| 1 | MODULE ocesbc |
|---|
| 2 | !!====================================================================== |
|---|
| 3 | !! *** MODULE ocesbc *** |
|---|
| 4 | !! Ocean surface boundary conditions |
|---|
| 5 | !!====================================================================== |
|---|
| 6 | |
|---|
| 7 | !!---------------------------------------------------------------------- |
|---|
| 8 | !! oce_sbc : ??? |
|---|
| 9 | !! oce_sbc_dmp : ??? |
|---|
| 10 | !!---------------------------------------------------------------------- |
|---|
| 11 | !! * Modules used |
|---|
| 12 | USE oce ! dynamics and tracers variables |
|---|
| 13 | USE dom_oce ! ocean space domain variables |
|---|
| 14 | USE cpl_oce ! coupled ocean-atmosphere variables |
|---|
| 15 | USE ice_oce |
|---|
| 16 | USE blk_oce |
|---|
| 17 | USE flx_oce |
|---|
| 18 | USE phycst ! Define parameters for the routines |
|---|
| 19 | USE taumod |
|---|
| 20 | USE flxmod |
|---|
| 21 | USE flxrnf |
|---|
| 22 | USE tradmp ! damping salinity trend |
|---|
| 23 | USE dtatem |
|---|
| 24 | USE dtasal |
|---|
| 25 | USE ocfzpt |
|---|
| 26 | USE lbclnk |
|---|
| 27 | USE lib_mpp |
|---|
| 28 | USE in_out_manager ! I/O manager |
|---|
| 29 | |
|---|
| 30 | IMPLICIT NONE |
|---|
| 31 | PRIVATE |
|---|
| 32 | |
|---|
| 33 | !! * Accessibility |
|---|
| 34 | PUBLIC oce_sbc ! routine called by step |
|---|
| 35 | |
|---|
| 36 | !! * Shared module variables |
|---|
| 37 | REAL(wp), PUBLIC :: & !: |
|---|
| 38 | aplus, aminus, & !: |
|---|
| 39 | empold = 0.e0 !: current year freshwater budget correction |
|---|
| 40 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 41 | qt , & !: total surface heat flux (w/m2) |
|---|
| 42 | q , & !: surface heat flux (w/m2) |
|---|
| 43 | qsr , & !: solar radiation (w/m2) |
|---|
| 44 | emp , & !: evaporation minus precipitation (kg/m2/s = mm/s) |
|---|
| 45 | emps, & !: evaporation - precipitation (free surface) |
|---|
| 46 | qrp , & !: heat flux damping (w/m2) |
|---|
| 47 | erp !: evaporation damping (kg/m2/s = mm/s) |
|---|
| 48 | #if defined key_dynspg_fsc |
|---|
| 49 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
|---|
| 50 | dmp !: internal dampind term |
|---|
| 51 | #endif |
|---|
| 52 | |
|---|
| 53 | # include "domzgr_substitute.h90" |
|---|
| 54 | # include "vectopt_loop_substitute.h90" |
|---|
| 55 | !!---------------------------------------------------------------------- |
|---|
| 56 | !! LIM 2.0 , UCL-LODYC-IPSL (2003) |
|---|
| 57 | !!---------------------------------------------------------------------- |
|---|
| 58 | |
|---|
| 59 | CONTAINS |
|---|
| 60 | |
|---|
| 61 | #if defined key_ice_lim |
|---|
| 62 | !!---------------------------------------------------------------------- |
|---|
| 63 | !! 'key_ice_lim' : LIM sea-ice model |
|---|
| 64 | !!---------------------------------------------------------------------- |
|---|
| 65 | # if defined key_coupled |
|---|
| 66 | !!---------------------------------------------------------------------- |
|---|
| 67 | !! 'key_coupled' : Coupled Ocean/Atmosphere |
|---|
| 68 | !!---------------------------------------------------------------------- |
|---|
| 69 | |
|---|
| 70 | SUBROUTINE oce_sbc( kt ) |
|---|
| 71 | !!--------------------------------------------------------------------- |
|---|
| 72 | !! *** ROUTINE oce_sbc *** |
|---|
| 73 | !! |
|---|
| 74 | !! ** Purpose : Ocean surface boundaries conditions with |
|---|
| 75 | !! Louvain la Neuve Sea Ice Model in coupled mode |
|---|
| 76 | !! |
|---|
| 77 | !! History : |
|---|
| 78 | !! 1.0 ! 00-10 (O. Marti) Original code |
|---|
| 79 | !! 2.0 ! 02-12 (G. Madec) F90: Free form and module |
|---|
| 80 | !!---------------------------------------------------------------------- |
|---|
| 81 | !! * Arguments |
|---|
| 82 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 83 | |
|---|
| 84 | !! * Local declarations |
|---|
| 85 | INTEGER :: ji, jj ! dummy loop indices |
|---|
| 86 | REAL(wp) :: ztx, ztaux, zty, ztauy, ztrp |
|---|
| 87 | REAL(wp) :: ztdta, ztgel, zqrp |
|---|
| 88 | !!---------------------------------------------------------------------- |
|---|
| 89 | |
|---|
| 90 | ! 1. initialization to zero at kt = nit000 |
|---|
| 91 | ! --------------------------------------- |
|---|
| 92 | |
|---|
| 93 | IF( kt == nit000 ) THEN |
|---|
| 94 | qsr (:,:) = 0.e0 |
|---|
| 95 | freeze(:,:) = 0.e0 |
|---|
| 96 | qt (:,:) = 0.e0 |
|---|
| 97 | q (:,:) = 0.e0 |
|---|
| 98 | qrp (:,:) = 0.e0 |
|---|
| 99 | emp (:,:) = 0.e0 |
|---|
| 100 | emps (:,:) = 0.e0 |
|---|
| 101 | erp (:,:) = 0.e0 |
|---|
| 102 | #if defined key_dynspg_fsc |
|---|
| 103 | dmp (:,:) = 0.e0 |
|---|
| 104 | #endif |
|---|
| 105 | ENDIF |
|---|
| 106 | |
|---|
| 107 | IF( MOD( kt-1, nfice ) == 0 ) THEN |
|---|
| 108 | |
|---|
| 109 | CALL oce_sbc_dmp ! Computation of internal and evaporation damping terms |
