[3] | 1 | MODULE trabbc |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE trabbc *** |
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| 4 | !! Ocean active tracers: bottom boundary condition |
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| 5 | !!============================================================================== |
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[32] | 6 | #if defined key_trabbc || defined key_esopa |
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[3] | 7 | !!---------------------------------------------------------------------- |
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| 8 | !! 'key_trabbc' geothermal heat flux |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! tra_bbc : update the tracer trend at ocean bottom |
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| 11 | !! tra_bbc_init : initialization of geothermal heat flux trend |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! * Modules used |
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| 14 | USE oce ! ocean dynamics and active tracers |
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| 15 | USE dom_oce ! ocean space and time domain |
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| 16 | USE phycst ! physical constants |
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| 17 | USE in_out_manager ! I/O manager |
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[258] | 18 | USE prtctl ! Print control |
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[3] | 19 | |
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| 20 | IMPLICIT NONE |
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| 21 | PRIVATE |
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| 22 | |
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| 23 | !! * Accessibility |
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| 24 | PUBLIC tra_bbc ! routine called by step.F90 |
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| 25 | |
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| 26 | !! to be transfert in the namelist ???! |
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[32] | 27 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbc = .TRUE. !: bbc flag |
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[3] | 28 | |
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| 29 | !! * Module variables |
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| 30 | INTEGER :: & !!! ** bbc namelist (nambbc) ** |
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| 31 | ngeo_flux = 1 ! Geothermal flux (0:no flux, 1:constant flux, |
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| 32 | ! ! 2:read in file ) |
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| 33 | REAL(wp) :: & !!! ** bbc namlist ** |
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| 34 | ngeo_flux_const = 86.4e-3 ! Constant value of geothermal heat flux |
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| 35 | |
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| 36 | INTEGER, DIMENSION(jpi,jpj) :: & |
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| 37 | nbotlevt ! ocean bottom level index at T-pt |
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| 38 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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| 39 | qgh_trd ! geothermal heating trend |
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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 | !!---------------------------------------------------------------------- |
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[247] | 44 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 45 | !! $Header$ |
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| 46 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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[3] | 47 | !!---------------------------------------------------------------------- |
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| 48 | |
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| 49 | CONTAINS |
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| 50 | |
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| 51 | SUBROUTINE tra_bbc( kt ) |
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| 52 | !!---------------------------------------------------------------------- |
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| 53 | !! *** ROUTINE tra_bbc *** |
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| 54 | !! |
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| 55 | !! ** Purpose : Compute the bottom boundary contition on temperature |
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| 56 | !! associated with geothermal heating and add it to the general |
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| 57 | !! trend of temperature equations. |
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| 58 | !! |
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| 59 | !! ** Method : The geothermal heat flux set to its constant value of |
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| 60 | !! 86.4 mW/m2 (Stein and Stein 1992, Huang 1999). |
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| 61 | !! The temperature trend associated to this heat flux through the |
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| 62 | !! ocean bottom can be computed once and is added to the temperature |
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| 63 | !! trend juste above the bottom at each time step: |
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| 64 | !! ta = ta + Qsf / (rau0 rcp e3T) for k= mbathy -1 |
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| 65 | !! Where Qsf is the geothermal heat flux. |
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| 66 | !! |
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| 67 | !! ** Action : - update the temperature trends (ta) with the trend of |
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| 68 | !! the ocean bottom boundary condition |
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| 69 | !! |
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| 70 | !! References : |
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| 71 | !! Stein, C. A., and S. Stein, 1992, Nature, 359, 123-129. |
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| 72 | !! |
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| 73 | !! History : |
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| 74 | !! 8.1 ! 99-10 (G. Madec) original code |
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| 75 | !! 8.5 ! 02-08 (G. Madec) free form + modules |
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| 76 | !!---------------------------------------------------------------------- |
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| 77 | !! * Arguments |
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| 78 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 79 | |
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| 80 | !! * Local declarations |
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| 81 | #if defined key_vectopt_loop && ! defined key_autotasking |
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| 82 | INTEGER :: ji ! dummy loop indices |
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| 83 | #else |
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| 84 | INTEGER :: ji, jj ! dummy loop indices |
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| 85 | #endif |
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| 86 | !!---------------------------------------------------------------------- |
