| 1 | MODULE sbcfwb_tam |
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| 2 | #if defined key_tam |
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| 3 | !!====================================================================== |
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| 4 | !! *** MODULE sbcfwb *** |
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| 5 | !! Ocean fluxes : domain averaged freshwater budget |
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| 6 | !!====================================================================== |
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| 7 | !! History of the direct module: |
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| 8 | !! 8.2 ! 01-02 (E. Durand) Original code |
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| 9 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
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| 10 | !! 9.0 ! 06-08 (G. Madec) Surface module |
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| 11 | !! 9.2 ! 09-07 (C. Talandier) emp mean s spread over erp area |
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| 12 | !! History of the T&A module: |
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| 13 | !! 9.0 ! 06-08 (A. Vidard) Surface module |
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| 14 | !! 9.2 ! 09-07 (A. Vidard) NEMO3.2 update |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | !! sbc_fwb : freshwater budget for global ocean configurations |
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| 19 | !! in free surface and forced mode |
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| 20 | !!---------------------------------------------------------------------- |
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| 21 | USE par_kind |
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| 22 | USE par_oce |
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| 23 | USE oce_tam |
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| 24 | USE sbc_oce_tam |
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| 25 | USE dom_oce |
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| 26 | USE tstool_tam |
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| 27 | USE in_out_manager |
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| 28 | USE lib_mpp ! distribued memory computing library |
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| 29 | USE gridrandom |
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| 30 | USE dotprodfld |
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| 31 | USE wrk_nemo |
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| 32 | USE lib_fortran |
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| 33 | USE timing |
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| 34 | |
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| 35 | IMPLICIT NONE |
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| 36 | PRIVATE |
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| 37 | |
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| 38 | PUBLIC sbc_fwb_adj ! routine called by sbcmod_tam |
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| 39 | PUBLIC sbc_fwb_tan ! routine called by sbcmod_tam |
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| 40 | PUBLIC sbc_fwb_adj_tst ! routine called by tst |
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| 41 | |
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| 42 | REAL(wp), PUBLIC :: a_fwb_tl ! for before year. |
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| 43 | REAL(wp), PUBLIC :: a_fwb_ad ! for before year. |
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| 44 | REAL(wp) :: area ! global mean ocean surface (interior domain) |
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| 45 | |
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| 46 | !! * Substitutions |
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| 47 | # include "domzgr_substitute.h90" |
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| 48 | # include "vectopt_loop_substitute.h90" |
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| 49 | !!---------------------------------------------------------------------- |
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| 50 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
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| 51 | !! $Id: sbcfwb.F90 1168 2008-08-11 10:21:06Z rblod $ |
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| 52 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 53 | !!---------------------------------------------------------------------- |
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| 54 | CONTAINS |
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| 55 | |
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| 56 | SUBROUTINE sbc_fwb_tan( kt, kn_fwb, kn_fsbc ) |
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| 57 | !!--------------------------------------------------------------------- |
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| 58 | !! *** ROUTINE sbc_fwb_tan *** |
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| 59 | !! |
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| 60 | !! ** Purpose : Control the mean sea surface drift |
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| 61 | !! |
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| 62 | !! ** Method : several ways depending on kn_fwb |
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| 63 | !! =0 no control |
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| 64 | !! =1 global mean of emp set to zero at each nn_fsbc time step |
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| 65 | !! =2 annual global mean corrected from previous year |
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| 66 | !! =3 variable relaxation time to zero or to a time varying field |
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| 67 | !!---------------------------------------------------------------------- |
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| 68 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 69 | INTEGER, INTENT( in ) :: kn_fsbc ! |
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| 70 | INTEGER, INTENT( in ) :: kn_fwb ! ocean time-step index |
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| 71 | !! |
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| 72 | INTEGER :: inum ! temporary logical unit |
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| 73 | INTEGER :: ikty, iyear ! |