|---|
| 110 | |
|---|
| 111 | ! Surface heat flux (W/m2) |
|---|
| 112 | ! ----------------------- |
|---|
| 113 | ztrp = 0.e0 |
|---|
| 114 | |
|---|
| 115 | ! restoring heat flux |
|---|
| 116 | DO jj = 1, jpj |
|---|
| 117 | DO ji = 1, jpi |
|---|
| 118 | ztgel = fzptn(ji,jj) |
|---|
| 119 | #if defined key_dtasst |
|---|
| 120 | ztdta = MAX( sst(ji,jj), ztgel ) |
|---|
| 121 | #else |
|---|
| 122 | ztdta = MAX( t_dta(ji,jj,1), ztgel ) |
|---|
| 123 | #endif |
|---|
| 124 | zqrp = ztrp * ( tb(ji,jj,1) - ztdta ) |
|---|
| 125 | |
|---|
| 126 | qrp(ji,jj) = (1.0-freeze(ji,jj) ) * zqrp |
|---|
| 127 | END DO |
|---|
| 128 | END DO |
|---|
| 129 | |
|---|
| 130 | ! non solar heat flux + solar flux + restoring |
|---|
| 131 | q (:,:) = fnsolar(:,:) + fsolar(:,:) + qrp(:,:) |
|---|
| 132 | qt (:,:) = q(:,:) |
|---|
| 133 | |
|---|
| 134 | ! solar flux |
|---|
| 135 | qsr(:,:) = fsolar(:,:) |
|---|
| 136 | |
|---|
| 137 | #if defined key_dynspg_fsc |
|---|
| 138 | ! total concentration/dilution effect (use on SSS) |
|---|
| 139 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) |
|---|
| 140 | |
|---|
| 141 | ! total volume flux (use on sea-surface height) |
|---|
| 142 | emp (:,:) = fmass(:,:) - dmp(:,:) + runoff(:,:) + erp(:,:) |
|---|
| 143 | #else |
|---|
| 144 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
|---|
| 145 | ! freshwater flux |
|---|
| 146 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) |
|---|
| 147 | emp (:,:) = emps(:,:) |
|---|
| 148 | #endif |
|---|
| 149 | |
|---|
| 150 | DO jj = 1, jpjm1 |
|---|
| 151 | DO ji = 1, fs_jpim1 ! vertor opt. |
|---|
| 152 | ztx = 0.5 * ( freeze(ji+1,jj) + freeze(ji+1,jj+1) ) |
|---|
| 153 | ztaux = 0.5 * ( ftaux (ji+1,jj) + ftaux (ji+1,jj+1) ) |
|---|
| 154 | taux(ji,jj) = (1.0-ztx) * taux(ji,jj) + ztx * ztaux |
|---|
| 155 | |
|---|
| 156 | zty = 0.5 * ( freeze(ji,jj+1) + freeze(ji+1,jj+1) ) |
|---|
| 157 | ztauy = 0.5 * ( ftauy (ji,jj+1) + ftauy (ji+1,jj+1) ) |
|---|
| 158 | tauy(ji,jj) = (1.0-zty) * tauy(ji,jj) + zty * ztauy |
|---|
| 159 | END DO |
|---|
| 160 | END DO |
|---|
| 161 | CALL lbc_lnk( taux, 'U', -1. ) |
|---|
| 162 | CALL lbc_lnk( tauy, 'V', -1. ) |
|---|
| 163 | |
|---|
| 164 | ! Re-initialization of fluxes |
|---|
| 165 | sst_io(:,:) = 0.e0 |
|---|
| 166 | sss_io(:,:) = 0.e0 |
|---|
| 167 | u_io (:,:) = 0.e0 |
|---|
| 168 | v_io (:,:) = 0.e0 |
|---|
| 169 | gtaux (:,:) = 0.e0 |
|---|
| 170 | gtauy (:,:) = 0.e0 |
|---|
| 171 | |
|---|
| 172 | ENDIF |
|---|
| 173 | |
|---|
| 174 | END SUBROUTINE oce_sbc |
|---|
| 175 | |
|---|
| 176 | # elif defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
|---|
| 177 | !!---------------------------------------------------------------------- |
|---|
| 178 | !! 'key_ice_lim' with LIM sea-ice model |
|---|
| 179 | !!---------------------------------------------------------------------- |
|---|
| 180 | |
|---|
| 181 | SUBROUTINE oce_sbc( kt ) |
|---|
| 182 | !!--------------------------------------------------------------------- |
|---|
| 183 | !! *** ROUTINE oce_sbc *** |
|---|
| 184 | !! |
|---|
| 185 | !! ** Purpose : - Ocean surface boundary conditions with LIM sea-ice |
|---|
| 186 | !! model in forced mode using bulk formulea |
|---|
| 187 | !! |
|---|
| 188 | !! History : |
|---|
| 189 | !! 1.0 ! 99-11 (M. Imbard) Original code |
|---|
| 190 | !! ! 01-03 (D. Ludicone, E. Durand, G. Madec) free surf. |
|---|
| 191 | !! 2.0 ! 02-09 (G. Madec, C. Ethe) F90: Free form and module |
|---|
| 192 | !!---------------------------------------------------------------------- |
|---|
| 193 | !! * arguments |
|---|
| 194 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 195 | |
|---|
| 196 | !! * Local declarations |
|---|
| 197 | INTEGER :: ji, jj ! dummy loop indices |
|---|
| 198 | REAL(wp) :: ztx, ztaux, zty, ztauy |
|---|
| 199 | !!---------------------------------------------------------------------- |
|---|
| 200 | |
|---|
| 201 | ! 1. initialization to zero at kt = nit000 |
|---|
| 202 | ! --------------------------------------- |
|---|
| 203 | |
|---|
| 204 | IF( kt == nit000 ) THEN |
|---|
| 205 | qsr (:,:) = 0.e0 |
|---|
| 206 | qt (:,:) = 0.e0 |
|---|
| 207 | q (:,:) = 0.e0 |
|---|
| 208 | qrp (:,:) = 0.e0 |
|---|
| 209 | emp (:,:) = 0.e0 |
|---|
| 210 | emps (:,:) = 0.e0 |
|---|
| 211 | erp (:,:) = 0.e0 |
|---|
| 212 | #if defined key_dynspg_fsc |
|---|
| 213 | dmp (:,:) = 0.e0 |
|---|
| 214 | #endif |
|---|
| 215 | ENDIF |
|---|
| 216 | |
|---|
| 217 | IF( MOD( kt-1, nfice ) == 0 ) THEN |
|---|
| 218 | |
|---|
| 219 | CALL oce_sbc_dmp ! Computation of internal and evaporation damping terms |
|---|
| 220 | |
|---|
| 221 | ! Surface Ocean fluxes |
|---|
| 222 | ! ==================== |
|---|
| 223 | |
|---|
| 224 | ! Surface heat flux (W/m2) |
|---|
| 225 | ! ----------------- |
|---|
| 226 | |
|---|
| 227 | q (:,:) = fnsolar(:,:) + fsolar(:,:) ! non solar heat flux + solar flux |
