| 1 | MODULE ocesbc |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE ocesbc *** |
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| 4 | !! Ocean surface boundary conditions |
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| 5 | !!====================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! oce_sbc : ??? |
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| 9 | !! oce_sbc_dmp : ??? |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! * Modules used |
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| 12 | USE oce ! dynamics and tracers variables |
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| 13 | USE dom_oce ! ocean space domain variables |
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| 14 | USE cpl_oce ! coupled ocean-atmosphere variables |
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| 15 | USE ice_oce ! sea-ice variable |
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| 16 | USE blk_oce ! bulk variables |
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| 17 | USE flx_oce ! sea-ice/ocean forcings variables |
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| 18 | USE phycst ! Define parameters for the routines |
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| 19 | USE taumod ! surface stress forcing |
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| 20 | USE flxmod ! thermohaline fluxes |
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| 21 | USE flxrnf ! runoffs forcing |
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| 22 | USE tradmp ! damping salinity trend |
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| 23 | USE dtatem ! ocean temperature data |
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| 24 | USE dtasal ! ocean salinity data |
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| 25 | USE ocfzpt ! surface ocean freezing point |
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| 26 | USE lbclnk ! ocean lateral boundary condition |
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| 27 | USE lib_mpp ! distribued memory computing library |
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| 28 | USE in_out_manager ! I/O manager |
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| 29 | USE prtctl ! Print control |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | PRIVATE |
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| 33 | |
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| 34 | !! * Accessibility |
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| 35 | PUBLIC oce_sbc ! routine called by step |
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| 36 | |
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| 37 | !! * Shared module variables |
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| 38 | REAL(wp), PUBLIC :: & !: |
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| 39 | aplus, aminus, & !: |
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| 40 | empold = 0.e0 !: current year freshwater budget correction |
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| 41 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
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| 42 | qt , & !: total surface heat flux (w/m2) |
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| 43 | qsr , & !: solar radiation (w/m2) |
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| 44 | emp , & !: evaporation minus precipitation (kg/m2/s = mm/s) |
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| 45 | emps, & !: evaporation - precipitation (free surface) |
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| 46 | qrp , & !: heat flux damping (w/m2) |
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| 47 | erp !: evaporation damping (kg/m2/s = mm/s) |
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| 48 | #if ! defined key_dynspg_rl |
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| 49 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: & !: |
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| 50 | dmp !: internal dampind term |
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| 51 | #endif |
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| 52 | |
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| 53 | # include "domzgr_substitute.h90" |
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| 54 | # include "vectopt_loop_substitute.h90" |
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| 55 | |
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| 56 | !!---------------------------------------------------------------------- |
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| 57 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 58 | !! $Header$ |
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| 59 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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| 60 | !!---------------------------------------------------------------------- |
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| 61 | CONTAINS |
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| 62 | |
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| 63 | #if defined key_ice_lim |
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| 64 | !!---------------------------------------------------------------------- |
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| 65 | !! 'key_ice_lim' : LIM sea-ice model |
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| 66 | !!---------------------------------------------------------------------- |
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| 67 | # if defined key_coupled |
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| 68 | !!---------------------------------------------------------------------- |
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| 69 | !! 'key_coupled' : Coupled Ocean/Atmosphere |
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| 70 | !!---------------------------------------------------------------------- |
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| 71 | |
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| 72 | SUBROUTINE oce_sbc( kt ) |
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| 73 | !!--------------------------------------------------------------------- |
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| 74 | !! *** ROUTINE oce_sbc *** |
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| 75 | !! |
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| 76 | !! ** Purpose : Ocean surface boundaries conditions with |
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| 77 | !! Louvain la Neuve Sea Ice Model in coupled mode |
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| 78 | !! |
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| 79 | !! History : |
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| 80 | !! 1.0 ! 00-10 (O. Marti) Original code |
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| 81 | !! 2.0 ! 02-12 (G. Madec) F90: Free form and module |
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| 82 | !! 9.0 ! 05-11 (V. Garnier) Surface pressure gradient organization |
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| 83 | !!---------------------------------------------------------------------- |
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| 84 | !! * Arguments |
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| 85 | INTEGER, INTENT( in ) :: kt ! ocean time step |
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| 86 | |
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| 87 | !! * Local declarations |
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| 88 | INTEGER :: ji, jj ! dummy loop indices |
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| 89 | REAL(wp) :: ztx, ztaux, zty, ztauy |
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| 90 | REAL(wp) :: ztdta, ztgel, zqrp |
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| 91 | !!---------------------------------------------------------------------- |