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| 87 | |
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| 88 | ! 0. Initialization |
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| 89 | IF( kt == nit000 ) CALL tra_bbc_init |
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| 90 | |
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| 91 | ! 1. Add the geothermal heat flux trend on temperature |
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| 92 | |
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| 93 | SELECT CASE ( ngeo_flux ) |
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| 94 | |
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| 95 | CASE ( 1:2 ) ! geothermal heat flux |
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| 96 | |
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| 97 | #if defined key_vectopt_loop && ! defined key_autotasking |
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| 98 | DO ji = jpi+2, jpij-jpi-1 ! vector opt. (forced unrolling) |
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| 99 | ta(ji,1,nbotlevt(ji,1)) = ta(ji,1,nbotlevt(ji,1)) + qgh_trd(ji,1) |
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| 100 | END DO |
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| 101 | #else |
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| 102 | DO jj = 2, jpjm1 |
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| 103 | DO ji = 2, jpim1 |
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| 104 | ta(ji,jj,nbotlevt(ji,jj)) = ta(ji,jj,nbotlevt(ji,jj)) + qgh_trd(ji,jj) |
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| 105 | END DO |
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| 106 | END DO |
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| 107 | #endif |
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[106] | 108 | |
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[258] | 109 | IF(ln_ctl) THEN |
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| 110 | CALL prt_ctl(tab3d_1=ta, clinfo1=' bbc - Ta: ', mask1=tmask, clinfo3='tra-ta') |
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[3] | 111 | ENDIF |
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| 112 | |
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| 113 | END SELECT |
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| 114 | |
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| 115 | END SUBROUTINE tra_bbc |
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| 116 | |
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| 117 | |
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| 118 | SUBROUTINE tra_bbc_init |
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| 119 | !!---------------------------------------------------------------------- |
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| 120 | !! *** ROUTINE tra_bbc_init *** |
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| 121 | !! |
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| 122 | !! ** Purpose : Compute once for all the trend associated with geo- |
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| 123 | !! thermal heating that will be applied at each time step at the |
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| 124 | !! bottom ocean level |
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| 125 | !! |
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| 126 | !! ** Method : Read the nambbc namelist and check the parameters. |
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| 127 | !! called at the first time step (nit000) |
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| 128 | !! |
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| 129 | !! ** Input : - Namlist nambbc |
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| 130 | !! - NetCDF file : geothermal_heating.nc ( if necessary ) |
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| 131 | !! |
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| 132 | !! ** Action : - compute the heat geothermal trend qgh_trd |
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| 133 | !! - compute the bottom ocean level nbotlevt |
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| 134 | !! |
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| 135 | !! history : |
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| 136 | !! 8.5 ! 02-11 (A. Bozec) original code |
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| 137 | !!---------------------------------------------------------------------- |
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| 138 | !! * Modules used |
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| 139 | USE ioipsl |
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| 140 | |
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| 141 | !! * local declarations |
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| 142 | CHARACTER (len=32) :: clname |
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| 143 | INTEGER :: ji, jj ! dummy loop indices |
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| 144 | INTEGER :: inum = 11 ! temporary logical unit |
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| 145 | INTEGER :: itime ! temporary integers |
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| 146 | REAL(wp) :: zdate0, zdt ! temporary scalars |
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| 147 | REAL(wp), DIMENSION(1) :: zdept ! temporary workspace |
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| 148 | REAL(wp), DIMENSION(jpidta,jpjdta) :: & |
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| 149 | zlamt, zphit, zdta ! temporary workspace |
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| 150 | |
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| 151 | NAMELIST/nambbc/ngeo_flux, ngeo_flux_const |
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| 152 | !!---------------------------------------------------------------------- |
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| 153 | |
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| 154 | ! Read Namelist nambbc : bottom momentum boundary condition |
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| 155 | REWIND ( numnam ) |
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| 156 | READ ( numnam, nambbc ) |
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| 157 | |
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| 158 | ! Control print |
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| 159 | IF(lwp) WRITE(numout,*) |
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| 160 | IF(lwp) WRITE(numout,*) 'tra_bbc : tempearture Bottom Boundary Condition (bbc)' |
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| 161 | IF(lwp) WRITE(numout,*) '~~~~~~~ Geothermal heatflux' |
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| 162 | IF(lwp) WRITE(numout,*) ' Namelist nambbc : set bbc parameters' |
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| 163 | IF(lwp) WRITE(numout,*) |
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| 164 | IF(lwp) WRITE(numout,*) ' Geothermal flux ngeo_flux = ', ngeo_flux |
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| 165 | IF(lwp) WRITE(numout,*) ' Constant geothermal flux ngeo_flux_const = ', ngeo_flux_const |
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| 166 | IF(lwp) WRITE(numout,*) |
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| 167 | |
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| 168 | ! level of the ocean bottom at T-point |
