| 1 | MODULE swmain_mod |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | |
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| 5 | CONTAINS |
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| 6 | |
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| 7 | SUBROUTINE SWMAIN ( KDLON, KFLEV, |
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| 8 | $ PCST, albedo, |
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| 9 | $ PRMU0, PDP, PPLEV, aerosol,PFRACT, |
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| 10 | $ PHEAT, PFLUXD,PFLUXU, |
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| 11 | & QVISsQREF3d,omegaVIS3d,gVIS3d) |
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| 12 | |
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| 13 | use dimradmars_mod, only: ndlo2, ndlon, nflev, |
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| 14 | & nsun,naerkind |
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| 15 | use yomlw_h, only: nlaylte, gcp |
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| 16 | IMPLICIT NONE |
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| 17 | |
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| 18 | c DECLARATIONS |
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| 19 | c ------------- |
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| 20 | include "callkeys.h" |
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| 21 | c |
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| 22 | c PURPOSE. |
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| 23 | c -------- |
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| 24 | c |
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| 25 | c This routine computes the shortwave (solar wavelength) |
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| 26 | c radiation fluxes in two spectral intervals |
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| 27 | c and heating rate on the first "nlaylte" layers. |
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| 28 | C |
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| 29 | c Francois Forget (2000), adapted from |
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| 30 | C Fouquart and Bonnel's ECMWF program |
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| 31 | c |
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| 32 | C IMPLICIT ARGUMENTS : |
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| 33 | C -------------------- |
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| 34 | C |
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| 35 | C ==== INPUTS === |
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| 36 | c |
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| 37 | c KDLON : number of horizontal grid points |
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| 38 | c PCST : Solar constant on Mars (W.m-2) |
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| 39 | c albedo hemispheric surface albedo |
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| 40 | c albedo (i,1) : mean albedo for solar band#1 |
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| 41 | c (see below) |
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| 42 | c albedo (i,2) : mean albedo for solar band#2 |
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| 43 | c (see below) |
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| 44 | c PRMU0 : cos of solar zenith angle (=1 when sun at zenith) |
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| 45 | c PDP : Layer thickness (Pa) |
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| 46 | c PPLEV pressure (Pa) at boundaries of each layer |
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| 47 | c aerosol aerosol extinction optical depth |
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| 48 | c at reference wavelength "longrefvis" set |
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| 49 | c in dimradmars_mod , in each layer, for one of |
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| 50 | c the "naerkind" kind of aerosol optical properties. |
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| 51 | c Pfract : day fraction of the time interval |
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| 52 | c =1 during the full day ; =0 during the night |
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| 53 | c QVISsQREF3d,omegaVIS3d,gVIS3d Aerosol optical properties |
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| 54 | c |
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| 55 | C ==== OUTPUTS === |
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| 56 | c PHEAT : Heating rate (K/s) |
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| 57 | c PFLUXD : SW downward flux at boundaries of each layer (W.m-2) |
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| 58 | c PFLUXU : SW upward flux at boundaries of each layer (W.m-2) |
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| 59 | C |
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| 60 | C ---------- |
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| 61 | C |
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| 62 | C----------------------------------------------------------------------- |
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| 63 | C |
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| 64 | C |
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| 65 | C----------------------------------------------------------------------- |
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| 66 | C |
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| 67 | C ARGUMENTS |
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| 68 | C --------- |
