MODULE trdken !!====================================================================== !! *** MODULE trdken *** !! Ocean diagnostics: compute and output 3D kinetic energy trends !!===================================================================== !! History : 3.5 ! 2012-02 (G. Madec) original code !!---------------------------------------------------------------------- !!---------------------------------------------------------------------- !! trd_ken : compute and output 3D Kinetic energy trends using IOM !! trd_ken_init : initialisation !!---------------------------------------------------------------------- USE oce ! ocean dynamics and tracers variables USE dom_oce ! ocean space and time domain variables USE zdf_oce ! ocean vertical physics variables USE trd_oce ! trends: ocean variables !!gm USE dynhpg ! hydrostatic pressure gradient USE zdfbfr ! bottom friction USE ldftra_oce ! ocean active tracers lateral physics USE sbc_oce ! surface boundary condition: ocean USE phycst ! physical constants USE trdvor ! ocean vorticity trends USE trdglo ! trends:global domain averaged USE trdmxl ! ocean active mixed layer tracers trends USE in_out_manager ! I/O manager USE iom ! I/O manager library USE lib_mpp ! MPP library USE wrk_nemo ! Memory allocation USE ldfslp ! Isopycnal slopes IMPLICIT NONE PRIVATE PUBLIC trd_ken ! called by trddyn module PUBLIC trd_ken_init ! called by trdini module INTEGER :: nkstp ! current time step REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: bu, bv ! volume of u- and v-boxes REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: r1_bt ! inverse of t-box volume !! * Substitutions # include "domzgr_substitute.h90" # include "vectopt_loop_substitute.h90" # include "ldfeiv_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/OPA 3.3 , NEMO Consortium (2010) !! $Id: trdken.F90 5424 2018-04-27 07:03:10Z ufla $ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS INTEGER FUNCTION trd_ken_alloc() !!--------------------------------------------------------------------- !! *** FUNCTION trd_ken_alloc *** !!--------------------------------------------------------------------- ALLOCATE( bu(jpi,jpj,jpk) , bv(jpi,jpj,jpk) , r1_bt(jpi,jpj,jpk) , STAT= trd_ken_alloc ) ! IF( lk_mpp ) CALL mpp_sum ( trd_ken_alloc ) IF( trd_ken_alloc /= 0 ) CALL ctl_warn('trd_ken_alloc: failed to allocate arrays') END FUNCTION trd_ken_alloc SUBROUTINE trd_ken( putrd, pvtrd, ktrd, kt ) !!--------------------------------------------------------------------- !! *** ROUTINE trd_ken *** !! !! ** Purpose : output 3D Kinetic Energy trends using IOM !! !! ** Method : - apply lbc to the input masked velocity trends !! - compute the associated KE trend: !! zke = 0.5 * ( mi-1[ un * putrd * bu ] + mj-1[ vn * pvtrd * bv] ) / bt !! where bu, bv, bt are the volume of u-, v- and t-boxes. !! - vertical diffusion case (jpdyn_zdf): !! diagnose separately the KE trend associated with wind stress !! - bottom friction case (jpdyn_bfr): !! explicit case (ln_bfrimp=F): bottom trend put in the 1st level !! of putrd, pvtrd ! ! !