ecearth3/runtime/classic/ctrl/field_def_nemo-lim.xml

<?xml version="1.0"?> 
    <!-- $id$ -->
    
    <!-- 
============================================================================================================
=                                  definition of all existing variables                                    =
=                                            DO NOT CHANGE                                                 =
============================================================================================================
    -->
   <field_definition level="1" prec="4" operation="average" enabled=".TRUE." default_value="1.e20" detect_missing_value="true"> <!-- time step automaticaly defined -->

      <field_group id="SBC" grid_ref="grid_T_2D" > <!-- time step automaticaly defined based on nn_fsbc -->

         <!-- LIM2(only) fields -->
         <field id="qsr_ai_cea"   long_name="Air-Ice downward solar heat flux (cell average)"              standard_name="surface_downwelling_shortwave_flux_in_air"          unit="W/m2"         />
         <field id="qns_ai_cea"   long_name="Air-Ice downward non-solar heat flux (cell average)"                                                                             unit="W/m2"         />
         <field id="qla_ai_cea"   long_name="Air-Ice downward Latent heat flux (cell average)"             standard_name="surface_downward_latent_heat_flux"                  unit="W/m2"         />         
         <field id="qsr_io_cea"   long_name="Ice-Oce downward solar heat flux (cell average)"              standard_name="net_downward_shortwave_flux_at_sea_water_surface"   unit="W/m2"         />
         <field id="qns_io_cea"   long_name="Ice-Oce downward non-solar heat flux (cell average)"                                                                             unit="W/m2"         />
         <field id="iceprod_cea"  long_name="Ice production (cell average)"                                                                                                   unit="m/s"          />
         <field id="iiceconc"     long_name="Ice concentration"                                            standard_name="sea_ice_area_fraction"                              unit="1"            />
         <field id="ice_pres"     long_name="Ice presence"                                                                                                                    unit=""             />
         <field id="ist_cea"      long_name="Ice surface temperature (cell average)"                       standard_name="surface_temperature"                                unit="degC"         />
         <field id="ist_ipa"      long_name="Ice surface temperature (ice presence average)"               standard_name="surface_temperature"                                unit="degC"         />
         <field id="u_imasstr"    long_name="Sea-ice mass transport along i-axis"                          standard_name="sea_ice_x_transport"                                unit="kg/s" grid_ref="grid_U_2D"         />
         <field id="v_imasstr"    long_name="Sea-ice mass transport along j-axis"                          standard_name="sea_ice_y_transport"                                unit="kg/s" grid_ref="grid_V_2D"        />

         <!-- SIMIP LIM fields -->
         <field id="icethic"      long_name="Sea-ice thickness"                                    standard_name="sea_ice_thickness"                          unit="m"   detect_missing_value="true" />
         <field id="uice_mv"      long_name="X-component of sea ice velocity"                      standard_name="sea_ice_x_velocity"                         unit="m/s" detect_missing_value="true" grid_ref="grid_U_2D" /> 
         <field id="vice_mv"      long_name="Y-component of sea ice velocity"                      standard_name="sea_ice_y_velocity"                         unit="m/s" detect_missing_value="true" grid_ref="grid_V_2D" />      
         <field id="uice_mvT"      long_name="X-component of sea ice velocity"                      standard_name="sea_ice_x_velocity"                         unit="m/s" detect_missing_value="true" grid_ref="grid_T_2D" > uice_mv </field>
         <field id="icevel_mv"    long_name="Sea-ice speed"                                        standard_name="sea_ice_speed"                              unit="m/s" detect_missing_value="true" />
         <field id="icepres"      long_name="Fraction of time steps with sea ice"                  standard_name="sea_ice_time_fraction"                      unit=""             />
         <field id="iceconc"      long_name="Sea-ice area fraction"                                standard_name="sea_ice_area_fraction"                      unit=""             />
         <field id="iceconc_pct"  long_name="Sea-ice area fraction in percent"                     standard_name="sea_ice_area_fraction_in_percent"           unit="%"   > iceconc * 100. </field>
         <field id="icemass"      long_name="Sea-ice mass per area"                                standard_name="sea_ice_amount"                             unit="kg/m2"        />
         <!-- <field id="icevolu"      long_name="Sea-ice volume per area"                              standard_name="sea_ice_thickness"                          unit="m"            /> -->
         <field id="snomass"      long_name="Snow mass per area"                                   standard_name="liquid_water_content_of_surface_snow"       unit="kg/m2"    detect_missing_value="true"    />
         <field id="snothic"      long_name="Snow thickness"                                       standard_name="surface_snow_thickness"                     unit="m"           detect_missing_value="true"  />

