- Timestamp:
- 2016-11-30T17:56:53+01:00 (8 years ago)
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
branches/2016/dev_merge_2016/NEMOGCM/NEMO/OPA_SRC/SBC/sbcwave.F90
r6140 r7403 4 4 !! Wave module 5 5 !!====================================================================== 6 !! History : 3.3 ! 2011-09 (Adani M) Original code: Drag Coefficient 7 !! : 3.4 ! 2012-10 (Adani M) Stokes Drift 8 !!---------------------------------------------------------------------- 9 10 !!---------------------------------------------------------------------- 11 !! sbc_wave : read drag coefficient from wave model in netcdf files 6 !! History : 3.3 ! 2011-09 (M. Adani) Original code: Drag Coefficient 7 !! : 3.4 ! 2012-10 (M. Adani) Stokes Drift 8 !! 3.6 ! 2014-09 (E. Clementi,P. Oddo) New Stokes Drift Computation 9 !!---------------------------------------------------------------------- 10 11 !!---------------------------------------------------------------------- 12 !! sbc_wave : wave data from wave model in netcdf files 12 13 !!---------------------------------------------------------------------- 13 14 USE oce ! 14 USE sbc_oce 15 USE sbc_oce ! Surface boundary condition: ocean fields 15 16 USE bdy_oce ! 16 17 USE domvvl ! 17 !18 18 USE iom ! I/O manager library 19 19 USE in_out_manager ! I/O manager 20 20 USE lib_mpp ! distribued memory computing library 21 USE fldread 21 USE fldread ! read input fields 22 22 USE wrk_nemo ! 23 USE phycst ! physical constants 23 24 24 25 IMPLICIT NONE 25 26 PRIVATE 26 27 27 PUBLIC sbc_wave ! routine called in sbc_blk_core or sbc_blk_mfs 28 PUBLIC sbc_stokes, sbc_qiao ! routines called in sbccpl 29 PUBLIC sbc_wave ! routine called in sbcmod 28 30 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 34 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_cd ! structure of input fields (file informations, fields read) Drag Coefficient 35 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_sd ! structure of input fields (file informations, fields read) Stokes Drift 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 31 ! Variables checking if the wave parameters are coupled (if not, they are read from file) 32 LOGICAL, PUBLIC :: cpl_hsig=.FALSE. 33 LOGICAL, PUBLIC :: cpl_phioc=.FALSE. 34 LOGICAL, PUBLIC :: cpl_sdrftx=.FALSE. 35 LOGICAL, PUBLIC :: cpl_sdrfty=.FALSE. 36 LOGICAL, PUBLIC :: cpl_wper=.FALSE. 37 LOGICAL, PUBLIC :: cpl_wnum=.FALSE. 38 LOGICAL, PUBLIC :: cpl_wstrf=.FALSE. 39 LOGICAL, PUBLIC :: cpl_wdrag=.FALSE. 