[2148] | 1 | MODULE diahsb |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE diahsb *** |
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[2334] | 4 | !! Ocean diagnostics: Heat, salt and volume budgets |
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[2148] | 5 | !!====================================================================== |
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[2334] | 6 | !! History : 3.3 ! 2010-09 (M. Leclair) Original code |
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[2148] | 7 | !!---------------------------------------------------------------------- |
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[2334] | 8 | |
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| 9 | !!---------------------------------------------------------------------- |
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[2148] | 10 | USE oce ! ocean dynamics and tracers |
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| 11 | USE dom_oce ! ocean space and time domain |
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| 12 | USE phycst ! physical constants |
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| 13 | USE sbc_oce ! surface thermohaline fluxes |
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| 14 | USE in_out_manager ! I/O manager |
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| 15 | USE domvvl ! vertical scale factors |
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| 16 | USE traqsr ! penetrative solar radiation |
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[2337] | 17 | USE trabbc ! bottom boundary condition |
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[2148] | 18 | USE lib_mpp ! distributed memory computing library |
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| 19 | USE trabbc ! bottom boundary condition |
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[3294] | 20 | USE obc_par ! (for lk_obc) |
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[2148] | 21 | USE bdy_par ! (for lk_bdy) |
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[3294] | 22 | USE timing ! preformance summary |
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[2148] | 23 | |
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| 24 | IMPLICIT NONE |
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| 25 | PRIVATE |
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| 26 | |
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[2334] | 27 | PUBLIC dia_hsb ! routine called by step.F90 |
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| 28 | PUBLIC dia_hsb_init ! routine called by opa.F90 |
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[2148] | 29 | |
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[2334] | 30 | LOGICAL, PUBLIC :: ln_diahsb = .FALSE. !: check the heat and salt budgets |
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[2148] | 31 | |
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| 32 | INTEGER :: numhsb ! |
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| 33 | REAL(dp) :: surf_tot , vol_tot ! |
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| 34 | REAL(dp) :: frc_t , frc_s , frc_v ! global forcing trends |
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| 35 | REAL(dp) :: fact1 ! conversion factors |
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| 36 | REAL(dp) :: fact21 , fact22 ! - - |
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| 37 | REAL(dp) :: fact31 , fact32 ! - - |
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| 38 | REAL(dp), DIMENSION(:,:) , ALLOCATABLE :: surf , ssh_ini ! |
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| 39 | REAL(dp), DIMENSION(:,:,:), ALLOCATABLE :: hc_loc_ini, sc_loc_ini, e3t_ini ! |
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| 40 | |
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| 41 | !! * Substitutions |
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| 42 | # include "domzgr_substitute.h90" |
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| 43 | # include "vectopt_loop_substitute.h90" |
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| 44 | |
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| 45 | !!---------------------------------------------------------------------- |
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[2287] | 46 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[2281] | 47 | !! $Id$ |
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[2334] | 48 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[2148] | 49 | !!---------------------------------------------------------------------- |
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| 50 | |
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| 51 | CONTAINS |
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| 52 | |
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| 53 | SUBROUTINE dia_hsb( kt ) |
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| 54 | !!--------------------------------------------------------------------------- |
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| 55 | !! *** ROUTINE dia_hsb *** |
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| 56 | !! |
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[2334] | 57 | !! ** Purpose: Compute the ocean global heat content, salt content and volume conservation |
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[2148] | 58 | !! |
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| 59 | !! ** Method : - Compute the deviation of heat content, salt content and volume |
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[2334] | 60 | !! at the current time step from their values at nit000 |
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| 61 | !! - Compute the contribution of forcing and remove it from these deviations |
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| 62 | !! |
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[2148] | 63 | !! ** Action : Write the results in the 'heat_salt_volume_budgets.txt' ASCII file |
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| 64 | !!--------------------------------------------------------------------------- |
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| 65 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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| 66 | !! |
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| 67 | INTEGER :: jk ! dummy loop indice |
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| 68 | REAL(dp) :: zdiff_hc , zdiff_sc ! heat and salt content variations |