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| 74 | CHARACTER (len=32) :: clname |
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| 75 | REAL(wp) :: z_emptl ! temporary scalars |
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| 76 | !!---------------------------------------------------------------------- |
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| 77 | ! |
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| 78 | ! |
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| 79 | IF( nn_timing == 1 ) CALL timing_start('sbc_fwb_tan') |
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| 80 | ! |
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| 81 | IF( kt == nit000 ) THEN |
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| 82 | ! |
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| 83 | IF(lwp) THEN |
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| 84 | WRITE(numout,*) |
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| 85 | WRITE(numout,*) 'sbc_fwb_tan : FreshWater Budget correction.' |
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| 86 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 87 | ENDIF |
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| 88 | ! |
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| 89 | area = glob_sum( e1e2t(:,:) ) ! interior global domain surface |
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| 90 | ! |
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| 91 | ENDIF |
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| 92 | |
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| 93 | SELECT CASE ( kn_fwb ) |
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| 94 | ! |
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| 95 | CASE ( 1 ) ! global mean emp set to zero |
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| 96 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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| 97 | z_emptl = glob_sum( e1e2t(:,:) * emp_tl(:,:) ) / area |
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| 98 | emp_tl (:,:) = emp_tl (:,:) - z_emptl |
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| 99 | emps_tl(:,:) = emps_tl(:,:) - z_emptl |
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| 100 | ENDIF |
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| 101 | ! |
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| 102 | CASE ( 2 ) ! emp budget adjusted from the previous year |
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| 103 | ! initialisation |
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| 104 | IF( kt == nit000 ) THEN |
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| 105 | a_fwb_tl = 0.0_wp |
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| 106 | ENDIF |
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| 107 | ! |
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| 108 | ikty = 365 * 86400 / rdttra(1) !!bug use of 365 days leap year or 360d year !!!!!!! |
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| 109 | IF( MOD( kt, ikty ) == 0 ) THEN |
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| 110 | a_fwb_tl = glob_sum( e1e2t(:,:) * sshn_tl(:,:) ) |
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| 111 | a_fwb_tl = a_fwb_tl * 1.e+3 / ( area * 86400. * 365. ) ! convert in Kg/m3/s = mm/s |
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| 112 | !!gm ! !!bug 365d year |
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| 113 | ENDIF |
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| 114 | ! |
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| 115 | ! correct the freshwater fluxes |
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| 116 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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| 117 | emp_tl (:,:) = emp_tl (:,:) + a_fwb_tl |
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| 118 | emps_tl(:,:) = emps_tl(:,:) + a_fwb_tl |
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| 119 | ENDIF |
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| 120 | ! |
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| 121 | CASE ( 3 ) |
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| 122 | ! |
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| 123 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not available for TAM yet , choose either 0/1/2' |
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| 124 | CALL ctl_stop( ctmp1 ) |
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| 125 | |
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| 126 | ! |
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| 127 | CASE DEFAULT ! you should never be there |
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| 128 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not permitted for the FreshWater Budget correction, choose either 0/1/2' |
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| 129 | CALL ctl_stop( ctmp1 ) |
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| 130 | ! |
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| 131 | END SELECT |
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| 132 | ! |
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| 133 | IF( nn_timing == 1 ) CALL timing_stop('sbc_fwb_tan') |
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| 134 | ! |
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| 135 | END SUBROUTINE sbc_fwb_tan |
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| 136 | |
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| 137 | |
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| 138 | SUBROUTINE sbc_fwb_adj( kt, kn_fwb, kn_fsbc ) |
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| 139 | !!--------------------------------------------------------------------- |
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| 140 | !! *** ROUTINE sbc_fwb_adj *** |
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| 141 | !! |
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| 142 | !! ** Purpose : Control the mean sea surface drift |
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| 143 | !! |
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| 144 | !! ** Method : several ways depending on kn_fwb |
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| 145 | !! =0 no control |
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| 146 | !! =1 global mean of emp set to zero at each nn_fsbc time step |
