"      long_name="temperature-trend: isopycnal diffusion"                             unit="degC/s" > ttrd_ldf + ttrd_zdf - ttrd_zdfp </field>
    <field id="strd_iso"      long_name="salinity   -trend: isopycnal diffusion"                             unit="1e-3/s" > strd_ldf + strd_zdf - strd_zdfp </field>
    <field id="ttrd_zdfp"     long_name="temperature-trend: pure vert. diffusion"   unit="degC/s" />
    <field id="strd_zdfp"     long_name="salinity   -trend: pure vert. diffusion"   unit="1e-3/s" />

    <!-- ln_zdfosm=T only (OSMOSIS-OBL) -->
    <field id="ttrd_osm"      long_name="temperature-trend: OSM-OSBL non-local forcing"                             unit="degC/s" />
    <field id="strd_osm"      long_name="salinity   -trend: OSM-OSBL non-local forcing"                             unit="1e-3/s" />


    <!-- -->
    <field id="ttrd_dmp"      long_name="temperature-trend: interior restoring"        unit="degC/s" />
    <field id="strd_dmp"      long_name="salinity   -trend: interior restoring"        unit="1e-3/s" />
    <field id="ttrd_bbl"      long_name="temperature-trend: bottom boundary layer"     unit="degC/s" />
    <field id="strd_bbl"      long_name="salinity   -trend: bottom boundary layer"     unit="1e-3/s" />
    <field id="ttrd_npc"      long_name="temperature-trend: non-penetrative conv."     unit="degC/s" />
    <field id="strd_npc"      long_name="salinity   -trend: non-penetrative conv."     unit="1e-3/s" />
    <field id="ttrd_qns"      long_name="temperature-trend: non-solar flux + runoff"   unit="degC/s" grid_ref="grid_T_2D" />
    <field id="strd_cdt"      long_name="salinity   -trend: C/D term       + runoff"   unit="degC/s" grid_ref="grid_T_2D" />
    <field id="ttrd_qsr"      long_name="temperature-trend: solar penetr. heating"     unit="degC/s" />
    <field id="ttrd_bbc"      long_name="temperature-trend: geothermal heating"        unit="degC/s" />

    <!-- Thickness weighted versions: -->
    <field id="ttrd_xad_e3t"      unit="degC/s * m" >  ttrd_xad * e3t </field>
    <field id="strd_xad_e3t"      unit="1e-3/s * m" >  strd_xad * e3t </field>
    <field id="ttrd_yad_e3t"      unit="degC/s * m" >  ttrd_yad * e3t </field>
    <field id="strd_yad_e3t"      unit="1e-3/s * m" >  strd_yad * e3t </field>
    <field id="ttrd_zad_e3t"      unit="degC/s * m" >  ttrd_zad * e3t </field>
    <field id="strd_zad_e3t"      unit="1e-3/s * m" >  strd_zad * e3t </field>
    <field id="ttrd_ad_e3t"       unit="degC/s * m" >  ttrd_ad  * e3t </field>
    <field id="strd_ad_e3t"       unit="1e-3/s * m" >  strd_ad  * e3t </field>
    <field id="ttrd_totad_e3t"    unit="degC/s * m" >  ttrd_totad  * e3t </field>
    <field id="strd_totad_e3t"    unit="1e-3/s * m" >  strd_totad  * e3t </field>
    <field id="ttrd_ldf_e3t"      unit="degC/s * m" >  ttrd_ldf * e3t </field>
    <field id="strd_ldf_e3t"      unit="1e-3/s * m" >  strd_ldf * e3t </field>
    <field id="ttrd_zdf_e3t"      unit="degC/s * m" >  ttrd_zdf * e3t </field>
    <field id="strd_zdf_e3t"      unit="1e-3/s * m" >  strd_zdf * e3t </field>
    <field id="ttrd_evd_e3t"      unit="degC/s * m" >  ttrd_evd * e3t </field>
    <field id="strd_evd_e3t"      unit="1e-3/s * m" >  strd_evd * e3t </field>

