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