|---|
| 228 | qt (:,:) = q(:,:) |
|---|
| 229 | qsr (:,:) = fsolar(:,:) ! solar flux |
|---|
| 230 | |
|---|
| 231 | #if defined key_dynspg_fsc |
|---|
| 232 | ! total concentration/dilution effect (use on SSS) |
|---|
| 233 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) + empold |
|---|
| 234 | |
|---|
| 235 | ! total volume flux (use on sea-surface height) |
|---|
| 236 | emp (:,:) = fmass(:,:) - dmp(:,:) + runoff(:,:) + erp(:,:) + empold |
|---|
| 237 | #else |
|---|
| 238 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
|---|
| 239 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) ! freshwater flux |
|---|
| 240 | emp (:,:) = emps(:,:) |
|---|
| 241 | |
|---|
| 242 | #endif |
|---|
| 243 | |
|---|
| 244 | ! Surface stress |
|---|
| 245 | ! -------------- |
|---|
| 246 | |
|---|
| 247 | ! update the stress beloww sea-ice area |
|---|
| 248 | DO jj = 1, jpjm1 |
|---|
| 249 | DO ji = 1, fs_jpim1 ! vertor opt. |
|---|
| 250 | ztx = MAX( freezn(ji,jj), freezn(ji,jj+1) ) ! ice/ocean indicator at U- and V-points |
|---|
| 251 | zty = MAX( freezn(ji,jj), freezn(ji+1,jj) ) |
|---|
| 252 | ztaux = 0.5 *( ftaux(ji+1,jj) + ftaux(ji+1,jj+1) ) ! ice-ocean stress at U- and V-points |
|---|
| 253 | ztauy = 0.5 *( ftauy(ji,jj+1) + ftauy(ji+1,jj+1) ) |
|---|
| 254 | taux(ji,jj) = (1.-ztx) * taux(ji,jj) + ztx * ztaux ! stress at the ocean surface |
|---|
| 255 | tauy(ji,jj) = (1.-zty) * tauy(ji,jj) + zty * ztauy |
|---|
| 256 | END DO |
|---|
| 257 | END DO |
|---|
| 258 | |
|---|
| 259 | ! boundary condition on the stress (taux,tauy) |
|---|
| 260 | CALL lbc_lnk( taux, 'U', -1. ) |
|---|
| 261 | CALL lbc_lnk( tauy, 'V', -1. ) |
|---|
| 262 | |
|---|
| 263 | ! Re-initialization of fluxes |
|---|
| 264 | sst_io(:,:) = 0.e0 |
|---|
| 265 | sss_io(:,:) = 0.e0 |
|---|
| 266 | u_io (:,:) = 0.e0 |
|---|
| 267 | v_io (:,:) = 0.e0 |
|---|
| 268 | |
|---|
| 269 | ENDIF |
|---|
| 270 | |
|---|
| 271 | END SUBROUTINE oce_sbc |
|---|
| 272 | |
|---|
| 273 | # else |
|---|
| 274 | !!---------------------------------------------------------------------- |
|---|
| 275 | !! Error option LIM sea-ice model requires bulk formulea |
|---|
| 276 | !!---------------------------------------------------------------------- |
|---|
| 277 | This line forced a compilation error |
|---|
| 278 | # endif |
|---|
| 279 | |
|---|
| 280 | #else |
|---|
| 281 | !!---------------------------------------------------------------------- |
|---|
| 282 | !! Default option NO LIM sea-ice model |
|---|
| 283 | !!---------------------------------------------------------------------- |
|---|
| 284 | # if defined key_coupled |
|---|
| 285 | !!---------------------------------------------------------------------- |
|---|
| 286 | !! 'key_coupled' : Coupled Ocean/Atmosphere |
|---|
| 287 | !!---------------------------------------------------------------------- |
|---|
| 288 | |
|---|
| 289 | SUBROUTINE oce_sbc( kt ) |
|---|
| 290 | !!--------------------------------------------------------------------- |
|---|
| 291 | !! *** ROUTINE oce_sbc *** |
|---|
| 292 | !! |
|---|
| 293 | !! ** Purpose : Ocean surface boundaries conditions in |
|---|
| 294 | !! coupled ocean/atmosphere case without sea-ice |
|---|
| 295 | !! |
|---|
| 296 | !! History : |
|---|
| 297 | !! 1.0 ! 00-10 (O. Marti) Original code |
|---|
| 298 | !! 2.0 ! 02-12 (G. Madec) F90: Free form and module |
|---|
| 299 | !!---------------------------------------------------------------------- |
|---|
| 300 | !! * Modules used |
|---|
| 301 | USE cpl_oce |
|---|
| 302 | |
|---|
| 303 | !! * Arguments |
|---|
| 304 | INTEGER, INTENT( in ) :: kt ! ocean time step index |
|---|
| 305 | |
|---|
| 306 | !! * Local declarations |
|---|
| 307 | INTEGER :: ji, jj, jf ! dummy loop indices |
|---|
| 308 | REAL(wp) :: ztrp, ztgel, & ! temporary scalars |
|---|
| 309 | zice, zhemis, zqrp, zqri, & ! " " |
|---|
| 310 | zq, zqi, zerp, ze, zei, zro ! " " |
|---|
| 311 | !!---------------------------------------------------------------------- |
|---|
| 312 | |
|---|
| 313 | ! Compute fluxes |
|---|
| 314 | ! -------------- |
|---|
| 315 | |
|---|
| 316 | ! constant initialization |
|---|
| 317 | ztrp = -40. ! restoring term for temperature (w/m2/k) |
|---|
| 318 | |
|---|
| 319 | DO jj = 1, jpj |
|---|
| 320 | DO ji = 1, jpi |
|---|
| 321 | |
|---|
| 322 | ztgel = fzptn(ji,jj) ! local freezing temperature |
|---|
| 323 | |
|---|
| 324 | ! opa model ice freeze() |
|---|
| 325 | |
|---|
| 326 | zice = tmask(ji,jj,1) |
|---|
| 327 | IF( tn(ji,jj,1) >= ztgel ) zice = 0. |
|---|
| 328 | freeze(ji,jj) = zice |
|---|
| 329 | |
|---|
| 330 | ! hemisphere indicator (=1 north, =-1 south) |
|---|
| 331 | |
|---|
| 332 | zhemis = float(isign(1, mjg(jj)-(jpjglo/2+1))) |
|---|
| 333 | |
|---|
| 334 | ! a) net downward radiative flux qsr() |
|---|