    <!-- ln_traldf_iso=T only (iso-neutral diffusion) -->
    <field id="ttrd_iso_e3t"      unit="degC/s * m"  >  ttrd_iso * e3t </field>
    <field id="strd_iso_e3t"      unit="1e-3/s * m"  >  strd_iso * e3t </field>
    <field id="ttrd_zdfp_e3t"     unit="degC/s * m"  >  ttrd_zdfp * e3t </field>
    <field id="strd_zdfp_e3t"     unit="1e-3/s * m"  >  strd_zdfp * e3t </field>

    <!-- ln_zdfosm=T only (OSMOSIS-OBL) -->
    <field id="ttrd_osm_e3t"      long_name="temperature-trend: OSM-OSBL non-local forcing"                             unit="degC/s * m" >  ttrd_osm * e3t </field>
    <field id="strd_osm_e3t"      long_name="salinity   -trend: OSM-OSBL non-local forcing"                             unit="1e-3/s * m" >  strd_osm * e3t </field>

    <!-- -->
    <field id="ttrd_dmp_e3t"      unit="degC/s * m"  >  ttrd_dmp * e3t </field>
    <field id="strd_dmp_e3t"      unit="1e-3/s * m"  >  strd_dmp * e3t </field>
    <field id="ttrd_bbl_e3t"      unit="degC/s * m"  >  ttrd_bbl * e3t </field>
    <field id="strd_bbl_e3t"      unit="1e-3/s * m"  >  strd_bbl * e3t </field>
    <field id="ttrd_npc_e3t"      unit="degC/s * m"  >  ttrd_npc * e3t </field>
    <field id="strd_npc_e3t"      unit="1e-3/s * m"  >  strd_npc * e3t </field>
    <field id="ttrd_qns_e3t"      unit="degC/s * m"  >  ttrd_qns * e3ts </field>
    <field id="strd_cdt_e3t"      unit="degC/s * m"  >  strd_cdt * e3ts </field>
    <field id="ttrd_qsr_e3t"      unit="degC/s * m"  >  ttrd_qsr * e3t </field>
    <field id="ttrd_bbc_e3t"      unit="degC/s * m"  >  ttrd_bbc * e3t </field>

    <!-- OMIP  layer-integrated trends -->
    <field id="ttrd_totad_li"    long_name="layer integrated heat-trend: total advection"         unit="W/m^2"     > ttrd_totad_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_totad_li"    long_name="layer integrated salt-trend: total advection"         unit="kg/(m^2 s)"    > strd_totad_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_osm_li"    long_name="layer integrated heat-trend: non-local OSM"         unit="W/m^2"     > ttrd_osm_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_osm_li"    long_name="layer integrated salt-trend: non-local OSM"         unit="kg/(m^2 s)"    > strd_osm_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_evd_li"      long_name="layer integrated heat-trend: EVD convection"          unit="W/m^2"    > ttrd_evd_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_evd_li"      long_name="layer integrated salt-trend: EVD convection"          unit="kg/(m^2 s)"  > strd_evd_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_iso_li"      long_name="layer integrated heat-trend: isopycnal diffusion"     unit="W/m^2" > ttrd_iso_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_iso_li"      long_name="layer integrated salt-trend: isopycnal diffusion"     unit="kg/(m^2 s)" > strd_iso_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_zdfp_li"     long_name="layer integrated heat-trend: pure vert. diffusion"    unit="W/m^2" > ttrd_zdfp_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_zdfp_li"     long_name="layer integrated salt-trend: pure vert. diffusion"    unit="kg/(m^2 s)" > strd_zdfp_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_qns_li"      long_name="layer integrated heat-trend: non-solar flux + runoff" unit="W/m^2" grid_ref="grid_T_2D"> ttrd_qns_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="ttrd_qsr_li"      long_name="layer integrated heat-trend: solar flux"              unit="W/m^2"  grid_ref="grid_T_3D"> ttrd_qsr_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="ttrd_bbl_li"      long_name="layer integrated heat-trend: bottom boundary layer "  unit="W/m^2" > ttrd_bbl_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_bbl_li"      long_name="layer integrated salt-trend: bottom boundary layer "  unit="kg/(m^2 s)" > strd_bbl_e3t * 1026.0 * 0.001  </field>
    <field id="ttrd_evd_li"      long_name="layer integrated heat-trend: evd convection "         unit="W/m^2" >ttrd_evd_e3t * 1026.0 * 3991.86795711963  </field>
    <field id="strd_evd_li"      long_name="layer integrated salt-trend: evd convection "         unit="kg/(m^2 s)" > strd_evd_e3t * 1026.0 * 0.001  </field>

