| 1 | module sfluxv_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 SFLUXV(DTAUV,TAUV,TAUCUMV,RSFV,DWNV,WBARV,COSBV, |
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| 8 | * UBAR0,STEL,NFLUXTOPV,FLUXTOPVDN, |
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| 9 | * NFLUXOUTV_nu,NFLUXGNDV_nu,NFLUXTOPV_nu, |
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| 10 | * FMNETV,FMNETV_NU,FLUXUPV,FLUXDNV, |
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| 11 | * FZEROV,taugsurf) |
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| 12 | |
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| 13 | use radinc_h, only: L_TAUMAX, L_LEVELS, L_NSPECTV, L_NGAUSS |
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| 14 | use radinc_h, only: L_NLAYRAD, L_NLEVRAD |
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| 15 | use radcommon_h, only: tlimit, gweight |
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| 16 | use gfluxv_mod, only: gfluxv |
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| 17 | |
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| 18 | implicit none |
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| 19 | |
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| 20 | real*8 FMNETV(L_NLAYRAD) |
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| 21 | real*8 FMNETV_NU(L_NLAYRAD,L_NSPECTV) |
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| 22 | real*8 TAUCUMV(L_LEVELS,L_NSPECTV,L_NGAUSS) |
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| 23 | real*8 TAUV(L_NLEVRAD,L_NSPECTV,L_NGAUSS) |
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| 24 | real*8 DTAUV(L_NLAYRAD,L_NSPECTV,L_NGAUSS), DWNV(L_NSPECTV) |
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| 25 | real*8 FMUPV(L_NLAYRAD), FMDV(L_NLAYRAD) |
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| 26 | real*8 COSBV(L_NLAYRAD,L_NSPECTV,L_NGAUSS) |
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| 27 | real*8 WBARV(L_NLAYRAD,L_NSPECTV,L_NGAUSS) |
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| 28 | real*8 STEL(L_NSPECTV) |
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| 29 | real*8 FLUXUPV(L_NLAYRAD), FLUXDNV(L_NLAYRAD) |
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| 30 | real*8 NFLUXTOPV, FLUXUP, FLUXDN,FLUXTOPVDN |
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| 31 | real*8 NFLUXTOPV_nu(L_NSPECTV) |
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| 32 | real*8 NFLUXOUTV_nu(L_NSPECTV) |
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| 33 | real*8 NFLUXGNDV_nu(L_NSPECTV) |
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| 34 | |
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| 35 | integer L, NG, NW, NG1,k |
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| 36 | real*8 ubar0, f0pi, btop, bsurf, taumax, eterm |
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| 37 | real*8 rsfv(L_NSPECTV) ! Spectral dependency added by MT2015. |
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| 38 | real*8 FZEROV(L_NSPECTV) |
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| 39 | |
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| 40 | real*8 DIFFV, DIFFVT |
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| 41 | real*8 taugsurf(L_NSPECTV,L_NGAUSS-1), fzero |
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| 42 | |
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| 43 | C======================================================================C |
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| 44 | |
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| 45 | TAUMAX = L_TAUMAX |
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| 46 | |
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| 47 | C ZERO THE NET FLUXES |
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| 48 | |
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| 49 | NFLUXTOPV = 0.0 |
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| 50 | FLUXTOPVDN = 0.0 |
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| 51 | |
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| 52 | DO NW=1,L_NSPECTV |
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| 53 | NFLUXOUTV_nu(NW)=0.0 |
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| 54 | NFLUXGNDV_nu(NW)=0.0 |
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| 55 | NFLUXTOPV_nu(nw)=0.0 |
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| 56 | DO L=1,L_NLAYRAD |
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| 57 | FMNETV_NU(L,NW) = 0.0 |
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| 58 | END DO |
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| 59 | END DO |
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| 60 | |
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| 61 | DO L=1,L_NLAYRAD |
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| 62 | FMNETV(L) = 0.0 |
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| 63 | FLUXUPV(L) = 0.0 |
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| 64 | FLUXDNV(L) = 0.0 |
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| 65 | END DO |
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| 66 | |
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| 67 | DIFFVT = 0.0 |
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| 68 | |
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| 69 | C WE NOW ENTER A MAJOR LOOP OVER SPECTRAL INTERVALS IN THE VISIBLE |
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| 70 | C TO CALCULATE THE NET FLUX IN EACH SPECTRAL INTERVAL |
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| 71 | |
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| 72 | DO 500 NW=1,L_NSPECTV |
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| 73 | |
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| 74 | F0PI = STEL(NW) |
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| 75 | |
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| 76 | FZERO = FZEROV(NW) |
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| 77 | IF(FZERO.ge.0.99) goto 40 |