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| 92 | |
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| 93 | ! 1. initialization to zero at kt = nit000 |
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| 94 | ! --------------------------------------- |
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| 95 | |
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| 96 | IF( kt == nit000 ) THEN |
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| 97 | qsr (:,:) = 0.e0 |
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| 98 | freeze(:,:) = 0.e0 |
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| 99 | qt (:,:) = 0.e0 |
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| 100 | qrp (:,:) = 0.e0 |
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| 101 | emp (:,:) = 0.e0 |
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| 102 | emps (:,:) = 0.e0 |
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| 103 | erp (:,:) = 0.e0 |
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| 104 | #if ! defined key_dynspg_rl |
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| 105 | dmp (:,:) = 0.e0 |
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| 106 | #endif |
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| 107 | ENDIF |
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| 108 | |
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| 109 | IF( MOD( kt-1, nfice ) == 0 ) THEN |
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| 110 | |
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| 111 | CALL oce_sbc_dmp ! Computation of internal and evaporation damping terms |
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| 112 | |
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| 113 | ! Surface heat flux (W/m2) |
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| 114 | ! ----------------------- |
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| 115 | |
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| 116 | ! restoring heat flux |
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| 117 | DO jj = 1, jpj |
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| 118 | DO ji = 1, jpi |
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| 119 | ztgel = fzptn(ji,jj) |
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| 120 | #if defined key_dtasst |
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| 121 | ztdta = MAX( sst(ji,jj), ztgel ) |
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| 122 | #else |
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| 123 | ztdta = MAX( t_dta(ji,jj,1), ztgel ) |
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| 124 | #endif |
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| 125 | zqrp = dqdt0 * ( tb(ji,jj,1) - ztdta ) |
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| 126 | |
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| 127 | qrp(ji,jj) = (1.0-freeze(ji,jj) ) * zqrp |
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| 128 | END DO |
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| 129 | END DO |
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| 130 | |
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| 131 | ! non solar heat flux + solar flux + restoring |
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| 132 | qt (:,:) = fnsolar(:,:) + fsolar(:,:) + qrp(:,:) |
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| 133 | |
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| 134 | ! solar flux |
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| 135 | qsr(:,:) = fsolar(:,:) |
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| 136 | |
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| 137 | #if ! defined key_dynspg_rl |
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| 138 | ! total concentration/dilution effect (use on SSS) |
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| 139 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) |
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| 140 | |
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| 141 | ! total volume flux (use on sea-surface height) |
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| 142 | emp (:,:) = fmass(:,:) - dmp(:,:) + runoff(:,:) + erp(:,:) |
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| 143 | #else |
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| 144 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
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| 145 | ! freshwater flux |
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| 146 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) |
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| 147 | emp (:,:) = emps(:,:) |
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| 148 | #endif |
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| 149 | |
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| 150 | DO jj = 1, jpjm1 |
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| 151 | DO ji = 1, fs_jpim1 ! vertor opt. |
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| 152 | ztx = 0.5 * ( freeze(ji+1,jj) + freeze(ji+1,jj+1) ) |
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| 153 | ztaux = 0.5 * ( ftaux (ji+1,jj) + ftaux (ji+1,jj+1) ) |
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| 154 | taux(ji,jj) = (1.0-ztx) * taux(ji,jj) + ztx * ztaux |
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| 155 | |
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| 156 | zty = 0.5 * ( freeze(ji,jj+1) + freeze(ji+1,jj+1) ) |
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| 157 | ztauy = 0.5 * ( ftauy (ji,jj+1) + ftauy (ji+1,jj+1) ) |
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| 158 | tauy(ji,jj) = (1.0-zty) * tauy(ji,jj) + zty * ztauy |
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| 159 | END DO |
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| 160 | END DO |
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| 161 | CALL lbc_lnk( taux, 'U', -1. ) |
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| 162 | CALL lbc_lnk( tauy, 'V', -1. ) |
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| 163 | |
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| 164 | ! Re-initialization of fluxes |
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| 165 | sst_io(:,:) = 0.e0 |
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| 166 | sss_io(:,:) = 0.e0 |
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| 167 | u_io (:,:) = 0.e0 |
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| 168 | v_io (:,:) = 0.e0 |
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| 169 | gtaux (:,:) = 0.e0 |
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| 170 | gtauy (:,:) = 0.e0 |
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| 171 | |
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| 172 | ENDIF |
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| 173 | |
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| 174 | END SUBROUTINE oce_sbc |
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| 175 | |
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| 176 | # elif defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
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| 177 | !!---------------------------------------------------------------------- |
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| 178 | !! 'key_ice_lim' with LIM sea-ice model |
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| 179 | !!---------------------------------------------------------------------- |
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| 180 | |
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| 181 | SUBROUTINE oce_sbc( kt ) |
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| 182 | !!--------------------------------------------------------------------- |
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| 183 | !! *** ROUTINE oce_sbc *** |