  </field_group>

  <!--  Total trends calculated every time step-->
  <field_group id="trendT" grid_ref="grid_T_3D">
    <field id="ttrd_tot"      long_name="temperature-trend: total model trend"         unit="degC/s" />
    <field id="strd_tot"      long_name="salinity   -trend: total model trend"         unit="1e-3/s" />
    <!-- Thickness weighted versions: -->
    <field id="ttrd_tot_e3t"      unit="degC/s * m"  >  ttrd_tot * e3t </field>
    <field id="strd_tot_e3t"      unit="1e-3/s * m"  >  strd_tot * e3t </field>
    <!-- OMIP  layer-integrated total trends -->
    <field id="ttrd_tot_li"      long_name="layer integrated heat-trend: total model trend :"         unit="W/m^2" > ttrd_tot_e3t * 1026.0 * 3991.86795711963 </field>
    <field id="strd_tot_li"      long_name="layer integrated salt-trend: total model trend :"         unit="kg/(m^2 s)" > strd_tot_e3t * 1026.0 * 0.001  </field>

    <!-- **** these trends have not been apportioned to all/even/odd ts yet **** -->
    <!-- variables available with ln_KE_trd -->
    <field id="ketrd_hpg"     long_name="ke-trend: hydrostatic pressure gradient"          unit="W/s^3"                        />
    <field id="ketrd_spg"     long_name="ke-trend: surface     pressure gradient"          unit="W/s^3"                        />
    <field id="ketrd_spgexp"  long_name="ke-trend: surface pressure gradient (explicit)"   unit="W/s^3"                        />
    <field id="ketrd_spgflt"  long_name="ke-trend: surface pressure gradient (filter)"     unit="W/s^3"                        />
    <field id="ssh_flt"       long_name="filtered contribution to ssh (dynspg_flt)"        unit="m"       grid_ref="grid_T_2D" />
    <field id="w0"            long_name="surface vertical velocity"                        unit="m/s"     grid_ref="grid_T_2D" />
    <field id="pw0_exp"       long_name="surface pressure flux due to ssh"                 unit="W/s^2"   grid_ref="grid_T_2D" />
    <field id="pw0_flt"       long_name="surface pressure flux due to filtered ssh"        unit="W/s^2"   grid_ref="grid_T_2D" />
    <field id="ketrd_keg"     long_name="ke-trend: KE gradient         or hor. adv."       unit="W/s^3"                        />
    <field id="ketrd_rvo"     long_name="ke-trend: relative  vorticity or metric term"     unit="W/s^3"                        />
    <field id="ketrd_pvo"     long_name="ke-trend: planetary vorticity"                    unit="W/s^3"                        />
    <field id="ketrd_zad"     long_name="ke-trend: vertical  advection"                    unit="W/s^3"                        />
    <field id="ketrd_udx"     long_name="ke-trend: U.dx[U]"                                unit="W/s^3"                        />
    <field id="ketrd_ldf"     long_name="ke-trend: lateral   diffusion"                    unit="W/s^3"                        />
    <field id="ketrd_zdf"     long_name="ke-trend: vertical  diffusion"                    unit="W/s^3"                        />
    <field id="ketrd_tau"     long_name="ke-trend: wind stress "                           unit="W/s^3"   grid_ref="grid_T_2D" />
    <field id="ketrd_bfr"     long_name="ke-trend: bottom friction (explicit)"             unit="W/s^3"                        />
    <field id="ketrd_bfri"    long_name="ke-trend: bottom friction (implicit)"             unit="W/s^3"                        />
    <field id="ketrd_atf"     long_name="ke-trend: asselin time filter trend"              unit="W/s^3"                        />
    <field id="ketrd_convP2K" long_name="ke-trend: conversion (potential to kinetic)"      unit="W/s^3"                        />
    <field id="KE"            long_name="kinetic energy: u(n)*u(n+1)/2"                    unit="W/s^2"                        />

