MODULE iceadv !!====================================================================== !! *** MODULE iceadv *** !! LIM transport ice model : sea-ice advection/diffusion !!====================================================================== !! History : LIM-2 ! 2000-01 (M.A. Morales Maqueda, H. Goosse, and T. Fichefet) Original code !! 3.0 ! 2005-11 (M. Vancoppenolle) Multi-layer sea ice, salinity variations !! 4.0 ! 2011-02 (G. Madec) dynamical allocation !!---------------------------------------------------------------------- #if defined key_lim3 !!---------------------------------------------------------------------- !! 'key_lim3' LIM3 sea-ice model !!---------------------------------------------------------------------- !! ice_adv : advection/diffusion process of sea ice !!---------------------------------------------------------------------- USE phycst ! physical constant USE dom_oce ! ocean domain USE sbc_oce , ONLY : nn_fsbc ! frequency of sea-ice call USE ice ! sea-ice: variables USE icevar ! sea-ice: operations USE iceadv_prather ! sea-ice: advection scheme (Prather) USE iceadv_umx ! sea-ice: advection scheme (ultimate-macho) USE icectl ! sea-ice: control prints ! USE in_out_manager ! I/O manager USE lbclnk ! lateral boundary conditions -- MPP exchanges USE lib_mpp ! MPP library USE prtctl ! Print control USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) USE timing ! Timing IMPLICIT NONE PRIVATE PUBLIC ice_adv ! called by icestp INTEGER :: ncfl ! number of ice time step with CFL>1/2 !! * Substitution # include "vectopt_loop_substitute.h90" !!---------------------------------------------------------------------- !! NEMO/ICE 4.0 , NEMO Consortium (2017) !! $Id: iceadv.F90 8373 2017-07-25 17:44:54Z clem $ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE ice_adv( kt ) !!---------------------------------------------------------------------- !! *** ROUTINE ice_adv *** !! !! ** purpose : advection/diffusion process of sea ice !! !! ** method : variables included in the process are scalar, !! other values are considered as second order. !! For advection, one can choose between !! a) an Ultimate-Macho scheme (whose order is defined by nn_limadv_ord) => nn_limadv=0 !! b) and a second order Prather scheme => nn_limadv=-1 !! !! ** action : !!---------------------------------------------------------------------- INTEGER, INTENT(in) :: kt ! number of iteration ! INTEGER :: ji, jj, jk, jl, jt ! dummy loop indices INTEGER :: initad ! number of sub-timestep for the advection REAL(wp) :: zcfl , zusnit ! - - CHARACTER(len=80) :: cltmp ! REAL(wp) :: zvi_b, zsmv_b, zei_b, zfs_b, zfw_b, zft_b REAL(wp) :: zdv, zda REAL(wp), DIMENSION(jpi,jpj) :: zatold, zeiold, zesold, zsmvold REAL(wp), DIMENSION(jpi,jpj,jpl) :: zhimax, zviold, zvsold ! --- ultimate macho only --- ! REAL(wp) :: zdt REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zudy, zvdx, zcu_box, zcv_box ! --- prather only --- ! REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zarea REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: z0opw REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: z0ice, z0snw, z0ai, z0es , z0smi , z0oi ! MV MP 2016 REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: z0ap , z0vp REAL(wp) :: za_old ! END MV MP 2016 REAL(wp), ALLOCATABLE, DIMENSION(:,:,:,:) :: z0ei !!