[3] | 1 | MODULE dynhpg |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE dynhpg *** |
---|
| 4 | !! Ocean dynamics: hydrostatic pressure gradient trend |
---|
| 5 | !!====================================================================== |
---|
| 6 | |
---|
| 7 | !!---------------------------------------------------------------------- |
---|
| 8 | !! dyn_hpg : update the momentum trend with the horizontal |
---|
| 9 | !! gradient of the hydrostatic pressure |
---|
| 10 | !! |
---|
| 11 | !! default case : use of 3D work arrays (vector opt. available) |
---|
| 12 | !! key_s_coord : s-coordinate |
---|
| 13 | !! key_partial_steps : z-coordinate with partial steps |
---|
| 14 | !! default key : z-coordinate |
---|
| 15 | !!---------------------------------------------------------------------- |
---|
| 16 | !! * Modules used |
---|
| 17 | USE oce ! ocean dynamics and tracers |
---|
| 18 | USE dom_oce ! ocean space and time domain |
---|
| 19 | USE phycst ! physical constants |
---|
| 20 | USE in_out_manager ! I/O manager |
---|
[216] | 21 | USE trdmod ! ocean dynamics trends |
---|
| 22 | USE trdmod_oce ! ocean variables trends |
---|
[258] | 23 | USE prtctl ! Print control |
---|
[3] | 24 | |
---|
| 25 | IMPLICIT NONE |
---|
| 26 | PRIVATE |
---|
| 27 | |
---|
| 28 | !! * Accessibility |
---|
| 29 | PUBLIC dyn_hpg ! routine called by step.F90 |
---|
| 30 | |
---|
| 31 | #if defined key_autotasking |
---|
| 32 | !!---------------------------------------------------------------------- |
---|
| 33 | !! 'key_autotasking' : j-k-i loop (j-slab) |
---|
| 34 | !!---------------------------------------------------------------------- |
---|
[32] | 35 | LOGICAL, PUBLIC, PARAMETER :: lk_dynhpg_tsk = .TRUE. !: autotasked hpg flag |
---|
| 36 | LOGICAL, PUBLIC, PARAMETER :: lk_dynhpg = .FALSE. !: vector hpg flag |
---|
[3] | 37 | #else |
---|
| 38 | !!---------------------------------------------------------------------- |
---|
| 39 | !! default case : k-j-i loop (vector opt.) |
---|
| 40 | !!---------------------------------------------------------------------- |
---|
[32] | 41 | LOGICAL, PUBLIC, PARAMETER :: lk_dynhpg_tsk = .FALSE. !: autotasked hpg flag |
---|
| 42 | LOGICAL, PUBLIC, PARAMETER :: lk_dynhpg = .TRUE. !: vector hpg flag |
---|
[3] | 43 | #endif |
---|
| 44 | |
---|
| 45 | !! * Substitutions |
---|
| 46 | # include "domzgr_substitute.h90" |
---|
| 47 | # include "vectopt_loop_substitute.h90" |
---|
| 48 | !!---------------------------------------------------------------------- |
---|
[247] | 49 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
---|
| 50 | !! $Header$ |
---|
| 51 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
---|
[3] | 52 | !!---------------------------------------------------------------------- |
