- Timestamp:
- 2013-07-11T15:59:14+02:00 (11 years ago)
- File:
-
- 1 edited
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branches/2013/dev_r3867_MERCATOR1_DYN/NEMOGCM/NEMO/OPA_SRC/BDY/bdytides.F90
r3651 r3970 9 9 !! 3.3 ! 2010-09 (D.Storkey and E.O'Dea) bug fixes 10 10 !! 3.4 ! 2012-09 (G. Reffray and J. Chanut) New inputs + mods 11 !! 3.5 ! 2013-07 (J. Chanut) Compliant with time splitting changes 11 12 !!---------------------------------------------------------------------- 12 13 #if defined key_bdy … … 32 33 ! USE tide_mod ! Useless ?? 33 34 USE fldread, ONLY: fld_map 35 USE dynspg_oce, ONLY: lk_dynspg_ts 34 36 35 37 IMPLICIT NONE … … 38 40 PUBLIC bdytide_init ! routine called in bdy_init 39 41 PUBLIC bdytide_update ! routine called in bdy_dta 42 PUBLIC bdy_dta_tides ! routine called in dyn_spg_ts 40 43 41 44 TYPE, PUBLIC :: TIDES_DATA !: Storage for external tidal harmonics data … … 49 52 50 53 TYPE(TIDES_DATA), PUBLIC, DIMENSION(jp_bdy), TARGET :: tides !: External tidal harmonics data 54 TYPE(OBC_DATA) , PRIVATE, DIMENSION(jp_bdy) :: dta_bdy_s !: bdy external data (slow component) 51 55 52 56 !!---------------------------------------------------------------------- … … 252 256 ENDIF 253 257 ! 258 IF ( lk_dynspg_ts ) THEN ! Allocate arrays to save slowly varying boundary data during 259 ! time splitting integration 260 ALLOCATE( dta_bdy_s(ib_bdy)%ssh ( ilen0(1) ) ) 261 ALLOCATE( dta_bdy_s(ib_bdy)%u2d ( ilen0(2) ) ) 262 ALLOCATE( dta_bdy_s(ib_bdy)%v2d ( ilen0(3) ) ) 263 dta_bdy_s(ib_bdy)%ssh(:) = 0.e0 264 dta_bdy_s(ib_bdy)%u2d(:) = 0.e0 265 dta_bdy_s(ib_bdy)%v2d(:) = 0.e0 266 ENDIF 267 ! 254 268 ENDIF ! nn_dyn2d_dta(ib_bdy) .ge. 2 255 269 ! … … 318 332 319 333 IF( PRESENT(jit) ) THEN 320 z_arg = ( ((kt-kt_tide)-1) * rdt + (jit+time_add) * rdt / REAL(nn_baro,wp) )334 z_arg = ((kt-kt_tide) * rdt + (jit+0.5*(time_add-1)) * rdt / REAL(nn_baro,wp) ) 321 335 ELSE 322 336 z_arg = ((kt-kt_tide)+time_add) * rdt … … 324 338 325 339 ! Linear ramp on tidal component at open boundaries 326 zramp = 1. 327 IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rdttideramp*rday),0. ),1.)340 zramp = 1._wp 341 IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rdttideramp*rday),0._wp),1._wp) 328 342 329 343 DO itide = 1, nb_harmo … … 351 365 ! 352 366 END SUBROUTINE bdytide_update 367 368 SUBROUTINE bdy_dta_tides( kt, kit, time_offset ) 369 !!---------------------------------------------------------------------- 370 !! *** SUBROUTINE bdy_dta_tides *** 371 !! 372 !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. 373 !! 374 !!---------------------------------------------------------------------- 375 INTEGER, INTENT( in ) :: kt ! Main timestep counter 376 INTEGER, INTENT( in ),OPTIONAL :: kit ! Barotropic timestep counter (for timesplitting option) 377 INTEGER, INTENT( in ),OPTIONAL :: time_offset ! time offset in units of timesteps. NB. if kit 378 ! is present then units = subcycle timesteps. 379 ! time_offset = 0 => get data at "now" time level 380 ! time_offset = -1 => get data at "before" time level 381 ! time_offset = +1 => get data at "after" time level 382 ! etc. 383 !! 384 LOGICAL :: lk_first_btstp ! =.TRUE. if time splitting and first barotropic step 385 INTEGER, DIMENSION(jpbgrd) :: ilen0 386 INTEGER, DIMENSION(1:jpbgrd) :: nblen, nblenrim ! short cuts 387 INTEGER :: itide, ib_bdy, ib, igrd ! loop indices 388 INTEGER :: time_add ! time offset in units of timesteps 389 REAL(wp) :: z_arg, z_sarg, zramp, zoff, z_cost, z_sist 390 !!---------------------------------------------------------------------- 391 392 IF( nn_timing == 1 ) CALL timing_start('bdy_dta_tides') 393 394 lk_first_btstp=.TRUE. 395 IF ( PRESENT(kit).AND.