--------------------------------------------------------------------- IF( nn_timing == 1 ) CALL timing_start('iceadv') IF( kt == nit000 .AND. lwp ) THEN WRITE(numout,*)'' WRITE(numout,*)'iceadv : sea-ice advection' WRITE(numout,*)'~~~~~~~' ncfl = 0 ! nb of time step with CFL > 1/2 ENDIF CALL ice_var_agg( 1 ) ! integrated values + ato_i !-------------------------------------! ! Advection of sea ice properties ! !-------------------------------------! ! conservation test IF( ln_limdiachk ) CALL ice_cons_hsm(0, 'iceadv', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) ! store old values for diag zviold = v_i zvsold = v_s zsmvold(:,:) = SUM( smv_i(:,:,:), dim=3 ) zeiold (:,:) = et_i zesold (:,:) = et_s !--- Thickness correction init. --- ! zatold(:,:) = at_i DO jl = 1, jpl DO jj = 1, jpj DO ji = 1, jpi rswitch = MAX( 0._wp , SIGN( 1._wp, a_i(ji,jj,jl) - epsi20 ) ) ht_i (ji,jj,jl) = v_i (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch ht_s (ji,jj,jl) = v_s (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch END DO END DO END DO ! --- Record max of the surrounding ice thicknesses for correction in case advection creates ice too thick --- ! zhimax(:,:,:) = ht_i(:,:,:) + ht_s(:,:,:) DO jl = 1, jpl DO jj = 2, jpjm1 DO ji = 2, jpim1 !!gm use of MAXVAL here is very probably less efficient than expending the 9 values zhimax(ji,jj,jl) = MAXVAL( ht_i(ji-1:ji+1,jj-1:jj+1,jl) + ht_s(ji-1:ji+1,jj-1:jj+1,jl) ) END DO END DO END DO CALL lbc_lnk( zhimax(:,:,:), 'T', 1. ) ! --- If ice drift field is too fast, use an appropriate time step for advection --- ! zcfl = MAXVAL( ABS( u_ice(:,:) ) * rdt_ice * r1_e1u(:,:) ) ! CFL test for stability zcfl = MAX( zcfl, MAXVAL( ABS( v_ice(:,:) ) * rdt_ice * r1_e2v(:,:) ) ) IF( lk_mpp ) CALL mpp_max( zcfl ) IF( zcfl > 0.5 ) THEN ; initad = 2 ; zusnit = 0.5_wp ELSE ; initad = 1 ; zusnit = 1.0_wp ENDIF !! IF( zcfl > 0.5_wp .AND. lwp ) THEN !! ncfl = ncfl + 1 !! IF( ncfl > 0 ) THEN !! WRITE(cltmp,'(i6.1)') ncfl !! CALL ctl_warn( 'ice_adv: ncfl= ', TRIM(cltmp), 'advective ice time-step using a split in sub-time-step ') !! ENDIF !! ENDIF SELECT CASE ( nn_limadv ) !=============================! CASE ( 0 ) !== Ultimate-MACHO scheme ==! !=============================! ALLOCATE( zudy(jpi,jpj) , zvdx(jpi,jpj) , zcu_box(jpi,jpj) , zcv_box(jpi,jpj) ) IF( kt == nit000 .AND. lwp ) THEN WRITE(numout,*)'' WRITE(numout,*)'ice_adv_umx : Ultimate-MACHO advection scheme' WRITE(numout,*)'~~~~~~~~~~~' ENDIF ! zdt = rdt_ice / REAL(initad) ! transport zudy(:,:) = u_ice(:,:) * e2u(:,:) zvdx(:,:) = v_ice(:,:) * e1v(:,:) ! define velocity for advection: u*grad(H) DO jj = 2, jpjm1 DO ji = fs_2, fs_jpim1 IF ( u_ice(ji,jj) * u_ice(ji-1,jj) <= 0._wp ) THEN ; zcu_box(ji,jj) = 0._wp ELSEIF( u_ice(ji,jj) > 0._wp ) THEN ; zcu_box(ji,jj) = u_ice(ji-1,jj) ELSE ; zcu_box(ji,jj) = u_ice(ji ,jj) ENDIF IF ( v_ice(ji,jj) * v_ice(ji,jj-1) <= 0._wp ) THEN ; zcv_box(ji,jj) = 0._wp ELSEIF( v_ice(ji,jj) > 0._wp ) THEN ; zcv_box(ji,jj) = v_ice(ji,jj-1) ELSE ; zcv_box(ji,jj) = v_ice(ji,jj ) ENDIF END DO END DO ! advection DO jt = 1, initad CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, ato_i(:,:) ) ! Open water area DO jl = 1, jpl CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, a_i(:,:,jl) ) ! Ice area CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, v_i(:,:,jl) ) ! Ice volume CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, smv_i(:,:,jl) ) ! Salt content CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, oa_i (:,:,jl) ) ! Age content DO jk = 1, nlay_i CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, e_i(:,:,jk,jl) ) ! Ice heat content END DO CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, v_s(:,:,jl) ) ! Snow volume CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, e_s(:,:,1,jl) ) ! Snow heat content ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, a_ip(:,:,jl) ) ! Melt pond fraction CALL ice_adv_umx( kt, zdt, zudy, zvdx, zcu_box, zcv_box, v_ip(:,:,jl) ) ! Melt pond volume ENDIF ! END MV MP 2016 END DO END DO ! at_i(:,:) = a_i(:,:,1) ! total ice fraction DO jl = 2, jpl at_i(:,:) = at_i(:,:) + a_i(:,:,jl) END DO ! DEALLOCATE( zudy, zvdx, zcu_box, zcv_box ) !=============================! CASE ( -1 ) !== Prather scheme ==! !=============================! ALLOCATE( zarea(jpi,jpj) , z0opw(jpi,jpj, 1 ) , & & z0ice(jpi,jpj,jpl) , z0snw(jpi,jpj,jpl) , z0ai(jpi,jpj,jpl) , z0es(jpi,jpj,jpl) , & & z0smi(jpi,jpj,jpl) , z0oi (jpi,jpj,jpl) , z0ap(jpi,jpj,jpl) , z0vp(jpi,jpj,jpl) , & & z0ei (jpi,jpj,nlay_i,jpl) ) IF( kt == nit000 .AND. lwp ) THEN WRITE(numout,*)'' WRITE(numout,*)'ice_adv_xy : Prather advection scheme' WRITE(numout,*)'~~~~~~~~~~~' ENDIF zarea(:,:) = e1e2t(:,:) !------------------------- ! transported fields !------------------------- z0opw(:,:,1) = ato_i(:,:) * e1e2t(:,:) ! Open water area DO jl = 1, jpl z0snw(:,:,jl) = v_s (:,:, jl) * e1e2t(:,:) ! Snow volume z0ice(:,:,jl) = v_i (:,:, jl) * e1e2t(:,:) ! Ice volume z0ai (:,:,jl) = a_i (:,:, jl) * e1e2t(:,:) ! Ice area z0smi(:,:,jl) = smv_i(:,:, jl) * e1e2t(:,:) ! Salt content z0oi (:,:,jl) = oa_i (:,:, jl) * e1e2t(:,:) ! Age content z0es (:,:,jl) = e_s (:,:,1,jl) * e1e2t(:,:) ! Snow heat content DO jk = 1, nlay_i z0ei(:,:,jk,jl) = e_i(:,:,jk,jl) * e1e2t(:,:) ! Ice heat content END DO ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN z0ap(:,:,jl) = a_ip(:,:,jl) * e1e2t(:,:) ! Melt pond fraction z0vp(:,:,jl) = v_ip(:,:,jl) * e1e2t(:,:) ! Melt pond volume ENDIF ! END MV MP 2016 END DO IF( MOD( ( kt - 1) / nn_fsbc , 2 ) == 0 ) THEN !== odd ice time step: adv_x then adv_y ==! DO jt = 1, initad CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0opw (:,:,1), sxopw(:,:), & !--- ice open water area & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0opw (:,:,1), sxopw(:,:), & & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) DO jl = 1, jpl CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0ice (:,:,jl), sxice(:,:,jl), & !--- ice volume --- & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0ice (:,:,jl), sxice(:,:,jl), & & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0snw (:,:,jl), sxsn (:,:,jl), & !--- snow volume --- & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0snw (:,:,jl), sxsn (:,:,jl), & & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0smi (:,:,jl), sxsal(:,:,jl), & !