    <!-- variables available when explicit lateral mixing is used (ln_dynldf_OFF=F) -->
    <field id="dispkexyfo"    long_name="KE-trend: lateral  mixing induced dissipation"   standard_name="ocean_kinetic_energy_dissipation_per_unit_area_due_to_xy_friction"                   unit="W/m^2" grid_ref="grid_T_2D" />
    <field id="dispkevfo"     long_name="KE-trend: vertical mixing induced dissipation"   standard_name="ocean_kinetic_energy_dissipation_per_unit_area_due_to_vertical_friction"             unit="W/m^2" grid_ref="grid_T_2D" />
    <!-- variables available with ln_traadv_eiv=T and ln_diaeiv=T -->
    <field id="eketrd_eiv"    long_name="EKE-trend due to parameterized eddy advection"   standard_name="tendency_of_ocean_eddy_kinetic_energy_content_due_to_parameterized_eddy_advection"   unit="W/m^2" grid_ref="grid_T_2D" />

    <!-- variables available with ln_PE_trd -->
    <field id="petrd_xad"     long_name="pe-trend: i-advection"                unit="W/m^3"                        />
    <field id="petrd_yad"     long_name="pe-trend: j-advection"                unit="W/m^3"                        />
    <field id="petrd_zad"     long_name="pe-trend: k-advection"                unit="W/m^3"                        />
    <field id="petrd_sad"     long_name="pe-trend: surface adv. (linssh true)" unit="W/m^3"   grid_ref="grid_T_2D" />
    <field id="petrd_ldf"     long_name="pe-trend: lateral  diffusion"         unit="W/m^3"                        />
    <field id="petrd_zdf"     long_name="pe-trend: vertical diffusion"         unit="W/m^3"                        />
    <field id="petrd_zdfp"    long_name="pe-trend: pure vert. diffusion"       unit="W/m^3"                        />
    <field id="petrd_dmp"     long_name="pe-trend: interior restoring"         unit="W/m^3"                        />
    <field id="petrd_bbl"     long_name="pe-trend: bottom boundary layer"      unit="W/m^3"                        />
    <field id="petrd_npc"     long_name="pe-trend: non-penetrative conv."      unit="W/m^3"                        />
    <field id="petrd_nsr"     long_name="pe-trend: surface forcing + runoff"   unit="W/m^3"                        />
    <field id="petrd_qsr"     long_name="pe-trend: solar penetr. heating"      unit="W/m^3"                        />
    <field id="petrd_bbc"     long_name="pe-trend: geothermal heating"         unit="W/m^3"                        />
    <field id="petrd_atf"     long_name="pe-trend: asselin time filter"        unit="W/m^3"                        />
    <field id="PEanom"        long_name="potential energy anomaly"             unit="1"                            />
    <field id="alphaPE"       long_name="partial deriv. of PEanom wrt T"       unit="degC-1"                       />
    <field id="betaPE"        long_name="partial deriv. of PEanom wrt S"       unit="1e3"                          />
  </field_group>

  <field_group id="trendU" grid_ref="grid_U_3D">
    <!-- variables available with ln_dyn_trd -->
    <field id="utrd_hpg"       long_name="i-trend: hydrostatic pressure gradient"          unit="m/s^2"                        />
    <field id="utrd_spg"       long_name="i-trend: surface     pressure gradient"          unit="m/s^2"                        />
    <field id="utrd_spgexp"    long_name="i-trend: surface pressure gradient (explicit)"   unit="m/s^2"                        />
    <field id="utrd_spgflt"    long_name="i-trend: surface pressure gradient (filtered)"   unit="m/s^2"                        />
    <field id="utrd_keg"       long_name="i-trend: KE gradient         or hor. adv."       unit="m/s^2"                        />
    <field id="utrd_rvo"       long_name="i-trend: relative  vorticity or metric term"     unit="m/s^2"                        />
    <field id="utrd_pvo"       long_name="i-trend: planetary vorticity"                    unit="m/s^2"                        />
    <field id="utrd_zad"       long_name="i-trend: vertical  advection"                    unit="m/s^2"                        />
    <field id="utrd_udx"       long_name="i-trend: U.dx[U]"                                unit="m/s^2"                        />
    <field id="utrd_ldf"       long_name="i-trend: lateral   diffusion"                    unit="m/s^2"                        />
    <field id="utrd_zdf"       long_name="i-trend: vertical  diffusion"                    unit="m/s^2"                        />
    <field id="utrd_tau"       long_name="i-trend: wind stress "                           unit="m/s^2"   grid_ref="grid_U_2D" />
    <field id="utrd_bfr"       long_name="i-trend: bottom friction (explicit)"             unit="m/s^2"                        />
    <field id="utrd_bfri"      long_name="i-trend: bottom friction (implicit)"             unit="m/s^2"                        />
    <field id="utrd_tot"       long_name="i-trend: total momentum trend before atf"        unit="m/s^2"                        />
    <field id="utrd_atf"       long_name="i-trend: asselin time filter trend"              unit="m/s^2"                        />
  </field_group>