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| 147 | !! =2 annual global mean corrected from previous year |
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| 148 | !! =3 variable relaxation time to zero or to a time varying field |
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| 149 | !!---------------------------------------------------------------------- |
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| 150 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 151 | INTEGER, INTENT( in ) :: kn_fsbc ! |
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| 152 | INTEGER, INTENT( in ) :: kn_fwb ! ocean time-step index |
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| 153 | !! |
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| 154 | INTEGER :: inum ! temporary logical unit |
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| 155 | INTEGER :: ikty, iyear ! |
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| 156 | INTEGER :: ji, jj ! |
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| 157 | CHARACTER (len=32) :: clname |
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| 158 | REAL(wp) :: z_empad ! temporary scalars |
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| 159 | !!---------------------------------------------------------------------- |
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| 160 | ! |
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| 161 | ! |
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| 162 | IF( nn_timing == 1 ) CALL timing_start('sbc_fwb_adj') |
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| 163 | ! |
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| 164 | IF( kt == nitend ) THEN |
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| 165 | ! |
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| 166 | IF(lwp) THEN |
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| 167 | WRITE(numout,*) |
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| 168 | WRITE(numout,*) 'sbc_fwb_adj : FreshWater Budget correction.' |
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| 169 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 170 | ENDIF |
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| 171 | ! |
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| 172 | area = glob_sum( e1e2t(:,:) ) |
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| 173 | ! |
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| 174 | ! initialisation |
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| 175 | a_fwb_ad = 0.0_wp |
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| 176 | ENDIF |
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| 177 | z_empad = 0.0_wp |
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| 178 | |
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| 179 | SELECT CASE ( kn_fwb ) |
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| 180 | ! |
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| 181 | CASE ( 1 ) ! global mean emp set to zero |
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| 182 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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| 183 | DO jj = 1, jpj |
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| 184 | DO ji = 1, jpi |
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| 185 | z_empad = z_empad - emps_ad(ji,jj) - emp_ad(ji,jj) |
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| 186 | END DO |
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| 187 | END DO |
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| 188 | IF( lk_mpp ) CALL mpp_sum( z_empad ) ! sum over the global domain |
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| 189 | z_empad = z_empad / area |
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| 190 | emp_ad(:,:) = emp_ad(:,:) + e1e2t(:,:) * z_empad*tmask_i(:,:) |
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| 191 | z_empad = 0._wp |
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| 192 | ENDIF |
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| 193 | ! |
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| 194 | CASE ( 2 ) ! emp budget adjusted from the previous year |
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| 195 | ! |
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| 196 | ! initialisation |
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| 197 | ikty = 365 * 86400 / rdttra(1) !!bug use of 365 days leap year or 360d year !!!!!!! |
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| 198 | ! correct the freshwater fluxes |
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| 199 | IF( MOD( kt-1, kn_fsbc ) == 0 ) THEN |
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| 200 | DO jj = nldj, nlej |
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| 201 | DO ji = nldi, nlei |
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| 202 | a_fwb_ad = a_fwb_ad + emps_ad(ji,jj) + emp_ad (ji,jj) |
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| 203 | END DO |
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| 204 | END DO |
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| 205 | ENDIF |
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| 206 | ! |
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| 207 | IF( MOD( kt, ikty ) == 0 ) THEN |
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| 208 | a_fwb_ad = a_fwb_ad * 1.e+3 / ( area * 86400. * 365. ) ! convert in Kg/m3/s = mm/s |
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| 209 | IF( lk_mpp ) CALL mpp_sum( a_fwb_ad ) ! sum over the global domain |
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| 210 | DO jj = 1, jpj |
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| 211 | DO ji = 1, jpi |
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| 212 | sshn_ad(ji,jj) = sshn_ad(ji,jj) + e1e2t(ji,jj) * a_fwb_ad |
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| 213 | END DO |
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| 214 | END DO |
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| 215 | a_fwb_ad = 0.0_wp |
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| 216 | ENDIF |
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| 217 | ! |
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| 218 | CASE ( 3 ) |
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| 219 | ! |
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| 220 | WRITE(ctmp1,*)'sbc_fwb_tan: nn_fwb=', kn_fwb, ' is not available for TAM yet , choose either 0/1/2' |