         <field id="iceconc_cat_mv"     long_name="Sea-ice area fractions in thickness categories" standard_name="sea_ice_area_fraction_over_categories"      unit=""   grid_ref="grid_T_3D_ncatice" />
         <field id="iceconc_cat_pct_mv" long_name="Sea-ice area fractions in thickness categories" standard_name="sea_ice_area_fraction_over_categories"      unit="%"  detect_missing_value="true" grid_ref="grid_T_3D_ncatice"  > iceconc_cat_mv * 100. </field>
         <field id="icethic_cat_mv"     long_name="Sea-ice thickness in thickness categories"      standard_name="sea_ice_thickness_over_categories"          unit="m"  detect_missing_value="true" grid_ref="grid_T_3D_ncatice" />
         <field id="snowthic_cat_mv"    long_name="Snow thickness in thickness categories"         standard_name="snow_thickness_over_categories"             unit="m"  detect_missing_value="true" grid_ref="grid_T_3D_ncatice" />

         <field id="icestK"       long_name="Surface temperature of sea ice"                       standard_name="sea_ice_surface_temperature"                unit="K"     detect_missing_value="true"       /> 
         <field id="icesntK"      long_name="Temperature at snow-ice interface"                    standard_name="sea_ice_snow_interface_temperature"         unit="K"     detect_missing_value="true"        />
         <field id="icebotK"      long_name="Temperature at ice-ocean interface"                   standard_name="sea_ice_bottom_temperature"                 unit="K"     detect_missing_value="true"       />

         <field id="iceage"       long_name="Age of sea ice"                                       standard_name="age_of_sea_ice"                             unit="s"     detect_missing_value="true"       />
         <field id="icealb"       long_name="Sea-ice or snow albedo"                               standard_name="sea_ice_albedo"                             unit=""             />
         <field id="icesmass"     long_name="Mass of salt in sea ice per area"                     standard_name="sea_ice_salt_mass"                          unit="kg/m2"        />
         <field id="icesal"       long_name="Sea ice salinity"                                     standard_name="sea_ice_salinity"                           unit="g/kg"  detect_missing_value="true"       />
         <field id="icefb"        long_name="Sea-ice freeboard"                                    standard_name="sea_ice_freeboard"                          unit="m"     detect_missing_value="true"       />

         <field id="icehcneg"     long_name="Sea-ice heat content per unit area"  standard_name="integral_of_sea_ice_temperature_wrt_depth_expressed_as_heat_content" unit="J/m2" > (-1.0)*icehc </field>
         <field id="isnhcneg"     long_name="Snow-heat content per unit area"     standard_name="thermal_energy_content_of_surface_snow"                              unit="J/m2" detect_missing_value="true" /> 

         <field id="wfxsum"       long_name="Freshwater flux from sea-ice surface"               standard_name="freshwater_flux_from_ice_surface"                   unit="kg/m2/s"  detect_missing_value="true"    />

         <field id="afxthd"       long_name="sea-ice area fraction change from thermodynamics"   standard_name="tendency_of_sea_ice_area_fraction_due_to_dynamics"  unit="s-1"   />
         <field id="afxdyn"       long_name="sea-ice area fraction change from dynamics"         standard_name="tendency_of_sea_ice_area_fraction_due_to_dynamics"  unit="s-1"   />

         <field id="dmithd"       long_name="sea-ice mass change from thermodynamics"            standard_name="tendency_of_sea_ice_amount_due_to_thermodynamics"   unit="kg/m2/s" />
         <field id="dmidyn"       long_name="sea-ice mass change from dynamics"                  standard_name="tendency_of_sea_ice_amount_due_to_dynamics"         unit="kg/m2/s" />
         <field id="dmiopw"       long_name="sea-ice mass change through growth in supercooled open water (aka frazil)"   standard_name="tendency_of_sea_ice_amount_due_to_freezing_in_open_water"   unit="kg/m2/s" />
         <field id="dmibog"       long_name="sea-ice mass change through basal growth"           standard_name="tendency_of_sea_ice_amount_due_to_congelation_ice_accumulation"  unit="kg/m2/s" />
         <field id="dmisni"       long_name="sea-ice mass change through snow-to-ice conversion" standard_name="tendency_of_sea_ice_amount_due_to_snow_conversion"               unit="kg/m2/s" />
         <field id="dmtsub"       long_name="snow and sea ice mass change through sublimation"   standard_name="tendency_of_snow_and_ice_amount_due_to_sublimation"              unit="kg/m2/s" />
         <field id="dmssub"       long_name="sea-ice mass change through evaporation and sublimation" standard_name="water_evaporation_flux"                                     unit="kg/m2/s" />
         <field id="dmisub"       long_name="snow mass change through evaporation or sublimation"     standard_name="surface_snow_sublimation_flux"           unit="kg/m2/s" />
         <field id="dmisum"       long_name="sea-ice mass change through surface melting"        standard_name="tendency_of_sea_ice_amount_due_to_surface_melting"               unit="kg/m2/s" />
         <field id="dmibom"       long_name="sea-ice mass change through bottom melting"         standard_name="tendency_of_sea_ice_amount_due_to_basal_melting"                 unit="kg/m2/s" />