| 335 | ! - AGCM qsrc if no ice |
|---|
| 336 | ! - zero under ice (zice=1) |
|---|
| 337 | |
|---|
| 338 | qsr(ji,jj) = (1.-zice)*qsrc(ji,jj)*tmask(ji,jj,1) |
|---|
| 339 | |
|---|
| 340 | ! b) heat flux damping term qrp() |
|---|
| 341 | ! - no damping if no ice (zice=0) |
|---|
| 342 | ! - gamma*min(0,t-tgel) if ice (zice=1) |
|---|
| 343 | |
|---|
| 344 | zqrp = 0. |
|---|
| 345 | zqri = ztrp*MIN( 0., tb(ji,jj,1)-ztgel ) |
|---|
| 346 | qrp(ji,jj) = ( ( 1. - zice ) * zqrp + zice * zqri ) * tmask(ji,jj,1) |
|---|
| 347 | |
|---|
| 348 | |
|---|
| 349 | ! c) net downward heat flux q() = q0 + qrp() |
|---|
| 350 | ! for q0 |
|---|
| 351 | ! - AGCM qc if no ice (zice=0) |
|---|
| 352 | ! - -2 watt/m2 (arctic) or -4 watt/m2 (antarctic) if ice (zice=1) |
|---|
| 353 | zq = qc(ji,jj) |
|---|
| 354 | zqi = -3. + zhemis |
|---|
| 355 | qt(ji,jj) = ( (1.-zice) * zq + zice * zqi ) * tmask(ji,jj,1) + qrp(ji,jj) |
|---|
| 356 | q (ji,jj) = qt(ji,jj) |
|---|
| 357 | |
|---|
| 358 | ! d) water flux damping term erp() |
|---|
| 359 | ! - no damping |
|---|
| 360 | zerp = 0. |
|---|
| 361 | erp(ji,jj) = zerp |
|---|
| 362 | |
|---|
| 363 | ! e) net upward water flux e() = eo + runoff() + erp() |
|---|
| 364 | ! for e0 |
|---|
| 365 | ! - AGCM if no ice (zice=0) |
|---|
| 366 | ! - 1.mm/day if climatological and opa ice (zice=1) |
|---|
| 367 | ze = ec(ji,jj) |
|---|
| 368 | zei = 1./rday |
|---|
| 369 | zro = runoff(ji,jj) |
|---|
| 370 | emp(ji,jj) = ( ( 1. - zice ) * ze + zice * zei + zro ) * tmask(ji,jj,1) + erp(ji,jj) |
|---|
| 371 | |
|---|
| 372 | END DO |
|---|
| 373 | END DO |
|---|
| 374 | |
|---|
| 375 | END SUBROUTINE oce_sbc |
|---|
| 376 | |
|---|
| 377 | # elif defined key_flx_bulk_monthly || defined key_flx_bulk_daily || defined key_flx_forced_daily |
|---|
| 378 | !!------------------------------------------------------------------------- |
|---|
| 379 | !! 'key_flx_bulk_monthly' or 'key_flx_bulk_daily' or bulk formulea |
|---|
| 380 | !! 'key_flx_forced_daily' or no bulk case |
|---|
| 381 | !!------------------------------------------------------------------------- |
|---|
| 382 | |
|---|
| 383 | SUBROUTINE oce_sbc( kt ) |
|---|
| 384 | !!--------------------------------------------------------------------- |
|---|
| 385 | !! *** ROUTINE oce_sbc *** |
|---|
| 386 | !! |
|---|
| 387 | !! ** Purpose : Ocean surface boundary conditions in forced mode |
|---|
| 388 | !! using either flux or bulk formulation. |
|---|
| 389 | !! |
|---|
| 390 | !! History : |
|---|
| 391 | !! 1.0 ! 99-11 (M. Imbard) Original code |
|---|
| 392 | !! ! 01-03 (D. Ludicone, E. Durand, G. Madec) free surf. |
|---|
| 393 | !! 2.0 ! 02-09 (G. Madec, C. Ethe) F90: Free form and module |
|---|
| 394 | !!---------------------------------------------------------------------- |
|---|
| 395 | !! * Modules used |
|---|
| 396 | USE daymod |
|---|
| 397 | #if ! defined key_dtasst |
|---|
| 398 | USE dtasst, ONLY : rclice |
|---|
| 399 | #endif |
|---|
| 400 | #if defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
|---|
| 401 | USE blk_oce |
|---|
| 402 | #endif |
|---|
| 403 | #if defined key_flx_forced_daily |
|---|
| 404 | USE flx_oce |
|---|
| 405 | #endif |
|---|
| 406 | |
|---|
| 407 | !! * arguments |
|---|
| 408 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 409 | |
|---|
| 410 | !! * local declarations |
|---|
| 411 | INTEGER :: ji, jj ! dummy loop arguments |
|---|
| 412 | INTEGER :: i15, ifreq ! |
|---|
| 413 | REAL(wp) :: zxy |
|---|
| 414 | REAL(wp) :: zsice, zqri, zqrp, ztdta, zqrj |
|---|
| 415 | REAL(wp) :: zq, zqi, zhemis, ztrp |
|---|
| 416 | REAL(wp), DIMENSION(jpi,jpj) :: zeri, zerps, ziclim |
|---|
| 417 | REAL(wp), DIMENSION(jpi,jpj) :: zqt, zqsr, zemp |
|---|
| 418 | !!---------------------------------------------------------------------- |
|---|
| 419 | |
|---|
| 420 | ! 1. initialization to zero at kt = nit000 |
|---|
| 421 | ! --------------------------------------- |
|---|
| 422 | |
|---|
| 423 | IF( kt == nit000 ) THEN |
|---|
| 424 | qsr (:,:) = 0.e0 |
|---|
| 425 | freeze (:,:) = 0.e0 |
|---|
| 426 | qt (:,:) = 0.e0 |
|---|
| 427 | q (:,:) = 0.e0 |
|---|
| 428 | qrp (:,:) = 0.e0 |
|---|
| 429 | emp (:,:) = 0.e0 |
|---|
| 430 | emps (:,:) = 0.e0 |
|---|
| 431 | erp (:,:) = 0.e0 |
|---|
| 432 | #if defined key_dynspg_fsc |
|---|
| 433 | dmp (:,:) = 0.e0 |
|---|
| 434 | #endif |
|---|
| 435 | ENDIF |
|---|
| 436 | |
|---|
| 437 | #if defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
|---|
| 438 | ifreq = nfbulk |
|---|
| 439 | zqt (:,:) = qsr_oce(:,:) + qnsr_oce(:,:) |
|---|
| 440 | zqsr(:,:) = qsr_oce(:,:) |
|---|
| 441 | zemp(:,:) = evap(:,:) - tprecip(:,:) |
|---|
| 442 | #endif |
|---|
| 443 | |
|---|
| 444 | #if defined key_flx_forced_daily |
|---|
| 445 | ifreq = 1 |
|---|
| 446 | zqt (:,:) = p_qt (:,:) |
|---|
| 447 | zqsr(:,:) = p_qsr(:,:) |
|---|
| 448 | zemp(:,:) = p_emp(:,:) |