  <field_group id="trendV" grid_ref="grid_V_3D">
    <!-- variables available with ln_dyn_trd -->
    <field id="vtrd_hpg"       long_name="j-trend: hydrostatic pressure gradient"          unit="m/s^2"                        />
    <field id="vtrd_spg"       long_name="j-trend: surface     pressure gradient"          unit="m/s^2"                        />
    <field id="vtrd_spgexp"    long_name="j-trend: surface pressure gradient (explicit)"   unit="m/s^2"                        />
    <field id="vtrd_spgflt"    long_name="j-trend: surface pressure gradient (filtered)"   unit="m/s^2"                        />
    <field id="vtrd_keg"       long_name="j-trend: KE gradient         or hor. adv."       unit="m/s^2"                        />
    <field id="vtrd_rvo"       long_name="j-trend: relative  vorticity or metric term"     unit="m/s^2"                        />
    <field id="vtrd_pvo"       long_name="j-trend: planetary vorticity"                    unit="m/s^2"                        />
    <field id="vtrd_zad"       long_name="j-trend: vertical  advection"                    unit="m/s^2"                        />
    <field id="vtrd_vdy"       long_name="i-trend: V.dx[V]"                                unit="m/s^2"                        />
    <field id="vtrd_ldf"       long_name="j-trend: lateral   diffusion"                    unit="m/s^2"                        />
    <field id="vtrd_zdf"       long_name="j-trend: vertical  diffusion"                    unit="m/s^2"                        />
    <field id="vtrd_tau"       long_name="j-trend: wind stress "                           unit="m/s^2"   grid_ref="grid_V_2D" />
    <field id="vtrd_bfr"       long_name="j-trend: bottom friction (explicit)"             unit="m/s^2"                        />
    <field id="vtrd_bfri"      long_name="j-trend: bottom friction (implicit)"             unit="m/s^2"                        />
    <field id="vtrd_tot"       long_name="j-trend: total momentum trend before atf"        unit="m/s^2"                        />
    <field id="vtrd_atf"       long_name="j-trend: asselin time filter trend"              unit="m/s^2"                        />
  </field_group>

  <!-- shared variables available with TOP interface -->
  <field_group id="top_shared" grid_ref="grid_T_3D">
    <field id="xeps"           long_name="Broadband light attenuation"                     unit="-"                            />
    <field id="Heup"           long_name="Euphotic layer depth"                            unit="m"     grid_ref="grid_T_2D"   />
  </field_group>


  <!--
      ============================================================================================================
      Definitions for iodef_demo.xml
      ============================================================================================================
  -->

  <field_group id="TRD" >
    <field field_ref="ttrd_totad_li"   name="opottempadvect"  />
    <field field_ref="ttrd_iso_li"     name="opottemppmdiff"  />
    <field field_ref="ttrd_zdfp_li"    name="opottempdiff"  />
    <field field_ref="ttrd_evd_li"     name="opottempevd" />
    <field field_ref="strd_evd_li"     name="osaltevd" />
    <field field_ref="ttrd_qns_li"     name="opottempqns"  />
    <field field_ref="ttrd_qsr_li"     name="rsdoabsorb" operation="accumulate" />
    <field field_ref="strd_totad_li"   name="osaltadvect" />
    <field field_ref="strd_iso_li"     name="osaltpmdiff"  />
    <field field_ref="strd_zdfp_li"    name="osaltdiff" />
  </field_group>