40 41 INTEGER :: jpfld ! number of files to read for stokes drift 42 INTEGER :: jp_usd ! index of stokes drift (i-component) (m/s) at T-point 43 INTEGER :: jp_vsd ! index of stokes drift (j-component) (m/s) at T-point 44 INTEGER :: jp_swh ! index of significant wave hight (m) at T-point 45 INTEGER :: jp_wmp ! index of mean wave period (s) at T-point 46 47 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_cd ! structure of input fields (file informations, fields read) Drag Coefficient 48 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_sd ! structure of input fields (file informations, fields read) Stokes Drift 49 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_wn ! structure of input fields (file informations, fields read) wave number for Qiao 50 TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_tauoc ! structure of input fields (file informations, fields read) normalized wave stress into the ocean 51 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: cdn_wave 52 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: swh,wmp, wnum 53 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: tauoc_wave 54 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: tsd2d 55 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: zusd2dt, zvsd2dt 56 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:,:) :: usd3d, vsd3d, wsd3d 57 REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:,:) :: usd3dt, vsd3dt 40 58 41 59 !! * Substitutions … … 48 66 CONTAINS 49 67 68 SUBROUTINE sbc_stokes( ) 69 !!--------------------------------------------------------------------- 70 !! *** ROUTINE sbc_stokes *** 71 !! 72 !! ** Purpose : compute the 3d Stokes Drift according to Breivik et al., 73 !! 2014 (DOI: 10.1175/JPO-D-14-0020.1) 74 !! 75 !! ** Method : - Calculate Stokes transport speed 76 !! - Calculate horizontal divergence 77 !! - Integrate the horizontal divergenze from the bottom 78 !! ** action 79 !!--------------------------------------------------------------------- 80 INTEGER :: jj,ji,jk 81 REAL(wp) :: ztransp, zfac, zsp0, zk, zus, zvs 82 REAL(wp), DIMENSION(:,:,:), POINTER :: ze3hdiv ! 3D workspace 83 !!--------------------------------------------------------------------- 84 ! 85 86 CALL wrk_alloc( jpi,jpj,jpk, ze3hdiv ) 87 DO jk = 1, jpk 88 DO jj = 1, jpj 89 DO ji = 1, jpi 90 ! On T grid 91 ! Stokes transport speed estimated from Hs and Tmean 92 ztransp = 2.0_wp*rpi*swh(ji,jj)**2.0_wp/(16.0_wp*MAX(wmp(ji,jj),0.0000001_wp)) 93 ! Stokes surface speed 94 zsp0 = SQRT( zusd2dt(ji,jj)**2 + zvsd2dt(ji,jj)**2) 95 ! Wavenumber scale 96 zk = ABS(zsp0)/MAX(ABS(5.97_wp*ztransp),0.0000001_wp) 97 ! Depth attenuation 98 zfac = EXP(-2.0_wp*zk*gdept_n(ji,jj,jk))/(1.0_wp+8.0_wp*zk*gdept_n(ji,jj,jk)) 99 ! 100 usd3dt(ji,jj,jk) = zfac * zusd2dt(ji,jj) * tmask(ji,jj,jk) 101 vsd3dt(ji,jj,jk) = zfac * zvsd2dt(ji,jj) * tmask(ji,jj,jk) 102 END DO 103 END DO 104 END DO 105 ! Into the U and V Grid 106 DO jk = 1, jpkm1 107 DO jj = 1, jpjm1 108 DO ji = 1, fs_jpim1 109 usd3d(ji,jj,jk) = 0.5 * umask(ji,jj,jk) * & 110 & ( usd3dt(ji,jj,jk) + usd3dt(ji+1,jj,jk) ) 111 vsd3d(ji,jj,jk) = 0.5 * vmask(ji,jj,jk) * & 112 & ( vsd3dt(ji,jj,jk) + vsd3dt(ji,jj+1,jk) ) 113 END DO 114 END DO 115 END DO 116 ! 