---|
| 53 | |
---|
| 54 | CONTAINS |
---|
| 55 | |
---|
| 56 | #if defined key_s_coord |
---|
| 57 | !!---------------------------------------------------------------------- |
---|
| 58 | !! 'key_s_coord' : s-coordinate |
---|
| 59 | !!---------------------------------------------------------------------- |
---|
| 60 | |
---|
| 61 | SUBROUTINE dyn_hpg( kt ) |
---|
| 62 | !!--------------------------------------------------------------------- |
---|
| 63 | !! *** ROUTINE dyn_hpg *** |
---|
| 64 | !! |
---|
| 65 | !! ** Purpose : Compute the now momentum trend due to the hor. gradient |
---|
| 66 | !! of the hydrostatic pressure. Add it to the general momentum trend. |
---|
| 67 | !! |
---|
| 68 | !! ** Method : The now hydrostatic pressure gradient at a given level |
---|
| 69 | !! jk is computed by taking the vertical integral of the in-situ |
---|
| 70 | !! density gradient along the model level from the suface to that |
---|
| 71 | !! level. s-coordinates ('key_s_coord'): a corrective term is added |
---|
| 72 | !! to the horizontal pressure gradient : |
---|
[32] | 73 | !! zhpi = grav ..... + 1/e1u mi(rhd) di[ grav dep3w ] |
---|
| 74 | !! zhpj = grav ..... + 1/e2v mj(rhd) dj[ grav dep3w ] |
---|
[3] | 75 | !! add it to the general momentum trend (ua,va). |
---|
| 76 | !! ua = ua - 1/e1u * zhpi |
---|
| 77 | !! va = va - 1/e2v * zhpj |
---|
| 78 | !! |
---|
| 79 | !! ** Action : - Update (ua,va) with the now hydrastatic pressure trend |
---|
| 80 | !! - Save the trend in (utrd,vtrd) ('key_trddyn') |
---|
| 81 | !! |
---|
| 82 | !! History : |
---|
| 83 | !! 1.0 ! 87-09 (P. Andrich, m.-a. Foujols) Original code |
---|
| 84 | !! ! 91-11 (G. Madec) |
---|
| 85 | !! ! 96-01 (G. Madec) s-coordinates |
---|
| 86 | !! ! 97-05 (G. Madec) split dynber into dynkeg and dynhpg |
---|
| 87 | !! 8.5 ! 02-08 (G. Madec) F90: Free form and module, vector opt. |
---|
[216] | 88 | !! 9.0 ! 04-08 (C. Talandier) New trends organization |
---|
[3] | 89 | !!---------------------------------------------------------------------- |
---|
| 90 | !! * modules used |
---|
| 91 | USE oce, ONLY : zhpi => ta, & ! use ta as 3D workspace |
---|
| 92 | & zhpj => sa ! use sa as 3D workspace |
---|
| 93 | |
---|
| 94 | !! * Arguments |
---|
| 95 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
| 96 | |
---|
| 97 | !! * Local declarations |
---|
| 98 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 99 | REAL(wp) :: & |
---|
| 100 | zcoef0, zcoef1, zuap, zvap ! temporary scalars |
---|
[216] | 101 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & |
---|
| 102 | ztdua, ztdva ! temporary scalars |
---|
[3] | 103 | !!---------------------------------------------------------------------- |
---|
| 104 | |
---|
| 105 | IF( kt == nit000 ) THEN |