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| 69 | REAL(dp) :: zdiff_v1 , zdiff_v2 ! volume variation |
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| 70 | REAL(dp) :: z1_rau0 ! local scalars |
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| 71 | REAL(dp) :: zdeltat ! - - |
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| 72 | REAL(dp) :: z_frc_trd_t , z_frc_trd_s ! - - |
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| 73 | REAL(dp) :: z_frc_trd_v ! - - |
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| 74 | !!--------------------------------------------------------------------------- |
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[3294] | 75 | IF( nn_timing == 1 ) CALL timing_start('dia_hsb') |
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[2148] | 76 | |
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| 77 | ! ------------------------- ! |
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| 78 | ! 1 - Trends due to forcing ! |
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| 79 | ! ------------------------- ! |
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| 80 | z1_rau0 = 1.e0 / rau0 |
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| 81 | z_frc_trd_v = z1_rau0 * SUM( - ( emp(:,:) - rnf(:,:) ) * surf(:,:) ) ! volume fluxes |
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[2259] | 82 | z_frc_trd_t = SUM( sbc_tsc(:,:,jp_tem) * surf(:,:) ) ! heat fluxes |
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| 83 | z_frc_trd_s = SUM( sbc_tsc(:,:,jp_sal) * surf(:,:) ) ! salt fluxes |
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[2148] | 84 | ! Add penetrative solar radiation |
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[3396] | 85 | IF( ln_traqsr ) z_frc_trd_t = z_frc_trd_t + r1_rau0_rcp * SUM( qsr (:,:) * surf(:,:) ) |
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[2148] | 86 | ! Add geothermal heat flux |
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[3396] | 87 | IF( ln_trabbc ) z_frc_trd_t = z_frc_trd_t + r1_rau0_rcp * SUM( qgh_trd0(:,:) * surf(:,:) ) |
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[2148] | 88 | IF( lk_mpp ) THEN |
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| 89 | CALL mpp_sum( z_frc_trd_v ) |
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| 90 | CALL mpp_sum( z_frc_trd_t ) |
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| 91 | ENDIF |
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| 92 | frc_v = frc_v + z_frc_trd_v * rdt |
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| 93 | frc_t = frc_t + z_frc_trd_t * rdt |
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| 94 | frc_s = frc_s + z_frc_trd_s * rdt |
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| 95 | |
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| 96 | ! ----------------------- ! |
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| 97 | ! 2 - Content variations ! |
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| 98 | ! ----------------------- ! |
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| 99 | zdiff_v2 = 0.d0 |
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| 100 | zdiff_hc = 0.d0 |
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| 101 | zdiff_sc = 0.d0 |
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| 102 | ! volume variation (calculated with ssh) |
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| 103 | zdiff_v1 = SUM( surf(:,:) * tmask(:,:,1) * ( sshn(:,:) - ssh_ini(:,:) ) ) |
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| 104 | DO jk = 1, jpkm1 |
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| 105 | ! volume variation (calculated with scale factors) |
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| 106 | zdiff_v2 = zdiff_v2 + SUM( surf(:,:) * tmask(:,:,jk) & |
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| 107 | & * ( fse3t_n(:,:,jk) & |
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| 108 | & - e3t_ini(:,:,jk) ) ) |
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| 109 | ! heat content variation |
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| 110 | zdiff_hc = zdiff_hc + SUM( surf(:,:) * tmask(:,:,jk) & |
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[3294] | 111 | & * ( fse3t_n(:,:,jk) * tsn(:,:,jk,jp_tem) & |
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[2148] | 112 | & - hc_loc_ini(:,:,jk) ) ) |
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| 113 | ! salt content variation |
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| 114 | zdiff_sc = zdiff_sc + SUM( surf(:,:) * tmask(:,:,jk) & |
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[3294] | 115 | & * ( fse3t_n(:,:,jk) * tsn(:,:,jk,jp_sal) & |
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[2148] | 116 | & - sc_loc_ini(:,:,jk) ) ) |
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| 117 | ENDDO |
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| 118 | |
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| 119 | IF( lk_mpp ) THEN |
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| 120 | CALL mpp_sum( zdiff_hc ) |
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| 121 | CALL mpp_sum( zdiff_sc ) |
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| 122 | CALL mpp_sum( zdiff_v1 ) |
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| 123 | CALL mpp_sum( zdiff_v2 ) |
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| 124 | ENDIF |
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| 125 | |
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| 126 | ! Substract forcing from heat content, salt content and volume variations |
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| 127 | zdiff_v1 = zdiff_v1 - frc_v |
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| 128 | zdiff_v2 = zdiff_v2 - frc_v |
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| 129 | zdiff_hc = zdiff_hc - frc_t |
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| 130 | zdiff_sc = zdiff_sc - frc_s |
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| 131 | |
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| 132 | ! ----------------------- ! |
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| 133 | ! 3 - Diagnostics writing ! |
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| 134 | ! ----------------------- ! |
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| 135 | zdeltat = 1.e0 / ( ( kt - nit000 + 1 ) * rdt ) |
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| 136 | WRITE(numhsb , 9020) kt , zdiff_hc / vol_tot , zdiff_hc * fact1 * zdeltat, & |
