| 1 | MODULE p4zflx |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE p4zflx *** |
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| 4 | !! TOP : PISCES CALCULATES GAS EXCHANGE AND CHEMISTRY AT SEA SURFACE |
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| 5 | !!====================================================================== |
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| 6 | !! History : - ! 1988-07 (E. MAIER-REIMER) Original code |
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| 7 | !! - ! 1998 (O. Aumont) additions |
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| 8 | !! - ! 1999 (C. Le Quere) modifications |
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| 9 | !! 1.0 ! 2004 (O. Aumont) modifications |
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| 10 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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| 11 | !! ! 2011-02 (J. Simeon, J. Orr) Include total atm P correction |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | #if defined key_pisces |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | !! 'key_pisces' PISCES bio-model |
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| 16 | !!---------------------------------------------------------------------- |
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| 17 | !! p4z_flx : CALCULATES GAS EXCHANGE AND CHEMISTRY AT SEA SURFACE |
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| 18 | !! p4z_flx_init : Read the namelist |
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| 19 | !! p4z_patm : Read sfc atm pressure [atm] for each grid cell |
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| 20 | !!---------------------------------------------------------------------- |
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| 21 | USE oce_trc ! shared variables between ocean and passive tracers |
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| 22 | USE trc ! passive tracers common variables |
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| 23 | USE sms_pisces ! PISCES Source Minus Sink variables |
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| 24 | USE p4zche ! Chemical model |
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| 25 | USE prtctl_trc ! print control for debugging |
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| 26 | USE iom ! I/O manager |
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| 27 | USE fldread ! read input fields |
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| 28 | #if defined key_cpl_carbon_cycle |
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| 29 | USE sbc_oce, ONLY : atm_co2 ! atmospheric pCO2 |
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| 30 | #endif |
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| 31 | |
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| 32 | IMPLICIT NONE |
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| 33 | PRIVATE |
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| 34 | |
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| 35 | PUBLIC p4z_flx |
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| 36 | PUBLIC p4z_flx_init |
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| 37 | PUBLIC p4z_flx_alloc |
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| 38 | |
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| 39 | ! !!** Namelist nampisext ** |
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| 40 | REAL(wp) :: atcco2 !: pre-industrial atmospheric [co2] (ppm) |
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| 41 | LOGICAL :: ln_co2int !: flag to read in a file and interpolate atmospheric pco2 or not |
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| 42 | CHARACTER(len=34) :: clname !: filename of pco2 values |
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| 43 | INTEGER :: nn_offset !: Offset model-data start year (default = 0) |
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| 44 | |
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| 45 | !! Variables related to reading atmospheric CO2 time history |
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| 46 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:) :: atcco2h, years |
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| 47 | INTEGER :: nmaxrec, numco2 |
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| 48 | |
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| 49 | ! !!* nampisatm namelist (Atmospheric PRessure) * |
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| 50 | LOGICAL, PUBLIC :: ln_presatm !: ref. pressure: global mean Patm (F) or a constant (F) |
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| 51 | |
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| 52 | REAL(wp) , ALLOCATABLE, SAVE, DIMENSION(:,:) :: patm ! atmospheric pressure at kt [N/m2] |
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| 53 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_patm ! structure of input fields (file informations, fields read) |
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| 54 | |
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| 55 | |
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| 56 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: oce_co2 !: ocean carbon flux |
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| 57 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: satmco2 !: atmospheric pco2 |
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| 58 | |
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| 59 | REAL(wp) :: xconv = 0.01_wp / 3600._wp !: coefficients for conversion |