---|
| 106 | IF(lwp) WRITE(numout,*) |
---|
| 107 | IF(lwp) WRITE(numout,*) 'dyn_hpg : hydrostatic pressure gradient trend' |
---|
| 108 | IF(lwp) WRITE(numout,*) '~~~~~~~ s-coordinate case, vector opt. case' |
---|
| 109 | ENDIF |
---|
| 110 | |
---|
[216] | 111 | ! Save ua and va trends |
---|
| 112 | IF( l_trddyn ) THEN |
---|
| 113 | ztdua(:,:,:) = ua(:,:,:) |
---|
| 114 | ztdva(:,:,:) = va(:,:,:) |
---|
| 115 | ENDIF |
---|
| 116 | |
---|
[3] | 117 | ! 0. Local constant initialization |
---|
| 118 | ! -------------------------------- |
---|
[32] | 119 | zcoef0 = - grav * 0.5 |
---|
[3] | 120 | zuap = 0.e0 |
---|
| 121 | zvap = 0.e0 |
---|
| 122 | |
---|
| 123 | ! 1. Surface value |
---|
| 124 | ! ---------------- |
---|
| 125 | DO jj = 2, jpjm1 |
---|
| 126 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 127 | ! hydrostatic pressure gradient along s-surfaces |
---|
| 128 | zhpi(ji,jj,1) = zcoef0 / e1u(ji,jj) & |
---|
| 129 | * ( fse3w(ji+1,jj,1) * rhd(ji+1,jj,1) - fse3w(ji,jj,1) * rhd(ji,jj,1) ) |
---|
| 130 | zhpj(ji,jj,1) = zcoef0 / e2v(ji,jj) & |
---|
| 131 | * ( fse3w(ji,jj+1,1) * rhd(ji,jj+1,1) - fse3w(ji,jj,1) * rhd(ji,jj,1) ) |
---|
| 132 | ! s-coordinate pressure gradient correction |
---|
| 133 | zuap = -zcoef0 * ( rhd(ji+1,jj,1) + rhd(ji,jj,1) ) & |
---|
| 134 | * ( fsde3w(ji+1,jj,1) - fsde3w(ji,jj,1) ) / e1u(ji,jj) |
---|
| 135 | zvap = -zcoef0 * ( rhd(ji,jj+1,1) + rhd(ji,jj,1) ) & |
---|
| 136 | * ( fsde3w(ji,jj+1,1) - fsde3w(ji,jj,1) ) / e2v(ji,jj) |
---|
| 137 | ! add to the general momentum trend |
---|
| 138 | ua(ji,jj,1) = ua(ji,jj,1) + zhpi(ji,jj,1) + zuap |
---|
| 139 | va(ji,jj,1) = va(ji,jj,1) + zhpj(ji,jj,1) + zvap |
---|
| 140 | END DO |
---|
| 141 | END DO |
---|
| 142 | |
---|
| 143 | ! 2. interior value (2=<jk=<jpkm1) |
---|
| 144 | ! ----------------- |
---|
| 145 | DO jk = 2, jpkm1 |
---|
| 146 | DO jj = 2, jpjm1 |
---|
| 147 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 148 | ! hydrostatic pressure gradient along s-surfaces |
---|
| 149 | zhpi(ji,jj,jk) = zhpi(ji,jj,jk-1) + zcoef0 / e1u(ji,jj) & |
---|
[216] | 150 | & * ( fse3w(ji+1,jj,jk) * ( rhd(ji+1,jj,jk) + rhd(ji+1,jj,jk-1) ) & |
---|
| 151 | & -fse3w(ji ,jj,jk) * ( rhd(ji ,jj,jk) + rhd(ji ,jj,jk-1) ) ) |
---|
[3] | 152 | zhpj(ji,jj,jk) = zhpj(ji,jj,jk-1) + zcoef0 / e2v(ji,jj) & |
---|
[216] | 153 | & * ( fse3w(ji,jj+1,jk) * ( rhd(ji,jj+1,jk) + rhd(ji,jj+1,jk-1) ) & |
---|
| 154 | & -fse3w(ji,jj ,jk) * ( rhd(ji,jj, jk) + rhd(ji,jj ,jk-1) ) ) |
---|
[3] | 155 | ! s-coordinate pressure gradient correction |
---|
| 156 | zuap = -zcoef0 * ( rhd(ji+1,jj ,jk) + rhd(ji,jj,jk) ) & |
---|
| 157 | * ( fsde3w(ji+1,jj,jk) - fsde3w(ji,jj,jk) ) / e1u(ji,jj) |
---|
| 158 | zvap = -zcoef0 * ( rhd(ji ,jj+1,jk) + rhd(ji,jj,jk) ) & |