         <field id="dmsspr"       long_name="snow mass change through snow fall"                 standard_name="snowfall_flux"                                                   unit="kg/m2/s" />
         <field id="dmsmel"       long_name="snow mass change through melt"                      standard_name="surface_snow_melt_flux"                                          unit="kg/m2/s" />
         <field id="dmsdyn"       long_name="snow mass change through advection by sea-ice dynamics" standard_name="tendency_of_snow_mass_due_to_sea_ice_dynamics"               unit="kg/m2/s" />
         <field id="dmsssi"       long_name="snow mass change through snow-to-ice conversion"    standard_name="tendency_of_snow_mass_due_to_snow_to_ice_conversion"             unit="kg/m2/s" />

         <field id="hfxsenso"     long_name="Net sensible heat flux under sea ice"               standard_name="ice_ocean_heat_flux"                          unit="W/m2" detect_missing_value="true" />
         <field id="hfxconsu"     long_name="Net conductive heat flux in ice at the surface"     standard_name="conductive_heat_flux_at_sea_ice_surface"      unit="W/m2" detect_missing_value="true" /> 
         <field id="hfxconbo"     long_name="Net conductive heat fluxes in ice at the bottom"    standard_name="conductive_heat_flux_at_sea_ice_bottom"       unit="W/m2" detect_missing_value="true" />

         <field id="sfx_mv"       long_name="Salt flux from sea ice"                             standard_name="salt_flux_from_ice"                           unit="kg/m2/s" detect_missing_value="true" />
         <field id="wfxtot"       long_name="Freshwater flux from sea ice"                       standard_name="freshwater_flux_from_ice"                     unit="kg/m2/s" detect_missing_value="true" /> 

         <field id="utau_ice"     long_name="X-component of atmospheric stress on sea ice"       standard_name="surface_downward_x_stress"                    unit="N/m2"  detect_missing_value="true"  />
         <field id="vtau_ice"     long_name="Y-component of atmospheric stress on sea ice"       standard_name="surface_downward_y_stress"                    unit="N/m2"  detect_missing_value="true"  />

         <field id="utau_oi"      long_name="X-component of ocean stress on sea ice"             standard_name="sea_ice_base_upward_x_stress"                 unit="N/m2"  detect_missing_value="true"  />
         <field id="vtau_oi"      long_name="Y-component of ocean stress on sea ice"             standard_name="sea_ice_base_upward_y_stress"                 unit="N/m2"  detect_missing_value="true"  />

         <field id="icestr"       long_name="Compressive sea ice strength"                       standard_name="compressive_strength_of_sea_ice"              unit="N/m"  detect_missing_value="true"   />

         <field id="dssh_dx"      long_name="Sea-surface tilt term in force balance (x-component)"  standard_name="sea_surface_tilt_force_on_sea_ice_x"       unit="N/m2" detect_missing_value="true"   />
         <field id="dssh_dy"      long_name="Sea-surface tilt term in force balance (y-component)"  standard_name="sea_surface_tilt_force_on_sea_ice_y"       unit="N/m2" detect_missing_value="true"   />

         <field id="corstrx"      long_name="Coriolis force term in force balance (x-component)"    standard_name="coriolis_force_on_sea_ice_x"               unit="N/m2" detect_missing_value="true"   />
         <field id="corstry"      long_name="Coriolis force term in force balance (y-component)"    standard_name="coriolis_force_on_sea_ice_y"               unit="N/m2" detect_missing_value="true"   />

         <field id="intstrx"      long_name="Internal stress term in force balance (x-component)"   standard_name="internal_stress_in_sea_ice_x"              unit="N/m2" detect_missing_value="true"   />
         <field id="intstry"      long_name="Internal stress term in force balance (y-component)"   standard_name="internal_stress_in_sea_ice_y"              unit="N/m2" detect_missing_value="true"   />

         <field id="xmtrpice"     long_name="X-component of ice mass transport"                  standard_name="ice_x_transport"                              unit="kg/s" />
         <field id="ymtrpice"     long_name="Y-component of ice mass transport"                  standard_name="ice_y_transport"                              unit="kg/s" />

         <field id="xmtrpsnw"     long_name="X-component of snw mass transport"                  standard_name="snw_x_transport"                              unit="kg/s" />
         <field id="ymtrpsnw"     long_name="Y-component of snw mass transport"                  standard_name="snw_y_transport"                              unit="kg/s" />