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| 60 | |
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| 61 | !!* Substitution |
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| 62 | # include "top_substitute.h90" |
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| 63 | !!---------------------------------------------------------------------- |
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| 64 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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| 65 | !! $Id$ |
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| 66 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 67 | !!---------------------------------------------------------------------- |
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| 68 | CONTAINS |
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| 69 | |
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| 70 | SUBROUTINE p4z_flx ( kt, knt ) |
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| 71 | !!--------------------------------------------------------------------- |
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| 72 | !! *** ROUTINE p4z_flx *** |
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| 73 | !! |
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| 74 | !! ** Purpose : CALCULATES GAS EXCHANGE AND CHEMISTRY AT SEA SURFACE |
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| 75 | !! |
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| 76 | !! ** Method : |
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| 77 | !! - Include total atm P correction via Esbensen & Kushnir (1981) |
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| 78 | !! - Pressure correction NOT done for key_cpl_carbon_cycle |
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| 79 | !! - Remove Wanninkhof chemical enhancement; |
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| 80 | !! - Add option for time-interpolation of atcco2.txt |
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| 81 | !!--------------------------------------------------------------------- |
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| 82 | ! |
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| 83 | INTEGER, INTENT(in) :: kt, knt ! |
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| 84 | ! |
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| 85 | INTEGER :: ji, jj, jm, iind, iindm1 |
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| 86 | REAL(wp) :: ztc, ztc2, ztc3, ztc4, zws, zkgwan |
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| 87 | REAL(wp) :: zfld, zflu, zfld16, zflu16, zfact |
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| 88 | REAL(wp) :: zph, zah2, zbot, zdic, zalk, zsch_o2, zalka, zsch_co2 |
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| 89 | REAL(wp) :: zyr_dec, zdco2dt |
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| 90 | CHARACTER (len=25) :: charout |
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| 91 | REAL(wp), POINTER, DIMENSION(:,:) :: zkgco2, zkgo2, zh2co3, zoflx, zw2d |
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| 92 | REAL(wp) :: zsch_dms, zfludms,zflddms |
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| 93 | REAL(wp) :: zfldco, zfluco, zsch_co, zkin_vis, zD |
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| 94 | REAL(wp) :: zfldcos, zflucos |
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| 95 | REAL(wp) :: zfldisp, zfluisp, zsch_isp, zsch_cos |
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| 96 | REAL(wp) :: zsch_n2o, zfldn2o, zflun2o |
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| 97 | REAL(wp), POINTER, DIMENSION(:,:) :: zkgdms, zdmsflx |
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| 98 | REAL(wp), POINTER, DIMENSION(:,:) :: zkgco, zcoflx, zkgisp, zispflx |
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| 99 | REAL(wp), POINTER, DIMENSION(:,:) :: zH_cos, zkgcos, zcosflx |
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| 100 | REAL(wp), POINTER, DIMENSION(:,:) :: zkgn2o, znflx |
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| 101 | |
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| 102 | !!--------------------------------------------------------------------- |
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| 103 | ! |
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| 104 | IF( nn_timing == 1 ) CALL timing_start('p4z_flx') |
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| 105 | ! |
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| 106 | CALL wrk_alloc( jpi, jpj, zkgco2, zkgo2, zh2co3, zoflx ) |
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| 107 | IF( lk_gas ) THEN |
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| 108 | CALL wrk_alloc( jpi, jpj, zkgco, zcoflx, zkgisp, zispflx ) |
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| 109 | CALL wrk_alloc( jpi, jpj, zcosflx, zkgcos, zH_cos ) |
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| 110 | CALL wrk_alloc( jpi, jpj, zkgdms, zdmsflx ) |
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| 111 | CALL wrk_alloc( jpi, jpj, zkgn2o, znflx ) |
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| 112 | ENDIF |
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| 113 | ! |
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| 114 | |
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| 115 | ! SURFACE CHEMISTRY (PCO2 AND [H+] IN |
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| 116 | ! SURFACE LAYER); THE RESULT OF THIS CALCULATION |
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| 117 | ! IS USED TO COMPUTE AIR-SEA FLUX OF CO2 |
