[2952] | 1 | MODULE updtide |
---|
[4292] | 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE updtide *** |
---|
| 4 | !! Initialization of tidal forcing |
---|
| 5 | !!====================================================================== |
---|
| 6 | !! History : 9.0 ! 07 (O. Le Galloudec) Original code |
---|
| 7 | !!---------------------------------------------------------------------- |
---|
| 8 | !! upd_tide : update tidal potential |
---|
| 9 | !!---------------------------------------------------------------------- |
---|
| 10 | USE oce ! ocean dynamics and tracers variables |
---|
| 11 | USE dom_oce ! ocean space and time domain |
---|
| 12 | USE in_out_manager ! I/O units |
---|
| 13 | USE phycst ! physical constant |
---|
| 14 | USE sbctide ! tide potential variable |
---|
| 15 | USE tideini, ONLY: ln_tide_ramp, rdttideramp |
---|
[2952] | 16 | |
---|
[4292] | 17 | IMPLICIT NONE |
---|
| 18 | PUBLIC |
---|
[2952] | 19 | |
---|
[4292] | 20 | PUBLIC upd_tide ! called in dynspg_... modules |
---|
| 21 | |
---|
| 22 | !!---------------------------------------------------------------------- |
---|
[9598] | 23 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
---|
[5215] | 24 | !! $Id$ |
---|
[10068] | 25 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
[4292] | 26 | !!---------------------------------------------------------------------- |
---|
[2952] | 27 | CONTAINS |
---|
| 28 | |
---|
[11536] | 29 | SUBROUTINE upd_tide( kt, kit, kt_offset ) |
---|
[4292] | 30 | !!---------------------------------------------------------------------- |
---|
| 31 | !! *** ROUTINE upd_tide *** |
---|
| 32 | !! |
---|
| 33 | !! ** Purpose : provide at each time step the astronomical potential |
---|
| 34 | !! |
---|
| 35 | !! ** Method : computed from pulsation and amplitude of all tide components |
---|
| 36 | !! |
---|
| 37 | !! ** Action : pot_astro actronomical potential |
---|
| 38 | !!---------------------------------------------------------------------- |
---|
| 39 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
---|
[5913] | 40 | INTEGER, INTENT(in), OPTIONAL :: kit ! external mode sub-time-step index (lk_dynspg_ts=T) |
---|
[11536] | 41 | INTEGER, INTENT(in), OPTIONAL :: kt_offset ! time offset in number |
---|
[5913] | 42 | ! of internal steps (lk_dynspg_ts=F) |
---|
| 43 | ! of external steps (lk_dynspg_ts=T) |
---|
[4292] | 44 | ! |
---|
[11536] | 45 | INTEGER :: ioffset ! local integer |
---|
[4292] | 46 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 47 | REAL(wp) :: zt, zramp ! local scalar |
---|
| 48 | REAL(wp), DIMENSION(nb_harmo) :: zwt |
---|
| 49 | !!---------------------------------------------------------------------- |
---|
| 50 | ! |
---|
| 51 | ! ! tide pulsation at model time step (or sub-time-step) |
---|
| 52 | zt = ( kt - kt_tide ) * rdt |
---|
| 53 | ! |
---|
[11536] | 54 | ioffset = 0 |
---|
| 55 | IF( PRESENT( kt_offset ) ) ioffset = kt_offset |
---|
[4292] | 56 | ! |
---|
[5913] | 57 | IF( PRESENT( kit ) ) THEN |
---|
[11536] | 58 | zt = zt + ( kit + ioffset - 1 ) * rdt / REAL( nn_baro, wp ) |
---|
[4292] | 59 | ELSE |
---|
[11536] | 60 | zt = zt + ioffset * rdt |
---|
[4292] | 61 | ENDIF |
---|
| 62 | ! |
---|
| 63 | zwt(:) = omega_tide(:) * zt |
---|
[2952] | 64 | |
---|
[4292] | 65 | pot_astro(:,:) = 0._wp ! update tidal potential (sum of all harmonics) |
---|
| 66 | DO jk = 1, nb_harmo |
---|
| 67 | pot_astro(:,:) = pot_astro(:,:) + amp_pot(:,:,jk) * COS( zwt(jk) + phi_pot(:,:,jk) ) |
---|
| 68 | END DO |
---|
| 69 | ! |
---|
| 70 | IF( ln_tide_ramp ) THEN ! linear increase if asked |
---|
| 71 | zt = ( kt - nit000 ) * rdt |
---|
[11536] | 72 | IF( PRESENT( kit ) ) zt = zt + ( kit + ioffset -1) * rdt / REAL( nn_baro, wp ) |
---|
[4292] | 73 | zramp = MIN( MAX( zt / (rdttideramp*rday) , 0._wp ) , 1._wp ) |
---|
| 74 | pot_astro(:,:) = zramp * pot_astro(:,:) |
---|
| 75 | ENDIF |
---|
| 76 | ! |
---|
| 77 | END SUBROUTINE upd_tide |
---|
[2952] | 78 | |
---|
| 79 | !!====================================================================== |
---|
| 80 | |
---|
| 81 | END MODULE updtide |
---|