---|
| 159 | * ( fsde3w(ji,jj+1,jk) - fsde3w(ji,jj,jk) ) / e2v(ji,jj) |
---|
| 160 | ! add to the general momentum trend |
---|
| 161 | ua(ji,jj,jk) = ua(ji,jj,jk) + zhpi(ji,jj,jk) + zuap |
---|
| 162 | va(ji,jj,jk) = va(ji,jj,jk) + zhpj(ji,jj,jk) + zvap |
---|
| 163 | END DO |
---|
| 164 | END DO |
---|
| 165 | END DO |
---|
| 166 | |
---|
[216] | 167 | ! save the hydrostatic pressure gradient trends for diagnostic |
---|
| 168 | ! momentum trends |
---|
| 169 | IF( l_trddyn ) THEN |
---|
| 170 | zhpi(:,:,:) = ua(:,:,:) - ztdua(:,:,:) |
---|
| 171 | zhpj(:,:,:) = va(:,:,:) - ztdva(:,:,:) |
---|
| 172 | CALL trd_mod(zhpi, zhpj, jpdtdhpg, 'DYN', kt) |
---|
| 173 | ENDIF |
---|
| 174 | |
---|
[258] | 175 | IF(ln_ctl) THEN ! print sum trends (used for debugging) |
---|
| 176 | CALL prt_ctl(tab3d_1=ua, clinfo1=' hpg - Ua: ', mask1=umask, & |
---|
| 177 | & tab3d_2=va, clinfo2=' Va: ', mask2=vmask, clinfo3='dyn') |
---|
[3] | 178 | ENDIF |
---|
| 179 | |
---|
| 180 | END SUBROUTINE dyn_hpg |
---|
| 181 | |
---|
| 182 | #elif defined key_partial_steps |
---|
| 183 | !!--------------------------------------------------------------------- |
---|
| 184 | !! 'key_partial_steps' z-coordinate partial steps |
---|
| 185 | !!--------------------------------------------------------------------- |
---|
| 186 | |
---|
| 187 | SUBROUTINE dyn_hpg( kt ) |
---|
| 188 | !!--------------------------------------------------------------------- |
---|
| 189 | !! *** ROUTINE dyn_hpg *** |
---|
| 190 | !! |
---|
| 191 | !! ** Purpose : Compute the now momentum trend due to the horizontal |
---|
| 192 | !! gradient of the hydrostatic pressure. Add it to the general |
---|
| 193 | !! momentum trend. |
---|
| 194 | !! |
---|
| 195 | !! ** Method : The now hydrostatic pressure gradient at a given level |
---|
| 196 | !! jk is computed by taking the vertical integral of the in-situ |
---|
| 197 | !! density gradient along the model level from the suface to that |
---|
[32] | 198 | !! level: zhpi = grav ..... |
---|
| 199 | !! zhpj = grav ..... |
---|
[3] | 200 | !! add it to the general momentum trend (ua,va). |
---|
| 201 | !! ua = ua - 1/e1u * zhpi |
---|
| 202 | !! va = va - 1/e2v * zhpj |
---|
| 203 | !! |
---|
| 204 | !! ** Action : - Update (ua,va) with the now hydrastatic pressure trend |
---|
| 205 | !! - Save the trend in (utrd,vtrd) ('key_trddyn') |
---|
| 206 | !! |
---|
| 207 | !! History : |
---|
| 208 | !! 8.5 ! 02-08 (A. Bozec) Original code |
---|
| 209 | !!---------------------------------------------------------------------- |
---|
| 210 | !! * modules used |
---|
| 211 | USE oce, ONLY : zhpi => ta, & ! use ta as 3D workspace |
---|
| 212 | & zhpj => sa ! use sa as 3D workspace |
---|
| 213 | |
---|
| 214 | !! * Arguments |