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| 118 | |
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| 119 | IF( kt /= nit000 .AND. knt == 1 ) CALL p4z_patm( kt ) ! Get sea-level pressure (E&K [1981] climatology) for use in flux calcs |
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| 120 | |
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| 121 | IF( ln_co2int ) THEN |
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| 122 | ! Linear temporal interpolation of atmospheric pco2. atcco2.txt has annual values. |
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| 123 | ! Caveats: First column of .txt must be in years, decimal years preferably. |
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| 124 | ! For nn_offset, if your model year is iyy, nn_offset=(years(1)-iyy) |
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| 125 | ! then the first atmospheric CO2 record read is at years(1) |
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| 126 | zyr_dec = REAL( nyear + nn_offset, wp ) + REAL( nday_year, wp ) / REAL( nyear_len(1), wp ) |
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| 127 | jm = 1 |
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| 128 | DO WHILE( jm <= nmaxrec .AND. years(jm) < zyr_dec ) ; jm = jm + 1 ; END DO |
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| 129 | iind = jm ; iindm1 = jm - 1 |
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| 130 | zdco2dt = ( atcco2h(iind) - atcco2h(iindm1) ) / ( years(iind) - years(iindm1) + rtrn ) |
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| 131 | atcco2 = zdco2dt * ( zyr_dec - years(iindm1) ) + atcco2h(iindm1) |
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| 132 | satmco2(:,:) = atcco2 |
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| 133 | ENDIF |
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| 134 | |
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| 135 | #if defined key_cpl_carbon_cycle |
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| 136 | satmco2(:,:) = atm_co2(:,:) |
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| 137 | #endif |
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| 138 | |
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| 139 | DO jm = 1, 10 |
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| 140 | !CDIR NOVERRCHK |
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| 141 | DO jj = 1, jpj |
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| 142 | !CDIR NOVERRCHK |
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| 143 | DO ji = 1, jpi |
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| 144 | |
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| 145 | ! DUMMY VARIABLES FOR DIC, H+, AND BORATE |
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| 146 | zbot = borat(ji,jj,1) |
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| 147 | zfact = rhop(ji,jj,1) / 1000. + rtrn |
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| 148 | zdic = trb(ji,jj,1,jpdic) / zfact |
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| 149 | zph = MAX( hi(ji,jj,1), 1.e-10 ) / zfact |
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| 150 | zalka = trb(ji,jj,1,jptal) / zfact |
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| 151 | |
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| 152 | ! CALCULATE [ALK]([CO3--], [HCO3-]) |
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| 153 | zalk = zalka - ( akw3(ji,jj,1) / zph - zph / aphscale(ji,jj,1) & |
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| 154 | & + zbot / ( 1.+ zph / akb3(ji,jj,1) ) ) |
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| 155 | |
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| 156 | ! CALCULATE [H+] AND [H2CO3] |
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| 157 | zah2 = SQRT( (zdic-zalk)**2 + 4.* ( zalk * ak23(ji,jj,1) & |
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| 158 | & / ak13(ji,jj,1) ) * ( 2.* zdic - zalk ) ) |
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| 159 | zah2 = 0.5 * ak13(ji,jj,1) / zalk * ( ( zdic - zalk ) + zah2 ) |
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| 160 | zh2co3(ji,jj) = ( 2.* zdic - zalk ) / ( 2.+ ak13(ji,jj,1) / zah2 ) * zfact |
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| 161 | hi(ji,jj,1) = zah2 * zfact |
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| 162 | END DO |
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| 163 | END DO |
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| 164 | END DO |
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| 165 | |
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| 166 | |
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| 167 | ! -------------- |
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| 168 | ! COMPUTE FLUXES |
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| 169 | ! -------------- |
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| 170 | |
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| 171 | ! FIRST COMPUTE GAS EXCHANGE COEFFICIENTS |
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| 172 | ! ------------------------------------------- |
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| 173 | |
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| 174 | !CDIR NOVERRCHK |
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| 175 | DO jj = 1, jpj |
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| 176 | !CDIR NOVERRCHK |
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| 177 | DO ji = 1, jpi |
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| 178 | ztc = MIN( 35., tsn(ji,jj,1,jp_tem) ) |