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| 184 | !! |
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| 185 | !! ** Purpose : - Ocean surface boundary conditions with LIM sea-ice |
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| 186 | !! model in forced mode using bulk formulea |
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| 187 | !! |
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| 188 | !! History : |
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| 189 | !! 1.0 ! 99-11 (M. Imbard) Original code |
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| 190 | !! ! 01-03 (D. Ludicone, E. Durand, G. Madec) free surf. |
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| 191 | !! 2.0 ! 02-09 (G. Madec, C. Ethe) F90: Free form and module |
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| 192 | !! 9.0 ! 05-11 (V. Garnier) Surface pressure gradient organization |
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| 193 | !!---------------------------------------------------------------------- |
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| 194 | !! * arguments |
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| 195 | INTEGER, INTENT( in ) :: kt ! ocean time step |
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| 196 | |
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| 197 | !! * Local declarations |
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| 198 | INTEGER :: ji, jj ! dummy loop indices |
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| 199 | REAL(wp) :: ztx, ztaux, zty, ztauy |
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| 200 | !!---------------------------------------------------------------------- |
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| 201 | |
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| 202 | ! 1. initialization to zero at kt = nit000 |
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| 203 | ! --------------------------------------- |
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| 204 | |
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| 205 | IF( kt == nit000 ) THEN |
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| 206 | qsr (:,:) = 0.e0 |
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| 207 | qt (:,:) = 0.e0 |
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| 208 | qrp (:,:) = 0.e0 |
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| 209 | emp (:,:) = 0.e0 |
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| 210 | emps (:,:) = 0.e0 |
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| 211 | erp (:,:) = 0.e0 |
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| 212 | #if ! defined key_dynspg_rl |
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| 213 | dmp (:,:) = 0.e0 |
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| 214 | #endif |
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| 215 | ENDIF |
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| 216 | |
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| 217 | IF( MOD( kt-1, nfice ) == 0 ) THEN |
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| 218 | |
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| 219 | CALL oce_sbc_dmp ! Computation of internal and evaporation damping terms |
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| 220 | |
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| 221 | ! Surface Ocean fluxes |
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| 222 | ! ==================== |
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| 223 | |
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| 224 | ! Surface heat flux (W/m2) |
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| 225 | ! ----------------- |
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| 226 | |
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| 227 | qt (:,:) = fnsolar(:,:) + fsolar(:,:) ! non solar heat flux + solar flux |
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| 228 | qsr (:,:) = fsolar(:,:) ! solar flux |
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| 229 | |
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| 230 | #if ! defined key_dynspg_rl |
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| 231 | ! total concentration/dilution effect (use on SSS) |
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| 232 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) + empold |
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| 233 | |
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| 234 | ! total volume flux (use on sea-surface height) |
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| 235 | emp (:,:) = fmass(:,:) - dmp(:,:) + runoff(:,:) + erp(:,:) + empold |
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| 236 | #else |
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| 237 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
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| 238 | emps(:,:) = fmass(:,:) + fsalt(:,:) + runoff(:,:) + erp(:,:) ! freshwater flux |
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| 239 | emp (:,:) = emps(:,:) |
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| 240 | |
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| 241 | #endif |
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| 242 | |
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| 243 | ! Surface stress |
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| 244 | ! -------------- |
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| 245 | |
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| 246 | ! update the stress beloww sea-ice area |
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| 247 | DO jj = 1, jpjm1 |
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| 248 | DO ji = 1, fs_jpim1 ! vertor opt. |
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| 249 | ztx = MAX( freezn(ji,jj), freezn(ji,jj+1) ) ! ice/ocean indicator at U- and V-points |
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| 250 | zty = MAX( freezn(ji,jj), freezn(ji+1,jj) ) |
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| 251 | ztaux = 0.5 *( ftaux(ji+1,jj) + ftaux(ji+1,jj+1) ) ! ice-ocean stress at U- and V-points |
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| 252 | ztauy = 0.5 *( ftauy(ji,jj+1) + ftauy(ji+1,jj+1) ) |
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| 253 | taux(ji,jj) = (1.-ztx) * taux(ji,jj) + ztx * ztaux ! stress at the ocean surface |
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| 254 | tauy(ji,jj) = (1.-zty) * tauy(ji,jj) + zty * ztauy |
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| 255 | END DO |
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| 256 | END DO |
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| 257 | |
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| 258 | ! boundary condition on the stress (taux,tauy) |
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| 259 | CALL lbc_lnk( taux, 'U', -1. ) |
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| 260 | CALL lbc_lnk( tauy, 'V', -1. ) |
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| 261 | |
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| 262 | ! Re-initialization of fluxes |
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| 263 | sst_io(:,:) = 0.e0 |
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| 264 | sss_io(:,:) = 0.e0 |
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| 265 | u_io (:,:) = 0.e0 |
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| 266 | v_io (:,:) = 0.e0 |
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| 267 | |
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| 268 | ENDIF |
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| 269 | |
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| 270 | END SUBROUTINE oce_sbc |
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| 271 | |
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| 272 | # else |