117 CALL lbc_lnk( usd3d(:,:,:), 'U', -1. ) 118 CALL lbc_lnk( vsd3d(:,:,:), 'V', -1. ) 119 ! 120 DO jk = 1, jpkm1 ! Horizontal divergence 121 DO jj = 2, jpj 122 DO ji = fs_2, jpi 123 ze3hdiv(ji,jj,jk) = ( e2u(ji ,jj) * usd3d(ji ,jj,jk) & 124 & - e2u(ji-1,jj) * usd3d(ji-1,jj,jk) & 125 & + e1v(ji,jj ) * vsd3d(ji,jj ,jk) & 126 & - e1v(ji,jj-1) * vsd3d(ji,jj-1,jk) ) * r1_e1e2t(ji,jj) 127 END DO 128 END DO 129 END DO 130 ! 131 IF( .NOT. AGRIF_Root() ) THEN 132 IF( nbondi == 1 .OR. nbondi == 2 ) ze3hdiv(nlci-1, : ,:) = 0._wp ! east 133 IF( nbondi == -1 .OR. nbondi == 2 ) ze3hdiv( 2 , : ,:) = 0._wp ! west 134 IF( nbondj == 1 .OR. nbondj == 2 ) ze3hdiv( : ,nlcj-1,:) = 0._wp ! north 135 IF( nbondj == -1 .OR. nbondj == 2 ) ze3hdiv( : , 2 ,:) = 0._wp ! south 136 ENDIF 137 ! 138 CALL lbc_lnk( ze3hdiv, 'T', 1. ) 139 ! 140 DO jk = jpkm1, 1, -1 ! integrate from the bottom the e3t * hor. divergence 141 wsd3d(:,:,jk) = wsd3d(:,:,jk+1) - e3t_n(:,:,jk) * ze3hdiv(:,:,jk) 142 END DO 143 #if defined key_bdy 144 IF( lk_bdy ) THEN 145 DO jk = 1, jpkm1 146 wsd3d(:,:,jk) = wsd3d(:,:,jk) * bdytmask(:,:) 147 END DO 148 ENDIF 149 #endif 150 CALL wrk_dealloc( jpi,jpj,jpk, ze3hdiv ) 151 ! 152 END SUBROUTINE sbc_stokes 153 154 SUBROUTINE sbc_qiao 155 !!--------------------------------------------------------------------- 156 !! *** ROUTINE sbc_qiao *** 157 !! 158 !! ** Purpose : Qiao formulation for wave enhanced turbulence 159 !! 2010 (DOI: 10.1007/s10236-010-0326) 160 !! 161 !! ** Method : - 162 !! ** action 163 !!--------------------------------------------------------------------- 164 INTEGER :: jj, ji 165 166 ! Calculate the module of the stokes drift on T grid 167 !------------------------------------------------- 168 DO jj = 1, jpj 169 DO ji = 1, jpi 170 tsd2d(ji,jj) = SQRT( zusd2dt(ji,jj) * zusd2dt(ji,jj) + zvsd2dt(ji,jj) * zvsd2dt(ji,jj) ) 171 END DO 172 END DO 173 ! 174 END SUBROUTINE sbc_qiao 175 50 176 SUBROUTINE sbc_wave( kt ) 51 177 !!--------------------------------------------------------------------- 52 !! *** ROUTINE sbc_ apr***53 !! 54 !! ** Purpose : read drag coefficientfrom wave model in netcdf files.178 !! *** ROUTINE sbc_wave *** 179 !! 180 !! ** Purpose : read wave parameters from wave model in netcdf files. 55 181 !! 56 182 !! ** Method : - Read namelist namsbc_wave 57 183 !! - Read Cd_n10 fields in netcdf files 58 184 !! - Read stokes drift 2d in netcdf files 59 !! - Read wave number in netcdf files 60 !! - Compute 3d stokes drift using monochromatic 61 !! ** action : 62 !!