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| 179 | ztc2 = ztc * ztc |
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| 180 | ztc3 = ztc * ztc2 |
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| 181 | ztc4 = ztc2 * ztc2 |
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| 182 | ! Compute the schmidt Number both O2 and CO2 |
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| 183 | zsch_co2 = 2116.8 - 136.25 * ztc + 4.7353 * ztc2 - 0.092307 * ztc3 + 0.0007555 * ztc4 |
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| 184 | zsch_o2 = 1920.4 - 135.6 * ztc + 5.2122 * ztc2 - 0.109390 * ztc3 + 0.0009377 * ztc4 |
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| 185 | ! wind speed |
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| 186 | zws = wndm(ji,jj) * wndm(ji,jj) |
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| 187 | ! Compute the piston velocity for O2 and CO2 |
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| 188 | zkgwan = 0.251 * zws |
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| 189 | zkgwan = zkgwan * xconv * ( 1.- fr_i(ji,jj) ) * tmask(ji,jj,1) |
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| 190 | # if defined key_degrad |
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| 191 | zkgwan = zkgwan * facvol(ji,jj,1) |
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| 192 | #endif |
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| 193 | ! compute gas exchange for CO2 and O2 |
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| 194 | zkgco2(ji,jj) = zkgwan * SQRT( 660./ zsch_co2 ) |
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| 195 | zkgo2 (ji,jj) = zkgwan * SQRT( 660./ zsch_o2 ) |
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| 196 | END DO |
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| 197 | END DO |
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| 198 | |
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| 199 | IF( lk_gas ) THEN |
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| 200 | !CDIR NOVERRCHK |
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| 201 | DO jj = 1, jpj |
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| 202 | !CDIR NOVERRCHK |
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| 203 | DO ji = 1, jpi |
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| 204 | ztc = MIN( 35., tsn(ji,jj,1,jp_tem) ) |
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| 205 | ztc2 = ztc * ztc |
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| 206 | ztc3 = ztc * ztc2 |
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| 207 | |
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| 208 | zsch_dms = 3628.5 - 234.58 * ztc + 7.8601 * ztc2 - 0.1148 * ztc3 |
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| 209 | !zsch_co = 1889.126 - 127.2150 * ztc + 4.499079 * ztc2 - |
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| 210 | !0.08973561 * ztc3 |
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| 211 | zsch_co = 2124 - 140.07 * ztc + 4.3825 * ztc2 - 0.0553 * ztc3 |
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| 212 | ! pb with the above equation - this one comes from Zafiriou 2008 see w/ B. Bonsang |
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| 213 | zsch_isp = 3546.535 - 217.2178 * ztc + 5.732073 * ztc2 - 0.06035193 * ztc3 |
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| 214 | !compute Schmidt number for cos, taken from Ulshofer |
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| 215 | zkin_vis = (1.792747 - 0.05126103 * ztc + 0.0005918645 * ztc2 ) * 1.E-6 ! m2/s |
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| 216 | zD = ( 10**( -1010. / ( ztc + 273.15 ) - 1.3246) ) * 1.E-4 ! cm2/s to m2/s |
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| 217 | zsch_cos = zkin_vis / zD |
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| 218 | zkgdms(ji,jj) = zkgwan * SQRT( 660./ zsch_dms ) |
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| 219 | zkgco (ji,jj) = zkgwan * SQRT( 660./ zsch_co ) |
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| 220 | zkgisp(ji,jj) = zkgwan * SQRT( 660./ zsch_isp) |
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| 221 | zkgcos(ji,jj) = zkgwan * SQRT( 660./ zsch_cos) |
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| 222 | zH_cos(ji,jj) = EXP( 12.722 - 3496./ ( ztc + 273.15 ) ) + rtrn |
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| 223 | ! |
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| 224 | zsch_n2o = 2301.1 - 151.1 * ztc + 4.7364 * ztc2 - 0.059431 * ztc3 |
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| 225 | zkgn2o(ji,jj) = zkgwan * SQRT( 660./ zsch_n2o ) |
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| 226 | END DO |
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| 227 | END DO |
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| 228 | ! |
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| 229 | ENDIF |
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| 230 | |
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| 231 | DO jj = 1, jpj |
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| 232 | DO ji = 1, jpi |
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| 233 | ! Compute CO2 flux for the sea and air |
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| 234 | zfld = satmco2(ji,jj) * patm(ji,jj) * tmask(ji,jj,1) * chemc(ji,jj) * zkgco2(ji,jj) ! (mol/L) * (m/s) |
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| 235 | zflu = zh2co3(ji,jj) * tmask(ji,jj,1) * zkgco2(ji,jj) ! (mol/L) (m/s) ? |
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| 236 | oce_co2(ji,jj) = ( zfld - zflu ) * rfact2 * e1e2t(ji,jj) * tmask(ji,jj,1) * 1000. |
