- Timestamp:
- 2016-07-19T10:38:35+02:00 (8 years ago)
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branches/NERC/dev_r5549_BDY_ZEROGRAD/NEMOGCM/NEMO/OPA_SRC/SBC/sbcwave.F90
r5215 r6808 4 4 !! Wave module 5 5 !!====================================================================== 6 !! History : 3.3 .1! 2011-09 (Adani M) Original code: Drag Coefficient7 !! : 3.4 6 !! History : 3.3 ! 2011-09 (Adani M) Original code: Drag Coefficient 7 !! : 3.4 ! 2012-10 (Adani M) Stokes Drift 8 8 !!---------------------------------------------------------------------- 9 USE iom ! I/O manager library 10 USE in_out_manager ! I/O manager 11 USE lib_mpp ! distribued memory computing library 9 10 !!---------------------------------------------------------------------- 11 !! sbc_wave : read drag coefficient from wave model in netcdf files 12 !!---------------------------------------------------------------------- 13 USE oce ! 14 USE sbc_oce ! Surface boundary condition: ocean fields 15 USE bdy_oce ! 16 USE domvvl ! 17 ! 18 USE iom ! I/O manager library 19 USE in_out_manager ! I/O manager 20 USE lib_mpp ! distribued memory computing library 12 21 USE fldread ! read input fields 13 USE oce 14 USE sbc_oce ! Surface boundary condition: ocean fields 15 USE domvvl 16 17 18 !!---------------------------------------------------------------------- 19 !! sbc_wave : read drag coefficient from wave model in netcdf files 20 !!---------------------------------------------------------------------- 22 USE wrk_nemo ! 21 23 22 24 IMPLICIT NONE … … 25 27 PUBLIC sbc_wave ! routine called in sbc_blk_core or sbc_blk_mfs 26 28 27 INTEGER , PARAMETER :: jpfld = 3 ! maximum number of files to read for srokes drift 28 INTEGER , PARAMETER :: jp_usd = 1 ! index of stokes drift (i-component) (m/s) at T-point 29 INTEGER , PARAMETER :: jp_vsd = 2 ! index of stokes drift (j-component) (m/s) at T-point 30 INTEGER , PARAMETER :: jp_wn = 3 ! index of wave number (1/m) at T-point 29 INTEGER , PARAMETER :: jpfld = 3 ! maximum number of files to read for srokes drift 30 INTEGER , PARAMETER :: jp_usd = 1 ! index of stokes drift (i-component) (m/s) at T-point 31 INTEGER , PARAMETER :: jp_vsd = 2 ! index of stokes drift (j-component) (m/s) at T-point 32 INTEGER , PARAMETER :: jp_wn = 3 ! index of wave number (1/m) at T-point 33 31 34 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_cd ! structure of input fields (file informations, fields read) Drag Coefficient 32 35 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_sd ! structure of input fields (file informations, fields read) Stokes Drift 33 REAL(wp),PUBLIC,ALLOCATABLE,DIMENSION (:,:) :: cdn_wave 34 REAL(wp),ALLOCATABLE,DIMENSION (:,:) :: usd2d,vsd2d,uwavenum,vwavenum 35 REAL(wp),PUBLIC,ALLOCATABLE,DIMENSION (:,:,:) :: usd3d,vsd3d,wsd3d 36 37 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION (:,:) :: cdn_wave 38 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION (:,:,:) :: usd3d, vsd3d, wsd3d 39 REAL(wp), ALLOCATABLE, DIMENSION (:,:) :: usd2d, vsd2d, uwavenum, vwavenum 36 40 37 41 !! * Substitutions 38 # include " domzgr_substitute.h90"42 # include "vectopt_loop_substitute.h90" 39 43 !!