|---|
| 449 | #endif |
|---|
| 450 | |
|---|
| 451 | IF( MOD( kt-1, ifreq) == 0 ) THEN |
|---|
| 452 | ! Computation of internal and evaporation damping terms |
|---|
| 453 | CALL oce_sbc_dmp |
|---|
| 454 | |
|---|
| 455 | ztrp = -40. ! restoring terme for temperature (w/m2/k) |
|---|
| 456 | zsice = - 0.04 / 0.8 ! ratio of isohaline compressibility over isotherme compressibility |
|---|
| 457 | ! ( d rho / dt ) / ( d rho / ds ) ( s = 34, t = -1.8 ) |
|---|
| 458 | ! Flux computation |
|---|
| 459 | DO jj = 1, jpj |
|---|
| 460 | DO ji = 1, jpi |
|---|
| 461 | ! climatological ice |
|---|
| 462 | #if defined key_dtasst |
|---|
| 463 | ziclim(ji,jj) = FLOAT( NINT( rclice(ji,jj,1) ) ) |
|---|
| 464 | #else |
|---|
| 465 | ! tested only with key key_dtasst (A. Lazar 07/2001) |
|---|
| 466 | ! this loop in CASE of interpolation of monthly rclice |
|---|
| 467 | i15 = INT( 2.* FLOAT(nday) / (FLOAT( nobis(nmonth) ) + 0.5) ) |
|---|
| 468 | zxy = FLOAT(nday) / FLOAT(nobis(nmonth)) + 0.5 - i15 |
|---|
| 469 | ziclim(ji,jj) = FLOAT( NINT( (1-zxy) * rclice(ji,jj,1) + zxy * rclice(ji,jj,2) ) ) |
|---|
| 470 | #endif |
|---|
| 471 | |
|---|
| 472 | ! avoid surfreezing point |
|---|
| 473 | tn(ji,jj,1) = MAX( tn(ji,jj,1), fzptn(ji,jj) ) |
|---|
| 474 | |
|---|
| 475 | ! hemisphere indicator (=1 north, =-1 south) |
|---|
| 476 | zhemis = FLOAT( isign(1, mjg(jj) - (jpjdta/2+1) ) ) |
|---|
| 477 | |
|---|
| 478 | ! restoring temperature (ztdta >= to local freezing temperature) |
|---|
| 479 | #if defined key_dtasst |
|---|
| 480 | ztdta = MAX( sst(ji,jj), fzptn(ji,jj) ) |
|---|
| 481 | #else |
|---|
| 482 | ztdta = MAX( t_dta(ji,jj,1), fzptn(ji,jj) ) |
|---|
| 483 | #endif |
|---|
| 484 | |
|---|
| 485 | ! a) net downward radiative flux qsr() |
|---|
| 486 | qsr(ji,jj) = zqsr(ji,jj) * tmask(ji,jj,1) |
|---|
| 487 | |
|---|
| 488 | ! b) heat flux damping term qrp() |
|---|
| 489 | ! - gamma*(t-tlevitus) if no climatological ice (ziclim=0) |
|---|
| 490 | ! - gamma*(t-(tgel-1.)) if climatological ice and no opa ice (ziclim=1 zicopa=0) |
|---|
| 491 | ! - gamma*min(0,t-tgel) if climatological and opa ice (ziclim=1 zicopa=1) |
|---|
| 492 | |
|---|
| 493 | zqrp = ztrp * ( tb(ji,jj,1) - ztdta ) |
|---|
| 494 | zqri = ztrp * ( tb(ji,jj,1) - ( fzptn(ji,jj) - 1.) ) |
|---|
| 495 | zqrj = ztrp * MIN( 0., tb(ji,jj,1) - fzptn(ji,jj) ) |
|---|
| 496 | qrp(ji,jj) = ( (1. - ziclim(ji,jj)) * zqrp & |
|---|
| 497 | + ziclim(ji,jj) * ( ( 1 - freeze(ji,jj)) * zqri & |
|---|
| 498 | + freeze(ji,jj) * zqrj ) ) * tmask(ji,jj,1) |
|---|
| 499 | |
|---|
| 500 | ! c) net downward heat flux q() = q0 + qrp() |
|---|
| 501 | ! for q0 |
|---|
| 502 | ! - ECMWF fluxes if no climatological ice (ziclim=0) |
|---|
| 503 | ! - qrp if climatological ice and no opa ice (ziclim=1 zicopa=0) |
|---|
| 504 | ! - -2 watt/m2 (arctic) or -4 watt/m2 (antarctic) if climatological and opa ice |
|---|
| 505 | ! (ziclim=1 zicopa=1) |
|---|
| 506 | zq = zqt(ji,jj) |
|---|
| 507 | zqi = -3. + zhemis |
|---|
| 508 | qt (ji,jj) = ( (1.-ziclim(ji,jj)) * zq & |
|---|
| 509 | +ziclim(ji,jj) * freeze(ji,jj) * zqi ) & |
|---|
| 510 | * tmask(ji,jj,1) & |
|---|
| 511 | + qrp(ji,jj) |
|---|
| 512 | q (ji,jj) = qt (ji,jj) |
|---|
| 513 | |
|---|
| 514 | END DO |
|---|
| 515 | END DO |
|---|
| 516 | |
|---|
| 517 | #if defined key_dynspg_fsc |
|---|
| 518 | ! Free-surface |
|---|
| 519 | |
|---|
| 520 | ! Water flux for zero buoyancy flux if no opa ice and ice clim |
|---|
| 521 | zeri(:,:) = -zsice * qrp(:,:) * ro0cpr * rauw / 34.0 |
|---|
| 522 | zerps(:,:) = ziclim(:,:) * ( (1-freeze(:,:)) * zeri(:,:) ) |
|---|
| 523 | |
|---|
| 524 | ! Contribution to sea level: |
|---|
| 525 | ! net upward water flux emp() = e-p + runoff() + erp() + dmp + empold |
|---|
| 526 | emp (:,:) = zemp(:,:) & ! e-p data |
|---|
| 527 | & + runoff(:,:) & ! runoff data |
|---|
| 528 | & + erp(:,:) & ! restoring term to SSS data |
|---|
| 529 | & + dmp(:,:) & ! freshwater flux associated with internal damping |
|---|
| 530 | & + empold ! domain averaged annual mean correction |
|---|
| 531 | |
|---|
| 532 | ! Contribution to salinity: |
|---|
| 533 | ! net upward water flux emps() = e-p + runoff() + erp() + zerps + empold |
|---|
| 534 | emps(:,:) = zemp(:,:) & |
|---|
| 535 | & + runoff(:,:) & |
|---|
| 536 | & + erp(:,:) & |
|---|
| 537 | & + zerps(:,:) & |
|---|
| 538 | & + empold |
|---|
| 539 | #else |
|---|
| 540 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
|---|
| 541 | ! freshwater flux |
|---|
| 542 | zeri(:,:) = -zsice * qrp(:,:) * ro0cpr * rauw / 34.0 |
|---|
| 543 | zerps(:,:) = ziclim(:,:) * ( (1-freeze(:,:)) * zeri(:,:) ) |
|---|
| 544 | emps (:,:) = zemp(:,:) & |
|---|
| 545 | & + runoff(:,:) & |
|---|
| 546 | & + erp(:,:) & |
|---|
| 547 | & + zerps(:,:) |
|---|
| 548 | emp (:,:) = emps(:,:) |
|---|
| 549 | #endif |
|---|
| 550 | |
|---|