         <field id="xatrp"        long_name="X-component of ice area transport"                  standard_name="area_x_transport"                             unit="m2/s" />
         <field id="yatrp"        long_name="Y-component of ice area transport"                  standard_name="area_y_transport"                             unit="m2/s" />

         <field id="xmtrptot"     long_name="X-component of sea-ice mass transport"              standard_name="sea_ice_x_transport"                          unit="kg/s" > xmtrpice + xmtrpsnw </field>
         <field id="ymtrptot"     long_name="Y-component of sea-ice mass transport"              standard_name="sea_ice_y_transport"                          unit="kg/s" > ymtrpice + ymtrpsnw </field>

         <field id="normstr"      long_name="Average normal stress in sea ice"                   standard_name="average_normal_stress"                        unit="N/m"  detect_missing_value="true"   />
         <field id="sheastr"      long_name="Maximum shear stress in sea ice"                    standard_name="maximum_shear_stress"                         unit="N/m"     />

         <field id="idive"        long_name="Divergence of the sea-ice velocity field"           standard_name="divergence_of_sea_ice_velocity"               unit="s-1"  detect_missing_value="true"   />
         <field id="ishear"       long_name="Maximum shear of sea-ice velocity field"            standard_name="maximum_shear_of_sea_ice_velocity"            unit="s-1"  detect_missing_value="true"   />

         <!-- ice LIM fields -->

         <field id="ice_cover"    long_name="Ice fraction"                                                 standard_name="sea_ice_area_fraction"                              unit="1"            />        

         <field id="uice_ipa"     long_name="X-component of sea ice velocity"                              standard_name="sea_ice_x_velocity"                                 unit="m/s"          grid_ref="grid_U_2D"/> 
         <field id="vice_ipa"     long_name="Y-component of sea ice velocity"                              standard_name="sea_ice_y_velocity"                                 unit="m/s"          grid_ref="grid_V_2D"/>      
         <field id="icevel"       long_name="Sea-ice speed"                                                standard_name="sea_ice_speed"                                      unit="m/s"          />
       	 <field id="isst"         long_name="sea surface temperature"                                      standard_name="sea_surface_temperature"                            unit="degC"         />
         <field id="isss"         long_name="sea surface salinity"                                         standard_name="sea_surface_salinity"                               unit="1e-3"         /> 
         <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"                                                                                            unit="W/m2"         />
         <field id="qns_mix"      long_name="non-solar heat flux received from OASIS"                                                                                         unit="W/m2"         />
         <field id="qt_ice"       long_name="total heat flux at ice surface: sum over categories"          standard_name="surface_downward_heat_flux_in_air"                  unit="W/m2"         />
         <field id="qsr_ice"      long_name="solar heat flux at ice surface: sum over categories"          standard_name="surface_downwelling_shortwave_flux_in_air"          unit="W/m2"         />
         <field id="qns_ice"      long_name="non-solar heat flux at ice surface: sum over categories"                                                                         unit="W/m2"         />
         <field id="qtr_ice"      long_name="solar heat flux transmitted through ice: sum over categories"                                                                    unit="W/m2"         />
         <field id="qemp_ice"     long_name="Downward Heat Flux from E-P over ice"                                                                                            unit="W/m2"         />
         <field id="albedo"       long_name="Mean albedo over sea ice and ocean"                                                                                              unit=""             />

         <field id="iceconc_cat"  long_name="Sea-ice area fractions in thickness categories"               unit=""   grid_ref="grid_T_3D_ncatice" />
         <field id="icethic_cat"  long_name="Sea-ice thickness in thickness categories"                    unit="m"  grid_ref="grid_T_3D_ncatice" />
         <field id="snowthic_cat" long_name="Snow thickness in thickness categories"                       unit="m"  grid_ref="grid_T_3D_ncatice" />
         <field id="iceage_cat"   long_name="Ice age for categories"                                       unit="days"   grid_ref="grid_T_3D_ncatice" />
         <field id="salinity_cat" long_name="Sea-Ice Bulk salinity for categories"                         unit="g/kg"   grid_ref="grid_T_3D_ncatice" />
         <field id="brinevol_cat" long_name="Brine volume for categories"                                  unit="%"      grid_ref="grid_T_3D_ncatice" />
         <field id="icetemp_cat"  long_name="Ice temperature for categories"                               unit="degC"   grid_ref="grid_T_3D_ncatice" />
         <field id="snwtemp_cat"  long_name="Snow temperature for categories"                              unit="degC"   grid_ref="grid_T_3D_ncatice" />