  <field_group id="mooring" >
    <field field_ref="toce"         name="thetao"   long_name="sea_water_potential_temperature"      />
    <field field_ref="soce"         name="so"       long_name="sea_water_salinity"                   />
    <field field_ref="uoce"         name="uo"       long_name="sea_water_x_velocity"                 />
    <field field_ref="voce"         name="vo"       long_name="sea_water_y_velocity"                 />
    <field field_ref="woce"         name="wo"       long_name="sea_water_z_velocity"                 />
    <field field_ref="avt"          name="difvho"   long_name="ocean_vertical_heat_diffusivity"      />
    <field field_ref="avm"          name="difvmo"   long_name="ocean_vertical_momentum_diffusivity"  />

    <field field_ref="sst"          name="tos"      long_name="sea_surface_temperature"                       />
    <field field_ref="sst2"         name="tossq"    long_name="square_of_sea_surface_temperature"             />
    <field field_ref="sstgrad"      name="tosgrad"  long_name="module_of_sea_surface_temperature_gradient"    />
    <field field_ref="sss"          name="sos"      long_name="sea_surface_salinity"                          />
    <field field_ref="ssh"          name="zos"      long_name="sea_surface_height_above_geoid"                />
    <field field_ref="empmr"        name="wfo"      long_name="water_flux_into_sea_water"                     />
    <field field_ref="qsr"          name="rsntds"   long_name="surface_net_downward_shortwave_flux"           />
    <field field_ref="qt"           name="tohfls"   long_name="surface_net_downward_total_heat_flux"          />
    <field field_ref="taum"                                                                                   />
    <field field_ref="20d"                                                                                    />
    <field field_ref="mldkz5"                                                                                 />
    <field field_ref="mldr10_1"                                                                               />
    <field field_ref="mldr10_3"                                                                               />
    <field field_ref="mldr0_1"                                                                                />
    <field field_ref="mldr0_3"                                                                                />
    <field field_ref="mld_dt02"                                                                               />
    <field field_ref="topthdep"                                                                               />
    <field field_ref="pycndep"                                                                                />
    <field field_ref="tinv"                                                                                   />
    <field field_ref="depti"                                                                                  />
    <field field_ref="BLT"          name="blt"      long_name="barrier_layer_thickness"                       />
    <field field_ref="utau"         name="tauuo"    long_name="surface_downward_x_stress"                     />
    <field field_ref="vtau"         name="tauvo"    long_name="surface_downward_y_stress"                     />
  </field_group>

  <field_group id="groupT" >
    <field field_ref="toce"         name="thetao"   long_name="sea_water_potential_temperature"               />
    <field field_ref="soce"         name="so"       long_name="sea_water_salinity"                            />
    <field field_ref="sst"          name="tos"      long_name="sea_surface_temperature"                       />
    <field field_ref="sst2"         name="tossq"    long_name="square_of_sea_surface_temperature"             />
    <field field_ref="sss"          name="sos"      long_name="sea_surface_salinity"                          />
    <field field_ref="ssh"          name="zos"      long_name="sea_surface_height_above_geoid"                />
    <field field_ref="empmr"        name="wfo"      long_name="water_flux_into_sea_water"                     />
    <field field_ref="qsr"          name="rsntds"   long_name="surface_net_downward_shortwave_flux"           />
    <field field_ref="qt"           name="tohfls"   long_name="surface_net_downward_total_heat_flux"          />
    <field field_ref="taum"                                                                                   />
    <field field_ref="20d"                                                                                    />
    <field field_ref="mldkz5"                                                                                 />
    <field field_ref="mldr10_1"                                                                               />
    <field field_ref="mldr10_3"                                                                               />
    <field field_ref="mld_dt02"                                                                               />
    <field field_ref="topthdep"                                                                               />
    <field field_ref="pycndep"                                                                                />
    <field field_ref="tinv"                                                                                   />
    <field field_ref="depti"                                                                                  />
    <field field_ref="BLT"          name="blt"      long_name="Barrier Layer Thickness"                       />
  </field_group>