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| 237 | ! compute the trend |
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| 238 | tra(ji,jj,1,jpdic) = tra(ji,jj,1,jpdic) + ( zfld - zflu ) * rfact2 / fse3t(ji,jj,1) |
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| 239 | |
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| 240 | ! Compute O2 flux |
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| 241 | zfld16 = patm(ji,jj) * chemo2(ji,jj,1) * tmask(ji,jj,1) * zkgo2(ji,jj) ! (mol/L) * (m/s) |
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| 242 | zflu16 = trb(ji,jj,1,jpoxy) * tmask(ji,jj,1) * zkgo2(ji,jj) |
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| 243 | zoflx(ji,jj) = zfld16 - zflu16 |
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| 244 | tra(ji,jj,1,jpoxy) = tra(ji,jj,1,jpoxy) + zoflx(ji,jj) * rfact2 / fse3t(ji,jj,1) |
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| 245 | END DO |
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| 246 | END DO |
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| 247 | |
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| 248 | |
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| 249 | IF( lk_gas ) THEN |
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| 250 | DO jj = 1, jpj |
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| 251 | DO ji = 1, jpi |
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| 252 | ! Compute DMS flux |
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| 253 | zfludms = trb(ji,jj,1,jpdms) * tmask(ji,jj,1) * zkgdms(ji,jj) |
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| 254 | zdmsflx(ji,jj) = -1. * zfludms |
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| 255 | tra(ji,jj,1,jpdms) = tra(ji,jj,1,jpdms) - ( zfludms ) / fse3t(ji,jj,1) |
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| 256 | |
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| 257 | ! Compute CO flux |
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| 258 | zfldco = atco * patm(ji,jj) * chemcos(ji,jj,1) *tmask(ji,jj,1) * zkgco(ji,jj) |
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| 259 | zfluco = trb(ji,jj,1,jpco) * tmask(ji,jj,1) * zkgco(ji,jj) |
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| 260 | zcoflx(ji,jj) = zfldco - zfluco |
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| 261 | tra(ji,jj,1,jpco) = tra(ji,jj,1,jpco) + zcoflx(ji,jj) / fse3t(ji,jj,1) |
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| 262 | |
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| 263 | ! Compute isoprene flux |
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| 264 | zfldisp = atisp * patm(ji,jj) * chemcos(ji,jj,2) *tmask(ji,jj,1) * zkgisp(ji,jj) ! (mol/L) * (m/s) |
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| 265 | zfluisp = trb(ji,jj,1,jpisp) * tmask(ji,jj,1) * zkgisp(ji,jj) |
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| 266 | zispflx(ji,jj) = zfldisp - zfluisp |
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| 267 | tra(ji,jj,1,jpisp) = tra(ji,jj,1,jpisp) + zispflx(ji,jj) / fse3t(ji,jj,1) |
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| 268 | |
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| 269 | ! Compute COS flux |
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| 270 | zfldcos = atccos * patm(ji,jj) * chemcos(ji,jj,3) *tmask(ji,jj,1) *zkgcos(ji,jj) ! (mol/L) * (m/s) |
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| 271 | zflucos = trb(ji,jj,1,jpcos) * tmask(ji,jj,1) * zkgcos(ji,jj) |
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| 272 | zcosflx(ji,jj) = zfldcos - zflucos |
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| 273 | tra(ji,jj,1,jpcos) = tra(ji,jj,1,jpcos) + zcosflx(ji,jj) / fse3t(ji,jj,1) |
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| 274 | |
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| 275 | ! Compute N2O flux |
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| 276 | zfldn2o = atcn2o * patm(ji,jj) * chemn2o(ji,jj) *tmask(ji,jj,1) * zkgn2o(ji,jj) |
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| 277 | zflun2o = trb(ji,jj,1,jpn2o) * tmask(ji,jj,1) * zkgn2o(ji,jj) |
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| 278 | znflx(ji,jj) = zfldn2o - zflun2o |
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| 279 | tra(ji,jj,1,jpn2o) = tra(ji,jj,1,jpn2o) + znflx(ji,jj) / fse3t(ji,jj,1) |
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| 280 | END DO |
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| 281 | END DO |
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| 282 | ENDIF |
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| 283 | |
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| 284 | |
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| 285 | t_oce_co2_flx = glob_sum( oce_co2(:,:) ) ! Total Flux of Carbon |
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| 286 | t_oce_co2_flx_cum = t_oce_co2_flx_cum + t_oce_co2_flx ! Cumulative Total Flux of Carbon |
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| 287 | ! t_atm_co2_flx = glob_sum( satmco2(:,:) * e1e2t(:,:) ) ! Total atmospheric pCO2 |
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| 288 | t_atm_co2_flx = atcco2 ! Total atmospheric pCO2 |
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| 289 | |
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| 290 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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| 291 | WRITE(charout, FMT="('flx ')") |
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| 292 | CALL prt_ctl_trc_info(charout) |
