| 1 | MODULE isfdynatf |
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| 2 | !!========================================================================= |
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| 3 | !! *** MODULE isfnxt *** |
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| 4 | !! Ice shelf update: compute the dynatf ice shelf contribution |
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| 5 | !!========================================================================= |
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| 6 | !! History : OPA ! 2019-09 (P. Mathiot) Original code |
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| 7 | !!------------------------------------------------------------------------- |
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| 8 | |
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| 9 | !!------------------------------------------------------------------------- |
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| 10 | !! isfnxt : apply correction needed for the ice shelf to ensure conservation |
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| 11 | !!------------------------------------------------------------------------- |
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| 12 | |
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| 13 | USE isf_oce |
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| 14 | |
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| 15 | USE phycst , ONLY: r1_rho0 ! physical constant |
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| 16 | USE dom_oce, ONLY: tmask, ssmask, ht, e3t, r1_e1e2t ! time and space domain |
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| 17 | |
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| 18 | USE in_out_manager |
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| 19 | |
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| 20 | IMPLICIT NONE |
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| 21 | |
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| 22 | PRIVATE |
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| 23 | |
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| 24 | PUBLIC isf_dynatf |
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| 25 | !! * Substitutions |
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| 26 | # include "do_loop_substitute.h90" |
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| 27 | |
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| 28 | CONTAINS |
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| 29 | |
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| 30 | SUBROUTINE isf_dynatf ( kt, Kmm, pe3t_f, pcoef ) |
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| 31 | !!-------------------------------------------------------------------- |
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| 32 | !! *** ROUTINE isf_dynatf *** |
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| 33 | !! |
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| 34 | !! ** Purpose : compute the ice shelf volume filter correction for cavity, param, ice sheet coupling case |
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| 35 | !! |
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| 36 | !!-------------------------- OUT ------------------------------------- |
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| 37 | INTEGER , INTENT(in ) :: kt ! ocean time step |
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| 38 | INTEGER , INTENT(in ) :: Kmm ! ocean time level index |
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| 39 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pe3t_f ! time filtered scale factor to be corrected |
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| 40 | ! |
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| 41 | REAL(wp) , INTENT(in ) :: pcoef ! rn_atfp * rn_Dt * r1_rho0 |
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| 42 | !!-------------------------------------------------------------------- |
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| 43 | INTEGER :: jk ! loop index |
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| 44 | !!-------------------------------------------------------------------- |
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| 45 | ! |
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| 46 | ! ice shelf cavity |
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| 47 | IF ( ln_isfcav_mlt ) CALL isf_dynatf_mlt(Kmm, pe3t_f, misfkt_cav, misfkb_cav, rhisf_tbl_cav, rfrac_tbl_cav, fwfisf_cav, fwfisf_cav_b, pcoef) |
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| 48 | ! |
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| 49 | ! ice shelf parametrised |
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| 50 | IF ( ln_isfpar_mlt ) CALL isf_dynatf_mlt(Kmm, pe3t_f, misfkt_par, misfkb_par, rhisf_tbl_par, rfrac_tbl_par, fwfisf_par, fwfisf_par_b, pcoef) |
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| 51 | ! |
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| 52 | IF ( ln_isfcpl .AND. ln_rstart .AND. kt == nit000+1 ) THEN |
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| 53 | DO jk = 1, jpkm1 |
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| 54 | pe3t_f(:,:,jk) = pe3t_f(:,:,jk) - pcoef * risfcpl_vol(:,:,jk) * r1_e1e2t(:,:) |
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| 55 | END DO |
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| 56 | END IF |
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| 57 | ! |
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| 58 | END SUBROUTINE isf_dynatf |
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| 59 | |
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| 60 | SUBROUTINE isf_dynatf_mlt ( Kmm, pe3t_f, ktop, kbot, phtbl, pfrac, pfwf, pfwf_b, pcoef ) |
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| 61 | !!-------------------------------------------------------------------- |
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| 62 | !! *** ROUTINE isf_dynatf_mlt *** |
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| 63 | !! |
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| 64 | !! ** Purpose : compute the ice shelf volume filter correction for cavity or param |
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| 65 | !! |
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| 66 | !!-------------------------- IN ------------------------------------- |
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| 67 | INTEGER , INTENT(in ) :: Kmm ! ocean time level index |
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| 68 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pe3t_f ! time-filtered scale factor to be corrected |
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| 69 | INTEGER , DIMENSION(jpi,jpj) , INTENT(in ) :: ktop , kbot ! top and bottom level of tbl |
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| 70 | REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: pfrac, phtbl ! fraction of bottom cell included in tbl, tbl thickness |
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| 71 | REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: pfwf , pfwf_b ! now/before fwf |
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| 72 | REAL(wp), INTENT(in ) :: pcoef ! rn_atfp * rn_Dt * r1_rho0 |
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| 73 | !!---------------------------------------------------------------------- |
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| 74 | INTEGER :: ji,jj,jk |
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| 75 | REAL(wp), DIMENSION(jpi,jpj) :: zfwfinc |
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| 76 | !!---------------------------------------------------------------------- |
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| 77 | ! |
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| 78 | ! compute fwf conservation correction |
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| 79 | zfwfinc(:,:) = pcoef * ( pfwf_b(:,:) - pfwf(:,:) ) / ( ht(:,:) + 1._wp - ssmask(:,:) ) * r1_rho0 |
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| 80 | ! |
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| 81 | ! add the increment |
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| 82 | DO jk = 1, jpkm1 |
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| 83 | pe3t_f(:,:,jk) = pe3t_f(:,:,jk) - tmask(:,:,jk) * zfwfinc(:,:) * e3t(:,:,jk,Kmm) |
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| 84 | END DO |
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| 85 | ! |
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| 86 | END SUBROUTINE isf_dynatf_mlt |
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| 87 | |
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| 88 | END MODULE isfdynatf |
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