         <field id="micet"        long_name="Mean ice temperature"                                         unit="degC"     />
         <field id="miceage"      long_name="Age of sea ice"                                               unit="s"        />
         <field id="micesalt"     long_name="Sea ice salinity"                                             unit="g/kg"     />
         <field id="icehc"        long_name="ice total heat content"                                       unit="J/m2"     /> 
         <field id="isnowhc"      long_name="snow total heat content"                                      unit="J/m2"     />
         <field id="icest"        long_name="ice surface temperature"                                      unit="degC"     />
         <field id="ibrinv"       long_name="brine volume"                                                 unit="%"        />
         <field id="icecolf"      long_name="frazil ice collection thickness"                              unit="m"        />
         <field id="snowvol"      long_name="snow volume"                                                  unit="m"        />

         <field id="icetrp"       long_name="ice volume transport"                                         unit="m/day"          />
         <field id="snwtrp"       long_name="snw volume transport"                                         unit="m/day"          />
         <field id="saltrp"       long_name="salt content transport"                                       unit="1e-3*kg/m2/day" />
         <field id="deitrp"       long_name="advected ice enthalpy"                                        unit="W/m2"           />
         <field id="destrp"       long_name="advected snw enthalpy"                                        unit="W/m2"           />

         <field id="sfxbri"       long_name="brine salt flux"                                              unit="1e-3*kg/m2/day" />
         <field id="sfxdyn"       long_name="salt flux from ridging rafting"                               unit="1e-3*kg/m2/day" />
         <field id="sfxres"       long_name="salt flux from lipupdate (resultant)"                         unit="1e-3*kg/m2/day" />
         <field id="sfxbog"       long_name="salt flux from bot growth"                                    unit="1e-3*kg/m2/day" />
         <field id="sfxbom"       long_name="salt flux from bot melt"                                      unit="1e-3*kg/m2/day" />
         <field id="sfxsum"       long_name="salt flux from surf melt"                                     unit="1e-3*kg/m2/day" />
         <field id="sfxsni"       long_name="salt flux from snow-ice formation"                            unit="1e-3*kg/m2/day" />
         <field id="sfxopw"       long_name="salt flux from open water ice formation"                      unit="1e-3*kg/m2/day" />
         <field id="sfxsub"       long_name="salt flux from sublimation"                                   unit="1e-3*kg/m2/day" />
         <field id="sfx"          long_name="Salt flux from sea ice"                                       unit="1e-3*kg/m2/day" />

         <field id="vfxbog"       long_name="daily bottom thermo ice prod."                                unit="m/day"   />
         <field id="vfxdyn"       long_name="daily  dynamic ice prod."                                     unit="m/day"   />
         <field id="vfxopw"       long_name="daily lateral thermo ice prod."                               unit="m/day"   />
         <field id="vfxsni"       long_name="daily snowice ice prod."                                      unit="m/day"   />
         <field id="vfxsum"       long_name="surface melt"                                                 unit="m/day"   />
         <field id="vfxbom"       long_name="bottom melt"                                                  unit="m/day"   />
         <field id="vfxres"       long_name="daily resultant ice prod./melting from limupdate"             unit="m/day"   />
         <field id="vfxice"       long_name="ice melt/growth"                                              unit="m/day"   />
         <field id="vfxsnw"       long_name="snw melt/growth"                                              unit="m/day"   />
         <field id="vfxsub"       long_name="snw sublimation"                                              unit="m/day"   />
         <field id="vfxsub_err"   long_name="excess of snw sublimation sent to ocean"                      unit="m/day"   />
         <field id="vfxspr"       long_name="snw precipitation on ice"                                     unit="m/day"   />
         <field id="vfxthin"      long_name="daily thermo ice prod. for thin ice(20cm) + open water"       unit="m/day"   />

         <field id="afxtot"       long_name="area tendency (total)"                                        unit="s-1"   />

         <field id="hfxsum"       long_name="heat fluxes causing surface ice melt"                         unit="W/m2"  />
         <field id="hfxbom"       long_name="heat fluxes causing bottom ice melt"                          unit="W/m2"  />
         <field id="hfxbog"       long_name="heat fluxes causing bottom ice growth"                        unit="W/m2"  />
         <field id="hfxdif"       long_name="heat fluxes causing ice temperature change"                   unit="W/m2"  />
         <field id="hfxopw"       long_name="heat fluxes causing open water ice formation"                 unit="W/m2"  />
         <field id="hfxsnw"       long_name="heat fluxes causing snow melt"                                unit="W/m2"  />
         <field id="hfxerr"       long_name="heat fluxes error after heat diffusion"                       unit="W/m2"  />
         <field id="hfxerr_rem"   long_name="heat fluxes error after remapping"                            unit="W/m2"  />
         <field id="hfxout"       long_name="total heat fluxes received by the ocean"                      unit="W/m2"  />
         <field id="hfxin"        long_name="total heat fluxes at the ice/ocean surface"                   unit="W/m2"  />