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| 293 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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| 294 | ENDIF |
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| 295 | |
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| 296 | IF( lk_iomput .AND. knt == nrdttrc ) THEN |
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| 297 | CALL wrk_alloc( jpi, jpj, zw2d ) |
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| 298 | IF( iom_use( "Cflx" ) ) THEN |
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| 299 | zw2d(:,:) = oce_co2(:,:) / e1e2t(:,:) * rfact2r |
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| 300 | CALL iom_put( "Cflx" , zw2d ) |
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| 301 | ENDIF |
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| 302 | IF( iom_use( "Oflx" ) ) THEN |
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| 303 | zw2d(:,:) = zoflx(:,:) * 1000 * tmask(:,:,1) |
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| 304 | CALL iom_put( "Oflx" , zw2d ) |
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| 305 | ENDIF |
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| 306 | IF( iom_use( "Kg" ) ) THEN |
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| 307 | zw2d(:,:) = zkgco2(:,:) * tmask(:,:,1) |
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| 308 | CALL iom_put( "Kg" , zw2d ) |
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| 309 | ENDIF |
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| 310 | IF( iom_use( "Dpco2" ) ) THEN |
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| 311 | zw2d(:,:) = ( satmco2(:,:) * patm(:,:) - zh2co3(:,:) / ( chemc(:,:) + rtrn ) ) * tmask(:,:,1) |
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| 312 | CALL iom_put( "Dpco2" , zw2d ) |
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| 313 | ENDIF |
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| 314 | IF( iom_use( "Dpo2" ) ) THEN |
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| 315 | zw2d(:,:) = ( atcox * patm(:,:) - atcox * trb(:,:,1,jpoxy) / ( chemo2(:,:,1) + rtrn ) ) * tmask(:,:,1) |
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| 316 | CALL iom_put( "Dpo2" , zw2d ) |
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| 317 | ENDIF |
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| 318 | IF( iom_use( "tcflx" ) ) CALL iom_put( "tcflx" , t_oce_co2_flx * rfact2r ) ! molC/s |
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| 319 | CALL iom_put( "tcflxcum" , t_oce_co2_flx_cum ) ! molC |
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| 320 | ! |
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| 321 | IF (lk_gas) THEN |
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| 322 | IF ( iom_use( "DMSflx" ) ) THEN |
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| 323 | zw2d(:,:) = zdmsflx(:,:) * 1000 * tmask(:,:,1) |
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| 324 | CALL iom_put( "DMSflx" , zw2d ) |
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| 325 | ENDIF |
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| 326 | IF ( iom_use( "COflx" ) ) THEN |
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| 327 | zw2d(:,:) = zcoflx(:,:) * 1000 * tmask(:,:,1) |
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| 328 | CALL iom_put( "COflx" , zw2d ) |
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| 329 | ENDIF |
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| 330 | IF ( iom_use( "ISPflx" ) ) THEN |
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| 331 | zw2d(:,:) = zispflx(:,:) * 1000 * tmask(:,:,1) |
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| 332 | CALL iom_put( "ISPflx" , zw2d ) |
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| 333 | ENDIF |
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| 334 | IF ( iom_use( "COSflx" ) ) THEN |
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| 335 | zw2d(:,:) = zcosflx(:,:) * 1000 * tmask(:,:,1) |
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| 336 | CALL iom_put( "COSflx" , zw2d ) |
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| 337 | ENDIF |
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| 338 | IF ( iom_use( "H_cos" ) ) THEN |
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| 339 | zw2d(:,:) = zH_cos(:,:) * tmask(:,:,1) |
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| 340 | CALL iom_put( "H_cos" , zw2d ) |
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| 341 | ENDIF |
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| 342 | IF ( iom_use( "N2Oflx" ) ) THEN |
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| 343 | zw2d(:,:) = znflx(:,:) * 1000 * tmask(:,:,1) |
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| 344 | CALL iom_put( "N2Oflx" , zw2d ) |
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| 345 | ENDIF |
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| 346 | ENDIF |
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| 347 | |
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| 348 | CALL wrk_dealloc( jpi, jpj, zw2d ) |
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| 349 | ELSE |
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| 350 | IF( ln_diatrc ) THEN |
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| 351 | trc2d(:,:,jp_pcs0_2d ) = oce_co2(:,:) / e1e2t(:,:) * rfact2r |
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| 352 | trc2d(:,:,jp_pcs0_2d + 1) = zoflx(:,:) * 1000 * tmask(:,:,1) |
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| 353 | trc2d(:,:,jp_pcs0_2d + 2) = zkgco2(:,:) * tmask(:,:,1) |