| 551 | ! Boundary condition on emp for free surface option |
|---|
| 552 | ! ------------------------------------------------- |
|---|
| 553 | CALL lbc_lnk( emp, 'T', 1. ) |
|---|
| 554 | |
|---|
| 555 | ENDIF |
|---|
| 556 | |
|---|
| 557 | END SUBROUTINE oce_sbc |
|---|
| 558 | |
|---|
| 559 | # else |
|---|
| 560 | !!---------------------------------------------------------------------- |
|---|
| 561 | !! Default option : Analytical forcing |
|---|
| 562 | !!---------------------------------------------------------------------- |
|---|
| 563 | |
|---|
| 564 | SUBROUTINE oce_sbc( kt ) |
|---|
| 565 | !!--------------------------------------------------------------------- |
|---|
| 566 | !! *** ROUTINE oce_sbc *** |
|---|
| 567 | !! |
|---|
| 568 | !! ** Purpose : provide the thermohaline fluxes (heat and freshwater) |
|---|
| 569 | !! to the ocean at each time step. |
|---|
| 570 | !! |
|---|
| 571 | !! ** Method : Constant surface fluxes (read in namelist (namflx)) |
|---|
| 572 | !! |
|---|
| 573 | !! ** Action : - q, qt, qsr, emp, emps, qrp, erp |
|---|
| 574 | !! |
|---|
| 575 | !! History : |
|---|
| 576 | !! ! 91-03 () Original code |
|---|
| 577 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
|---|
| 578 | !! 9.0 ! 04-05 (A. Koch-Larrouy) Add Gyre configuration |
|---|
| 579 | !!---------------------------------------------------------------------- |
|---|
| 580 | !! * Modules used |
|---|
| 581 | USE flxrnf ! ocean runoffs |
|---|
| 582 | USE daymod, ONLY : nyear ! calendar |
|---|
| 583 | |
|---|
| 584 | !! * arguments |
|---|
| 585 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 586 | |
|---|
| 587 | !! * local declarations |
|---|
| 588 | REAL(wp) :: & !!! surface fluxes namelist (namflx) |
|---|
| 589 | q0 = 0.e0, & ! net heat flux |
|---|
| 590 | qsr0 = 0.e0, & ! solar heat flux |
|---|
| 591 | emp0 = 0.e0 ! net freshwater flux |
|---|
| 592 | REAL(wp) :: ztrp, zemp_S, zemp_N, zemp_sais, zTstar, zcos_sais, zconv |
|---|
| 593 | REAL(wp) :: & |
|---|
| 594 | zsumemp, & ! tampon used for the emp sum |
|---|
| 595 | zsurf, & ! tampon used for the domain sum |
|---|
| 596 | ztime, & ! time in hour |
|---|
| 597 | ztimemax, ztimemin ! 21th june, and 21th december if date0 = 1st january |
|---|
| 598 | REAL(wp), DIMENSION(jpi,jpj) :: t_star |
|---|
| 599 | INTEGER :: ji, jj, & ! dummy loop indices |
|---|
| 600 | js ! indice for months |
|---|
| 601 | INTEGER :: & |
|---|
| 602 | zyear0, & ! initial year |
|---|
| 603 | zmonth0, & ! initial month |
|---|
| 604 | zday0, & ! initial day |
|---|
| 605 | zday_year0, & ! initial day since january 1st |
|---|
| 606 | zdaymax |
|---|
| 607 | |
|---|
| 608 | NAMELIST/namflx/ q0, qsr0, emp0 |
|---|
| 609 | !!--------------------------------------------------------------------- |
|---|
| 610 | |
|---|
| 611 | !same temperature, E-P as in HAZELEGER 2000 |
|---|
| 612 | |
|---|
| 613 | IF( cp_cfg == 'gyre' ) THEN |
|---|
| 614 | |
|---|
| 615 | zyear0 = ndate0 / 10000 |
|---|
| 616 | zmonth0 = ( ndate0 - zyear0 * 10000 ) / 100 |
|---|
| 617 | zday0 = ndate0 - zyear0 * 10000 - zmonth0 * 100 |
|---|
| 618 | !Calculates nday_year, day since january 1st |
|---|
| 619 | zday_year0 = zday0 |
|---|
| 620 | !accumulates days of previous months of this year |
|---|
| 621 | |
|---|
| 622 | DO js = 1, zmonth0 |
|---|
| 623 | IF(nleapy > 1) THEN |
|---|
| 624 | zday_year0 = zday_year0 + nleapy |
|---|
| 625 | ELSE |
|---|
| 626 | IF( MOD(zyear0, 4 ) == 0 ) THEN |
|---|
| 627 | zday_year0 = zday_year0 + nbiss(js) |
|---|
| 628 | ELSE |
|---|
| 629 | zday_year0 = zday_year0 + nobis(js) |
|---|
| 630 | ENDIF |
|---|
| 631 | ENDIF |
|---|
| 632 | END DO |
|---|
| 633 | ! day (in hours) since january the 1st |
|---|
| 634 | ztime = FLOAT( kt ) * rdt / (rmmss * rhhmm) & ! incrementation in hour |
|---|
| 635 | & - (nyear - 1) * rjjhh * raajj & ! - nber of hours the precedent years |
|---|
| 636 | & + zday_year0 / 24 ! nber of hours initial date |
|---|
| 637 | ! day 21th counted since the 1st January |
|---|
| 638 | zdaymax = 21 ! 21th day of the month |
|---|
| 639 | DO js = 1, 5 ! count each day until end May |
|---|
| 640 | IF(nleapy > 1) THEN |
|---|
| 641 | zdaymax = zdaymax + nleapy |
|---|
| 642 | ELSE |
|---|
| 643 | IF( MOD(zyear0, 4 ) == 0 ) THEN |
|---|
| 644 | zdaymax = zdaymax + nbiss(js) |
|---|
| 645 | ELSE |
|---|
| 646 | zdaymax = zdaymax + nobis(js) |
|---|
| 647 | ENDIF |
|---|
| 648 | ENDIF |
|---|
| 649 | END DO |
|---|
| 650 | ! 21th june in hours |
|---|
| 651 | ztimemax = zdaymax * 24 |
|---|
| 652 | ! 21th december day in hours |
|---|
| 653 | ztimemin = ztimemax + rjjhh * raajj / 2 ! rjjhh * raajj / 4 = 1 seasonal cycle in hours |
|---|
| 654 | ! amplitudes |
|---|
| 655 | zemp_S = 0.7 ! intensity of COS in the South |
|---|
| 656 | zemp_N = 0.8 ! intensity of COS in the North |
|---|
| 657 | zemp_sais= 0.1 |