--- ice salinity --- & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0smi (:,:,jl), sxsal(:,:,jl), & & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0oi (:,:,jl), sxage(:,:,jl), & !--- ice age --- & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0oi (:,:,jl), sxage(:,:,jl), & & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0ai (:,:,jl), sxa (:,:,jl), & !--- ice concentrations --- & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0ai (:,:,jl), sxa (:,:,jl), & & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0es (:,:,jl), sxc0 (:,:,jl), & !--- snow heat contents --- & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0es (:,:,jl), sxc0 (:,:,jl), & & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) DO jk = 1, nlay_i !--- ice heat contents --- CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) END DO ! MV MP 2016 CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0ap (:,:,jl), sxap (:,:,jl), & !--- melt pond fraction -- & sxxap (:,:,jl), syap (:,:,jl), syyap (:,:,jl), sxyap (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0ap (:,:,jl), sxap (:,:,jl), & & sxxap (:,:,jl), syap (:,:,jl), syyap (:,:,jl), sxyap (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 1._wp, zarea, z0vp (:,:,jl), sxvp (:,:,jl), & !--- melt pond volume -- & sxxvp (:,:,jl), syvp (:,:,jl), syyvp (:,:,jl), sxyvp (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 0._wp, zarea, z0vp (:,:,jl), sxvp (:,:,jl), & & sxxvp (:,:,jl), syvp (:,:,jl), syyvp (:,:,jl), sxyvp (:,:,jl) ) ! END MV MP 2016 END DO END DO ELSE DO jt = 1, initad CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0opw (:,:,1), sxopw(:,:), & !--- ice open water area & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0opw (:,:,1), sxopw(:,:), & & sxxopw(:,:) , syopw(:,:), syyopw(:,:), sxyopw(:,:) ) DO jl = 1, jpl CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0ice (:,:,jl), sxice(:,:,jl), & !--- ice volume --- & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0ice (:,:,jl), sxice(:,:,jl), & & sxxice(:,:,jl), syice(:,:,jl), syyice(:,:,jl), sxyice(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0snw (:,:,jl), sxsn (:,:,jl), & !--- snow volume --- & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0snw (:,:,jl), sxsn (:,:,jl), & & sxxsn (:,:,jl), sysn (:,:,jl), syysn (:,:,jl), sxysn (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0smi (:,:,jl), sxsal(:,:,jl), & !--- ice salinity --- & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0smi (:,:,jl), sxsal(:,:,jl), & & sxxsal(:,:,jl), sysal(:,:,jl), syysal(:,:,jl), sxysal(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0oi (:,:,jl), sxage(:,:,jl), & !--- ice age --- & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0oi (:,:,jl), sxage(:,:,jl), & & sxxage(:,:,jl), syage(:,:,jl), syyage(:,:,jl), sxyage(:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0ai (:,:,jl), sxa (:,:,jl), & !--- ice concentrations --- & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0ai (:,:,jl), sxa (:,:,jl), & & sxxa (:,:,jl), sya (:,:,jl), syya (:,:,jl), sxya (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0es (:,:,jl), sxc0 (:,:,jl), & !