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| 354 | trc2d(:,:,jp_pcs0_2d + 3) = ( satmco2(:,:) * patm(:,:) - zh2co3(:,:) / ( chemc(:,:) + rtrn ) ) * tmask(:,:,1) |
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| 355 | ENDIF |
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| 356 | ENDIF |
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| 357 | ! |
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| 358 | CALL wrk_dealloc( jpi, jpj, zkgco2, zkgo2, zh2co3, zoflx ) |
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| 359 | ! |
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| 360 | IF( nn_timing == 1 ) CALL timing_stop('p4z_flx') |
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| 361 | ! |
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| 362 | END SUBROUTINE p4z_flx |
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| 363 | |
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| 364 | |
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| 365 | SUBROUTINE p4z_flx_init |
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| 366 | !!---------------------------------------------------------------------- |
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| 367 | !! *** ROUTINE p4z_flx_init *** |
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| 368 | !! |
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| 369 | !! ** Purpose : Initialization of atmospheric conditions |
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| 370 | !! |
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| 371 | !! ** Method : Read the nampisext namelist and check the parameters |
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| 372 | !! called at the first timestep (nittrc000) |
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| 373 | !! ** input : Namelist nampisext |
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| 374 | !!---------------------------------------------------------------------- |
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| 375 | NAMELIST/nampisext/ln_co2int, atcco2, clname, & |
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| 376 | #ifdef key_gas |
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| 377 | & atccos, atcn2o, & |
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| 378 | #endif |
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| 379 | & nn_offset |
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| 380 | INTEGER :: jm |
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| 381 | INTEGER :: ios ! Local integer output status for namelist read |
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| 382 | !!---------------------------------------------------------------------- |
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| 383 | ! |
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| 384 | |
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| 385 | REWIND( numnatp_ref ) ! Namelist nampisext in reference namelist : Pisces atm. conditions |
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| 386 | READ ( numnatp_ref, nampisext, IOSTAT = ios, ERR = 901) |
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| 387 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampisext in reference namelist', lwp ) |
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| 388 | |
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| 389 | REWIND( numnatp_cfg ) ! Namelist nampisext in configuration namelist : Pisces atm. conditions |
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| 390 | READ ( numnatp_cfg, nampisext, IOSTAT = ios, ERR = 902 ) |
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| 391 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampisext in configuration namelist', lwp ) |
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| 392 | IF(lwm) WRITE ( numonp, nampisext ) |
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| 393 | ! |
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| 394 | IF(lwp) THEN ! control print |
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| 395 | WRITE(numout,*) ' ' |
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| 396 | WRITE(numout,*) ' Namelist parameters for air-sea exchange, nampisext' |
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| 397 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' |
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| 398 | WRITE(numout,*) ' Choice for reading in the atm pCO2 file or constant value, ln_co2int =', ln_co2int |
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| 399 | WRITE(numout,*) ' ' |
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| 400 | ENDIF |
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| 401 | IF( .NOT.ln_co2int ) THEN |
|---|
| 402 | IF(lwp) THEN ! control print |
|---|
| 403 | WRITE(numout,*) ' Constant Atmospheric pCO2 value atcco2 =', atcco2 |
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| 404 | WRITE(numout,*) ' ' |
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| 405 | ENDIF |
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| 406 | satmco2(:,:) = atcco2 ! Initialisation of atmospheric pco2 |
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| 407 | ELSE |
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| 408 | IF(lwp) THEN |
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| 409 | WRITE(numout,*) ' Atmospheric pCO2 value from file clname =', TRIM( clname ) |
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| 410 | WRITE(numout,*) ' Offset model-data start year nn_offset =', nn_offset |
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| 411 | WRITE(numout,*) ' ' |
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| 412 | ENDIF |