--------------------------------------------------------------------- 63 INTEGER, INTENT( in ) :: kt ! ocean time step 185 !! - Read wave number in netcdf files 186 !! - Compute 3d stokes drift using Breivik et al.,2014 187 !! formulation 188 !! ** action 189 !!--------------------------------------------------------------------- 190 USE zdf_oce, ONLY : ln_zdfqiao 191 192 INTEGER, INTENT( in ) :: kt ! ocean time step 64 193 ! 65 194 INTEGER :: ierror ! return error code 66 INTEGER :: ifpr , jj,ji,jk67 INTEGER :: ios ! Local integer output status for namelist read68 TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read195 INTEGER :: ifpr 196 INTEGER :: ios ! Local integer output status for namelist read 197 ! 69 198 CHARACTER(len=100) :: cn_dir ! Root directory for location of drag coefficient files 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 199 TYPE(FLD_N), ALLOCATABLE, DIMENSION(:) :: slf_i ! array of namelist informations on the fields to read 200 TYPE(FLD_N) :: sn_cdg, sn_usd, sn_vsd, & 201 & sn_swh, sn_wmp, sn_wnum, sn_tauoc ! informations about the fields to be read 202 !! 203 NAMELIST/namsbc_wave/ sn_cdg, cn_dir, sn_usd, sn_vsd, sn_swh, sn_wmp, sn_wnum, sn_tauoc 74 204 !!--------------------------------------------------------------------- 75 205 ! … … 80 210 READ ( numnam_ref, namsbc_wave, IOSTAT = ios, ERR = 901) 81 211 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_wave in reference namelist', lwp ) 82 !212 83 213 REWIND( numnam_cfg ) ! Namelist namsbc_wave in configuration namelist : File for drag coeff. from wave model 84 214 READ ( numnam_cfg, namsbc_wave, IOSTAT = ios, ERR = 902 ) … … 86 216 IF(lwm) WRITE ( numond, namsbc_wave ) 87 217 ! 88 IF(lwp) THEN ! Control print89 WRITE(numout,*) ' Namelist namsbc_wave : surface wave setting'90 WRITE(numout,*) ' wave drag coefficient ln_cdgw = ', ln_cdgw91 WRITE(numout,*) ' wave stokes drift ln_sdw = ', ln_sdw92 ENDIF93 !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 !99 218 IF( ln_cdgw ) THEN 100 ALLOCATE( sf_cd(1), STAT=ierror ) !* allocate and fill sf_wave with sn_cdg 101 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) 102 ! 103 ALLOCATE( sf_cd(1)%fnow(jpi,jpj,1) ) 104 IF( sn_cdg%ln_tint ) ALLOCATE( sf_cd(1)%fdta(jpi,jpj,1,2) ) 105 CALL fld_fill( sf_cd, (/ sn_cdg /), cn_dir, 'sbc_wave', 'Wave module ', 'namsbc_wave' ) 219 IF( .NOT. cpl_wdrag ) THEN 220 ALLOCATE( sf_cd(1), STAT=ierror ) !* allocate and fill sf_wave with sn_cdg 221 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) 222 ! 223 ALLOCATE( sf_cd(1)%fnow(jpi,jpj,1) ) 224 IF( sn_cdg%ln_tint ) ALLOCATE( sf_cd(1)%fdta(jpi,jpj,1,2) ) 225 CALL fld_fill( sf_cd, (/ sn_cdg /), cn_dir, 'sbc_wave', 'Wave module ', 'namsbc_wave' ) 226 ENDIF 106 227 ALLOCATE( cdn_wave(jpi,jpj) ) 107 cdn_wave(:,:) = 0.0 108 ENDIF 228 ENDIF 229 230 IF( ln_tauoc ) THEN 231 IF( .NOT. cpl_wstrf ) THEN 232 ALLOCATE( sf_tauoc(1), STAT=ierror ) !