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| 221 | CALL ctl_stop( ctmp1 ) |
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| 222 | ! |
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| 223 | CASE DEFAULT ! you should never be there |
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| 224 | WRITE(ctmp1,*)'sbc_fwb_adj: nn_fwb=', kn_fwb, ' is not permitted for the FreshWater Budget correction, choose either 0/1/2' |
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| 225 | CALL ctl_stop( ctmp1 ) |
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| 226 | ! |
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| 227 | END SELECT |
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| 228 | ! |
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| 229 | ! |
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| 230 | IF( nn_timing == 1 ) CALL timing_stop('sbc_fwb_adj') |
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| 231 | ! |
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| 232 | END SUBROUTINE sbc_fwb_adj |
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| 233 | |
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| 234 | SUBROUTINE sbc_fwb_adj_tst ( kumadt ) |
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| 235 | !!----------------------------------------------------------------------- |
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| 236 | !! |
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| 237 | !! *** ROUTINE example_adj_tst *** |
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| 238 | !! |
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| 239 | !! ** Purpose : Test the adjoint routine. |
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| 240 | !! |
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| 241 | !! ** Method : Verify the scalar product |
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| 242 | !! |
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| 243 | !! ( L dx )^T W dy = dx^T L^T W dy |
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| 244 | !! |
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| 245 | !! where L = tangent routine |
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| 246 | !! L^T = adjoint routine |
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| 247 | !! W = diagonal matrix of scale factors |
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| 248 | !! dx = input perturbation (random field) |
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| 249 | !! dy = L dx |
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| 250 | !! |
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| 251 | !! History : |
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| 252 | !! ! 08-08 (A. Vidard) |
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| 253 | !!----------------------------------------------------------------------- |
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| 254 | !! * Modules used |
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| 255 | |
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| 256 | !! * Arguments |
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| 257 | INTEGER, INTENT(IN) :: & |
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| 258 | & kumadt ! Output unit |
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| 259 | |
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| 260 | !! * Local declarations |
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| 261 | INTEGER :: & |
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| 262 | & istp, & |
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| 263 | & jstp, & |
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| 264 | & ji, & ! dummy loop indices |
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| 265 | & jj, & |
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| 266 | & jk, & |
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| 267 | & jn_fwb |
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| 268 | REAL(KIND=wp) :: & |
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| 269 | & zsp1, & ! scalar product involving the tangent routine |
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| 270 | & zsp2 ! scalar product involving the adjoint routine |
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| 271 | REAL(KIND=wp), DIMENSION(:,:), ALLOCATABLE :: & |
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| 272 | & zemp_tlin , & ! Tangent input |
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| 273 | & zemps_tlin , & ! Tangent input |
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| 274 | & zssh_tlin , & ! Tangent input |
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| 275 | & zssh_tlout, zssh_adin, & |
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| 276 | & zemp_tlout, & ! Tangent output |
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| 277 | & zemps_tlout, & ! Tangent output |
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| 278 | & zemp_adin , & ! Adjoint input |
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| 279 | & zemps_adin , & ! Adjoint input |
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| 280 | & zemp_adout, & ! Adjoint output |
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| 281 | & zemps_adout, & ! Adjoint output |
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| 282 | & zssh_adout, & ! Adjoint output |
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| 283 | & zr ! 3D random field |
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| 284 | CHARACTER(LEN=14) :: cl_name |
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| 285 | ! Allocate memory |
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| 286 | |
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| 287 | ALLOCATE( & |
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| 288 | & zssh_tlout( jpi,jpj), zssh_adin ( jpi,jpj), & |
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| 289 | & zemp_tlin( jpi,jpj), & |
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| 290 | & zemps_tlin( jpi,jpj), & |
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| 291 | & zssh_tlin( jpi,jpj), & |
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| 292 | & zemp_tlout( jpi,jpj), & |
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| 293 | & zemps_tlout(jpi,jpj), & |
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| 294 | & zemp_adin( jpi,jpj), & |
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| 295 | & zemps_adin( jpi,jpj), & |