  <field_group id="groupU" >
    <field field_ref="uoce"         name="uo"      long_name="sea_water_x_velocity"      />
    <field field_ref="utau"         name="tauuo"   long_name="surface_downward_x_stress" />
  </field_group>

  <field_group id="groupV" >
    <field field_ref="voce"         name="vo"      long_name="sea_water_y_velocity"      />
    <field field_ref="vtau"         name="tauvo"   long_name="surface_downward_y_stress" />
  </field_group>

  <field_group id="groupW" >
    <field field_ref="woce"         name="wo"       long_name="ocean vertical velocity"  />
  </field_group>

  <!-- TMB diagnostic output -->
  <field_group  id="1h_grid_T_tmb" grid_ref="grid_T_2D" operation="instant">
    <field id="top_temp"           name="votemper_top"  unit="degC"  />
    <field id="mid_temp"           name="votemper_mid"  unit="degC"  />
    <field id="bot_temp"           name="votemper_bot"  unit="degC"  />
    <field id="top_sal"            name="vosaline_top"  unit="psu"   />
    <field id="mid_sal"            name="vosaline_mid"  unit="psu"   />
    <field id="bot_sal"            name="vosaline_bot"  unit="psu"   />
    <field id="sshnmasked"         name="sossheig"      unit="m"     />
  </field_group>

  <field_group  id="1h_grid_U_tmb" grid_ref="grid_U_2D" operation="instant">
    <field id="top_u"           name="vozocrtx_top"  unit="m/s"  />
    <field id="mid_u"           name="vozocrtx_mid"  unit="m/s"  />
    <field id="bot_u"           name="vozocrtx_bot"  unit="m/s"  />
    <field id="baro_u"          name="vobtcrtx"      unit="m/s"  />
  </field_group>

  <field_group  id="1h_grid_V_tmb" grid_ref="grid_V_2D" operation="instant">
    <field id="top_v"           name="vomecrty_top"  unit="m/s"  />
    <field id="mid_v"           name="vomecrty_mid"  unit="m/s"  />
    <field id="bot_v"           name="vomecrty_bot"  unit="m/s"  />
    <field id="baro_v"          name="vobtcrty"      unit="m/s"  />
  </field_group>

  <!-- 25h diagnostic output -->
  <field_group id="25h_grid_T" grid_ref="grid_T_3D_inner" operation="instant">
    <field id="temper25h"         name="potential temperature 25h mean"    unit="degC" />
    <field id="tempis25h"         name="insitu temperature 25h mean"    unit="degC" />
    <field id="salin25h"          name="salinity 25h mean"                 unit="psu"  />
    <field id="ssh25h"            name="sea surface height 25h mean"  grid_ref="grid_T_2D_inner"      unit="m"    />
  </field_group>

  <field_group id="25h_grid_U" grid_ref="grid_U_3D_inner" operation="instant" >
    <field id="vozocrtx25h"         name="i current 25h mean"    unit="m/s"   />
  </field_group>

  <field_group id="25h_grid_V" grid_ref="grid_V_3D_inner" operation="instant">
    <field id="vomecrty25h"         name="j current 25h mean"    unit="m/s"    />
  </field_group>

  <field_group id="25h_grid_W" grid_ref="grid_W_3D_inner" operation="instant">
    <field id="vovecrtz25h"         name="k current 25h mean"                 unit="m/s"      />
    <field id="avt25h"              name="vertical diffusivity25h mean"       unit="m2/s" />
    <field id="avm25h"              name="vertical viscosity 25h mean"        unit="m2/s" />
    <field id="tke25h"              name="turbulent kinetic energy 25h mean" />
    <field id="mxln25h"             name="mixing length 25h mean"             unit="m" />
  </field_group>

  <!--
      ============================================================================================================
  -->
  <!-- output variables for my configuration (example) -->

  <field_group id="myvarOCE" >
    <!-- grid T -->
    <field field_ref="e3t"          name="e3t"      long_name="vertical scale factor"           />
    <field field_ref="sst"          name="tos"      long_name="sea_surface_temperature"         />
    <field field_ref="sss"          name="sos"      long_name="sea_surface_salinity"            />
    <field field_ref="ssh"          name="zos"      long_name="sea_surface_height_above_geoid"  />