* allocate and fill sf_wave with sn_tauoc 233 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) 234 ! 235 ALLOCATE( sf_tauoc(1)%fnow(jpi,jpj,1) ) 236 IF( sn_tauoc%ln_tint ) ALLOCATE( sf_tauoc(1)%fdta(jpi,jpj,1,2) ) 237 CALL fld_fill( sf_tauoc, (/ sn_tauoc /), cn_dir, 'sbc_wave', 'Wave module', 'namsbc_wave' ) 238 ENDIF 239 ALLOCATE( tauoc_wave(jpi,jpj) ) 240 ENDIF 241 109 242 IF( ln_sdw ) THEN 110 slf_i(jp_usd) = sn_usd ; slf_i(jp_vsd) = sn_vsd; slf_i(jp_wn) = sn_wn 111 ALLOCATE( sf_sd(3), STAT=ierror ) !* allocate and fill sf_wave with sn_cdg 112 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) 113 ! 114 DO ifpr= 1, jpfld 115 ALLOCATE( sf_sd(ifpr)%fnow(jpi,jpj,1) ) 116 IF( slf_i(ifpr)%ln_tint ) ALLOCATE( sf_sd(ifpr)%fdta(jpi,jpj,1,2) ) 117 END DO 118 CALL fld_fill( sf_sd, slf_i, cn_dir, 'sbc_wave', 'Wave module ', 'namsbc_wave' ) 119 ALLOCATE( usd2d(jpi,jpj) , vsd2d(jpi,jpj) , uwavenum(jpi,jpj) , vwavenum(jpi,jpj) ) 243 ! Find out how many fields have to be read from file if not coupled 244 jpfld=0 245 jp_usd=0; jp_vsd=0; jp_swh=0; jp_wmp=0 246 IF( .NOT. cpl_sdrftx ) THEN 247 jpfld=jpfld+1 248 jp_usd=jpfld 249 ENDIF 250 IF( .NOT. cpl_sdrfty ) THEN 251 jpfld=jpfld+1 252 jp_vsd=jpfld 253 ENDIF 254 IF( .NOT. cpl_hsig ) THEN 255 jpfld=jpfld+1 256 jp_swh=jpfld 257 ENDIF 258 IF( .NOT. cpl_wper ) THEN 259 jpfld=jpfld+1 260 jp_wmp=jpfld 261 ENDIF 262 263 ! Read from file only the non-coupled fields 264 IF( jpfld > 0 ) THEN 265 ALLOCATE( slf_i(jpfld) ) 266 IF( jp_usd > 0 ) slf_i(jp_usd) = sn_usd 267 IF( jp_vsd > 0 ) slf_i(jp_vsd) = sn_vsd 268 IF( jp_swh > 0 ) slf_i(jp_swh) = sn_swh 269 IF( jp_wmp > 0 ) slf_i(jp_wmp) = sn_wmp 270 ALLOCATE( sf_sd(jpfld), STAT=ierror ) !* allocate and fill sf_sd with stokes drift 271 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable to allocate sf_wave structure' ) 272 ! 273 DO ifpr= 1, jpfld 274 ALLOCATE( sf_sd(ifpr)%fnow(jpi,jpj,1) ) 275 IF( slf_i(ifpr)%ln_tint ) ALLOCATE( sf_sd(ifpr)%fdta(jpi,jpj,1,2) ) 276 END DO 277 278 CALL fld_fill( sf_sd, slf_i, cn_dir, 'sbc_wave', 'Wave module ', 'namsbc_wave' ) 279 ENDIF 120 280 ALLOCATE( usd3d(jpi,jpj,jpk),vsd3d(jpi,jpj,jpk),wsd3d(jpi,jpj,jpk) ) 121 usd3d(:,:,:) = 0._wp ; usd2d(:,:) = 0._wp ; uwavenum(:,:) = 0._wp 122 vsd3d(:,:,:) = 0._wp ; vsd2d(:,:) = 0._wp ; vwavenum(:,:) = 0._wp 281 ALLOCATE( usd3dt(jpi,jpj,jpk),vsd3dt(jpi,jpj,jpk) ) 282 ALLOCATE( swh(jpi,jpj), wmp(jpi,jpj) ) 283 ALLOCATE( zusd2dt(jpi,jpj), zvsd2dt(jpi,jpj) ) 284 usd3d(:,:,:) = 0._wp 285 vsd3d(:,:,:) = 0._wp 123 286 wsd3d(:,:,:) = 0._wp 124 ENDIF 125 ENDIF 126 ! 127 IF( ln_cdgw ) THEN !== Neutral drag coefficient ==! 287 IF( ln_zdfqiao ) THEN !== Vertical mixing enhancement using Qiao,2010 ==! 288 IF( .NOT. cpl_wnum ) THEN 289 ALLOCATE( sf_wn(1), STAT=ierror ) !