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| 137 | & zdiff_sc / vol_tot , zdiff_sc * fact21 * zdeltat, zdiff_sc * fact22 * zdeltat, & |
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| 138 | & zdiff_v1 , zdiff_v1 * fact31 * zdeltat, zdiff_v1 * fact32 * zdeltat, & |
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| 139 | & zdiff_v2 , zdiff_v2 * fact31 * zdeltat, zdiff_v2 * fact32 * zdeltat |
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| 140 | |
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| 141 | IF ( kt == nitend ) CLOSE( numhsb ) |
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| 142 | |
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[3294] | 143 | IF( nn_timing == 1 ) CALL timing_stop('dia_hsb') |
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| 144 | |
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[2148] | 145 | 9020 FORMAT(I5,11D15.7) |
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[2334] | 146 | ! |
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[2148] | 147 | END SUBROUTINE dia_hsb |
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| 148 | |
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[2334] | 149 | |
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[2148] | 150 | SUBROUTINE dia_hsb_init |
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| 151 | !!--------------------------------------------------------------------------- |
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| 152 | !! *** ROUTINE dia_hsb *** |
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| 153 | !! |
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| 154 | !! ** Purpose: Initialization for the heat salt volume budgets |
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| 155 | !! |
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| 156 | !! ** Method : Compute initial heat content, salt content and volume |
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| 157 | !! |
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| 158 | !! ** Action : - Compute initial heat content, salt content and volume |
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| 159 | !! - Initialize forcing trends |
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| 160 | !! - Compute coefficients for conversion |
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| 161 | !!--------------------------------------------------------------------------- |
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| 162 | CHARACTER (len=32) :: cl_name ! output file name |
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| 163 | INTEGER :: jk ! dummy loop indice |
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| 164 | INTEGER :: ierror ! local integer |
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[2334] | 165 | !! |
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[2148] | 166 | NAMELIST/namhsb/ ln_diahsb |
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| 167 | !!---------------------------------------------------------------------- |
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[2334] | 168 | ! |
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[2148] | 169 | REWIND ( numnam ) ! Read Namelist namhsb |
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| 170 | READ ( numnam, namhsb ) |
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[2334] | 171 | ! |
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[2148] | 172 | IF(lwp) THEN ! Control print |
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| 173 | WRITE(numout,*) |
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| 174 | WRITE(numout,*) 'dia_hsb_init : check the heat and salt budgets' |
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| 175 | WRITE(numout,*) '~~~~~~~~~~~~' |
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| 176 | WRITE(numout,*) ' Namelist namhsb : set hsb parameters' |
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| 177 | WRITE(numout,*) ' Switch for hsb diagnostic (T) or not (F) ln_diahsb = ', ln_diahsb |
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| 178 | ENDIF |
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| 179 | |
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| 180 | IF( .NOT. ln_diahsb ) RETURN |
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| 181 | |
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| 182 | ! ------------------- ! |
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| 183 | ! 1 - Allocate memory ! |
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| 184 | ! ------------------- ! |
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| 185 | ALLOCATE( hc_loc_ini(jpi,jpj,jpk), STAT=ierror ) |
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| 186 | IF( ierror > 0 ) THEN |
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| 187 | CALL ctl_stop( 'dia_hsb: unable to allocate hc_loc_ini' ) ; RETURN |
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| 188 | ENDIF |
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| 189 | ALLOCATE( sc_loc_ini(jpi,jpj,jpk), STAT=ierror ) |
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| 190 | IF( ierror > 0 ) THEN |
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| 191 | CALL ctl_stop( 'dia_hsb: unable to allocate sc_loc_ini' ) ; RETURN |
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| 192 | ENDIF |
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| 193 | ALLOCATE( e3t_ini(jpi,jpj,jpk) , STAT=ierror ) |
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| 194 | IF( ierror > 0 ) THEN |
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| 195 | CALL ctl_stop( 'dia_hsb: unable to allocate e3t_ini' ) ; RETURN |
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| 196 | ENDIF |
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| 197 | ALLOCATE( surf(jpi,jpj) , STAT=ierror ) |
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| 198 | IF( ierror > 0 ) THEN |
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| 199 | CALL ctl_stop( 'dia_hsb: unable to allocate surf' ) ; RETURN |
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| 200 | ENDIF |
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| 201 | ALLOCATE( ssh_ini(jpi,jpj) , STAT=ierror ) |
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| 202 | IF( ierror > 0 ) THEN |
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| 203 | CALL ctl_stop( 'dia_hsb: unable to allocate ssh_ini' ) ; RETURN |
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| 204 | ENDIF |
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| 205 | |