---------------------------------------------------------------------- 40 !! NEMO/OPA 4.0 , NEMO Consortium (2011)44 !! NEMO/OPA 3.7 , NEMO Consortium (2014) 41 45 !! $Id$ 42 46 !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) … … 56 60 !! - Compute 3d stokes drift using monochromatic 57 61 !! ** action : 58 !!59 62 !!--------------------------------------------------------------------- 60 USE oce, ONLY : un,vn,hdivn,rotn 61 USE divcur 62 USE wrk_nemo 63 #if defined key_bdy 64 USE bdy_oce, ONLY : bdytmask 65 #endif 66 INTEGER, INTENT( in ) :: kt ! ocean time step 67 INTEGER :: ierror ! return error code 68 INTEGER :: ifpr, jj,ji,jk 63 INTEGER, INTENT( in ) :: kt ! ocean time step 64 ! 65 INTEGER :: ierror ! return error code 66 INTEGER :: ifpr, jj,ji,jk 69 67 INTEGER :: ios ! Local integer output status for namelist read 70 REAL(wp),DIMENSION(:,:,:),POINTER :: udummy,vdummy,hdivdummy,rotdummy71 REAL :: z2dt,z1_2dt72 68 TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read 73 69 CHARACTER(len=100) :: cn_dir ! Root directory for location of drag coefficient files 74 70 TYPE(FLD_N) :: sn_cdg, sn_usd, sn_vsd, sn_wn ! informations about the fields to be read 71 REAL(wp), DIMENSION(:,:,:), POINTER :: zusd_t, zvsd_t, ze3hdiv ! 3D workspace 72 !! 73 NAMELIST/namsbc_wave/ sn_cdg, cn_dir, sn_usd, sn_vsd, sn_wn, ln_cdgw , ln_sdw 75 74 !!--------------------------------------------------------------------- 76 NAMELIST/namsbc_wave/ sn_cdg, cn_dir, sn_usd, sn_vsd, sn_wn77 !!---------------------------------------------------------------------78 79 !!----------------------------------------------------------------------80 !81 75 ! 82 76 ! ! -------------------- ! … … 86 80 READ ( numnam_ref, namsbc_wave, IOSTAT = ios, ERR = 901) 87 81 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_wave in reference namelist', lwp ) 88 82 ! 89 83 REWIND( numnam_cfg ) ! Namelist namsbc_wave in configuration namelist : File for drag coeff. from wave model 90 84 READ ( numnam_cfg, namsbc_wave, IOSTAT = ios, ERR = 902 ) … … 92 86 IF(lwm) WRITE ( numond, namsbc_wave ) 93 87 ! 94 95 IF ( ln_cdgw ) THEN 88 IF(lwp) THEN ! Control print 89 WRITE(numout,*) ' Namelist namsbc_wave : surface wave setting' 90 WRITE(numout,*) ' wave drag coefficient ln_cdgw = ', ln_cdgw 91 WRITE(numout,*) ' wave stokes drift ln_sdw = ', ln_sdw 92 ENDIF 93 ! 94 IF( .NOT.( ln_cdgw .OR. ln_sdw ) ) & 95 & CALL ctl_warn( 'ln_sbcwave=T but nor drag coefficient (ln_cdgw=F) neither stokes drift activated (ln_sdw=F)' ) 96 IF( ln_cdgw .AND. .NOT.(ln_blk_mfs .OR. ln_blk_core) ) & 97 & CALL ctl_stop( 'drag coefficient read from wave model definable only with mfs bulk formulae and core') 98 ! 99 IF( ln_cdgw ) THEN 96 100 ALLOCATE( sf_cd(1), STAT=ierror ) !