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| 78 | DO NG=1,L_NGAUSS-1 |
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| 79 | |
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| 80 | if(TAUGSURF(NW,NG) .lt. TLIMIT) then |
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| 81 | |
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| 82 | fzero = fzero + (1.0-FZEROV(NW))*GWEIGHT(NG) |
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| 83 | |
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| 84 | goto 30 |
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| 85 | end if |
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| 86 | |
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| 87 | C SET UP THE UPPER AND LOWER BOUNDARY CONDITIONS ON THE VISIBLE |
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| 88 | |
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| 89 | BTOP = 0.0 |
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| 90 | !BSURF = 0./0. ! why was this here? |
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| 91 | BSURF = 0. |
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| 92 | C LOOP OVER THE NTERMS BEGINNING HERE |
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| 93 | |
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| 94 | |
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| 95 | ! FACTOR = 1.0D0 - WDEL(1)*CDEL(1)**2 |
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| 96 | ! TAU(1) = TDEL(1)*FACTOR |
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| 97 | |
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| 98 | |
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| 99 | ETERM = MIN(TAUV(L_NLEVRAD,NW,NG),TAUMAX) |
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| 100 | BSURF = RSFV(NW)*UBAR0*STEL(NW)*EXP(-ETERM/UBAR0) |
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| 101 | |
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| 102 | C WE CAN NOW SOLVE FOR THE COEFFICIENTS OF THE TWO STREAM |
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| 103 | C CALL A SUBROUTINE THAT SOLVES FOR THE FLUX TERMS |
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| 104 | C WITHIN EACH INTERVAL AT THE MIDPOINT WAVENUMBER |
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| 105 | C |
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| 106 | C FUW AND FDW ARE WORKING FLUX ARRAYS THAT WILL BE USED TO |
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| 107 | C RETURN FLUXES FOR A GIVEN NT |
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| 108 | |
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| 109 | |
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| 110 | CALL GFLUXV(DTAUV(1,NW,NG),TAUV(1,NW,NG),TAUCUMV(1,NW,NG), |
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| 111 | * WBARV(1,NW,NG),COSBV(1,NW,NG),UBAR0,F0PI,RSFV(NW), |
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| 112 | * BTOP,BSURF,FMUPV,FMDV,DIFFV,FLUXUP,FLUXDN) |
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| 113 | |
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| 114 | C NOW CALCULATE THE CUMULATIVE VISIBLE NET FLUX |
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| 115 | |
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| 116 | NFLUXTOPV = NFLUXTOPV+(FLUXUP-FLUXDN)*GWEIGHT(NG)* |
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| 117 | * (1.0-FZEROV(NW)) |
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| 118 | FLUXTOPVDN = FLUXTOPVDN+FLUXDN*GWEIGHT(NG)* |
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| 119 | * (1.0-FZEROV(NW)) |
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| 120 | DO L=1,L_NLAYRAD |
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| 121 | FMNETV(L)=FMNETV(L)+( FMUPV(L)-FMDV(L) )* |
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| 122 | * GWEIGHT(NG)*(1.0-FZEROV(NW)) |
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| 123 | FMNETV_NU(L,NW)=FMNETV_NU(L,NW)+( FMUPV(L)-FMDV(L) )* |
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| 124 | * GWEIGHT(NG)*(1.0-FZEROV(NW)) |
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| 125 | FLUXUPV(L) = FLUXUPV(L) + FMUPV(L)*GWEIGHT(NG)* |
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| 126 | * (1.0-FZEROV(NW)) |
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| 127 | FLUXDNV(L) = FLUXDNV(L) + FMDV(L)*GWEIGHT(NG)* |
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| 128 | * (1.0-FZEROV(NW)) |
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| 129 | END DO |
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| 130 | |
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| 131 | c and same thing by spectral band... (RDW) |
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| 132 | NFLUXTOPV_nu(NW) = NFLUXTOPV_nu(NW) |
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| 133 | * +(FLUXUP-FLUXDN)*GWEIGHT(NG)* |
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| 134 | * (1.0-FZEROV(NW)) |
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| 135 | |
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| 136 | c band-resolved flux leaving TOA (RDW) |
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| 137 | NFLUXOUTV_nu(NW) = NFLUXOUTV_nu(NW) |
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| 138 | * +FLUXUP*GWEIGHT(NG)*(1.0-FZEROV(NW)) |
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| 139 | |
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| 140 | c band-resolved flux at ground (RDW) |
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| 141 | NFLUXGNDV_nu(NW) = NFLUXGNDV_nu(NW) |
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| 142 | * +FMDV(L_NLAYRAD)*GWEIGHT(NG)*(1.0-FZEROV(NW)) |
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| 143 | |
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| 144 | |
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| 145 | C THE DIFFUSE COMPONENT OF THE DOWNWARD STELLAR FLUX |
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| 146 | |