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: putrd, pvtrd ! U and V masked trends INTEGER , INTENT(in ) :: ktrd ! trend index INTEGER , INTENT(in ) :: kt ! time step ! INTEGER :: ji, jj, jk ! dummy loop indices INTEGER :: ikbu , ikbv ! local integers INTEGER :: ikbum1, ikbvm1 ! - - REAL(wp), POINTER, DIMENSION(:,:) :: z2dx, z2dy, zke2d ! 2D workspace REAL(wp), POINTER, DIMENSION(:,:,:) :: zke ! 3D workspace !!---------------------------------------------------------------------- ! CALL wrk_alloc( jpi, jpj, jpk, zke ) ! CALL lbc_lnk( putrd, 'U', -1. ) ; CALL lbc_lnk( pvtrd, 'V', -1. ) ! lateral boundary conditions ! IF ( lk_vvl .AND. kt /= nkstp ) THEN ! Variable volume: set box volume at the 1st call of kt time step nkstp = kt DO jk = 1, jpkm1 bu (:,:,jk) = e1u(:,:) * e2u(:,:) * fse3u_n(:,:,jk) bv (:,:,jk) = e1v(:,:) * e2v(:,:) * fse3v_n(:,:,jk) r1_bt(:,:,jk) = 1._wp / ( e1e2t(:,:) * fse3t_n(:,:,jk) ) * tmask(:,:,jk) END DO ENDIF ! zke(:,:,jpk) = 0._wp zke(1,:, : ) = 0._wp zke(:,1, : ) = 0._wp DO jk = 1, jpkm1 DO jj = 2, jpj DO ji = 2, jpi zke(ji,jj,jk) = 0.5_wp * rau0 *( un(ji ,jj,jk) * putrd(ji ,jj,jk) * bu(ji ,jj,jk) & & + un(ji-1,jj,jk) * putrd(ji-1,jj,jk) * bu(ji-1,jj,jk) & & + vn(ji,jj ,jk) * pvtrd(ji,jj ,jk) * bv(ji,jj ,jk) & & + vn(ji,jj-1,jk) * pvtrd(ji,jj-1,jk) * bv(ji,jj-1,jk) ) * r1_bt(ji,jj,jk) END DO END DO END DO ! SELECT CASE( ktrd ) CASE( jpdyn_hpg ) ; CALL iom_put( "ketrd_hpg", zke ) ! hydrostatic pressure gradient CASE( jpdyn_spg ) ; CALL iom_put( "ketrd_spg", zke ) ! surface pressure gradient CASE( jpdyn_spgexp ); CALL iom_put( "ketrd_spgexp", zke ) ! surface pressure gradient (explicit) CASE( jpdyn_spgflt ); CALL iom_put( "ketrd_spgflt", zke ) ! surface pressure gradient (filter) CASE( jpdyn_pvo ) ; CALL iom_put( "ketrd_pvo", zke ) ! planetary vorticity CASE( jpdyn_rvo ) ; CALL iom_put( "ketrd_rvo", zke ) ! relative vorticity (or metric term) CASE( jpdyn_keg ) ; CALL iom_put( "ketrd_keg", zke ) ! Kinetic Energy gradient (or had) CASE( jpdyn_zad ) ; CALL iom_put( "ketrd_zad", zke ) ! vertical advection CASE( jpdyn_ldf ) ; CALL iom_put( "ketrd_ldf", zke ) ! lateral diffusion CASE( jpdyn_zdf ) ; CALL iom_put( "ketrd_zdf", zke ) ! vertical diffusion ! ! wind stress trends CALL wrk_alloc( jpi, jpj, z2dx, z2dy, zke2d ) z2dx(:,:) = un(:,:,1) * ( utau_b(:,:) + utau(:,:) ) * e1u(:,:) * e2u(:,:) * umask(:,:,1) z2dy(:,:) = vn(:,:,1) * ( vtau_b(:,:) + vtau(:,:) ) * e1v(:,:) * e2v(:,:) * vmask(:,:,1) zke2d(1,:) = 0._wp ; zke2d(:,1) = 0._wp DO jj = 2, jpj DO ji = 2, jpi zke2d(ji,jj) = 0.5_wp * ( z2dx(ji,jj) + z2dx(ji-1,jj) & & + z2dy(ji,jj) + z2dy(ji,jj-1) ) * r1_bt(ji,jj,1) END DO END DO CALL iom_put( "ketrd_tau", zke2d ) CALL wrk_dealloc( jpi, jpj , z2dx, z2dy, zke2d ) CASE( jpdyn_bfr ) ; CALL iom_put( "ketrd_bfr", zke ) ! bottom friction (explicit case) !!gm TO BE DONE properly !!gm only valid if ln_bfrimp=F otherwise the bottom stress as to be recomputed at the end of the computation.... ! IF(.NOT. ln_bfrimp) THEN ! DO jj = 1, jpj ! ! DO ji = 1, jpi ! ikbu = mbku(ji,jj) ! deepest ocean u- & v-levels ! ikbv = mbkv(ji,jj) ! z2dx(ji,jj) = un(ji,jj,ikbu) * bfrua(ji,jj) * un(ji,jj,ikbu) ! z2dy(ji,jj) = vn(ji,jj,ikbu) * bfrva(ji,jj) * vn(ji,jj,ikbv) ! END DO ! END DO ! zke2d(1,:) = 0._wp ; zke2d(:,1) = 0._wp ! DO jj = 2, jpj ! DO ji = 2, jpi ! zke2d(ji,jj) = 0.5_wp * ( z2dx(ji,jj) + z2dx(ji-1,jj) & ! & + z2dy(ji,jj) + z2dy(ji,jj-1) ) * r1_bt(ji,jj, BEURK!!! ! END DO ! END DO ! CALL iom_put( "ketrd_bfr", zke2d ) ! bottom friction (explicit case) ! ENDIF !!gm end CASE( jpdyn_atf ) ; CALL iom_put( "ketrd_atf", zke ) ! asselin filter trends !! a faire !!!! idee changer dynnxt pour avoir un appel a jpdyn_bfr avant le swap !!! !! reflechir a une possible sauvegarde du "vrai" un,vn pour le calcul de atf.... ! ! IF( ln_bfrimp ) THEN ! bottom friction (implicit case) ! DO jj = 1, jpj ! after velocity known (now filed at this stage) ! DO ji = 1, jpi ! ikbu = mbku(ji,jj) ! deepest ocean u- & v-levels ! ikbv = mbkv(ji,jj) ! z2dx(ji,jj) = un(ji,jj,ikbu) * bfrua(ji,jj) * un(ji,jj,ikbu) / fse3u(ji,jj,ikbu) ! z2dy(ji,jj) = un(ji,jj,ikbu) * bfrva(ji,jj) * vn(ji,jj,ikbv) / fse3v(ji,jj,ikbv) ! END DO ! END DO ! zke2d(1,:) = 0._wp ; zke2d(:,1) = 0._wp ! DO jj = 2, jpj ! DO ji = 2, jpi ! zke2d(ji,jj) = 0.5_wp * ( z2dx(ji,jj) + z2dx(ji-1,jj) & ! & + z2dy(ji,jj) + z2dy(ji,jj-1) ) ! END DO ! END DO ! CALL iom_put( "ketrd_bfri", zke2d ) ! ENDIF CASE( jpdyn_ken ) ; ! kinetic energy ! called in dynnxt.F90 before asselin time filter ! with putrd=ua and pvtrd=va zke(:,:,:) = 0.5_wp * zke(:,:,:) CALL iom_put( "KE", zke ) ! CALL ken_p2k( kt , zke ) CALL iom_put( "ketrd_convP2K", zke ) ! conversion -rau*g*w !!gm moved in traadv_eiv ===>>> diag becomes accessible without ln_trdtra=T ! CASE( jpdyn_eivke ) ! ! CMIP6 diagnostic tknebto = tendency of EKE from ! ! parameterized mesoscale eddy advection ! ! = vertical_integral( k (N S)^2 ) rho dz ! ! rho = reference density ! ! S = isoneutral slope. ! ! Most terms are on W grid so work on this grid !#ifdef key_traldf_eiv ! CALL wrk_alloc( jpi, jpj, zke2d ) ! zke2d(:,:) = 0._wp ! DO jk = 1,jpk ! DO ji = 1,jpi ! DO jj = 1,jpj ! zke2d(ji,jj) = zke2d(ji,jj) + rau0 * fsaeiw(ji, jj, jk) & ! & * ( wslpi(ji, jj, jk) * wslpi(ji,jj,jk) & ! & + wslpj(ji, jj, jk) * wslpj(ji,jj,jk) ) & ! & * rn2(ji,jj,jk) * fse3w(ji, jj, jk) ! ENDDO ! ENDDO ! ENDDO ! CALL iom_put("ketrd_eiv", zke2d) ! CALL wrk_dealloc( jpi, jpj, zke2d ) !#endif !!gm end ! END SELECT ! CALL wrk_dealloc( jpi, jpj, jpk, zke ) ! END SUBROUTINE trd_ken SUBROUTINE ken_p2k( kt , pconv ) !!--------------------------------------------------------------------- !! *** ROUTINE ken_p2k *** !! !! ** Purpose : compute rate of conversion from potential to kinetic energy !! !! ** Method : - compute conv defined as -rau*g*w on T-grid points !! !! ** Work only for full steps and partial steps (ln_hpg_zco or ln_hpg_zps) !!---------------------------------------------------------------------- INTEGER, INTENT(in) :: kt ! ocean time-step index !! REAL(wp), DIMENSION(jpi,jpj,jpk ), INTENT( out) :: pconv ! INTEGER :: ji, jj, jk ! dummy loop indices INTEGER :: iku, ikv ! temporary integers REAL(wp) :: zcoef ! temporary scalars REAL(wp), POINTER, DIMENSION(:,:,:) :: zconv ! temporary conv on W-grid !!---------------------------------------------------------------------- ! CALL wrk_alloc( jpi,jpj,jpk, zconv ) ! ! Local constant initialization zcoef = - rau0 * grav * 0.5_wp ! Surface value (also valid in partial step case) zconv(:,:,1) = zcoef * ( 2._wp * rhd(:,:,1) ) * wn(:,:,1) * fse3w(:,:,1) ! interior value (2=