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| 273 | !!---------------------------------------------------------------------- |
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| 274 | !! Error option LIM sea-ice model requires bulk formulea |
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| 275 | !!---------------------------------------------------------------------- |
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| 276 | This line forced a compilation error |
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| 277 | # endif |
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| 278 | |
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| 279 | #else |
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| 280 | !!---------------------------------------------------------------------- |
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| 281 | !! Default option NO LIM sea-ice model |
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| 282 | !!---------------------------------------------------------------------- |
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| 283 | # if defined key_coupled |
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| 284 | !!---------------------------------------------------------------------- |
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| 285 | !! 'key_coupled' : Coupled Ocean/Atmosphere |
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| 286 | !!---------------------------------------------------------------------- |
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| 287 | |
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| 288 | SUBROUTINE oce_sbc( kt ) |
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| 289 | !!--------------------------------------------------------------------- |
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| 290 | !! *** ROUTINE oce_sbc *** |
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| 291 | !! |
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| 292 | !! ** Purpose : Ocean surface boundaries conditions in |
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| 293 | !! coupled ocean/atmosphere case without sea-ice |
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| 294 | !! |
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| 295 | !! History : |
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| 296 | !! 1.0 ! 00-10 (O. Marti) Original code |
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| 297 | !! 2.0 ! 02-12 (G. Madec) F90: Free form and module |
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| 298 | !!---------------------------------------------------------------------- |
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| 299 | !! * Modules used |
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| 300 | USE cpl_oce ! coupled ocean-atmosphere variables |
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| 301 | |
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| 302 | !! * Arguments |
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| 303 | INTEGER, INTENT( in ) :: kt ! ocean time step index |
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| 304 | |
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| 305 | !! * Local declarations |
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| 306 | INTEGER :: ji, jj, jf ! dummy loop indices |
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| 307 | REAL(wp) :: ztgel, & ! temporary scalars |
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| 308 | zice, zhemis, zqrp, zqri, & ! " " |
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| 309 | zq, zqi, zerp, ze, zei, zro ! " " |
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| 310 | !!---------------------------------------------------------------------- |
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| 311 | |
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| 312 | ! Compute fluxes |
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| 313 | ! -------------- |
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| 314 | |
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| 315 | DO jj = 1, jpj |
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| 316 | DO ji = 1, jpi |
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| 317 | |
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| 318 | ztgel = fzptn(ji,jj) ! local freezing temperature |
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| 319 | |
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| 320 | ! opa model ice freeze() |
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| 321 | |
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| 322 | zice = tmask(ji,jj,1) |
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| 323 | IF( tn(ji,jj,1) >= ztgel ) zice = 0. |
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| 324 | freeze(ji,jj) = zice |
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| 325 | |
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| 326 | ! hemisphere indicator (=1 north, =-1 south) |
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| 327 | |
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| 328 | zhemis = float(isign(1, mjg(jj)-(jpjglo/2+1))) |
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| 329 | |
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| 330 | ! a) net downward radiative flux qsr() |
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| 331 | ! - AGCM qsrc if no ice |
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| 332 | ! - zero under ice (zice=1) |
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| 333 | |
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| 334 | qsr(ji,jj) = (1.-zice)*qsrc(ji,jj)*tmask(ji,jj,1) |
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| 335 | |
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| 336 | ! b) heat flux damping term qrp() |
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| 337 | ! - no damping if no ice (zice=0) |
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| 338 | ! - gamma*min(0,t-tgel) if ice (zice=1) |
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| 339 | |
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| 340 | zqrp = 0. |
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| 341 | zqri = dqdt0*MIN( 0., tb(ji,jj,1)-ztgel ) |
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| 342 | qrp(ji,jj) = ( ( 1. - zice ) * zqrp + zice * zqri ) * tmask(ji,jj,1) |
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| 343 | |
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| 344 | |
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| 345 | ! c) net downward heat flux q() = q0 + qrp() |
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| 346 | ! for q0 |
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| 347 | ! - AGCM qc if no ice (zice=0) |
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| 348 | ! - -2 watt/m2 (arctic) or -4 watt/m2 (antarctic) if ice (zice=1) |
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| 349 | zq = qc(ji,jj) |
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| 350 | zqi = -3. + zhemis |
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| 351 | qt(ji,jj) = ( (1.-zice) * zq + zice * zqi ) * tmask(ji,jj,1) + qrp(ji,jj) |
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| 352 | |
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| 353 | ! d) water flux damping term erp() |
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| 354 | ! - no damping |
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| 355 | zerp = 0. |
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| 356 | erp(ji,jj) = zerp |
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| 357 | |
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| 358 | ! e) net upward water flux e() = eo + runoff() + erp() |
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| 359 | ! for e0 |
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| 360 | ! - AGCM if no ice (zice=0) |