---|
| 215 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
| 216 | |
---|
| 217 | !! * local declarations |
---|
| 218 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 219 | INTEGER :: iku, ikv ! temporary integers |
---|
| 220 | REAL(wp) :: & |
---|
| 221 | zcoef0, zcoef1, zuap, & ! temporary scalars |
---|
| 222 | zcoef2, zcoef3, zvap ! " " |
---|
[216] | 223 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & |
---|
| 224 | ztdua, ztdva ! temporary scalars |
---|
[3] | 225 | !!---------------------------------------------------------------------- |
---|
| 226 | |
---|
| 227 | IF( kt == nit000 ) THEN |
---|
| 228 | IF(lwp) WRITE(numout,*) |
---|
| 229 | IF(lwp) WRITE(numout,*) 'dyn_hpg : hydrostatic pressure gradient trend' |
---|
| 230 | IF(lwp) WRITE(numout,*) '~~~~~~~ z-coordinate with partial steps' |
---|
| 231 | IF(lwp) WRITE(numout,*) ' vector optimization, no autotasking' |
---|
| 232 | ENDIF |
---|
| 233 | |
---|
[216] | 234 | ! Save ua and va trends |
---|
| 235 | IF( l_trddyn ) THEN |
---|
| 236 | ztdua(:,:,:) = ua(:,:,:) |
---|
| 237 | ztdva(:,:,:) = va(:,:,:) |
---|
| 238 | ENDIF |
---|
| 239 | |
---|
[3] | 240 | ! 0. Local constant initialization |
---|
| 241 | ! -------------------------------- |
---|
[32] | 242 | zcoef0 = - grav * 0.5 |
---|
[3] | 243 | zuap = 0.e0 |
---|
| 244 | zvap = 0.e0 |
---|
| 245 | |
---|
| 246 | ! 1. Surface value |
---|
| 247 | ! ---------------- |
---|
| 248 | DO jj = 2, jpjm1 |
---|
| 249 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[170] | 250 | zcoef1 = zcoef0 * fse3w(ji,jj,1) |
---|
[3] | 251 | ! hydrostatic pressure gradient |
---|
| 252 | zhpi(ji,jj,1) = zcoef1 * ( rhd(ji+1,jj,1) - rhd(ji,jj,1) ) / e1u(ji,jj) |
---|
| 253 | zhpj(ji,jj,1) = zcoef1 * ( rhd(ji,jj+1,1) - rhd(ji,jj,1) ) / e2v(ji,jj) |
---|
| 254 | ! add to the general momentum trend |
---|
| 255 | ua(ji,jj,1) = ua(ji,jj,1) + zhpi(ji,jj,1) |
---|
| 256 | va(ji,jj,1) = va(ji,jj,1) + zhpj(ji,jj,1) |
---|
| 257 | END DO |
---|
| 258 | END DO |
---|
| 259 | |
---|
| 260 | ! 2. interior value (2=<jk=<jpkm1) |
---|
| 261 | ! ----------------- |
---|
| 262 | DO jk = 2, jpkm1 |
---|
| 263 | DO jj = 2, jpjm1 |
---|
| 264 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[170] | 265 | zcoef1 = zcoef0 * fse3w(ji,jj,jk) |
---|
[3] | 266 | ! hydrostatic pressure gradient |
---|
| 267 | zhpi(ji,jj,jk) = zhpi(ji,jj,jk-1) & |
---|
[216] | 268 | & + zcoef1 * ( ( rhd(ji+1,jj,jk)+rhd(ji+1,jj,jk-1) ) & |
---|
| 269 | & - ( rhd(ji ,jj,jk)+rhd(ji ,jj,jk-1) ) ) / e1u(ji,jj) |
---|
[3] | 270 | |
---|
| 271 | zhpj(ji,jj,jk) = zhpj(ji,jj,jk-1) & |
---|
[216] | 272 | & + zcoef1 * ( ( rhd(ji,jj+1,jk)+rhd(ji,jj+1,jk-1) ) & |
---|
| 273 | & - ( rhd(ji,jj, jk)+rhd(ji,jj ,jk-1) ) ) / e2v(ji,jj) |
---|