         <!-- heat flux associated with mass exchange -->
         <field id="hfxthd"       long_name="heat fluxes from ice-ocean mass exchange during thermo"       unit="W/m2"  />
         <field id="hfxdyn"       long_name="heat fluxes from ice-ocean mass exchange during dynamic"      unit="W/m2"  />
         <field id="hfxres"       long_name="heat fluxes from ice-ocean mass exchange during resultant"    unit="W/m2"  />
         <field id="hfxsub"       long_name="heat fluxes from ice-atm. mass exchange during sublimation"   unit="W/m2"  />
         <field id="hfxspr"       long_name="heat fluxes from ice-atm. mass exchange during snow precip"   unit="W/m2"  />

         <!-- diags -->
         <field id="hfxdhc"       long_name="Heat content variation in snow and ice"                       unit="W/m2" />
         <field id="hfxtur"       long_name="turbulent heat flux at the ice base"                          unit="W/m2" />

         <!-- in order to compute flux through straits -->
         <field id="icevolu"  long_name="Sea-ice volume per area"                              standard_name="sea_ice_thickness"                          unit="m"            />
         <field id="vtiu"     long_name="Sea ice mass flux in zonal direction"      standard_name="sea_ice_mass_transport_zonal" unit="m2/s"  grid_ref="grid_U_2D" detect_missing_value="true" /> 
         <field id="vtiv"     long_name="Sea ice mass flux in meridional direction"      standard_name="sea_ice_mass_transport_meridional" unit="m2/s"  grid_ref="grid_V_2D" detect_missing_value="true" />
         <field id="vtsu"     long_name="Snow mass flux in zonal direction"      standard_name="snow_mass_transport_zonal" unit="m2/s"  grid_ref="grid_U_2D" detect_missing_value="true" /> 
         <field id="vtsv"     long_name="Snow mass flux in meridional direction"  standard_name="snow_mass_transport_meridional" unit="m2/s"  grid_ref="grid_V_2D" detect_missing_value="true" />
         <field id="atiu"     long_name="Sea ice area flux in zonal direction"      standard_name="sea_ice_area_transport_zonal" unit="m2/s"  grid_ref="grid_U_2D" detect_missing_value="true" /> 
         <field id="ativ"     long_name="Sea ice area flux in meridional direction"      standard_name="sea_area_mass_transport_meridional" unit="m2/s"  grid_ref="grid_V_2D" detect_missing_value="true" /> 

         <field id="vtiu_ave" grid_ref="grid_U_2D" freq_op="1mo" freq_offset="_reset_" field_ref="vtiu" > @vtiu </field>
         <field id="vtiu_scalar" grid_ref="grid_U_2D_scalar"  > vtiu_ave </field>
         <field id="vtiu_transect"  field_ref="vtiu_scalar" grid_ref="grid_U_transect_lim"  />
         <field id="transport_vtiu_mask_transect" field_ref="vtiu_transect" grid_ref="grid_U_transect_lim" detect_missing_value="true" > vtiu_transect*maskMFO_lim_u  </field>
         <field id="transport_simasse_U_transect" field_ref="transport_vtiu_mask_transect" grid_ref="grid_U_transect_lim_hsum" unit="kg/s" > transport_vtiu_mask_transect*$rhoic  </field>

         <field id="vtiv_ave" grid_ref="grid_V_2D" freq_op="1mo" freq_offset="_reset_" field_ref="vtiv" > @vtiv </field>
         <field id="vtiv_scalar" grid_ref="grid_V_2D_scalar"  > vtiv_ave </field>
         <field id="vtiv_transect"  field_ref="vtiv_scalar" grid_ref="grid_V_transect_lim" />
         <field id="transport_vtiv_mask_transect" field_ref="vtiv_transect" grid_ref="grid_V_transect_lim" detect_missing_value="true" > vtiv_transect*maskMFO_lim_v  </field>
         <field id="transport_simasse_V_transect" field_ref="transport_vtiv_mask_transect" grid_ref="grid_V_transect_lim_hsum" unit="kg/s" > transport_vtiv_mask_transect*$rhoic </field>
         <field id="transport_simasse_transect" grid_ref="grid_transect_lim" freq_op="1mo" freq_offset="1mo-2ts" > transport_simasse_U_transect+transport_simasse_V_transect</field>


         <field id="atiu_ave" grid_ref="grid_U_2D" freq_op="1mo" freq_offset="_reset_" field_ref="atiu" > @atiu </field>
         <field id="atiu_scalar" grid_ref="grid_U_2D_scalar"  > atiu_ave </field>
         <field id="atiu_transect"  field_ref="atiu_scalar" grid_ref="grid_U_transect_lim" />
         <field id="transport_atiu_mask_transect" field_ref="atiu_transect" grid_ref="grid_U_transect_lim" detect_missing_value="true" > atiu_transect*maskMFO_lim_u  </field>
         <field id="transport_siarea_U_transect" field_ref="transport_atiu_mask_transect" grid_ref="grid_U_transect_lim_hsum" > transport_atiu_mask_transect </field>