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| 361 | ! - 1.mm/day if climatological and opa ice (zice=1) |
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| 362 | ze = ec(ji,jj) |
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| 363 | zei = 1./rday |
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| 364 | zro = runoff(ji,jj) |
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| 365 | emp(ji,jj) = ( ( 1. - zice ) * ze + zice * zei + zro ) * tmask(ji,jj,1) + erp(ji,jj) |
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| 366 | |
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| 367 | ! f) net upward water flux for the salinity surface |
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| 368 | ! boundary condition |
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| 369 | emps(:,:) = emp(:,:) |
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| 370 | |
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| 371 | END DO |
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| 372 | END DO |
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| 373 | |
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| 374 | END SUBROUTINE oce_sbc |
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| 375 | |
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| 376 | # elif defined key_flx_bulk_monthly || defined key_flx_bulk_daily || defined key_flx_forced_daily |
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| 377 | !!------------------------------------------------------------------------- |
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| 378 | !! 'key_flx_bulk_monthly' or 'key_flx_bulk_daily' or bulk formulea |
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| 379 | !! 'key_flx_forced_daily' or no bulk case |
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| 380 | !!------------------------------------------------------------------------- |
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| 381 | |
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| 382 | SUBROUTINE oce_sbc( kt ) |
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| 383 | !!--------------------------------------------------------------------- |
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| 384 | !! *** ROUTINE oce_sbc *** |
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| 385 | !! |
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| 386 | !! ** Purpose : Ocean surface boundary conditions in forced mode |
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| 387 | !! using either flux or bulk formulation. |
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| 388 | !! |
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| 389 | !! History : |
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| 390 | !! 1.0 ! 99-11 (M. Imbard) Original code |
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| 391 | !! ! 01-03 (D. Ludicone, E. Durand, G. Madec) free surf. |
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| 392 | !! 2.0 ! 02-09 (G. Madec, C. Ethe) F90: Free form and module |
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| 393 | !! 9.0 ! 05-11 (V. Garnier) Surface pressure gradient organization |
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| 394 | !!---------------------------------------------------------------------- |
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| 395 | !! * Modules used |
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| 396 | USE daymod ! calendar |
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| 397 | #if ! defined key_dtasst |
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| 398 | USE dtasst, ONLY : rclice ! sea surface temperature data |
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| 399 | #endif |
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| 400 | #if defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
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| 401 | USE blk_oce ! bulk variables |
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| 402 | #endif |
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| 403 | #if defined key_flx_forced_daily |
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| 404 | USE flx_oce ! sea-ice/ocean forcings variables |
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| 405 | #endif |
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| 406 | |
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| 407 | !! * arguments |
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| 408 | INTEGER, INTENT( in ) :: kt ! ocean time step |
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| 409 | |
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| 410 | !! * local declarations |
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| 411 | INTEGER :: ji, jj ! dummy loop arguments |
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| 412 | INTEGER :: i15, ifreq ! |
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| 413 | REAL(wp) :: zxy |
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| 414 | REAL(wp) :: zsice, zqri, zqrp, ztdta, zqrj |
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| 415 | REAL(wp) :: zq, zqi, zhemis |
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| 416 | REAL(wp), DIMENSION(jpi,jpj) :: zeri, zerps, ziclim |
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| 417 | REAL(wp), DIMENSION(jpi,jpj) :: zqt, zqsr, zemp |
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| 418 | !!---------------------------------------------------------------------- |
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| 419 | |
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| 420 | ! 1. initialization to zero at kt = nit000 |
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| 421 | ! --------------------------------------- |
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| 422 | |
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| 423 | IF( kt == nit000 ) THEN |
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| 424 | qsr (:,:) = 0.e0 |
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| 425 | freeze (:,:) = 0.e0 |
|---|
| 426 | qt (:,:) = 0.e0 |
|---|
| 427 | qrp (:,:) = 0.e0 |
|---|
| 428 | emp (:,:) = 0.e0 |
|---|
| 429 | emps (:,:) = 0.e0 |
|---|
| 430 | erp (:,:) = 0.e0 |
|---|
| 431 | #if ! defined key_dynspg_rl |
|---|
| 432 | dmp (:,:) = 0.e0 |
|---|
| 433 | #endif |
|---|
| 434 | ENDIF |
|---|
| 435 | |
|---|
| 436 | #if defined key_flx_bulk_monthly || defined key_flx_bulk_daily |
|---|
| 437 | ifreq = nfbulk |
|---|
| 438 | zqt (:,:) = qsr_oce(:,:) + qnsr_oce(:,:) |
|---|
| 439 | zqsr(:,:) = qsr_oce(:,:) |
|---|
| 440 | zemp(:,:) = evap(:,:) - tprecip(:,:) |
|---|
| 441 | #endif |
|---|
| 442 | |
|---|
| 443 | #if defined key_flx_forced_daily |
|---|
| 444 | ifreq = 1 |
|---|
| 445 | zqt (:,:) = p_qt (:,:) |
|---|
| 446 | zqsr(:,:) = p_qsr(:,:) |
|---|
| 447 | zemp(:,:) = p_emp(:,:) |
|---|
| 448 | #endif |
|---|
| 449 | |
|---|
| 450 | IF( MOD( kt-1, ifreq) == 0 ) THEN |
|---|
| 451 | ! Computation of internal and evaporation damping terms |
|---|
| 452 | CALL oce_sbc_dmp |
|---|
| 453 | |
|---|
| 454 | zsice = - 0.04 / 0.8 ! ratio of isohaline compressibility over isotherme compressibility |
|---|
| 455 | ! ( d rho / dt ) / ( d rho / ds ) ( s = 34, t = -1.8 ) |
|---|
| 456 | ! Flux computation |
|---|
| 457 | DO jj = 1, jpj |
|---|
| 458 | DO ji = 1, jpi |
|---|
| 459 | ! climatological ice |
|---|
| 460 | ziclim(ji,jj) = FLOAT( NINT( rclice(ji,jj,1) ) ) |
|---|
| 461 | |
|---|
| 462 | ! avoid surfreezing point |
|---|
| 463 | tn(ji,jj,1) = MAX( tn(ji,jj,1), fzptn(ji,jj) ) |
|---|
| 464 | |
|---|
| 465 | ! hemisphere indicator (=1 north, =-1 south) |
|---|
| 466 | zhemis = FLOAT( isign(1, mjg(jj) - (jpjdta/2+1) ) ) |
|---|
| 467 | |
|---|
| 468 | ! restoring temperature (ztdta >= to local freezing temperature) |
|---|
| 469 | #if defined key_dtasst |
|---|
| 470 | ztdta = MAX( sst(ji,jj), fzptn(ji,jj) ) |
|---|