[3] | 274 | ! add to the general momentum trend |
---|
| 275 | ua(ji,jj,jk) = ua(ji,jj,jk) + zhpi(ji,jj,jk) |
---|
| 276 | va(ji,jj,jk) = va(ji,jj,jk) + zhpj(ji,jj,jk) |
---|
| 277 | END DO |
---|
| 278 | END DO |
---|
| 279 | END DO |
---|
| 280 | |
---|
| 281 | ! partial steps correction at the last level (new gradient with intgrd.F) |
---|
| 282 | # if defined key_vectopt_loop |
---|
| 283 | jj = 1 |
---|
| 284 | DO ji = jpi+2, jpij-jpi-1 ! vector opt. (forced unrolling) |
---|
| 285 | # else |
---|
| 286 | DO jj = 2, jpjm1 |
---|
| 287 | DO ji = 2, jpim1 |
---|
| 288 | # endif |
---|
| 289 | iku = MIN ( mbathy(ji,jj), mbathy(ji+1,jj) ) - 1 |
---|
| 290 | ikv = MIN ( mbathy(ji,jj), mbathy(ji,jj+1) ) - 1 |
---|
| 291 | zcoef2 = zcoef0 * MIN( fse3w(ji,jj,iku), fse3w(ji+1,jj ,iku) ) |
---|
| 292 | zcoef3 = zcoef0 * MIN( fse3w(ji,jj,ikv), fse3w(ji ,jj+1,ikv) ) |
---|
| 293 | ! on i-direction |
---|
| 294 | IF ( iku > 2 ) THEN |
---|
| 295 | ! subtract old value |
---|
| 296 | ua(ji,jj,iku) = ua(ji,jj,iku) - zhpi(ji,jj,iku) |
---|
| 297 | ! compute the new one |
---|
| 298 | zhpi (ji,jj,iku) = zhpi(ji,jj,iku-1) & |
---|
| 299 | + zcoef2 * ( rhd(ji+1,jj,iku-1) - rhd(ji,jj,iku-1) + gru(ji,jj) ) / e1u(ji,jj) |
---|
| 300 | ! add the new one to the general momentum trend |
---|
| 301 | ua(ji,jj,iku) = ua(ji,jj,iku) + zhpi(ji,jj,iku) |
---|
| 302 | ENDIF |
---|
| 303 | ! on j-direction |
---|
| 304 | IF ( ikv > 2 ) THEN |
---|
| 305 | ! subtract old value |
---|
| 306 | va(ji,jj,ikv) = va(ji,jj,ikv) - zhpj(ji,jj,ikv) |
---|
| 307 | ! compute the new one |
---|
| 308 | zhpj (ji,jj,ikv) = zhpj(ji,jj,ikv-1) & |
---|
| 309 | + zcoef3 * ( rhd(ji,jj+1,ikv-1) - rhd(ji,jj,ikv-1) + grv(ji,jj) ) / e2v(ji,jj) |
---|
| 310 | ! add the new one to the general momentum trend |
---|
| 311 | va(ji,jj,ikv) = va(ji,jj,ikv) + zhpj(ji,jj,ikv) |
---|
| 312 | ENDIF |
---|
| 313 | # if ! defined key_vectopt_loop |
---|
| 314 | END DO |
---|
| 315 | # endif |
---|
| 316 | END DO |
---|
| 317 | |
---|
[216] | 318 | ! save the hydrostatic pressure gradient trends for diagnostic |
---|
| 319 | ! momentum trends |
---|
| 320 | IF( l_trddyn ) THEN |
---|
| 321 | zhpi(:,:,:) = ua(:,:,:) - ztdua(:,:,:) |
---|
| 322 | zhpj(:,:,:) = va(:,:,:) - ztdva(:,:,:) |
---|
| 323 | CALL trd_mod(zhpi, zhpj, jpdtdhpg, 'DYN', kt) |
---|
| 324 | ENDIF |
---|
| 325 | |
---|
[258] | 326 | IF(ln_ctl) THEN ! print sum trends (used for debugging) |
---|
| 327 | CALL prt_ctl(tab3d_1=ua, clinfo1=' hpg - Ua: ', mask1=umask, & |
---|
| 328 | & tab3d_2=va, clinfo2=' Va: ', mask2=vmask, clinfo3='dyn') |
---|
[3] | 329 | ENDIF |
---|
| 330 | |
---|
| 331 | END SUBROUTINE dyn_hpg |
---|
| 332 | |
---|
| 333 | #else |
---|
| 334 | !!--------------------------------------------------------------------- |