* allocate and fill sf_wave with sn_cdg 97 101 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) … … 102 106 ALLOCATE( cdn_wave(jpi,jpj) ) 103 107 cdn_wave(:,:) = 0.0 104 ENDIF105 IF 108 ENDIF 109 IF( ln_sdw ) THEN 106 110 slf_i(jp_usd) = sn_usd ; slf_i(jp_vsd) = sn_vsd; slf_i(jp_wn) = sn_wn 107 111 ALLOCATE( sf_sd(3), STAT=ierror ) !* allocate and fill sf_wave with sn_cdg … … 113 117 END DO 114 118 CALL fld_fill( sf_sd, slf_i, cn_dir, 'sbc_wave', 'Wave module ', 'namsbc_wave' ) 115 ALLOCATE( usd2d(jpi,jpj) ,vsd2d(jpi,jpj),uwavenum(jpi,jpj),vwavenum(jpi,jpj) )119 ALLOCATE( usd2d(jpi,jpj) , vsd2d(jpi,jpj) , uwavenum(jpi,jpj) , vwavenum(jpi,jpj) ) 116 120 ALLOCATE( usd3d(jpi,jpj,jpk),vsd3d(jpi,jpj,jpk),wsd3d(jpi,jpj,jpk) ) 117 usd2d(:,:) = 0.0 ; vsd2d(:,:) = 0.0 ; uwavenum(:,:) = 0.0 ; vwavenum(:,:) = 0.0 118 usd3d(:,:,:) = 0.0 ;vsd3d(:,:,:) = 0.0 ; wsd3d(:,:,:) = 0.0 121 usd3d(:,:,:) = 0._wp ; usd2d(:,:) = 0._wp ; uwavenum(:,:) = 0._wp 122 vsd3d(:,:,:) = 0._wp ; vsd2d(:,:) = 0._wp ; vwavenum(:,:) = 0._wp 123 wsd3d(:,:,:) = 0._wp 119 124 ENDIF 120 125 ENDIF 121 ! 122 ! 123 IF ( ln_cdgw ) THEN 124 CALL fld_read( kt, nn_fsbc, sf_cd ) !* read drag coefficient from external forcing 126 ! 127 IF( ln_cdgw ) THEN !== Neutral drag coefficient ==! 128 CALL fld_read( kt, nn_fsbc, sf_cd ) ! read from external forcing 125 129 cdn_wave(:,:) = sf_cd(1)%fnow(:,:,1) 126 130 ENDIF 127 IF ( ln_sdw ) THEN 128 CALL fld_read( kt, nn_fsbc, sf_sd ) !* read drag coefficient from external forcing 129 130 ! Interpolate wavenumber, stokes drift into the grid_V and grid_V 131 !------------------------------------------------- 132 133 DO jj = 1, jpjm1 134 DO ji = 1, jpim1 135 uwavenum(ji,jj)=0.5 * ( 2. - umask(ji,jj,1) ) * ( sf_sd(3)%fnow(ji,jj,1) * tmask(ji,jj,1) & 136 & + sf_sd(3)%fnow(ji+1,jj,1) * tmask(ji+1,jj,1) ) 137 138 vwavenum(ji,jj)=0.5 * ( 2. - vmask(ji,jj,1) ) * ( sf_sd(3)%fnow(ji,jj,1) * tmask(ji,jj,1) & 139 & + sf_sd(3)%fnow(ji,jj+1,1) * tmask(ji,jj+1,1) ) 140 141 usd2d(ji,jj) = 0.5 * ( 2. - umask(ji,jj,1) ) * ( sf_sd(1)%fnow(ji,jj,1) * tmask(ji,jj,1) & 142 & + sf_sd(1)%fnow(ji+1,jj,1) * tmask(ji+1,jj,1) ) 143 144 vsd2d(ji,jj) = 0.5 * ( 2. - vmask(ji,jj,1) ) * ( sf_sd(2)%fnow(ji,jj,1) * tmask(ji,jj,1) & 145 & + sf_sd(2)%fnow(ji,jj+1,1) * tmask(ji,jj+1,1) ) 131 ! 132 IF( ln_sdw ) THEN !== Computation of the 3d Stokes Drift ==! 133 ! 134 CALL wrk_alloc( jpi,jpj,jpk, zusd_t, zvsd_t, ze3hdiv ) 135 ! 136 CALL fld_read( kt, nn_fsbc, sf_sd ) !* read drag coefficient from external forcing 137 ! 138 DO jk = 1, jpkm1 !* distribute it on the vertical 139 zusd_t(:,:,jk) = sf_sd(jp_usd)%fnow(:,:,1) * EXP( -2._wp * sf_sd(jp_wn)%fnow(:,:,1) * gdept_n(:,:,jk) ) 140 zvsd_t(:,:,jk) = sf_sd(jp_vsd)%fnow(:,:,1) * EXP( -2._wp * sf_sd(jp_wn)%fnow(:,:,1) * gdept_n(:,:,jk) ) 141 END DO 142 DO jk = 1, jpkm1 !