|---|
| 658 | zTstar = 28.3 ! intemsity from 28.3 à -5° |
|---|
| 659 | zcos_sais = COS( (ztime - ztimemax) / (ztimemin - ztimemax) * rpi ) ! 1/2 period between 21th June and 21th December |
|---|
| 660 | ztrp= - 40. ! retroaction term (W/m2/K) |
|---|
| 661 | zconv = 3.16e-5 ! convert 1m/yr->3.16e-5mm/s |
|---|
| 662 | DO jj = 1, jpj |
|---|
| 663 | DO ji = 1, jpi |
|---|
| 664 | t_star (ji,jj) = zTstar * ( 1 + 1. / 50. * zcos_sais ) & ! domain from 15° to 50° |
|---|
| 665 | & * COS( rpi * (gphit(ji,jj) - 5.) & ! between 27 and 28 °C at 15N, -3 |
|---|
| 666 | & / (53.5 * ( 1 + 11 / 53.5 * zcos_sais ) * 2.) ) ! and 13°C at 50N 53.5 + or - 11 |
|---|
| 667 | ! ! = 1/4 period : |
|---|
| 668 | ! ! 64.5 in summer, 42.5 in winter |
|---|
| 669 | qt (ji,jj) = ztrp * ( tb(ji,jj,1) - t_star(ji,jj) ) |
|---|
| 670 | IF( gphit(ji,jj) >= 14.845 .AND. 37.2 >= gphit(ji,jj)) THEN |
|---|
| 671 | emp (ji,jj) = zemp_S * zconv & |
|---|
| 672 | & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (24.6 - 37.2) ) & ! zero at 37.8°, max at 24.6° |
|---|
| 673 | & * ( 1 - zemp_sais / zemp_S * zcos_sais) |
|---|
| 674 | emps (ji,jj) = emp (ji,jj) |
|---|
| 675 | ELSE |
|---|
| 676 | emp (ji,jj) = - zemp_N * zconv & |
|---|
| 677 | & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (46.8 - 37.2) ) & ! zero at 37.8°, max at 46.8° |
|---|
| 678 | & * ( 1 - zemp_sais / zemp_N * zcos_sais ) |
|---|
| 679 | emps (ji,jj) = emp (ji,jj) |
|---|
| 680 | ENDIF |
|---|
| 681 | qsr (ji,jj) = 230 * COS( 3.1415 * ( gphit(ji,jj) - 23.5 * zcos_sais ) / ( 0.9 * 180 ) ) ! 23.5° : tropics |
|---|
| 682 | END DO |
|---|
| 683 | END DO |
|---|
| 684 | ! compute the emp flux such as its integration on the whole domain and at each time be zero |
|---|
| 685 | zsumemp = 0. |
|---|
| 686 | zsurf = 0. |
|---|
| 687 | DO jj = 1, jpj |
|---|
| 688 | DO ji = 1, jpi |
|---|
| 689 | zsumemp = zsumemp + emp(ji, jj) * tmask(ji, jj, 1) |
|---|
| 690 | zsurf = zsurf + tmask(ji, jj, 1) |
|---|
| 691 | END DO |
|---|
| 692 | END DO |
|---|
| 693 | |
|---|
| 694 | IF( lk_mpp ) CALL mpp_sum( zsumemp ) ! sum over the global domain |
|---|
| 695 | IF( lk_mpp ) CALL mpp_sum( zsurf ) ! sum over the global domain |
|---|
| 696 | |
|---|
| 697 | IF( nbench /= 0 ) THEN |
|---|
| 698 | ! Benchmark GYRE configuration (to allow the bit to bit comparison between Mpp/Mono case) |
|---|
| 699 | zsumemp = 0.e0 |
|---|
| 700 | ELSE |
|---|
| 701 | ! Default GYRE configuration |
|---|
| 702 | zsumemp = zsumemp / zsurf |
|---|
| 703 | ENDIF |
|---|
| 704 | DO jj = 1, jpj |
|---|
| 705 | DO ji = 1, jpi |
|---|
| 706 | emp(ji, jj)= emp(ji, jj) - zsumemp * tmask(ji, jj, 1) |
|---|
| 707 | END DO |
|---|
| 708 | END DO |
|---|
| 709 | |
|---|
| 710 | ELSE |
|---|
| 711 | |
|---|
| 712 | IF( kt == nit000 ) THEN |
|---|
| 713 | |
|---|
| 714 | ! Read Namelist namflx : surface thermohaline fluxes |
|---|
| 715 | ! -------------------- |
|---|
| 716 | REWIND ( numnam ) |
|---|
| 717 | READ ( numnam, namflx ) |
|---|
| 718 | |
|---|
| 719 | IF(lwp) WRITE(numout,*)' ' |
|---|
| 720 | IF(lwp) WRITE(numout,*)' ocesbc : Constant surface fluxes read in namelist' |
|---|
| 721 | IF(lwp) WRITE(numout,*)' ~~~~~~~ ' |
|---|
| 722 | IF(lwp) WRITE(numout,*)' Namelist namflx: set the constant flux values' |
|---|
| 723 | IF(lwp) WRITE(numout,*)' net heat flux q0 = ', q0 , ' W/m2' |
|---|
| 724 | IF(lwp) WRITE(numout,*)' solar heat flux qsr0 = ', qsr0, ' W/m2' |
|---|
| 725 | IF(lwp) WRITE(numout,*)' net heat flux emp0 = ', emp0, ' W/m2' |
|---|
| 726 | |
|---|
| 727 | qt (:,:) = q0 |
|---|
| 728 | qsr (:,:) = qsr0 |
|---|
| 729 | q (:,:) = q0 |
|---|
| 730 | emp (:,:) = emp0 |
|---|
| 731 | emps (:,:) = emp0 |
|---|
| 732 | qrp (:,:) = 0.e0 |
|---|
| 733 | erp (:,:) = 0.e0 |
|---|
| 734 | |
|---|
| 735 | runoff(:,:) = 0.e0 |
|---|
| 736 | ENDIF |
|---|
| 737 | ENDIF |
|---|
| 738 | |
|---|
| 739 | END SUBROUTINE oce_sbc |
|---|
| 740 | |
|---|
| 741 | # endif |
|---|
| 742 | #endif |
|---|
| 743 | |
|---|
| 744 | #if defined key_dtasal |
|---|
| 745 | !!---------------------------------------------------------------------- |
|---|
| 746 | !! 'key_dtasal' salinity data |
|---|
| 747 | !!---------------------------------------------------------------------- |
|---|
| 748 | SUBROUTINE oce_sbc_dmp |
|---|
| 749 | !!--------------------------------------------------------------------- |
|---|
| 750 | !! *** ROUTINE oce_sbc_dmp *** |
|---|
| 751 | !! |
|---|
| 752 | !! ** Purpose : Computation of internal and evaporation damping terms |
|---|
| 753 | !! for ocean surface boundary conditions |
|---|
| 754 | !! |
|---|
| 755 | !! History : |
|---|
| 756 | !! 9.0 ! 04-01 (G. Madec, C. Ethe) Original code |
|---|
| 757 | !!---------------------------------------------------------------------- |
|---|
| 758 | !! * Local declarations |
|---|
| 759 | INTEGER :: ji, jj ! dummy loop indices |