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| 69 | c INPUTS/OUTPUTS: |
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| 70 | c --------- |
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| 71 | |
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| 72 | INTEGER, iNTENT(IN) :: KDLON, KFLEV |
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| 73 | REAL, iNTENT(IN) :: aerosol(NDLO2,KFLEV,naerkind),PRMU0(NDLO2) |
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| 74 | REAL, iNTENT(IN) :: PCST |
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| 75 | REAL, iNTENT(IN) :: albedo(NDLO2,2) |
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| 76 | REAL, iNTENT(IN) :: PDP(NDLO2,KFLEV) |
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| 77 | REAL, iNTENT(IN) :: PPLEV(NDLO2,KFLEV+1) |
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| 78 | REAL, iNTENT(OUT) :: PHEAT(NDLO2,KFLEV) |
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| 79 | REAL, iNTENT(IN) :: PFRACT(NDLO2) |
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| 80 | REAL, iNTENT(OUT) :: PFLUXD(NDLON,NFLEV+1,2) |
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| 81 | REAL, iNTENT(OUT) :: PFLUXU(NDLON,NFLEV+1,2) |
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| 82 | REAL, iNTENT(IN) :: QVISsQREF3d(NDLO2,KFLEV,nsun,naerkind) |
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| 83 | REAL, iNTENT(IN) :: omegaVIS3d(NDLO2,KFLEV,nsun,naerkind) |
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| 84 | REAL, iNTENT(IN) :: gVIS3d(NDLO2,KFLEV,nsun,naerkind) |
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| 85 | |
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| 86 | C LOCAL ARRAYS |
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| 87 | C ------------ |
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| 88 | REAL ZPSOL(NDLO2) |
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| 89 | REAL ZDSIG(NDLON,NFLEV), ZFACT(NDLON) |
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| 90 | S , ZFD(NDLON,NFLEV+1) |
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| 91 | S , ZFU(NDLON,NFLEV+1) |
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| 92 | S , ZRMU(NDLON), ZSEC(NDLON) |
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| 93 | S , ZUD(NDLON,3,NFLEV+1), ZUM(NDLON,NFLEV+1) |
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| 94 | REAL ZSIGN(NDLON), ZSIGO(NDLON) |
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| 95 | |
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| 96 | c following line has been changed, kflev--->nflev (to avoid error message |
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| 97 | c when compiling on NASA Ames Sun) |
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| 98 | REAL ZFDOWN(NDLO2,NFLEV+1),ZFUP(NDLO2,NFLEV+1) |
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| 99 | |
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| 100 | integer jl, jk, jkp1, jkl |
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| 101 | integer INU |
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| 102 | real zdfnet |
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| 103 | |
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| 104 | C ------------------------------------------------------------------ |
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| 105 | C Initializations : |
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| 106 | C ------------------------------------------------------------------ |
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| 107 | |
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| 108 | c Incident Solar flux and corrected angle in the atmosphere |
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| 109 | c ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 110 | DO JL = 1 , KDLON |
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| 111 | c Incident Flux at the top of the atmosphere |
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| 112 | ZFACT(JL)= PRMU0(JL) * PCST * PFRACT(JL) |
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| 113 | |
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| 114 | c Cos of solar zenith angle CORRECTED for high zenith angle |
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| 115 | if (PRMU0(JL).GT.0) then |
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| 116 | ZRMU(JL)=SQRT(1224.* PRMU0(JL) * PRMU0(JL) + 1.) / 35. |
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| 117 | else |
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| 118 | ZRMU(JL)= 1. / 35. |
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| 119 | endif |
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| 120 | ZSEC(JL)=1./ZRMU(JL) |
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| 121 | END DO |
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| 122 | |
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| 123 | c Calcul of ZDSIG (thickness of layers in sigma coordinates) |
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| 124 | c ~~~~~~~~~~~~~~~ |
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| 125 | DO JL = 1 , KDLON |
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| 126 | ZSIGO(JL) = 1.0 |
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| 127 | ZPSOL(JL) = PPLEV(JL,1) |
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| 128 | END DO |
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| 129 | DO JK = 1 , nlaylte |
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| 130 | JKP1 = JK + 1 |
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| 131 | JKL = nlaylte+1 - JK |
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| 132 | DO JL = 1 , KDLON |
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| 133 | ZSIGN(JL) = PPLEV(JL,JKP1) / PPLEV(JL,1) |