---|
| 335 | !! Default case : z-coordinate |
---|
| 336 | !!--------------------------------------------------------------------- |
---|
| 337 | |
---|
| 338 | SUBROUTINE dyn_hpg( kt ) |
---|
| 339 | !!--------------------------------------------------------------------- |
---|
| 340 | !! *** ROUTINE dyn_hpg *** |
---|
| 341 | !! |
---|
| 342 | !! ** Purpose : Compute the now momentum trend due to the horizontal |
---|
| 343 | !! gradient of the hydrostatic pressure. Add it to the general |
---|
| 344 | !! momentum trend. |
---|
| 345 | !! |
---|
| 346 | !! ** Method : The now hydrostatic pressure gradient at a given level |
---|
| 347 | !! jk is computed by taking the vertical integral of the in-situ |
---|
| 348 | !! density gradient along the model level from the suface to that |
---|
[32] | 349 | !! level: zhpi = grav ..... |
---|
| 350 | !! zhpj = grav ..... |
---|
[3] | 351 | !! add it to the general momentum trend (ua,va). |
---|
| 352 | !! ua = ua - 1/e1u * zhpi |
---|
| 353 | !! va = va - 1/e2v * zhpj |
---|
| 354 | !! |
---|
| 355 | !! ** Action : - Update (ua,va) with the now hydrastatic pressure trend |
---|
| 356 | !! - Save the trend in (utrd,vtrd) ('key_trddyn') |
---|
| 357 | !! |
---|
| 358 | !! History : |
---|
| 359 | !! 1.0 ! 87-09 (P. Andrich, m.-a. Foujols) Original code |
---|
| 360 | !! ! 91-11 (G. Madec) |
---|
| 361 | !! ! 96-01 (G. Madec) s-coordinates |
---|
| 362 | !! ! 97-05 (G. Madec) split dynber into dynkeg and dynhpg |
---|
| 363 | !! 8.5 ! 02-07 (G. Madec) F90: Free form and module |
---|
| 364 | !!---------------------------------------------------------------------- |
---|
| 365 | !! * modules used |
---|
| 366 | USE oce, ONLY : zhpi => ta, & ! use ta as 3D workspace |
---|
| 367 | & zhpj => sa ! use sa as 3D workspace |
---|
| 368 | |
---|
| 369 | !! * Arguments |
---|
| 370 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
| 371 | |
---|
| 372 | !! * local declarations |
---|
| 373 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 374 | REAL(wp) :: & |
---|
| 375 | zcoef0, zcoef1, zuap, zvap ! temporary scalars |
---|
[216] | 376 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: & |
---|
| 377 | ztdua, ztdva ! temporary scalars |
---|
[3] | 378 | !!---------------------------------------------------------------------- |
---|
| 379 | |
---|
| 380 | IF( kt == nit000 ) THEN |
---|
| 381 | IF(lwp) WRITE(numout,*) |
---|
| 382 | IF(lwp) WRITE(numout,*) 'dyn_hpg : hydrostatic pressure gradient trend' |
---|
| 383 | IF(lwp) WRITE(numout,*) '~~~~~~~ z-coordinate case ' |
---|
| 384 | ENDIF |
---|
| 385 | |
---|
[216] | 386 | ! Save ua and va trends |
---|
| 387 | IF( l_trddyn ) THEN |
---|
| 388 | ztdua(:,:,:) = ua(:,:,:) |
---|
| 389 | ztdva(:,:,:) = va(:,:,:) |