|---|
| 760 | REAL(wp), DIMENSION(jpi,jpj) :: zsss, zfreeze |
|---|
| 761 | REAL(wp) :: zerp, ztrp, zsrp |
|---|
| 762 | #if defined key_dynspg_fsc |
|---|
| 763 | REAL(wp) :: zwei |
|---|
| 764 | REAL(wp) :: zerpplus(jpi,jpj), zerpminus(jpi,jpj) |
|---|
| 765 | REAL(wp) :: zplus, zminus, zadefi |
|---|
| 766 | # if defined key_tradmp |
|---|
| 767 | INTEGER jk |
|---|
| 768 | REAL(wp), DIMENSION(jpi,jpj) :: zstrdmp |
|---|
| 769 | # endif |
|---|
| 770 | #endif |
|---|
| 771 | !!---------------------------------------------------------------------- |
|---|
| 772 | |
|---|
| 773 | #if defined key_ice_lim |
|---|
| 774 | ! sea ice indicator (1 or 0) |
|---|
| 775 | DO jj = 1, jpj |
|---|
| 776 | DO ji = 1, jpi |
|---|
| 777 | freezn(ji,jj) = MAX(0., SIGN(1., freeze(ji,jj)-rsmall) ) |
|---|
| 778 | END DO |
|---|
| 779 | END DO |
|---|
| 780 | zsss (:,:) = sss_io(:,:) |
|---|
| 781 | zfreeze(:,:) = freezn(:,:) |
|---|
| 782 | #else |
|---|
| 783 | zsss (:,:) = sn (:,:,1) |
|---|
| 784 | zfreeze(:,:) = freeze(:,:) |
|---|
| 785 | #endif |
|---|
| 786 | |
|---|
| 787 | ! Initialisation |
|---|
| 788 | ! -------------- |
|---|
| 789 | ! Restoring coefficients on SST and SSS |
|---|
| 790 | IF( lk_cpl ) THEN |
|---|
| 791 | ztrp = 0.e0 |
|---|
| 792 | zsrp = 0.e0 |
|---|
| 793 | ELSE |
|---|
| 794 | ztrp = -40. ! (W/m2/K) |
|---|
| 795 | zsrp = ztrp * ro0cpr * rauw ! (Kg/m2/s2) |
|---|
| 796 | ENDIF |
|---|
| 797 | |
|---|
| 798 | #if defined key_dynspg_fsc |
|---|
| 799 | ! Free-surface |
|---|
| 800 | |
|---|
| 801 | ! Internal damping |
|---|
| 802 | # if defined key_tradmp |
|---|
| 803 | ! Vertical mean of dampind trend (computed in tradmp module) |
|---|
| 804 | zstrdmp(:,:) = 0.e0 |
|---|
| 805 | DO jk = 1, jpk |
|---|
| 806 | zstrdmp(:,:) = zstrdmp(:,:) + strdmp(:,:,jk) * fse3t(:,:,jk) |
|---|
| 807 | END DO |
|---|
| 808 | ! volume flux associated to internal damping to climatology |
|---|
| 809 | !!ibu dmp(:,:) = zstrdmp(:,:) * rauw / ( zsss(:,:) + rsmall ) |
|---|
| 810 | dmp(:,:) = zstrdmp(:,:) * rauw / ( zsss(:,:) + 1.e-20 ) |
|---|
| 811 | # else |
|---|
| 812 | dmp(:,:) = 0.e0 ! No internal damping |
|---|
| 813 | # endif |
|---|
| 814 | |
|---|
| 815 | ! evaporation damping term ( Surface restoring ) |
|---|
| 816 | zerpplus (:,:) = 0.e0 |
|---|
| 817 | zerpminus(:,:) = 0.e0 |
|---|
| 818 | zplus = 15. / rday |
|---|
| 819 | zminus = -15. / rday |
|---|
| 820 | |
|---|
| 821 | DO jj = 1, jpj |
|---|
| 822 | DO ji = 1, jpi |
|---|
| 823 | zerp = ( 1. - 2.*upsrnfh(ji,jj) ) * zsrp & |
|---|
| 824 | & * ( zsss(ji,jj) - s_dta(ji,jj,1) ) & |
|---|
| 825 | & / ( zsss(ji,jj) + 1.e-20 ) |
|---|
| 826 | !ib & / ( zsss(ji,jj) + rsmall ) |
|---|
| 827 | |
|---|
| 828 | zerp = MIN( zerp, zplus ) |
|---|
| 829 | zerp = MAX( zerp, zminus ) |
|---|
| 830 | erp(ji,jj) = zerp |
|---|
| 831 | zerpplus (ji,jj) = MAX( erp(ji,jj), 0.e0 ) |
|---|
| 832 | zerpminus(ji,jj) = MIN( erp(ji,jj), 0.e0 ) |
|---|
| 833 | END DO |
|---|
| 834 | END DO |
|---|
| 835 | |
|---|
| 836 | aplus = 0.e0 |
|---|
| 837 | aminus = 0.e0 |
|---|
| 838 | DO jj = 1, jpj |
|---|
| 839 | DO ji = 1, jpi |
|---|
| 840 | zwei = e1t(ji,jj) * e2t(ji,jj) * tmask_i(ji,jj) |
|---|
| 841 | aplus = aplus + zerpplus (ji,jj) * zwei |
|---|
| 842 | aminus = aminus - zerpminus(ji,jj) * zwei |
|---|
| 843 | END DO |
|---|
| 844 | END DO |
|---|
| 845 | IF( lk_mpp ) CALL mpp_sum( aplus ) ! sums over the global domain |
|---|
| 846 | IF( lk_mpp ) CALL mpp_sum( aminus ) |
|---|
| 847 | IF(l_ctl) WRITE(numout,*) ' oce_sbc_dmp : a+ = ', aplus, ' a- = ', aminus |
|---|
| 848 | |
|---|
| 849 | zadefi = MIN( aplus, aminus ) |
|---|
| 850 | IF( zadefi == 0.e0 ) THEN |
|---|
| 851 | erp(:,:) = 0.e0 |
|---|
| 852 | ELSE |
|---|
| 853 | erp(:,:) = zadefi * ( zerpplus(:,:) / aplus + zerpminus(:,:) / aminus ) |
|---|
| 854 | ENDIF |
|---|
| 855 | #else |
|---|
| 856 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
|---|
| 857 | |
|---|
| 858 | erp(:,:) = ( 1. - zfreeze(:,:) ) * zsrp & ! surface restoring term |
|---|
| 859 | & * ( zsss(:,:) - s_dta(:,:,1) ) & |
|---|
| 860 | & / ( zsss(:,:) + 1.e-20 ) |
|---|
| 861 | !ib & / ( zsss(:,:) + rsmall ) |
|---|
| 862 | #endif |
|---|
| 863 | |
|---|
| 864 | END SUBROUTINE oce_sbc_dmp |
|---|
| 865 | |
|---|
| 866 | #else |
|---|
| 867 | !!---------------------------------------------------------------------- |
|---|
| 868 | !! Dummy routine NO salinity data |
|---|
| 869 | !!---------------------------------------------------------------------- |
|---|
| 870 | SUBROUTINE oce_sbc_dmp ! Dummy routine |
|---|
| 871 | WRITE(*,*) 'oce_sbc_dmp: you should not have seen that print! error?' |
|---|
| 872 | END SUBROUTINE oce_sbc_dmp |
|---|
| 873 | #endif |
|---|
| 874 | |
|---|
| 875 | !!====================================================================== |
|---|
| 876 | END MODULE ocesbc |
|---|