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| 206 | ! ----------------------------------------------- ! |
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| 207 | ! 2 - Time independant variables and file opening ! |
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| 208 | ! ----------------------------------------------- ! |
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| 209 | WRITE(numout,*) "dia_hsb: heat salt volume budgets activated" |
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| 210 | WRITE(numout,*) "~~~~~~~ output written in the 'heat_salt_volume_budgets.txt' ASCII file" |
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[3294] | 211 | IF( lk_obc .or. lk_bdy ) THEN |
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[2148] | 212 | CALL ctl_warn( 'dia_hsb does not take open boundary fluxes into account' ) |
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| 213 | ENDIF |
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| 214 | cl_name = 'heat_salt_volume_budgets.txt' ! name of output file |
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| 215 | surf(:,:) = e1t(:,:) * e2t(:,:) * tmask(:,:,1) * tmask_i(:,:) ! masked surface grid cell area |
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| 216 | surf_tot = SUM( surf(:,:) ) ! total ocean surface area |
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| 217 | vol_tot = 0.d0 ! total ocean volume |
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| 218 | DO jk = 1, jpkm1 |
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| 219 | vol_tot = vol_tot + SUM( surf(:,:) * tmask(:,:,jk) & |
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| 220 | & * fse3t_n(:,:,jk) ) |
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[2334] | 221 | END DO |
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[2148] | 222 | IF( lk_mpp ) THEN |
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| 223 | CALL mpp_sum( vol_tot ) |
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| 224 | CALL mpp_sum( surf_tot ) |
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| 225 | ENDIF |
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| 226 | |
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| 227 | CALL ctl_opn( numhsb , cl_name , 'UNKNOWN' , 'FORMATTED' , 'SEQUENTIAL' , 1 , numout , lwp , 1 ) |
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| 228 | ! 12345678901234567890123456789012345678901234567890123456789012345678901234567890 -> 80 |
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| 229 | WRITE( numhsb, 9010 ) "kt | heat content budget | salt content budget ", & |
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| 230 | ! 123456789012345678901234567890123456789012345 -> 45 |
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| 231 | & "| volume budget (ssh) ", & |
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| 232 | ! 678901234567890123456789012345678901234567890 -> 45 |
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| 233 | & "| volume budget (e3t) " |
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| 234 | WRITE( numhsb, 9010 ) " | [C] [W/m2] | [psu] [mmm/s] [SV] ", & |
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| 235 | & "| [m3] [mmm/s] [SV] ", & |
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| 236 | & "| [m3] [mmm/s] [SV] " |
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| 237 | |
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| 238 | ! --------------- ! |
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| 239 | ! 3 - Conversions ! (factors will be multiplied by duration afterwards) |
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| 240 | ! --------------- ! |
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| 241 | |
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| 242 | ! heat content variation => equivalent heat flux: |
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| 243 | fact1 = rau0 * rcp / surf_tot ! [C*m3] -> [W/m2] |
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| 244 | ! salt content variation => equivalent EMP and equivalent "flow": |
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| 245 | fact21 = 1.e3 / ( soce * surf_tot ) ! [psu*m3] -> [mm/s] |
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| 246 | fact22 = 1.e-6 / soce ! [psu*m3] -> [Sv] |
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| 247 | ! volume variation => equivalent EMP and equivalent "flow": |
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| 248 | fact31 = 1.e3 / surf_tot ! [m3] -> [mm/s] |
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| 249 | fact32 = 1.e-6 ! [m3] -> [SV] |
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| 250 | |
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| 251 | ! ---------------------------------- ! |
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| 252 | ! 4 - initial conservation variables ! |
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| 253 | ! ---------------------------------- ! |
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[3294] | 254 | ssh_ini(:,:) = sshn(:,:) ! initial ssh |
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[2148] | 255 | DO jk = 1, jpk |
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[3294] | 256 | e3t_ini (:,:,jk) = fse3t_n(:,:,jk) ! initial vertical scale factors |
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| 257 | hc_loc_ini(:,:,jk) = tsn(:,:,jk,jp_tem) * fse3t_n(:,:,jk) ! initial heat content |
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| 258 | sc_loc_ini(:,:,jk) = tsn(:,:,jk,jp_sal) * fse3t_n(:,:,jk) ! initial salt content |
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[2148] | 259 | END DO |
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| 260 | frc_v = 0.d0 ! volume trend due to forcing |
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| 261 | frc_t = 0.d0 ! heat content - - - - |
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| 262 | frc_s = 0.d0 ! salt content - - - - |
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| 263 | ! |
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| 264 | 9010 FORMAT(A80,A45,A45) |
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| 265 | ! |
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| 266 | END SUBROUTINE dia_hsb_init |
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| 267 | |
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| 268 | !!====================================================================== |
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| 269 | END MODULE diahsb |
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