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| 296 | & zemp_adout( jpi,jpj), & |
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| 297 | & zemps_adout(jpi,jpj), & |
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| 298 | & zssh_adout( jpi,jpj), & |
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| 299 | & zr( jpi,jpj) & |
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| 300 | & ) |
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| 301 | !================================================================== |
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| 302 | ! 1) dx = ( emp_tl, emps_tl, ssh_tl ) and |
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| 303 | ! dy = ( emp_tl, emps_tl ) |
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| 304 | !================================================================== |
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| 305 | ! Test for time steps nit000 and nit000 + 1 (the matrix changes) |
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| 306 | |
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| 307 | DO jstp = nit000, nit000 + 3 |
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| 308 | istp = jstp |
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| 309 | IF ( jstp == nit000 + 3 ) istp = nitend |
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| 310 | |
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| 311 | !-------------------------------------------------------------------- |
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| 312 | ! Reset the tangent and adjoint variables |
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| 313 | !-------------------------------------------------------------------- |
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| 314 | zemp_tlin (:,:) = 0.0_wp |
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| 315 | zemps_tlin (:,:) = 0.0_wp |
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| 316 | zssh_tlin (:,:) = 0.0_wp |
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| 317 | zemp_tlout (:,:) = 0.0_wp |
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| 318 | zemps_tlout(:,:) = 0.0_wp |
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| 319 | zemp_adin (:,:) = 0.0_wp |
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| 320 | zemps_adin (:,:) = 0.0_wp |
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| 321 | zemp_adout (:,:) = 0.0_wp |
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| 322 | zemps_adout(:,:) = 0.0_wp |
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| 323 | zssh_adout (:,:) = 0.0_wp |
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| 324 | zr(:,:) = 0.0_wp |
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| 325 | |
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| 326 | !-------------------------------------------------------------------- |
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| 327 | ! Initialize the tangent input with random noise: dx |
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| 328 | !-------------------------------------------------------------------- |
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| 329 | |
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| 330 | CALL grid_random( zr, 'T', 0.0_wp, stdemp ) |
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| 331 | DO jj = nldj, nlej |
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| 332 | DO ji = nldi, nlei |
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| 333 | zemp_tlin(ji,jj) = zr(ji,jj) |
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| 334 | END DO |
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| 335 | END DO |
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| 336 | CALL grid_random( zr, 'T', 0.0_wp, stdemp ) |
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| 337 | DO jj = nldj, nlej |
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| 338 | DO ji = nldi, nlei |
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| 339 | zemps_tlin(ji,jj) = zr(ji,jj) |
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| 340 | END DO |
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| 341 | END DO |
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| 342 | CALL grid_random( zr, 'T', 0.0_wp, stdssh ) |
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| 343 | DO jj = nldj, nlej |
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| 344 | DO ji = nldi, nlei |
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| 345 | zssh_tlin(ji,jj) = zr(ji,jj) |
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| 346 | END DO |
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| 347 | END DO |
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| 348 | |
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| 349 | DO jn_fwb = 1, 2 |
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| 350 | |
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| 351 | a_fwb_tl = 0.0_wp |
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| 352 | a_fwb_ad = 0.0_wp |
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| 353 | sshn_ad (:,:) = 0.0_wp |
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| 354 | |
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| 355 | sshn_tl(:,:) = zssh_tlin (:,:) |
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| 356 | emps_tl(:,:) = zemps_tlin(:,:) |
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| 357 | emp_tl (:,:) = zemp_tlin (:,:) |
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| 358 | |
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| 359 | CALL sbc_fwb_tan( istp, jn_fwb, 1 ) |
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| 360 | |
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| 361 | zemps_tlout(:,:) = emps_tl(:,:) |
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| 362 | zemp_tlout (:,:) = emp_tl (:,:) |
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| 363 | zssh_tlout (:,:) = sshn_tl (:,:) |
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| 364 | !----------------------------------------------------------------- |
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| 365 | ! Initialize the adjoint variables: dy^* = W dy |
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| 366 | !----------------------------------------------------------------- |
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| 367 | |
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| 368 | DO jj = nldj, nlej |