|---|
| 413 | CALL ctl_opn( numco2, TRIM( clname) , 'OLD', 'FORMATTED', 'SEQUENTIAL', -1 , numout, lwp ) |
|---|
| 414 | jm = 0 ! Count the number of record in co2 file |
|---|
| 415 | DO |
|---|
| 416 | READ(numco2,*,END=100) |
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| 417 | jm = jm + 1 |
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| 418 | END DO |
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| 419 | 100 nmaxrec = jm - 1 |
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| 420 | ALLOCATE( years (nmaxrec) ) ; years (:) = 0._wp |
|---|
| 421 | ALLOCATE( atcco2h(nmaxrec) ) ; atcco2h(:) = 0._wp |
|---|
| 422 | |
|---|
| 423 | REWIND(numco2) |
|---|
| 424 | DO jm = 1, nmaxrec ! get xCO2 data |
|---|
| 425 | READ(numco2, *) years(jm), atcco2h(jm) |
|---|
| 426 | IF(lwp) WRITE(numout, '(f6.0,f7.2)') years(jm), atcco2h(jm) |
|---|
| 427 | END DO |
|---|
| 428 | CLOSE(numco2) |
|---|
| 429 | ENDIF |
|---|
| 430 | ! |
|---|
| 431 | oce_co2(:,:) = 0._wp ! Initialization of Flux of Carbon |
|---|
| 432 | t_oce_co2_flx = 0._wp |
|---|
| 433 | t_atm_co2_flx = 0._wp |
|---|
| 434 | ! |
|---|
| 435 | CALL p4z_patm( nit000 ) |
|---|
| 436 | ! |
|---|
| 437 | END SUBROUTINE p4z_flx_init |
|---|
| 438 | |
|---|
| 439 | SUBROUTINE p4z_patm( kt ) |
|---|
| 440 | |
|---|
| 441 | !!---------------------------------------------------------------------- |
|---|
| 442 | !! *** ROUTINE p4z_atm *** |
|---|
| 443 | !! |
|---|
| 444 | !! ** Purpose : Read and interpolate the external atmospheric sea-levl pressure |
|---|
| 445 | !! ** Method : Read the files and interpolate the appropriate variables |
|---|
| 446 | !! |
|---|
| 447 | !!---------------------------------------------------------------------- |
|---|
| 448 | !! * arguments |
|---|
| 449 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 450 | ! |
|---|
| 451 | INTEGER :: ierr |
|---|
| 452 | INTEGER :: ios ! Local integer output status for namelist read |
|---|
| 453 | CHARACTER(len=100) :: cn_dir ! Root directory for location of ssr files |
|---|
| 454 | TYPE(FLD_N) :: sn_patm ! informations about the fields to be read |
|---|
| 455 | !! |
|---|
| 456 | NAMELIST/nampisatm/ ln_presatm, sn_patm, cn_dir |
|---|
| 457 | |
|---|
| 458 | ! ! ----------------------- ! |
|---|
| 459 | IF( kt == nit000 ) THEN ! First call kt=nittrc000 ! |
|---|
| 460 | |
|---|
| 461 | REWIND( numnatp_ref ) ! Namelist nampisatm in reference namelist : Pisces atm. sea level pressure file |
|---|
| 462 | READ ( numnatp_ref, nampisatm, IOSTAT = ios, ERR = 901) |
|---|
| 463 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampisatm in reference namelist', lwp ) |
|---|
| 464 | |
|---|
| 465 | REWIND( numnatp_cfg ) ! Namelist nampisatm in configuration namelist : Pisces atm. sea level pressure file |
|---|
| 466 | READ ( numnatp_cfg, nampisatm, IOSTAT = ios, ERR = 902 ) |
|---|
| 467 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampisatm in configuration namelist', lwp ) |
|---|
| 468 | IF(lwm) WRITE ( numonp, nampisatm ) |
|---|
| 469 | ! |
|---|
| 470 | ! |
|---|
| 471 | IF(lwp) THEN !* control print |
|---|
| 472 | WRITE(numout,*) |
|---|
| 473 | WRITE(numout,*) ' Namelist nampisatm : Atmospheric Pressure as external forcing' |
|---|
| 474 | WRITE(numout,*) ' constant atmopsheric pressure (F) or from a file (T) ln_presatm = ', ln_presatm |
|---|
| 475 | WRITE(numout,*) |
|---|
| 476 | ENDIF |
|---|
| 477 | ! |
|---|
| 478 | IF( ln_presatm ) THEN |
|---|
| 479 | ALLOCATE( sf_patm(1), STAT=ierr ) !* allocate and fill sf_patm (forcing structure) with sn_patm |
|---|
| 480 | IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_flx: unable to allocate sf_patm structure' ) |
|---|
| 481 | ! |
|---|
| 482 | CALL fld_fill( sf_patm, (/ sn_patm /), cn_dir, 'p4z_flx', 'Atmospheric pressure ', 'nampisatm' ) |
|---|
| 483 | ALLOCATE( sf_patm(1)%fnow(jpi,jpj,1) ) |
|---|
| 484 | IF( sn_patm%ln_tint ) ALLOCATE( sf_patm(1)%fdta(jpi,jpj,1,2) ) |
|---|
| 485 | ENDIF |
|---|
| 486 | ! |
|---|
| 487 | IF( .NOT.ln_presatm ) patm(:,:) = 1.e0 ! Initialize patm if no reading from a file |
|---|
| 488 | ! |
|---|
| 489 | ENDIF |
|---|
| 490 | ! |
|---|
| 491 | IF( ln_presatm ) THEN |
|---|
| 492 | CALL fld_read( kt, 1, sf_patm ) !* input Patm provided at kt + 1/2 |
|---|
| 493 | patm(:,:) = sf_patm(1)%fnow(:,:,1) ! atmospheric pressure |
|---|
| 494 | ENDIF |
|---|
| 495 | ! |
|---|
| 496 | END SUBROUTINE p4z_patm |
|---|
| 497 | |
|---|
| 498 | INTEGER FUNCTION p4z_flx_alloc() |
|---|
| 499 | !!---------------------------------------------------------------------- |
|---|
| 500 | !! *** ROUTINE p4z_flx_alloc *** |
|---|
| 501 | !!---------------------------------------------------------------------- |
|---|
| 502 | ALLOCATE( oce_co2(jpi,jpj), satmco2(jpi,jpj), patm(jpi,jpj), STAT=p4z_flx_alloc ) |
|---|
| 503 | ! |
|---|
| 504 | IF( p4z_flx_alloc /= 0 ) CALL ctl_warn('p4z_flx_alloc : failed to allocate arrays') |
|---|
| 505 | ! |
|---|
| 506 | END FUNCTION p4z_flx_alloc |
|---|
| 507 | |
|---|
| 508 | #else |
|---|
| 509 | !!====================================================================== |
|---|
| 510 | !! Dummy module : No PISCES bio-model |
|---|
| 511 | !!====================================================================== |
|---|
| 512 | CONTAINS |
|---|
| 513 | SUBROUTINE p4z_flx( kt ) ! Empty routine |
|---|
| 514 | INTEGER, INTENT( in ) :: kt |
|---|
| 515 | WRITE(*,*) 'p4z_flx: You should not have seen this print! error?', kt |
|---|
| 516 | END SUBROUTINE p4z_flx |
|---|
| 517 | #endif |
|---|
| 518 | |
|---|
| 519 | !!====================================================================== |
|---|
| 520 | END MODULE p4zflx |
|---|