* interpolate the stokes drift from t-point to u- and v-points 143 DO jj = 1, jpjm1 144 DO ji = 1, jpim1 145 usd3d(ji,jj,jk) = 0.5_wp * ( zusd_t(ji ,jj,jk) + zusd_t(ji+1,jj,jk) ) * umask(ji,jj,jk) 146 vsd3d(ji,jj,jk) = 0.5_wp * ( zvsd_t(ji ,jj,jk) + zvsd_t(ji,jj+1,jk) ) * vmask(ji,jj,jk) 147 END DO 146 148 END DO 147 149 END DO 148 149 !Computation of the 3d Stokes Drift 150 DO jk = 1, jpk 151 DO jj = 1, jpj-1 152 DO ji = 1, jpi-1 153 usd3d(ji,jj,jk) = usd2d(ji,jj)*exp(2.0*uwavenum(ji,jj)*(-MIN( gdept_0(ji,jj,jk) , gdept_0(ji+1,jj ,jk)))) 154 vsd3d(ji,jj,jk) = vsd2d(ji,jj)*exp(2.0*vwavenum(ji,jj)*(-MIN( gdept_0(ji,jj,jk) , gdept_0(ji ,jj+1,jk)))) 155 END DO 156 END DO 157 usd3d(jpi,:,jk) = usd2d(jpi,:)*exp( 2.0*uwavenum(jpi,:)*(-gdept_0(jpi,:,jk)) ) 158 vsd3d(:,jpj,jk) = vsd2d(:,jpj)*exp( 2.0*vwavenum(:,jpj)*(-gdept_0(:,jpj,jk)) ) 159 END DO 160 161 CALL wrk_alloc( jpi,jpj,jpk,udummy,vdummy,hdivdummy,rotdummy) 162 163 udummy(:,:,:)=un(:,:,:) 164 vdummy(:,:,:)=vn(:,:,:) 165 hdivdummy(:,:,:)=hdivn(:,:,:) 166 rotdummy(:,:,:)=rotn(:,:,:) 167 un(:,:,:)=usd3d(:,:,:) 168 vn(:,:,:)=vsd3d(:,:,:) 169 CALL div_cur(kt) 170 ! !------------------------------! 171 ! ! Now Vertical Velocity ! 172 ! !------------------------------! 173 z2dt = 2._wp * rdt ! set time step size (Euler/Leapfrog) 174 175 z1_2dt = 1.e0 / z2dt 176 DO jk = jpkm1, 1, -1 ! integrate from the bottom the hor. divergence 177 ! - ML - need 3 lines here because replacement of fse3t by its expression yields too long lines otherwise 178 wsd3d(:,:,jk) = wsd3d(:,:,jk+1) - fse3t_n(:,:,jk) * hdivn(:,:,jk) & 179 & - ( fse3t_a(:,:,jk) - fse3t_b(:,:,jk) ) & 180 & * tmask(:,:,jk) * z1_2dt 150 CALL lbc_lnk( usd3d(:,:,:), 'U', -1. ) 151 CALL lbc_lnk( vsd3d(:,:,:), 'V', -1. ) 152 ! 153 DO jk = 1, jpkm1 !* e3t * Horizontal divergence ==! 154 DO jj = 2, jpjm1 155 DO ji = fs_2, fs_jpim1 ! vector opt. 156 ze3hdiv(ji,jj,jk) = ( e2u(ji ,jj) * e3u_n(ji ,jj,jk) * usd3d(ji ,jj,jk) & 157 & - e2u(ji-1,jj) * e3u_n(ji-1,jj,jk) * usd3d(ji-1,jj,jk) & 158 & + e1v(ji,jj ) * e3v_n(ji,jj ,jk) * vsd3d(ji,jj ,jk) & 159 & - e1v(ji,jj-1) * e3v_n(ji,jj-1,jk) * vsd3d(ji,jj-1,jk) ) * r1_e1e2t(ji,jj) 160 END DO 161 END DO 162 IF( .NOT. AGRIF_Root() ) THEN 163 IF( nbondi == 1 .OR. nbondi == 2 ) ze3hdiv(nlci-1, : ,jk) = 0._wp ! east 164 IF( nbondi == -1 .OR. nbondi == 2 ) ze3hdiv( 2 , : ,jk) = 0._wp ! west 165 IF( nbondj == 1 .OR. nbondj == 2 ) ze3hdiv( : ,nlcj-1,jk) = 0._wp ! north 166 IF( nbondj == -1 .OR. nbondj == 2 ) ze3hdiv( : , 2 ,jk) = 0._wp ! south 167 ENDIF 168 END DO 169 CALL lbc_lnk( ze3hdiv, 'T', 1. ) 170 ! 171 DO jk = jpkm1, 1, -1 !* integrate from the bottom the e3t * hor. divergence 172 wsd3d(:,:,jk) = wsd3d(:,:,jk+1) - ze3hdiv(:,:,jk) 173 END DO 181 174 #if defined key_bdy 182 wsd3d(:,:,jk) = wsd3d(:,:,jk) * bdytmask(:,:) 175 IF( lk_bdy ) THEN 176 DO jk = 1, jpkm1 177 wsd3d(:,:,jk) = wsd3d(:,:,jk) * bdytmask(:,:) 178 END DO 179 ENDIF 183 180 #endif 184 END DO 185 hdivn(:,:,:)=hdivdummy(:,:,:) 186 rotn(:,:,:)=rotdummy(:,:,:) 187 vn(:,:,:)=vdummy(:,:,:) 188 un(:,:,:)=udummy(:,:,:) 189 CALL wrk_dealloc( jpi,jpj,jpk,udummy,vdummy,hdivdummy,rotdummy) 181 CALL wrk_dealloc( jpi,jpj,jpk, zusd_t, zvsd_t, ze3hdiv ) 182 ! 190 183 ENDIF 184 ! 191 185 END SUBROUTINE sbc_wave 192 186
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