         <field id="ativ_ave" grid_ref="grid_V_2D" freq_op="1mo" freq_offset="_reset_" field_ref="ativ" > @ativ </field>
         <field id="ativ_scalar" grid_ref="grid_V_2D_scalar"  > ativ_ave </field>
         <field id="ativ_transect"  field_ref="ativ_scalar" grid_ref="grid_V_transect_lim" />
         <field id="transport_ativ_mask_transect" field_ref="ativ_transect" grid_ref="grid_V_transect_lim" detect_missing_value="true" > ativ_transect*maskMFO_lim_v  </field>
         <field id="transport_siarea_V_transect" field_ref="transport_ativ_mask_transect" grid_ref="grid_V_transect_lim_hsum" > transport_ativ_mask_transect </field>
         <field id="transport_siarea_transect" grid_ref="grid_transect_lim" freq_op="1mo" freq_offset="1mo-2ts" > transport_siarea_U_transect+transport_siarea_V_transect</field>

         <field id="vtsu_ave" grid_ref="grid_U_2D" freq_op="1mo" freq_offset="_reset_" field_ref="vtsu" > @vtsu </field>
         <field id="vtsu_scalar" grid_ref="grid_U_2D_scalar"  > vtsu_ave </field>
         <field id="vtsu_transect"  field_ref="vtsu_scalar" grid_ref="grid_U_transect_lim" />
         <field id="transport_vtsu_mask_transect" field_ref="vtsu_transect" grid_ref="grid_U_transect_lim" detect_missing_value="true" > vtsu_transect*maskMFO_lim_u  </field>
         <field id="transport_snmasse_U_transect" field_ref="transport_vtsu_mask_transect" grid_ref="grid_U_transect_lim_hsum" unit="kg/s" > transport_vtsu_mask_transect*$rhosn </field>

         <field id="vtsv_ave" grid_ref="grid_V_2D" freq_op="1mo" freq_offset="_reset_" field_ref="vtsv" > @vtsv </field>
         <field id="vtsv_scalar" grid_ref="grid_V_2D_scalar"  > vtsv_ave </field>
         <field id="vtsv_transect"  field_ref="vtsv_scalar" grid_ref="grid_V_transect_lim" />
         <field id="transport_vtsv_mask_transect" field_ref="vtsv_transect" grid_ref="grid_V_transect_lim" detect_missing_value="true" > vtsv_transect*maskMFO_lim_v </field>
         <field id="transport_snmasse_V_transect" field_ref="transport_vtsv_mask_transect" grid_ref="grid_V_transect_lim_hsum" unit="kg/s" > transport_vtsv_mask_transect*$rhosn  </field>
         <field id="transport_snmasse_transect" grid_ref="grid_transect_lim" freq_op="1mo" freq_offset="1mo-2ts" > transport_snmasse_U_transect+transport_snmasse_V_transect</field>

      </field_group>

      <field_group id="SBC_scalar" grid_ref="grid_T_2D" >
         <field id="ibgfrcvoltop"    long_name="global mean ice/snow forcing at interface ice/snow-atm (volume equivalent ocean volume)"   unit="km3"        />
         <field id="ibgfrcvolbot"    long_name="global mean ice/snow forcing at interface ice/snow-ocean (volume equivalent ocean volume)" unit="km3"        />
         <field id="ibgfrctemtop"    long_name="global mean heat on top of ice/snw/ocean-atm "                                             unit="1e20J"      />
         <field id="ibgfrctembot"    long_name="global mean heat below ice (on top of ocean) "                                             unit="1e20J"      />
         <field id="ibgfrcsal"       long_name="global mean ice/snow forcing (salt equivalent ocean volume)"                               unit="pss*km3"    />
         <field id="ibgfrchfxtop"    long_name="global mean heat flux on top of ice/snw/ocean-atm "                                        unit="W/m2"       />
         <field id="ibgfrchfxbot"    long_name="global mean heat flux below ice (on top of ocean) "                                        unit="W/m2"       />
 
         <field id="ibgvolume"       long_name="drift in ice/snow volume (equivalent ocean volume)"                                        unit="km3"        />
         <field id="ibgsaltco"       long_name="drift in ice salt content (equivalent ocean volume)"                                       unit="pss*km3"    />
         <field id="ibgheatco"       long_name="drift in ice/snow heat content"                                                            unit="1e20J"      />
         <field id="ibgheatfx"       long_name="drift in ice/snow heat flux"                                                               unit="W/m2"       />