* allocate and fill sf_wave with sn_wnum 290 IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_wave: unable toallocate sf_wave structure' ) 291 ALLOCATE( sf_wn(1)%fnow(jpi,jpj,1) ) 292 IF( sn_wnum%ln_tint ) ALLOCATE( sf_wn(1)%fdta(jpi,jpj,1,2) ) 293 CALL fld_fill( sf_wn, (/ sn_wnum /), cn_dir, 'sbc_wave', 'Wave module', 'namsbc_wave' ) 294 ENDIF 295 ALLOCATE( wnum(jpi,jpj),tsd2d(jpi,jpj) ) 296 ENDIF 297 ENDIF 298 ENDIF 299 ! 300 IF( ln_cdgw .AND. .NOT. cpl_wdrag ) THEN !== Neutral drag coefficient ==! 128 301 CALL fld_read( kt, nn_fsbc, sf_cd ) ! read from external forcing 129 302 cdn_wave(:,:) = sf_cd(1)%fnow(:,:,1) 130 303 ENDIF 131 ! 132 IF( ln_sdw ) THEN !== Computation of the 3d Stokes Drift ==! 304 305 IF( ln_tauoc .AND. .NOT. cpl_wstrf ) THEN !== Wave induced stress ==! 306 CALL fld_read( kt, nn_fsbc, sf_tauoc ) !* read wave norm stress from external forcing 307 tauoc_wave(:,:) = sf_tauoc(1)%fnow(:,:,1) 308 ENDIF 309 310 IF( ln_sdw ) THEN !== Computation of the 3d Stokes Drift ==! 133 311 ! 134 CALL wrk_alloc( jpi,jpj,jpk, zusd_t, zvsd_t, ze3hdiv ) 312 ! Read from file only if the field is not coupled 313 IF( jpfld > 0 ) THEN 314 CALL fld_read( kt, nn_fsbc, sf_sd ) !* read wave parameters from external forcing 315 IF( jp_swh > 0 ) swh(:,:) = sf_sd(jp_swh)%fnow(:,:,1) ! significant wave height 316 IF( jp_wmp > 0 ) wmp(:,:) = sf_sd(jp_wmp)%fnow(:,:,1) ! wave mean period 317 IF( jp_usd > 0 ) zusd2dt(:,:) = sf_sd(jp_usd)%fnow(:,:,1) ! 2D zonal Stokes Drift at T point 318 IF( jp_vsd > 0 ) zvsd2dt(:,:) = sf_sd(jp_vsd)%fnow(:,:,1) ! 2D meridional Stokes Drift at T point 319 ENDIF 135 320 ! 136 CALL fld_read( kt, nn_fsbc, sf_sd ) !* read drag coefficient from external forcing 321 ! Read also wave number if needed, so that it is available in coupling routines 322 IF( ln_zdfqiao .AND. .NOT. cpl_wnum ) THEN 323 CALL fld_read( kt, nn_fsbc, sf_wn ) !* read wave parameters from external forcing 324 wnum(:,:) = sf_wn(1)%fnow(:,:,1) 325 ENDIF 326 327 !== Computation of the 3d Stokes Drift according to Breivik et al.,2014 328 !(DOI: 10.1175/JPO-D-14-0020.1)==! 137 329 ! 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 148 END DO 149 END DO 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 174 #if defined key_bdy 175 IF( lk_bdy ) THEN 176 DO jk = 1, jpkm1 177 wsd3d(:,:,jk) = wsd3d(:,:,jk) * bdytmask(:,:) 178 END DO 179 ENDIF 180 #endif 181 CALL wrk_dealloc( jpi,jpj,jpk, zusd_t, zvsd_t, ze3hdiv ) 182 ! 330 ! Calculate only if no necessary fields are coupled, if not calculate later after coupling 331 IF( jpfld == 4 ) THEN 332 CALL sbc_stokes() 333 IF( ln_zdfqiao .AND. .NOT. cpl_wnum ) THEN 334 CALL sbc_qiao() 335 ENDIF 336 ENDIF 183 337 ENDIF 184 338 !
Note: See TracChangeset
for help on using the changeset viewer.
