- Timestamp:
- 2019-12-05T19:31:55+01:00 (5 years ago)
- File:
-
- 1 edited
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NEMO/branches/2019/dev_r10742_ENHANCE-12_SimonM-Tides/src/OCE/BDY/bdytides.F90
r12065 r12078 30 30 31 31 PUBLIC bdytide_init ! routine called in bdy_init 32 PUBLIC bdytide_update ! routine called in bdy_dta33 32 PUBLIC bdy_dta_tides ! routine called in dyn_spg_ts 34 33 … … 256 255 257 256 258 SUBROUTINE bdytide_update( kt, idx, dta, td, kit, kt_offset )259 !!----------------------------------------------------------------------260 !! *** SUBROUTINE bdytide_update ***261 !!262 !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays.263 !!264 !!----------------------------------------------------------------------265 INTEGER , INTENT(in ) :: kt ! Main timestep counter266 TYPE(OBC_INDEX) , INTENT(in ) :: idx ! OBC indices267 TYPE(OBC_DATA) , INTENT(inout) :: dta ! OBC external data268 TYPE(TIDES_DATA) , INTENT(inout) :: td ! tidal harmonics data269 INTEGER, OPTIONAL, INTENT(in ) :: kit ! Barotropic timestep counter (for timesplitting option)270 INTEGER, OPTIONAL, INTENT(in ) :: kt_offset ! time offset in units of timesteps. NB. if kit271 ! ! is present then units = subcycle timesteps.272 ! ! kt_offset = 0 => get data at "now" time level273 ! ! kt_offset = -1 => get data at "before" time level274 ! ! kt_offset = +1 => get data at "after" time level275 ! ! etc.276 !277 INTEGER :: itide, igrd, ib ! dummy loop indices278 INTEGER :: time_add ! time offset in units of timesteps279 INTEGER, DIMENSION(3) :: ilen0 ! length of boundary data (from OBC arrays)280 REAL(wp) :: z_arg, z_sarg, zflag, zramp ! local scalars281 REAL(wp), DIMENSION(jpmax_harmo) :: z_sist, z_cost282 !!----------------------------------------------------------------------283 !284 ilen0(1) = SIZE(td%ssh(:,1,1))285 ilen0(2) = SIZE(td%u(:,1,1))286 ilen0(3) = SIZE(td%v(:,1,1))287 288 zflag=1289 IF ( PRESENT(kit) ) THEN290 IF ( kit /= 1 ) zflag=0291 ENDIF292 293 IF ( (nsec_day == NINT(0.5_wp * rdt) .OR. kt==nit000) .AND. zflag==1 ) THEN294 !295 kt_tide = kt - (nsec_day - 0.5_wp * rdt)/rdt296 !297 IF(lwp) THEN298 WRITE(numout,*)299 WRITE(numout,*) 'bdytide_update : (re)Initialization of the tidal bdy forcing at kt=',kt300 WRITE(numout,*) '~~~~~~~~~~~~~~ '301 ENDIF302 !303 CALL tide_init_elevation ( idx, td )304 CALL tide_init_velocities( idx, td )305 !306 ENDIF307 308 time_add = 0309 IF( PRESENT(kt_offset) ) THEN310 time_add = kt_offset311 ENDIF312 313 IF( PRESENT(kit) ) THEN314 z_arg = ((kt-kt_tide) * rdt + (kit+0.5_wp*(time_add-1)) * rdt / REAL(nn_baro,wp) )315 ELSE316 z_arg = ((kt-kt_tide)+time_add) * rdt317 ENDIF318 319 ! Linear ramp on tidal component at open boundaries320 zramp = 1._wp321 IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rn_tide_ramp_dt*rday),0._wp),1._wp)322 323 DO itide = 1, nb_harmo324 z_sarg = z_arg * tide_harmonics(itide)%omega325 z_cost(itide) = COS( z_sarg )326 z_sist(itide) = SIN( z_sarg )327 END DO328 329 DO itide = 1, nb_harmo330 igrd=1 ! SSH on tracer grid331 DO ib = 1, ilen0(igrd)332 dta%ssh(ib) = dta%ssh(ib) + zramp*(td%ssh(ib,itide,1)*z_cost(itide) + td%ssh(ib,itide,2)*z_sist(itide))333 END DO334 igrd=2 ! U grid335 DO ib = 1, ilen0(igrd)336 dta%u2d(ib) = dta%u2d(ib) + zramp*(td%u (ib,itide,1)*z_cost(itide) + td%u (ib,itide,2)*z_sist(itide))337 END DO338 igrd=3 ! V grid339 DO ib = 1, ilen0(igrd)340 dta%v2d(ib) = dta%v2d(ib) + zramp*(td%v (ib,itide,1)*z_cost(itide) + td%v (ib,itide,2)*z_sist(itide))341 END DO342 END DO343 !344 END SUBROUTINE bdytide_update345 346 347 257 SUBROUTINE bdy_dta_tides( kt, kit, kt_offset ) 348 258 !!----------------------------------------------------------------------
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