---|
| 390 | ENDIF |
---|
| 391 | |
---|
[3] | 392 | ! 0. Local constant initialization |
---|
| 393 | ! -------------------------------- |
---|
[32] | 394 | zcoef0 = - grav * 0.5 |
---|
[3] | 395 | zuap = 0.e0 |
---|
| 396 | zvap = 0.e0 |
---|
| 397 | |
---|
| 398 | ! 1. Surface value |
---|
| 399 | ! ---------------- |
---|
| 400 | DO jj = 2, jpjm1 |
---|
| 401 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[216] | 402 | zcoef1 = zcoef0 * fse3w(ji,jj,1) |
---|
[3] | 403 | ! hydrostatic pressure gradient |
---|
| 404 | zhpi(ji,jj,1) = zcoef1 * ( rhd(ji+1,jj,1) - rhd(ji,jj,1) ) / e1u(ji,jj) |
---|
| 405 | zhpj(ji,jj,1) = zcoef1 * ( rhd(ji,jj+1,1) - rhd(ji,jj,1) ) / e2v(ji,jj) |
---|
| 406 | ! add to the general momentum trend |
---|
| 407 | ua(ji,jj,1) = ua(ji,jj,1) + zhpi(ji,jj,1) |
---|
| 408 | va(ji,jj,1) = va(ji,jj,1) + zhpj(ji,jj,1) |
---|
| 409 | END DO |
---|
| 410 | END DO |
---|
| 411 | |
---|
| 412 | ! 2. interior value (2=<jk=<jpkm1) |
---|
| 413 | ! ----------------- |
---|
| 414 | DO jk = 2, jpkm1 |
---|
| 415 | DO jj = 2, jpjm1 |
---|
| 416 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[216] | 417 | zcoef1 = zcoef0 * fse3w(ji,jj,jk) |
---|
[3] | 418 | ! hydrostatic pressure gradient |
---|
| 419 | zhpi(ji,jj,jk) = zhpi(ji,jj,jk-1) & |
---|
[216] | 420 | & + zcoef1 * ( ( rhd(ji+1,jj,jk)+rhd(ji+1,jj,jk-1) ) & |
---|
| 421 | & - ( rhd(ji ,jj,jk)+rhd(ji ,jj,jk-1) ) ) / e1u(ji,jj) |
---|
[3] | 422 | |
---|
| 423 | zhpj(ji,jj,jk) = zhpj(ji,jj,jk-1) & |
---|
[216] | 424 | & + zcoef1 * ( ( rhd(ji,jj+1,jk)+rhd(ji,jj+1,jk-1) ) & |
---|
| 425 | & - ( rhd(ji,jj, jk)+rhd(ji,jj ,jk-1) ) ) / e2v(ji,jj) |
---|
[3] | 426 | ! add to the general momentum trend |
---|
| 427 | ua(ji,jj,jk) = ua(ji,jj,jk) + zhpi(ji,jj,jk) |
---|
| 428 | va(ji,jj,jk) = va(ji,jj,jk) + zhpj(ji,jj,jk) |
---|
| 429 | END DO |
---|
| 430 | END DO |
---|
| 431 | END DO |
---|
| 432 | |
---|
[216] | 433 | ! save the hydrostatic pressure ggradient trends for diagnostic |
---|
| 434 | ! momentum trends |
---|
| 435 | IF( l_trddyn ) THEN |
---|
| 436 | zhpi(:,:,:) = ua(:,:,:) - ztdua(:,:,:) |
---|
| 437 | zhpj(:,:,:) = va(:,:,:) - ztdva(:,:,:) |
---|
| 438 | |
---|
| 439 | CALL trd_mod(zhpi, zhpj, jpdtdhpg, 'DYN', kt) |
---|
| 440 | ENDIF |
---|
| 441 | |
---|
[258] | 442 | IF(ln_ctl) THEN ! print sum trends (used for debugging) |
---|
| 443 | CALL prt_ctl(tab3d_1=ua, clinfo1=' hpg - Ua: ', mask1=umask, & |
---|
| 444 | & tab3d_2=va, clinfo2=' Va: ', mask2=vmask, clinfo3='dyn') |
---|
[3] | 445 | ENDIF |
---|
| 446 | |
---|
| 447 | END SUBROUTINE dyn_hpg |
---|
| 448 | |
---|
| 449 | #endif |
---|
| 450 | |
---|
| 451 | !!====================================================================== |
---|
| 452 | END MODULE dynhpg |
---|