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| 147 | DIFFVT = DIFFVT + DIFFV*GWEIGHT(NG)*(1.0-FZEROV(NW)) |
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| 148 | |
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| 149 | 30 CONTINUE |
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| 150 | |
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| 151 | END DO ! the Gauss loop |
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| 152 | |
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| 153 | 40 continue |
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| 154 | C Special 17th Gauss point |
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| 155 | |
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| 156 | NG = L_NGAUSS |
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| 157 | |
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| 158 | C SET UP THE UPPER AND LOWER BOUNDARY CONDITIONS ON THE VISIBLE |
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| 159 | |
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| 160 | BTOP = 0.0 |
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| 161 | |
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| 162 | C LOOP OVER THE NTERMS BEGINNING HERE |
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| 163 | |
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| 164 | ETERM = MIN(TAUV(L_NLEVRAD,NW,NG),TAUMAX) |
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| 165 | BSURF = RSFV(NW)*UBAR0*STEL(NW)*EXP(-ETERM/UBAR0) |
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| 166 | |
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| 167 | |
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| 168 | C WE CAN NOW SOLVE FOR THE COEFFICIENTS OF THE TWO STREAM |
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| 169 | C CALL A SUBROUTINE THAT SOLVES FOR THE FLUX TERMS |
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| 170 | C WITHIN EACH INTERVAL AT THE MIDPOINT WAVENUMBER |
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| 171 | C |
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| 172 | C FUW AND FDW ARE WORKING FLUX ARRAYS THAT WILL BE USED TO |
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| 173 | C RETURN FLUXES FOR A GIVEN NT |
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| 174 | |
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| 175 | CALL GFLUXV(DTAUV(1,NW,NG),TAUV(1,NW,NG),TAUCUMV(1,NW,NG), |
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| 176 | * WBARV(1,NW,NG),COSBV(1,NW,NG),UBAR0,F0PI,RSFV(NW), |
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| 177 | * BTOP,BSURF,FMUPV,FMDV,DIFFV,FLUXUP,FLUXDN) |
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| 178 | |
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| 179 | |
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| 180 | C NOW CALCULATE THE CUMULATIVE VISIBLE NET FLUX |
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| 181 | |
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| 182 | NFLUXTOPV = NFLUXTOPV+(FLUXUP-FLUXDN)*FZERO |
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| 183 | FLUXTOPVDN = FLUXTOPVDN+FLUXDN*FZERO |
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| 184 | DO L=1,L_NLAYRAD |
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| 185 | FMNETV(L)=FMNETV(L)+( FMUPV(L)-FMDV(L) )*FZERO |
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| 186 | FMNETV_NU(L,NW)=FMNETV_NU(L,NW)+( FMUPV(L)-FMDV(L) )*FZERO |
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| 187 | FLUXUPV(L) = FLUXUPV(L) + FMUPV(L)*FZERO |
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| 188 | FLUXDNV(L) = FLUXDNV(L) + FMDV(L)*FZERO |
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| 189 | END DO |
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| 190 | |
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| 191 | c and same thing by spectral band... (RDW) |
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| 192 | NFLUXTOPV_nu(NW) = NFLUXTOPV_nu(NW) |
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| 193 | * +(FLUXUP-FLUXDN)*FZERO |
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| 194 | |
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| 195 | c band-resolved flux leaving TOA (RDW) |
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| 196 | NFLUXOUTV_nu(NW) = NFLUXOUTV_nu(NW) |
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| 197 | * +FLUXUP*FZERO |
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| 198 | |
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| 199 | c band-resolved flux at ground (RDW) |
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| 200 | NFLUXGNDV_nu(NW) = NFLUXGNDV_nu(NW)+FMDV(L_NLAYRAD)*FZERO |
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| 201 | |
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| 202 | |
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| 203 | C THE DIFFUSE COMPONENT OF THE DOWNWARD STELLAR FLUX |
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| 204 | |
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| 205 | DIFFVT = DIFFVT + DIFFV*FZERO |
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| 206 | |
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| 207 | |
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| 208 | 500 CONTINUE |
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| 209 | |
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| 210 | |
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| 211 | C *** END OF MAJOR SPECTRAL INTERVAL LOOP IN THE VISIBLE***** |
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| 212 | |
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| 213 | |
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| 214 | END SUBROUTINE SFLUXV |
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| 215 | |
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| 216 | end module sfluxv_mod |
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| 217 | |
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