| 471 | #else |
|---|
| 472 | ztdta = MAX( t_dta(ji,jj,1), fzptn(ji,jj) ) |
|---|
| 473 | #endif |
|---|
| 474 | |
|---|
| 475 | ! a) net downward radiative flux qsr() |
|---|
| 476 | qsr(ji,jj) = (1.-ziclim(ji,jj)) * zqsr(ji,jj) * tmask(ji,jj,1) |
|---|
| 477 | |
|---|
| 478 | ! b) heat flux damping term qrp() |
|---|
| 479 | ! - gamma*(t-tlevitus) if no climatological ice (ziclim=0) |
|---|
| 480 | ! - gamma*(t-(tgel-1.)) if climatological ice and no opa ice (ziclim=1 zicopa=0) |
|---|
| 481 | ! - gamma*min(0,t-tgel) if climatological and opa ice (ziclim=1 zicopa=1) |
|---|
| 482 | |
|---|
| 483 | zqri = dqdt0 * ( tb(ji,jj,1) - ( fzptn(ji,jj) - 1.) ) |
|---|
| 484 | zqrj = dqdt0 * MIN( 0., tb(ji,jj,1) - fzptn(ji,jj) ) |
|---|
| 485 | |
|---|
| 486 | qrp(ji,jj) = ( ziclim(ji,jj) * ( (1 - freeze(ji,jj)) * zqri & |
|---|
| 487 | & + freeze(ji,jj) * zqrj ) ) * tmask(ji,jj,1) |
|---|
| 488 | |
|---|
| 489 | #if ! defined key_flx_bulk_monthly || ! defined key_flx_bulk_daily |
|---|
| 490 | zqrp = dqdt0 * ( tb(ji,jj,1) - ztdta ) |
|---|
| 491 | qrp(ji,jj) = qrp(ji,jj) + (1. - ziclim(ji,jj)) * zqrp |
|---|
| 492 | # endif |
|---|
| 493 | |
|---|
| 494 | ! c) net downward heat flux q() = q0 + qrp() |
|---|
| 495 | ! for q0 |
|---|
| 496 | ! - ECMWF fluxes if no climatological ice (ziclim=0) |
|---|
| 497 | ! - qrp if climatological ice and no opa ice (ziclim=1 zicopa=0) |
|---|
| 498 | ! - -2 watt/m2 (arctic) or -4 watt/m2 (antarctic) if climatological and opa ice |
|---|
| 499 | ! (ziclim=1 zicopa=1) |
|---|
| 500 | zq = zqt(ji,jj) |
|---|
| 501 | zqi = -3. + zhemis |
|---|
| 502 | qt (ji,jj) = ( (1.-ziclim(ji,jj)) * zq & |
|---|
| 503 | +ziclim(ji,jj) * freeze(ji,jj) * zqi ) & |
|---|
| 504 | * tmask(ji,jj,1) & |
|---|
| 505 | + qrp(ji,jj) |
|---|
| 506 | |
|---|
| 507 | END DO |
|---|
| 508 | END DO |
|---|
| 509 | |
|---|
| 510 | #if ! defined key_dynspg_rl |
|---|
| 511 | ! Free-surface |
|---|
| 512 | |
|---|
| 513 | ! Water flux for zero buoyancy flux if no opa ice and ice clim |
|---|
| 514 | zeri(:,:) = -zsice * qrp(:,:) * ro0cpr * rauw / 34.0 |
|---|
| 515 | zerps(:,:) = ziclim(:,:) * ( (1-freeze(:,:)) * zeri(:,:) ) |
|---|
| 516 | |
|---|
| 517 | ! Contribution to sea level: |
|---|
| 518 | ! net upward water flux emp() = e-p + runoff() + erp() + dmp + empold |
|---|
| 519 | emp (:,:) = zemp(:,:) & ! e-p data |
|---|
| 520 | & + runoff(:,:) & ! runoff data |
|---|
| 521 | & + erp(:,:) & ! restoring term to SSS data |
|---|
| 522 | & + dmp(:,:) & ! freshwater flux associated with internal damping |
|---|
| 523 | & + empold ! domain averaged annual mean correction |
|---|
| 524 | |
|---|
| 525 | ! Contribution to salinity: |
|---|
| 526 | ! net upward water flux emps() = e-p + runoff() + erp() + zerps + empold |
|---|
| 527 | emps(:,:) = zemp(:,:) & |
|---|
| 528 | & + runoff(:,:) & |
|---|
| 529 | & + erp(:,:) & |
|---|
| 530 | & + zerps(:,:) & |
|---|
| 531 | & + empold |
|---|
| 532 | #else |
|---|
| 533 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
|---|
| 534 | ! freshwater flux |
|---|
| 535 | zeri(:,:) = -zsice * qrp(:,:) * ro0cpr * rauw / 34.0 |
|---|
| 536 | zerps(:,:) = ziclim(:,:) * ( (1-freeze(:,:)) * zeri(:,:) ) |
|---|
| 537 | emps (:,:) = zemp(:,:) & |
|---|
| 538 | & + runoff(:,:) & |
|---|
| 539 | & + erp(:,:) & |
|---|
| 540 | & + zerps(:,:) |
|---|
| 541 | emp (:,:) = emps(:,:) |
|---|
| 542 | #endif |
|---|
| 543 | |
|---|
| 544 | ! Boundary condition on emp for free surface option |
|---|
| 545 | ! ------------------------------------------------- |
|---|
| 546 | CALL lbc_lnk( emp, 'T', 1. ) |
|---|
| 547 | |
|---|
| 548 | ENDIF |
|---|
| 549 | |
|---|
| 550 | END SUBROUTINE oce_sbc |
|---|
| 551 | |
|---|
| 552 | # else |
|---|
| 553 | !!---------------------------------------------------------------------- |
|---|
| 554 | !! Default option : Analytical forcing |
|---|
| 555 | !!---------------------------------------------------------------------- |
|---|
| 556 | |
|---|
| 557 | SUBROUTINE oce_sbc( kt ) |
|---|
| 558 | !!--------------------------------------------------------------------- |
|---|
| 559 | !! *** ROUTINE oce_sbc *** |
|---|
| 560 | !! |
|---|
| 561 | !! ** Purpose : provide the thermohaline fluxes (heat and freshwater) |
|---|
| 562 | !! to the ocean at each time step. |
|---|
| 563 | !! |
|---|
| 564 | !! ** Method : Constant surface fluxes (read in namelist (namflx)) |
|---|
| 565 | !! |
|---|
| 566 | !! ** Action : - qt, qsr, emp, emps, qrp, erp |
|---|
| 567 | !! |
|---|
| 568 | !! History : |
|---|
| 569 | !! ! 91-03 () Original code |
|---|
| 570 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
|---|
| 571 | !! 9.0 ! 04-05 (A. Koch-Larrouy) Add Gyre configuration |
|---|
| 572 | !!---------------------------------------------------------------------- |
|---|
| 573 | !! * Modules used |
|---|
| 574 | USE flxrnf ! ocean runoffs |
|---|
| 575 | USE daymod, ONLY : nyear ! calendar |
|---|
| 576 | USE dtasss ! sea surface salinity data |
|---|
| 577 | |
|---|
| 578 | !! * arguments |
|---|
| 579 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 580 | |
|---|
| 581 | !! * local declarations |
|---|
| 582 | REAL(wp) :: & !!! surface fluxes namelist (namflx) |
|---|
| 583 | q0 = 0.e0, & ! net heat flux |
|---|
| 584 | qsr0 = 0.e0, & ! solar heat flux |
|---|
| 585 | emp0 = 0.e0 ! net freshwater flux |
|---|
| 586 | REAL(wp) :: zsrp, & |
|---|
| 587 | zemp_S, zemp_N, zemp_sais, & |
|---|
| 588 | zTstar, zcos_sais1, zconv, & |
|---|
| 589 | zcos_sais2 |
|---|
| 590 | REAL(wp) :: & |
|---|
| 591 | zsumemp, & ! tampon used for the emp sum |
|---|
| 592 | zsurf, & ! tampon used for the domain sum |
|---|
| 593 | ztime, & ! time in hour |
|---|
| 594 | ztimemax1, ztimemin1, & ! 21th june, and 21th december if date0 = 1st january |
|---|
| 595 | ztimemax2, ztimemin2 ! 21th august, and 21th february if date0 = 1st january |
|---|
| 596 | REAL(wp), DIMENSION(jpi,jpj) :: t_star |
|---|
| 597 | INTEGER :: ji, jj ! dummy loop indices |
|---|
| 598 | |
|---|
| 599 | INTEGER :: & |
|---|
| 600 | zyear0, & ! initial year |
|---|
| 601 | zmonth0, & ! initial month |
|---|
| 602 | zday0, & ! initial day |
|---|
| 603 | zday_year0 ! initial day since january 1st |
|---|
| 604 | |
|---|
| 605 | NAMELIST/namflx/ q0, qsr0, emp0 |
|---|
| 606 | !!--------------------------------------------------------------------- |
|---|
| 607 | |
|---|
| 608 | !same temperature, E-P as in HAZELEGER 2000 |
|---|
| 609 | |
|---|
| 610 | IF( cp_cfg == 'gyre' ) THEN |
|---|
| 611 | |
|---|
| 612 | zyear0 = ndate0 / 10000 ! initial year |
|---|
| 613 | zmonth0 = ( ndate0 - zyear0 * 10000 ) / 100 ! initial month |
|---|
| 614 | zday0 = ndate0 - zyear0 * 10000 - zmonth0 * 100 ! initial day betwen 1 and 30 |
|---|
| 615 | zday_year0= (zmonth0-1)*30.+zday0 ! initial day betwen 1 and 360 |
|---|
| 616 | |
|---|
| 617 | ! current day (in hours) since january the 1st of the current year |
|---|
| 618 | ztime = FLOAT( kt ) * rdt / (rmmss * rhhmm) & ! total incrementation (in hours) |
|---|
| 619 | & - (nyear - 1) * rjjhh * raajj ! minus years since beginning of experiment (in hours) |
|---|
| 620 | |
|---|
| 621 | ! 21th june at 24h in hours |
|---|
| 622 | ztimemax1 = ((5.*30.)+21.)* 24. |
|---|
| 623 | ! 21th december in hours |
|---|
| 624 | ! rjjhh * raajj / 4 = 1 seasonal cycle in hours |
|---|
| 625 | ztimemin1 = ztimemax1 + rjjhh * raajj / 2 |
|---|
| 626 | ! 21th july at 24h in hours |
|---|
| 627 | ztimemax2 = ((6.*30.)+21.)* 24. |
|---|
| 628 | ! 21th january day in hours |
|---|
| 629 | ! rjjhh * raajj / 4 = 1 seasonal cycle in hours |
|---|
| 630 | ztimemin2 = ztimemax2 - rjjhh * raajj / 2 |
|---|
| 631 | |
|---|
| 632 | ! amplitudes |
|---|
| 633 | zemp_S = 0.7 ! intensity of COS in the South |
|---|
| 634 | zemp_N = 0.8 ! intensity of COS in the North |
|---|
| 635 | zemp_sais= 0.1 |
|---|
| 636 | zTstar = 28.3 ! intemsity from 28.3 a -5 deg |
|---|
| 637 | |
|---|
| 638 | ! 1/2 period between 21th June and 21th December |
|---|
| 639 | zcos_sais1 = COS( (ztime - ztimemax1) / (ztimemin1 - ztimemax1) * rpi ) |