    <!-- grid U -->
    <field field_ref="e3u"          name="e3u"     long_name="vertical scale factor"            />
    <field field_ref="ssu"          name="uos"     long_name="sea_surface_x_velocity"           />

    <!-- grid V -->
    <field field_ref="e3v"          name="e3v"     long_name="vertical scale factor"            />
    <field field_ref="ssv"          name="vos"     long_name="sea_surface_y_velocity"           />
  </field_group>

  <!--============================-->
  <!--  CONSERVATION diagnostics  -->
  <!--============================-->
  <!-- BE CAREFUL: this group (OCE_budget) cannot be called in file_def.xml as such (unless nn_fsbc=1)
                   If doing so, the last output (in time) of the netcdf file 
		   would be corrupted (NaN values). However calling each of these
		   variables directly in the file_def.xml works. It is probably 
		   because there is a mix up of sbc variables with other variables
    -->
  <field_group id="OCE_budget"        grid_ref="grid_T_2D" >
    <field field_ref="sst"                 name="tos"          />
    <field field_ref="sss"                 name="sos"          />
    <field field_ref="ssh"                 name="zos"          />
    <!-- mass flux -->
    <field field_ref="empmr"               name="empmr"        />
    <field field_ref="runoffs"             name="runoffs"      />
    <field field_ref="emp_ice"             name="emp_ice"      />
    <field field_ref="emp_oce"             name="emp_oce"      />
    <field field_ref="iceshelf_cea"        name="iceshelf"     />
    <field field_ref="iceberg_cea"         name="iceberg"      />
    <field field_ref="calving_cea"         name="calving"      />
    <!-- <field field_ref="berg_floating_melt"  name="calving" /> -->
    <field field_ref="precip"              name="precip"       />
    <field field_ref="snowpre"             name="snowpre"      />
    <field field_ref="rain"                name="rain"         />
    <field field_ref="evap_ao_cea"         name="evap_ao"      />
    <field field_ref="subl_ai_cea"         name="subl_ai"      />
    <field field_ref="snow_ai_cea"         name="snow_ai"      />
    <field field_ref="snow_ao_cea"         name="snow_ao"      />
    <!-- heat flux -->
    <field field_ref="qsr"                 name="qsr"          />
    <field field_ref="qns"                 name="qns"          />
    <field field_ref="qt_oce"              name="qt_oce"       />
    <field field_ref="qemp_oce"            name="qemp_oce"     />
    <field field_ref="hflx_rain_cea"       name="hflx_rain"    />
    <field field_ref="hflx_evap_cea"       name="hflx_evap"    />
    <field field_ref="hflx_snow_cea"       name="hflx_snow"    />
    <field field_ref="hflx_snow_ao_cea"    name="hflx_snow_ao" />
    <field field_ref="hflx_snow_ai_cea"    name="hflx_snow_ai" />
    <field field_ref="hflx_rnf_cea"        name="hflx_rnf"     />
    <field field_ref="hflx_icb_cea"        name="hflx_icb"     />
    <field field_ref="hflx_isf_cea"        name="hflx_isf"     />
    <!-- salt flux (includes ssr) -->
    <field field_ref="saltflx"             name="saltflx"      />
    <field field_ref="sflx_rnf_cea"        name="sflx_rnf"     />
    <!-- relaxation and damping -->
    <field field_ref="hflx_ssr_cea"        name="hflx_ssr"     />
    <field field_ref="vflx_ssr_cea"        name="vflx_ssr"     />
    <field field_ref="sflx_ssr_cea"        name="sflx_ssr"     />
    <field field_ref="hflx_dmp_cea"        name="hflx_dmp"     />
    <field field_ref="sflx_dmp_cea"        name="sflx_dmp"     />
    <field field_ref="hflx_fwb_cea"        name="hflx_fwb"     />
    <field field_ref="vflx_fwb_cea"        name="vflx_fwb"     />
  </field_group>

  <field_group id="OCE_globalbudget"  grid_ref="grid_scalar" >
    <field field_ref="voltot"              name="scvoltot"     />
    <field field_ref="saltot"              name="scsaltot"     />
    <field field_ref="temptot"             name="sctemtot"     />
  </field_group>

  
</field_definition>