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| 369 | DO ji = nldi, nlei |
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| 370 | zemp_adin( ji,jj) = zemp_tlout( ji,jj) & |
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| 371 | & * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) & |
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| 372 | & * tmask(ji,jj,1) |
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| 373 | zemps_adin(ji,jj) = zemps_tlout(ji,jj) & |
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| 374 | & * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) & |
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| 375 | & * tmask(ji,jj,1) |
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| 376 | zssh_adin( ji,jj) = zssh_tlout( ji,jj) * e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,1) * tmask(ji,jj,1) |
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| 377 | END DO |
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| 378 | END DO |
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| 379 | |
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| 380 | !----------------------------------------------------------------- |
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| 381 | ! Compute the scalar product: ( L dx )^T W dy |
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| 382 | !----------------------------------------------------------------- |
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| 383 | |
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| 384 | zsp1 = DOT_PRODUCT( zemp_tlout, zemp_adin ) & |
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| 385 | & + DOT_PRODUCT( zemps_tlout, zemps_adin ) |
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| 386 | |
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| 387 | zsp1 = zsp1 + DOT_PRODUCT( zssh_tlout, zssh_adin ) |
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| 388 | !----------------------------------------------------------------- |
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| 389 | ! Call the adjoint routine: dx^* = L^T dy^* |
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| 390 | !----------------------------------------------------------------- |
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| 391 | |
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| 392 | emp_ad (:,:) = zemp_adin (:,:) |
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| 393 | emps_ad(:,:) = zemps_adin(:,:) |
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| 394 | sshn_ad(:,:) = zssh_adin(:,:) |
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| 395 | CALL sbc_fwb_adj ( istp, jn_fwb, 1 ) |
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| 396 | |
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| 397 | zemps_adout(:,:) = emps_ad(:,:) |
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| 398 | zemp_adout (:,:) = emp_ad (:,:) |
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| 399 | zssh_adout (:,:) = sshn_ad(:,:) |
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| 400 | |
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| 401 | zsp2 = DOT_PRODUCT( zemp_tlin, zemp_adout ) & |
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| 402 | & + DOT_PRODUCT( zssh_tlin, zssh_adout ) & |
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| 403 | & + DOT_PRODUCT( zemps_tlin, zemps_adout ) |
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| 404 | |
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| 405 | ! 14 char:'12345678901234' |
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| 406 | IF ( istp == nit000 ) THEN |
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| 407 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'1' |
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| 408 | ELSEIF ( istp == nit000 + 1 ) THEN |
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| 409 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'2' |
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| 410 | ELSEIF ( istp == nit000 + 2 ) THEN |
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| 411 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'3' |
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| 412 | ELSEIF ( istp == nitend ) THEN |
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| 413 | WRITE (cl_name,"(A10,1x,i1,1x,A1)") 'sbcfwb_adj',jn_fwb,'4' |
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| 414 | END IF |
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| 415 | ! WRITE (cl_name,"(A11,2x,i1)") 'sbc_fwb_adj',jn_fwb |
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| 416 | CALL prntst_adj( cl_name, kumadt, zsp1, zsp2 ) |
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| 417 | |
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| 418 | END DO |
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| 419 | |
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| 420 | END DO |
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| 421 | |
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| 422 | DEALLOCATE( & |
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| 423 | & zemp_tlin, & |
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| 424 | & zemps_tlin, & |
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| 425 | & zssh_tlin, & |
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| 426 | & zemp_tlout, & |
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| 427 | & zemps_tlout, & |
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| 428 | & zemp_adin, & |
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| 429 | & zemps_adin, & |
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| 430 | & zemp_adout, & |
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| 431 | & zemps_adout, & |
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| 432 | & zssh_adout, & |
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| 433 | & zr & |
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| 434 | & ) |
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| 435 | |
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| 436 | END SUBROUTINE sbc_fwb_adj_tst |
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| 437 | #endif |
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| 438 | !!====================================================================== |
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| 439 | END MODULE sbcfwb_tam |
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