|---|
| 640 | |
|---|
| 641 | ! 1/2 period between 21th July and 21th January |
|---|
| 642 | zcos_sais2 = COS( (ztime - ztimemax2) / (ztimemax2 - ztimemin2) * rpi ) |
|---|
| 643 | |
|---|
| 644 | zconv = 3.16e-5 ! convert 1m/yr->3.16e-5mm/s |
|---|
| 645 | DO jj = 1, jpj |
|---|
| 646 | DO ji = 1, jpi |
|---|
| 647 | ! domain from 15 deg to 50 deg between 27 and 28 degC at 15N, -3 |
|---|
| 648 | ! and 13 degC at 50N 53.5 + or - 11 = 1/4 period : |
|---|
| 649 | ! 64.5 in summer, 42.5 in winter |
|---|
| 650 | t_star (ji,jj) = zTstar * ( 1 + 1. / 50. * zcos_sais2 ) & |
|---|
| 651 | & * COS( rpi * (gphit(ji,jj) - 5.) & |
|---|
| 652 | & / (53.5 * ( 1 + 11 / 53.5 * zcos_sais2 ) * 2.) ) |
|---|
| 653 | qt (ji,jj) = dqdt0 * ( tb(ji,jj,1) - t_star(ji,jj) ) |
|---|
| 654 | IF( gphit(ji,jj) >= 14.845 .AND. 37.2 >= gphit(ji,jj)) THEN |
|---|
| 655 | ! zero at 37.8 deg, max at 24.6 deg |
|---|
| 656 | emp (ji,jj) = zemp_S * zconv & |
|---|
| 657 | & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (24.6 - 37.2) ) & |
|---|
| 658 | & * ( 1 - zemp_sais / zemp_S * zcos_sais1) |
|---|
| 659 | emps (ji,jj) = emp (ji,jj) |
|---|
| 660 | ELSE |
|---|
| 661 | ! zero at 37.8 deg, max at 46.8 deg |
|---|
| 662 | emp (ji,jj) = - zemp_N * zconv & |
|---|
| 663 | & * SIN( rpi / 2 * (gphit(ji,jj) - 37.2) / (46.8 - 37.2) ) & |
|---|
| 664 | & * ( 1 - zemp_sais / zemp_N * zcos_sais1 ) |
|---|
| 665 | emps (ji,jj) = emp (ji,jj) |
|---|
| 666 | ENDIF |
|---|
| 667 | ! 23.5 deg : tropics |
|---|
| 668 | qsr (ji,jj) = 230 * COS( 3.1415 * ( gphit(ji,jj) - 23.5 * zcos_sais1 ) / ( 0.9 * 180 ) ) |
|---|
| 669 | END DO |
|---|
| 670 | END DO |
|---|
| 671 | |
|---|
| 672 | ! compute the emp flux such as its integration on the whole domain and at each time be zero |
|---|
| 673 | zsumemp = 0.e0 |
|---|
| 674 | zsurf = 0.e0 |
|---|
| 675 | DO jj = 1, jpj |
|---|
| 676 | DO ji = 1, jpi |
|---|
| 677 | zsumemp = zsumemp + emp(ji,jj) * tmask(ji,jj,1) * tmask_i(ji,jj) |
|---|
| 678 | zsurf = zsurf + tmask(ji,jj,1) * tmask_i(ji,jj) |
|---|
| 679 | END DO |
|---|
| 680 | END DO |
|---|
| 681 | |
|---|
| 682 | IF( lk_mpp ) CALL mpp_sum( zsumemp ) ! sum over the global domain |
|---|
| 683 | IF( lk_mpp ) CALL mpp_sum( zsurf ) ! sum over the global domain |
|---|
| 684 | |
|---|
| 685 | IF( nbench /= 0 ) THEN |
|---|
| 686 | ! Benchmark GYRE configuration (to allow the bit to bit comparison between Mpp/Mono case) |
|---|
| 687 | zsumemp = 0.e0 |
|---|
| 688 | ELSE |
|---|
| 689 | ! Default GYRE configuration |
|---|
| 690 | zsumemp = zsumemp / zsurf |
|---|
| 691 | ENDIF |
|---|
| 692 | |
|---|
| 693 | IF( lk_dtasss ) THEN ! Sea surface salinity damping |
|---|
| 694 | ! deds0 from (mm/day) => (mm/s) |
|---|
| 695 | zsrp = deds0 / rday |
|---|
| 696 | erp(:,:) = zsrp * ( sss(:,:) - sb(:,:,1) ) / ( sn(:,:,1) + 1.e-20 ) |
|---|
| 697 | ELSE ! NO Sea surface salinity damping |
|---|
| 698 | zsrp = 0.e0 |
|---|
| 699 | erp(:,:) = 0.e0 |
|---|
| 700 | ENDIF |
|---|
| 701 | |
|---|
| 702 | ! freshwater fluxes terms |
|---|
| 703 | DO jj = 1, jpj |
|---|
| 704 | DO ji = 1, jpi |
|---|
| 705 | emp(ji, jj) = emp(ji,jj) - zsumemp * tmask(ji,jj,1) |
|---|
| 706 | emps(ji, jj)= emp(ji,jj) + erp(ji,jj) |
|---|
| 707 | END DO |
|---|
| 708 | END DO |
|---|
| 709 | |
|---|
| 710 | IF( kt == nit000 .AND. lwp ) THEN |
|---|
| 711 | WRITE(numout,*)' ocesbc : analytical formulation for gyre' |
|---|
| 712 | WRITE(numout,*)' ~~~~~~~ ' |
|---|
| 713 | WRITE(numout,*)' nyear = ', nyear |
|---|
| 714 | WRITE(numout,*)' ztime = ',ztime |
|---|
| 715 | WRITE(numout,*)' ztimemax1 = ',ztimemax1 |
|---|
| 716 | WRITE(numout,*)' ztimemin1 = ',ztimemin1 |
|---|
| 717 | WRITE(numout,*)' ztimemax2 = ',ztimemax2 |
|---|
| 718 | WRITE(numout,*)' ztimemin2 = ',ztimemin2 |
|---|
| 719 | WRITE(numout,*)' zyear0 = ', zyear0 |
|---|
| 720 | WRITE(numout,*)' zmonth0 = ', zmonth0 |
|---|
| 721 | WRITE(numout,*)' zday0 = ', zday0 |
|---|
| 722 | WRITE(numout,*)' zday_year0 = ',zday_year0 |
|---|
| 723 | WRITE(numout,*)' raajj = ', raajj |
|---|
| 724 | WRITE(numout,*)' zemp_S = ',zemp_S |
|---|
| 725 | WRITE(numout,*)' zemp_N = ',zemp_N |
|---|
| 726 | WRITE(numout,*)' zemp_sais = ',zemp_sais |
|---|
| 727 | WRITE(numout,*)' zTstar = ',zTstar |
|---|
| 728 | WRITE(numout,*)' zsumemp = ',zsumemp |
|---|
| 729 | WRITE(numout,*)' zsurf = ',zsurf |
|---|
| 730 | WRITE(numout,*)' dqdt0 = ',dqdt0 |
|---|
| 731 | WRITE(numout,*)' deds0 = ',deds0 |
|---|
| 732 | WRITE(numout,*)' zconv = ',zconv |
|---|
| 733 | ENDIF |
|---|
| 734 | |
|---|
| 735 | ELSE |
|---|
| 736 | |
|---|
| 737 | ! Constant surface fluxes |
|---|
| 738 | |
|---|
| 739 | IF( kt == nit000 ) THEN |
|---|
| 740 | IF(lwp) THEN |
|---|
| 741 | WRITE(numout,*)' ' |
|---|
| 742 | WRITE(numout,*)' ocesbc : Constant surface fluxes read in namelist' |
|---|
| 743 | WRITE(numout,*)' ~~~~~~~ ' |
|---|
| 744 | WRITE(numout,*)' Namelist namflx: set the constant flux values' |
|---|
| 745 | WRITE(numout,*)' net heat flux q0 = ', q0 , ' W/m2' |
|---|
| 746 | WRITE(numout,*)' solar heat flux qsr0 = ', qsr0, ' W/m2' |
|---|
| 747 | WRITE(numout,*)' net heat flux emp0 = ', emp0, ' W/m2' |
|---|
| 748 | ENDIF |
|---|
| 749 | |
|---|
| 750 | qt (:,:) = q0 |
|---|
| 751 | qsr (:,:) = qsr0 |
|---|
| 752 | emp (:,:) = emp0 |
|---|
| 753 | emps (:,:) = emp0 |
|---|
| 754 | qrp (:,:) = 0.e0 |
|---|
| 755 | erp (:,:) = 0.e0 |
|---|
| 756 | |
|---|
| 757 | runoff(:,:) = 0.e0 |
|---|
| 758 | ENDIF |
|---|
| 759 | |
|---|
| 760 | ENDIF |
|---|
| 761 | |
|---|
| 762 | END SUBROUTINE oce_sbc |
|---|
| 763 | |
|---|
| 764 | # endif |
|---|
| 765 | #endif |
|---|
| 766 | |
|---|
| 767 | #if defined key_dtasal |
|---|
| 768 | !!---------------------------------------------------------------------- |
|---|
| 769 | !! 'key_dtasal' salinity data |
|---|
| 770 | !!---------------------------------------------------------------------- |
|---|
| 771 | SUBROUTINE oce_sbc_dmp |
|---|
| 772 | !!--------------------------------------------------------------------- |
|---|
| 773 | !! *** ROUTINE oce_sbc_dmp *** |
|---|
| 774 | !! |
|---|
| 775 | !! ** Purpose : Computation of internal and evaporation damping terms |
|---|
| 776 | !! for ocean surface boundary conditions |
|---|
| 777 | !! |
|---|
| 778 | !! History : |
|---|
| 779 | !! 9.0 ! 04-01 (G. Madec, C. Ethe) Original code |
|---|
| 780 | !! 9.0 ! 05-11 (V. Garnier) Surface pressure gradient organization |
|---|
| 781 | !!---------------------------------------------------------------------- |
|---|
| 782 | !! * Local declarations |
|---|
| 783 | INTEGER :: ji, jj ! dummy loop indices |
|---|
| 784 | REAL(wp), DIMENSION(jpi,jpj) :: zsss, zfreeze |
|---|
| 785 | REAL(wp) :: zerp, zsrp |
|---|
| 786 | CHARACTER (len=71) :: charout |
|---|
| 787 | #if ! defined key_dynspg_rl |
|---|
| 788 | REAL(wp) :: zwei |
|---|
| 789 | REAL(wp) :: zerpplus(jpi,jpj), zerpminus(jpi,jpj) |
|---|
| 790 | REAL(wp) :: zplus, zminus, zadefi |
|---|
| 791 | # if defined key_tradmp |
|---|
| 792 | INTEGER jk |
|---|
| 793 | REAL(wp), DIMENSION(jpi,jpj) :: zstrdmp |
|---|
| 794 | # endif |
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| 795 | #endif |
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| 796 | !!---------------------------------------------------------------------- |
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| 797 | |
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| 798 | #if defined key_ice_lim |
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| 799 | ! sea ice indicator (1 or 0) |
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| 800 | DO jj = 1, jpj |
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| 801 | DO ji = 1, jpi |
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| 802 | freezn(ji,jj) = MAX(0., SIGN(1., freeze(ji,jj)-rsmall) ) |
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| 803 | END DO |
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| 804 | END DO |
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| 805 | zsss (:,:) = sss_io(:,:) |