         <field id="ibgvol_tot"      long_name="global mean ice volume"                                                                    unit="km3"        />
         <field id="sbgvol_tot"      long_name="global mean snow volume"                                                                   unit="km3"        />
         <field id="ibgarea_tot"     long_name="global mean ice area"                                                                      unit="km2"        />
         <field id="ibgsalt_tot"     long_name="global mean ice salt content"                                                              unit="1e-3*km3"   />
         <field id="ibgheat_tot"     long_name="global mean ice heat content"                                                              unit="1e20J"      />
         <field id="sbgheat_tot"     long_name="global mean snow heat content"                                                             unit="1e20J"      />

         <field id="NH_iceextt"      long_name="Sea ice extent North"                            standard_name="sea_ice_extent_n"          unit="1e6_km2"    />
         <field id="SH_iceextt"      long_name="Sea ice extent South"                            standard_name="sea_ice_extent_s"          unit="1e6_km2"    />
         <field id="NH_icevolu"      long_name="Sea ice volume North"                            standard_name="sea_ice_volume_n"          unit="1e3_km3"    />
         <field id="SH_icevolu"      long_name="Sea ice volume South"                            standard_name="sea_ice_volume_s"          unit="1e3_km3"    />
         <field id="NH_icearea"      long_name="Sea ice area North"                              standard_name="sea_ice_area_n"            unit="1e6_km2"    />
	 <field id="SH_icearea"      long_name="Sea ice area South"                              standard_name="sea_ice_area_s"            unit="1e6_km2"    />

         <field id="NH_sc_iceextt"        field_ref="NH_iceextt"      grid_ref="grid_1point" />
         <field id="SH_sc_iceextt"        field_ref="SH_iceextt"      grid_ref="grid_1point" />
         <field id="NH_sc_icevolu"        field_ref="NH_icevolu"      grid_ref="grid_1point" />
         <field id="SH_sc_icevolu"        field_ref="SH_icevolu"      grid_ref="grid_1point" />
         <field id="NH_sc_icearea"        field_ref="NH_icearea"      grid_ref="grid_1point" />
         <field id="SH_sc_icearea"        field_ref="SH_icearea"      grid_ref="grid_1point" />

      <!--  Available later
         <field id="strait_mifl"     long_name="Sea ice mass flux through straits"      standard_name="sea_ice_mass_transport_across_line" unit="kg/s"  grid_ref="grid_4strait"   />
         <field id="strait_arfl"     long_name="Sea ice area flux through straits"      standard_name="sea_ice_area_transport_across_line" unit="m2/s"  grid_ref="grid_4strait"   />  
         <field id="strait_msfl"     long_name="Sea ice snow flux through straits"      standard_name="snow_mass_transport_across_line"    unit="kg/s"  grid_ref="grid_4strait"   />
       -->

      </field_group>

      <!-- LIM3 scalar variables -->
      <field_group id="ICE_globalbudget">

    	<field field_ref="ibgvol_tot"     grid_ref="grid_1point"  name="ibgvol_tot"   />
	    <field field_ref="sbgvol_tot"     grid_ref="grid_1point"  name="sbgvol_tot"   />
    	<field field_ref="ibgarea_tot"    grid_ref="grid_1point"  name="ibgarea_tot"  />
    	<field field_ref="ibgsalt_tot"    grid_ref="grid_1point"  name="ibgsalt_tot"  />
    	<field field_ref="ibgheat_tot"    grid_ref="grid_1point"  name="ibgheat_tot"  />
    	<field field_ref="sbgheat_tot"    grid_ref="grid_1point"  name="sbgheat_tot"  />

     	<field field_ref="ibgvolume"      grid_ref="grid_1point"  name="ibgvolume"    />
    	<field field_ref="ibgsaltco"      grid_ref="grid_1point"  name="ibgsaltco"    />
    	<field field_ref="ibgheatco"      grid_ref="grid_1point"  name="ibgheatco"    />
        <field field_ref="ibgheatfx"      grid_ref="grid_1point"  name="ibgheatfx"    />

    	<field field_ref="ibgfrcvoltop"   grid_ref="grid_1point"  name="ibgfrcvoltop" />
    	<field field_ref="ibgfrcvolbot"   grid_ref="grid_1point"  name="ibgfrcvolbot" />
    	<field field_ref="ibgfrctemtop"   grid_ref="grid_1point"  name="ibgfrctemtop" />
    	<field field_ref="ibgfrctembot"   grid_ref="grid_1point"  name="ibgfrctembot" />
    	<field field_ref="ibgfrcsal"      grid_ref="grid_1point"  name="ibgfrcsal"    />
        <field field_ref="ibgfrchfxtop"   grid_ref="grid_1point"  name="ibgfrchfxtop" />
        <field field_ref="ibgfrchfxbot"   grid_ref="grid_1point"  name="ibgfrchfxbot" />

      </field_group>

   </field_definition>