( kit /= 1 ) ) THEN ; lk_first_btstp=.FALSE. ; ENDIF 396 397 time_add = 0 398 IF( PRESENT(time_offset) ) THEN 399 time_add = time_offset 400 ENDIF 401 402 ! Absolute time from model initialization: 403 IF( PRESENT(kit) ) THEN 404 z_arg = ( kt + (kit+0.5*(time_add-1)) / REAL(nn_baro,wp) ) * rdt 405 ELSE 406 z_arg = ( kt + time_add ) * rdt 407 ENDIF 408 409 ! Linear ramp on tidal component at open boundaries 410 zramp = 1. 411 IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg - nit000*rdt)/(rdttideramp*rday),0.),1.) 412 413 DO ib_bdy = 1,nb_bdy 414 415 ! line below should be simplified (runoff case) 416 IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(nn_tra(ib_bdy).NE.4)) THEN 417 418 nblen(1:jpbgrd) = idx_bdy(ib_bdy)%nblen(1:jpbgrd) 419 nblenrim(1:jpbgrd) = idx_bdy(ib_bdy)%nblenrim(1:jpbgrd) 420 421 IF( nn_dyn2d(ib_bdy) .eq. jp_frs ) THEN 422 ilen0(:)=nblen(:) 423 ELSE 424 ilen0(:)=nblenrim(:) 425 ENDIF 426 427 ! We refresh nodal factors every day below 428 ! This should be done somewhere else 429 IF ( nsec_day == NINT(0.5 * rdttra(1)) .AND. lk_first_btstp ) THEN 430 ! 431 kt_tide = kt 432 ! 433 IF(lwp) THEN 434 WRITE(numout,*) 435 WRITE(numout,*) 'bdy_tide_dta : Refresh nodal factors for tidal open bdy data at kt=',kt 436 WRITE(numout,*) '~~~~~~~~~~~~~~ ' 437 ENDIF 438 ! 439 CALL tide_init_elevation ( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) 440 CALL tide_init_velocities( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) 441 ! 442 ENDIF 443 zoff = -kt_tide * rdt ! time offset relative to nodal factor computation time 444 ! 445 ! If time splitting, save data at first barotropic iteration 446 IF ( PRESENT(kit) ) THEN 447 IF ( lk_first_btstp ) THEN ! Save slow varying open boundary data: 448 dta_bdy_s(ib_bdy)%ssh(1:ilen0(1)) = dta_bdy(ib_bdy)%ssh(1:ilen0(1)) 449 dta_bdy_s(ib_bdy)%u2d(1:ilen0(2)) = dta_bdy(ib_bdy)%u2d(1:ilen0(2)) 450 dta_bdy_s(ib_bdy)%v2d(1:ilen0(3)) = dta_bdy(ib_bdy)%v2d(1:ilen0(3)) 451 452 ELSE ! Initialize arrays from slow varying open boundary data: 453 dta_bdy(ib_bdy)%ssh(1:ilen0(1)) = dta_bdy_s(ib_bdy)%ssh(1:ilen0(1)) 454 dta_bdy(ib_bdy)%u2d(1:ilen0(2)) = dta_bdy_s(ib_bdy)%u2d(1:ilen0(2)) 455 dta_bdy(ib_bdy)%v2d(1:ilen0(3)) = dta_bdy_s(ib_bdy)%v2d(1:ilen0(3)) 456 ENDIF 457 ENDIF 458 ! 459 ! Update open boundary data arrays: 460 DO itide = 1, nb_harmo 461 ! 462 z_sarg = (z_arg + zoff) * omega_tide(itide) 463 z_cost = zramp * COS( z_sarg ) 464 z_sist = zramp * SIN( z_sarg ) 465 ! 466 igrd=1 ! SSH on tracer grid 467 DO ib = 1, ilen0(igrd) 468 dta_bdy(ib_bdy)%ssh(ib) = dta_bdy(ib_bdy)%ssh(ib) + & 469 & ( tides(ib_bdy)%ssh(ib,itide,1)*z_cost + & 470 & tides(ib_bdy)%ssh(ib,itide,2)*z_sist ) 471 END DO 472 ! 473 igrd=2 ! U grid 474 DO ib = 1, ilen0(igrd) 475 dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) + & 476 & ( tides(ib_bdy)%u(ib,itide,1)*z_cost + & 477 & tides(ib_bdy)%u(ib,itide,2)*z_sist ) 478 END DO 479 ! 480 igrd=3 ! V grid 481 DO ib = 1, ilen0(igrd) 482 dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) + & 483 & ( tides(ib_bdy)%v(ib,itide,1)*z_cost + & 484 & tides(ib_bdy)%v(ib,itide,2)*z_sist ) 485 END DO 486 END DO 487 END IF 488 END DO 489 ! 490 IF( nn_timing == 1 ) CALL timing_stop('bdy_dta_tides') 491 ! 492 END SUBROUTINE bdy_dta_tides 353 493 354 494 SUBROUTINE tide_init_elevation( idx, td ) … … 457 597 WRITE(*,*) 'bdytide_update: You should not have seen this print! error?', kt, jit 458 598 END SUBROUTINE bdytide_update 599 SUBROUTINE bdy_dta_tides( kt, jit ) ! Empty routine 600 WRITE(*,*) 'bdy_dta_tides: You should not have seen this print! error?', kt, jit 601 END SUBROUTINE bdy_dta_tides 459 602 #endif 460 603 461 604 !!====================================================================== 462 605 END MODULE bdytides 606
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