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| 169 | |
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| 170 | DO jj = 1, jpj |
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| 171 | DO ji = 1, jpi |
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| 172 | nbotlevt(ji,jj) = MAX( mbathy(ji,jj)-1, 1 ) |
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| 173 | END DO |
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| 174 | END DO |
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| 175 | |
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| 176 | ! initialization of geothermal heat flux |
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| 177 | |
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| 178 | SELECT CASE ( ngeo_flux ) |
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| 179 | |
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| 180 | CASE ( 0 ) ! no geothermal heat flux |
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| 181 | IF(lwp) WRITE(numout,*) |
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| 182 | IF(lwp) WRITE(numout,*) ' *** no geothermal heat flux' |
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| 183 | |
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| 184 | CASE ( 1 ) ! constant flux |
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| 185 | IF(lwp) WRITE(numout,*) ' *** constant heat flux = ', ngeo_flux_const |
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| 186 | qgh_trd(:,:) = ngeo_flux_const |
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| 187 | |
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| 188 | CASE ( 2 ) ! variable geothermal heat flux |
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| 189 | ! read the geothermal fluxes in mW/m2 |
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| 190 | clname = 'geothermal_heating' |
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[392] | 191 | #if defined key_agrif |
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[389] | 192 | if ( .NOT. Agrif_Root() ) then |
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| 193 | clname = TRIM(Agrif_CFixed())//'_'//TRIM(clname) |
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| 194 | endif |
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| 195 | #endif |
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[3] | 196 | itime = 1 |
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| 197 | zlamt(:,:) = 0. |
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| 198 | zphit(:,:) = 0. |
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| 199 | IF(lwp) WRITE(numout,*) ' *** variable geothermal heat flux read in ', clname, ' file' |
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[352] | 200 | CALL restini( clname, jpidta, jpjdta, zlamt, zphit, 1, zdept , 'NONE', & |
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| 201 | & itime, zdate0, zdt, inum, domain_id=nidom ) |
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[389] | 202 | CALL restget( inum, 'heatflow', jpidta, jpjdta, 1, itime, .FALSE., zdta ) |
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[3] | 203 | DO jj = 1, nlcj |
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| 204 | DO ji = 1, nlci |
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| 205 | qgh_trd(ji,jj) = zdta(mig(ji),mjg(jj)) |
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| 206 | END DO |
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| 207 | END DO |
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| 208 | |
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| 209 | CALL restclo( inum ) |
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| 210 | qgh_trd(:,:) = qgh_trd(:,:) * 1.e-3 ! conversion in W/m2 |
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| 211 | |
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| 212 | CASE DEFAULT |
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| 213 | IF(lwp) WRITE(numout,cform_err) |
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| 214 | IF(lwp) WRITE(numout,*) ' bad flag value for ngeo_flux = ', ngeo_flux |
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| 215 | nstop = nstop + 1 |
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| 216 | |
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| 217 | END SELECT |
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| 218 | |
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| 219 | ! geothermal heat flux trend |
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| 220 | |
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| 221 | SELECT CASE ( ngeo_flux ) |
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| 222 | |
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| 223 | CASE ( 1:2 ) ! geothermal heat flux |
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| 224 | |
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| 225 | #if defined key_vectopt_loop && ! defined key_autotasking |
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| 226 | DO ji = 1, jpij ! vector opt. (forced unrolling) |
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| 227 | qgh_trd(ji,1) = ro0cpr * qgh_trd(ji,1) / fse3t(ji,1,nbotlevt(ji,1) ) |
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| 228 | END DO |
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| 229 | #else |
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| 230 | DO jj = 1, jpj |
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| 231 | DO ji = 1, jpi |
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| 232 | qgh_trd(ji,jj) = ro0cpr * qgh_trd(ji,jj) / fse3t(ji,jj,nbotlevt(ji,jj)) |
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| 233 | END DO |
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| 234 | END DO |
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| 235 | #endif |
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| 236 | |
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| 237 | END SELECT |
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| 238 | |
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| 239 | END SUBROUTINE tra_bbc_init |
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| 240 | |
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| 241 | #else |
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| 242 | !!---------------------------------------------------------------------- |
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| 243 | !! Default option Empty module |
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| 244 | !!---------------------------------------------------------------------- |
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[32] | 245 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbc = .FALSE. !: bbc flag |
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[3] | 246 | CONTAINS |
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| 247 | SUBROUTINE tra_bbc( kt ) ! Empty routine |
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[32] | 248 | WRITE(*,*) 'tra_bbc: You should not have seen this print! error?', kt |
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[3] | 249 | END SUBROUTINE tra_bbc |
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| 250 | #endif |
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| 251 | |
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| 252 | !!====================================================================== |
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| 253 | END MODULE trabbc |
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