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| 806 | zfreeze(:,:) = freezn(:,:) |
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| 807 | #else |
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| 808 | zsss (:,:) = sb (:,:,1) |
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| 809 | zfreeze(:,:) = freeze(:,:) |
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| 810 | #endif |
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| 811 | |
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| 812 | ! Initialisation |
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| 813 | ! -------------- |
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| 814 | ! Restoring coefficients on SST and SSS |
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| 815 | zsrp = dqdt0 * ro0cpr * rauw ! (Kg/m2/s) |
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| 816 | |
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| 817 | #if ! defined key_dynspg_rl |
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| 818 | ! Free-surface |
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| 819 | |
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| 820 | ! Internal damping |
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| 821 | # if defined key_tradmp |
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| 822 | ! Vertical mean of dampind trend (computed in tradmp module) |
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| 823 | zstrdmp(:,:) = 0.e0 |
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| 824 | DO jk = 1, jpk |
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| 825 | zstrdmp(:,:) = zstrdmp(:,:) + strdmp(:,:,jk) * fse3t(:,:,jk) |
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| 826 | END DO |
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| 827 | ! volume flux associated to internal damping to climatology |
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| 828 | dmp(:,:) = zstrdmp(:,:) * rauw / ( zsss(:,:) + 1.e-20 ) |
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| 829 | # else |
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| 830 | dmp(:,:) = 0.e0 ! No internal damping |
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| 831 | # endif |
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| 832 | |
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| 833 | ! evaporation damping term ( Surface restoring ) |
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| 834 | zerpplus (:,:) = 0.e0 |
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| 835 | zerpminus(:,:) = 0.e0 |
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| 836 | zplus = 15. / rday |
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| 837 | zminus = -15. / rday |
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| 838 | |
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| 839 | DO jj = 1, jpj |
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| 840 | DO ji = 1, jpi |
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| 841 | zerp = ( 1. - 2.*upsrnfh(ji,jj) ) * zsrp & |
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| 842 | & * ( zsss(ji,jj) - s_dta(ji,jj,1) ) & |
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| 843 | & / ( zsss(ji,jj) + 1.e-20 ) |
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| 844 | |
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| 845 | zerp = MIN( zerp, zplus ) |
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| 846 | zerp = MAX( zerp, zminus ) |
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| 847 | erp(ji,jj) = zerp |
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| 848 | zerpplus (ji,jj) = MAX( erp(ji,jj), 0.e0 ) |
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| 849 | zerpminus(ji,jj) = MIN( erp(ji,jj), 0.e0 ) |
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| 850 | END DO |
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| 851 | END DO |
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| 852 | |
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| 853 | aplus = 0.e0 |
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| 854 | aminus = 0.e0 |
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| 855 | DO jj = 1, jpj |
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| 856 | DO ji = 1, jpi |
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| 857 | zwei = e1t(ji,jj) * e2t(ji,jj) * tmask_i(ji,jj) |
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| 858 | aplus = aplus + zerpplus (ji,jj) * zwei |
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| 859 | aminus = aminus - zerpminus(ji,jj) * zwei |
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| 860 | END DO |
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| 861 | END DO |
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| 862 | IF( lk_mpp ) CALL mpp_sum( aplus ) ! sums over the global domain |
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| 863 | IF( lk_mpp ) CALL mpp_sum( aminus ) |
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| 864 | |
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| 865 | IF(ln_ctl) THEN |
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| 866 | WRITE(charout,FMT="('oce_sbc_dmp : a+ = ',D23.16, ' a- = ',D23.16)") aplus, aminus |
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| 867 | CALL prt_ctl_info(charout) |
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| 868 | ENDIF |
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| 869 | |
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| 870 | zadefi = MIN( aplus, aminus ) |
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| 871 | IF( zadefi == 0.e0 ) THEN |
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| 872 | erp(:,:) = 0.e0 |
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| 873 | ELSE |
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| 874 | erp(:,:) = zadefi * ( zerpplus(:,:) / aplus + zerpminus(:,:) / aminus ) |
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| 875 | ENDIF |
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| 876 | #else |
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| 877 | ! Rigid-lid (emp=emps=E-P-R+Erp) |
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| 878 | |
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| 879 | erp(:,:) = ( 1. - zfreeze(:,:) ) * zsrp & ! surface restoring term |
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| 880 | & * ( zsss(:,:) - s_dta(:,:,1) ) & |
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| 881 | & / ( zsss(:,:) + 1.e-20 ) |
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| 882 | #endif |
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| 883 | |
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| 884 | END SUBROUTINE oce_sbc_dmp |
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| 885 | |
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| 886 | #else |
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| 887 | !!---------------------------------------------------------------------- |
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| 888 | !! Dummy routine NO salinity data |
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| 889 | !!---------------------------------------------------------------------- |
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| 890 | SUBROUTINE oce_sbc_dmp ! Dummy routine |
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| 891 | WRITE(*,*) 'oce_sbc_dmp: you should not have seen that print! error?' |
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| 892 | END SUBROUTINE oce_sbc_dmp |
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| 893 | #endif |
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| 894 | |
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| 895 | !!====================================================================== |
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| 896 | END MODULE ocesbc |
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