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| 134 | ZDSIG(JL,JK) = ZSIGO(JL) - ZSIGN(JL) |
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| 135 | ZSIGO(JL) = ZSIGN(JL) |
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| 136 | END DO |
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| 137 | END DO |
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| 138 | |
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| 139 | C------------------------------------------------------------------ |
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| 140 | C LOOP ON SPECTRAL INTERVAL in solar spectrum |
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| 141 | C------------------------------------------------------------------ |
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| 142 | c 2 spectral interval in solar spectrum : |
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| 143 | c - INU=1: between wavelength "long1vis" and "long2vis" set in dimradmars_mod |
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| 144 | c - INU=2: between wavelength "long2vis" and "long3vis" set in dimradmars_mod |
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| 145 | |
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| 146 | DO INU = 1,2 |
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| 147 | |
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| 148 | ! NB: swrtype is set in callkeys.h |
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| 149 | if (swrtype.eq.1) then ! Fouquart |
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| 150 | CALL SWR_FOUQUART( KDLON, kflev, INU |
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| 151 | & , aerosol,QVISsQREF3d,omegaVIS3d,gVIS3d |
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| 152 | & , albedo,ZDSIG,ZPSOL,ZRMU,ZSEC |
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| 153 | & , ZFD,ZFU ) |
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| 154 | else |
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| 155 | if (swrtype.eq.2) then ! Toon |
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| 156 | CALL SWR_TOON( KDLON, kflev, INU |
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| 157 | & , aerosol,QVISsQREF3d,omegaVIS3d,gVIS3d |
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| 158 | & , albedo,ZDSIG,ZPSOL,ZRMU,ZSEC |
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| 159 | & , ZFD,ZFU ) |
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| 160 | else |
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| 161 | write(*,*) "swmain: invalid swrtype value !!" |
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| 162 | call abort_physic("swmain","invalid swrtype",1) |
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| 163 | endif ! of if (swrtype.eq.2) |
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| 164 | endif ! of if (swrtype.eq.1) |
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| 165 | |
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| 166 | DO JK = 1 , nlaylte+1 |
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| 167 | DO JL = 1 , KDLON |
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| 168 | PFLUXD(JL,JK,INU)=ZFD(JL,JK)*ZFACT(JL) |
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| 169 | PFLUXU(JL,JK,INU)=ZFU(JL,JK)*ZFACT(JL) |
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| 170 | END DO |
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| 171 | END DO |
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| 172 | END DO ! of DO INU=1,2 |
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| 173 | |
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| 174 | C ------------------------------------------------------ |
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| 175 | C HEATING RATES |
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| 176 | C ------------------------------------------------------ |
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| 177 | |
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| 178 | DO JK = 1 , nlaylte+1 |
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| 179 | DO JL = 1 , KDLON |
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| 180 | c wavelength integrated flux at every level: |
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| 181 | ZFUP(JL,JK)= (PFLUXU(JL,JK,1)+ PFLUXU(JL,JK,2)) |
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| 182 | ZFDOWN(JL,JK)= (PFLUXD(JL,JK,1)+ PFLUXD(JL,JK,2)) |
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| 183 | END DO |
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| 184 | END DO |
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| 185 | |
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| 186 | DO JK = 1 , nlaylte |
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| 187 | DO JL = 1 , KDLON |
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| 188 | ZDFNET = ZFUP (JL,JK ) - ZFDOWN(JL,JK ) |
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| 189 | S -ZFUP (JL,JK+1) + ZFDOWN(JL,JK+1) |
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| 190 | c Heating rate |
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| 191 | PHEAT(JL,JK) = gcp * ZDFNET / PDP(JL,JK) |
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| 192 | END DO |
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| 193 | END DO |
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| 194 | |
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| 195 | END SUBROUTINE SWMAIN |
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| 196 | |
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| 197 | END MODULE swmain_mod |
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