--- snow heat contents --- & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0es (:,:,jl), sxc0 (:,:,jl), & & sxxc0 (:,:,jl), syc0 (:,:,jl), syyc0 (:,:,jl), sxyc0 (:,:,jl) ) DO jk = 1, nlay_i !--- ice heat contents --- CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0ei(:,:,jk,jl), sxe (:,:,jk,jl), & & sxxe(:,:,jk,jl), sye (:,:,jk,jl), & & syye(:,:,jk,jl), sxye(:,:,jk,jl) ) END DO ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0ap (:,:,jl), sxap (:,:,jl), & !--- melt pond fraction --- & sxxap (:,:,jl), syap (:,:,jl), syyap (:,:,jl), sxyap (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0ap (:,:,jl), sxap (:,:,jl), & & sxxap (:,:,jl), syap (:,:,jl), syyap (:,:,jl), sxyap (:,:,jl) ) CALL ice_adv_y( zusnit, v_ice, 1._wp, zarea, z0vp (:,:,jl), sxvp (:,:,jl), & !--- melt pond volume --- & sxxvp (:,:,jl), syvp (:,:,jl), syyvp (:,:,jl), sxyvp (:,:,jl) ) CALL ice_adv_x( zusnit, u_ice, 0._wp, zarea, z0vp (:,:,jl), sxvp (:,:,jl), & & sxxvp (:,:,jl), syvp (:,:,jl), syyvp (:,:,jl), sxyvp (:,:,jl) ) ENDIF ! END MV MP 2016 END DO END DO ENDIF !------------------------------------------- ! Recover the properties from their contents !------------------------------------------- ato_i(:,:) = z0opw(:,:,1) * r1_e1e2t(:,:) DO jl = 1, jpl v_i (:,:, jl) = z0ice(:,:,jl) * r1_e1e2t(:,:) v_s (:,:, jl) = z0snw(:,:,jl) * r1_e1e2t(:,:) smv_i(:,:, jl) = z0smi(:,:,jl) * r1_e1e2t(:,:) oa_i (:,:, jl) = z0oi (:,:,jl) * r1_e1e2t(:,:) a_i (:,:, jl) = z0ai (:,:,jl) * r1_e1e2t(:,:) e_s (:,:,1,jl) = z0es (:,:,jl) * r1_e1e2t(:,:) DO jk = 1, nlay_i e_i(:,:,jk,jl) = z0ei(:,:,jk,jl) * r1_e1e2t(:,:) END DO ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN a_ip (:,:,jl) = z0ap (:,:,jl) * r1_e1e2t(:,:) v_ip (:,:,jl) = z0vp (:,:,jl) * r1_e1e2t(:,:) ENDIF ! END MV MP 2016 END DO ! at_i(:,:) = a_i(:,:,1) ! total ice fraction DO jl = 2, jpl at_i(:,:) = at_i(:,:) + a_i(:,:,jl) END DO ! DEALLOCATE( zarea , z0opw , z0ice, z0snw , z0ai , z0es , z0smi , z0oi , z0ap , z0vp , z0ei ) ! END SELECT ! --- diags --- DO jj = 1, jpj DO ji = 1, jpi diag_trp_ei (ji,jj) = ( SUM( e_i (ji,jj,1:nlay_i,:) ) - zeiold(ji,jj) ) * r1_rdtice diag_trp_es (ji,jj) = ( SUM( e_s (ji,jj,1:nlay_s,:) ) - zesold(ji,jj) ) * r1_rdtice diag_trp_smv(ji,jj) = ( SUM( smv_i(ji,jj,:) ) - zsmvold(ji,jj) ) * r1_rdtice diag_trp_vi (ji,jj) = SUM( v_i(ji,jj,:) - zviold(ji,jj,:) ) * r1_rdtice diag_trp_vs (ji,jj) = SUM( v_s(ji,jj,:) - zvsold(ji,jj,:) ) * r1_rdtice END DO END DO IF( nn_limdyn == 2) THEN ! CALL ice_var_zapsmall !--- zap small areas ---! ! DO jl = 1, jpl !--- Thickness correction in case too high --- ! DO jj = 1, jpj DO ji = 1, jpi ! IF ( v_i(ji,jj,jl) > 0._wp ) THEN ! rswitch = MAX( 0._wp , SIGN( 1._wp, a_i(ji,jj,jl) - epsi20 ) ) ht_i (ji,jj,jl) = v_i (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch ht_s (ji,jj,jl) = v_s (ji,jj,jl) / MAX( a_i(ji,jj,jl) , epsi20 ) * rswitch ! zdv = v_i(ji,jj,jl) + v_s(ji,jj,jl) - zviold(ji,jj,jl) - zvsold(ji,jj,jl) ! IF ( ( zdv > 0.0 .AND. (ht_i(ji,jj,jl)+ht_s(ji,jj,jl)) > zhimax(ji,jj,jl) .AND. zatold(ji,jj) < 0.80 ) .OR. & & ( zdv <= 0.0 .AND. (ht_i(ji,jj,jl)+ht_s(ji,jj,jl)) > zhimax(ji,jj,jl) ) ) THEN ! rswitch = MAX( 0._wp, SIGN( 1._wp, zhimax(ji,jj,jl) - epsi20 ) ) a_i(ji,jj,jl) = rswitch * ( v_i(ji,jj,jl) + v_s(ji,jj,jl) ) / MAX( zhimax(ji,jj,jl), epsi20 ) ! ! small correction due to *rswitch for a_i v_i (ji,jj,jl) = rswitch * v_i (ji,jj,jl) v_s (ji,jj,jl) = rswitch * v_s (ji,jj,jl) smv_i(ji,jj,jl) = rswitch * smv_i(ji,jj,jl) e_s(ji,jj,1,jl) = rswitch * e_s(ji,jj,1,jl) e_i(ji,jj,1:nlay_i,jl) = rswitch * e_i(ji,jj,1:nlay_i,jl) ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN a_ip (ji,jj,jl) = rswitch * a_ip (ji,jj,jl) v_ip (ji,jj,jl) = rswitch * v_ip (ji,jj,jl) ENDIF ! END MV MP 2016 ! ENDIF ! ENDIF ! END DO END DO END DO DO jj = 1, jpj !--- bound ht_i to hi_max (99 m). DO ji = 1, jpi ! MV MP 2016 za_old = a_i(ji,jj,jpl) ! END MV MP 2016 rswitch = MAX( 0._wp , SIGN( 1._wp, ht_i(ji,jj,jpl) - epsi20 ) ) ht_i(ji,jj,jpl) = MIN( ht_i(ji,jj,jpl) , hi_max(jpl) ) a_i (ji,jj,jpl) = v_i(ji,jj,jpl) / MAX( ht_i(ji,jj,jpl) , epsi20 ) * rswitch ! MV MP 2016 IF ( nn_pnd_scheme > 0 ) THEN ! correct pond fraction to avoid a_ip > a_i a_ip(ji,jj,jpl) = a_ip(ji,jj,jpl) * a_i(ji,jj,jpl) / MAX( za_old , epsi20 ) * rswitch ENDIF ! END MP 2016 END DO END DO ! ENDIF !------------------------------------------------------------ ! Impose a_i < amax if no ridging/rafting or in mono-category !------------------------------------------------------------ ! !!gm remplace the test by, l_piling a logical compute one for all in icestp.F90 (and its declaration in ice.F90 !!gm IF ( nn_limdyn == 1 .OR. ( ( nn_monocat == 2 ) .AND. ( jpl == 1 ) ) ) THEN ! simple conservative piling, comparable with LIM2 IF( l_piling ) THEN at_i(:,:) = SUM( a_i(:,:,:), dim=3 ) DO jl = 1, jpl DO jj = 1, jpj DO ji = 1, jpi rswitch = MAX( 0._wp, SIGN( 1._wp, at_i(ji,jj) - epsi20 ) ) zda = rswitch * MIN( rn_amax_2d(ji,jj) - at_i(ji,jj), 0._wp ) * a_i(ji,jj,jl) / MAX( at_i(ji,jj), epsi20 ) a_i(ji,jj,jl) = a_i(ji,jj,jl) + zda END DO END DO END DO !!gm better and faster coding? ! DO jl = 1, jpl ! WHERE( at_i(:,:) > epsi20 ) ! a_i(:,:,jl) = a_i(:,:,jl) * ( 1._wp + MIN( rn_amax_2d(:,:) - at_i(:,:) , 0._wp ) / at_i(:,:) ) ! END WHERE ! END DO !!gm end ENDIF ! --- agglomerate variables ----------------- vt_i(:,:) = SUM( v_i(:,:,:), dim=3 ) vt_s(:,:) = SUM( v_s(:,:,:), dim=3 ) at_i(:,:) = SUM( a_i(:,:,:), dim=3 ) ! MV MP 2016 (remove once we get rid of a_i_frac and ht_i) IF ( nn_pnd_scheme > 0 ) THEN at_ip(:,:) = SUM( a_ip(:,:,:), dim = 3 ) vt_ip(:,:) = SUM( v_ip(:,:,:), dim = 3 ) ENDIF ! END MP 2016 ! --- open water = 1 if at_i=0 -------------------------------- WHERE( at_i == 0._wp ) ato_i = 1._wp ! conservation test IF( ln_limdiachk ) CALL ice_cons_hsm(1, 'iceadv', zvi_b, zsmv_b, zei_b, zfw_b, zfs_b, zft_b) ! ------------------------------------------------- ! control prints ! ------------------------------------------------- IF( ln_limctl ) CALL ice_prt( kt, iiceprt, jiceprt,-1, ' - ice dyn & trp - ' ) ! IF( nn_timing == 1 ) CALL timing_stop('iceadv') ! END SUBROUTINE ice_adv #else !!---------------------------------------------------------------------- !! Default option Empty Module No sea-ice model !!---------------------------------------------------------------------- #endif !!====================================================================== END MODULE iceadv