| 1 |
module sw2s_m |
| 2 |
|
| 3 |
IMPLICIT NONE |
| 4 |
|
| 5 |
contains |
| 6 |
|
| 7 |
SUBROUTINE sw2s(knu, flag_aer, paki, palbd, palbp, pcg, pcld, pclear, & |
| 8 |
pdsig, pomega, poz, prmu, psec, ptau, pud, pwv, pqs, pfdown, pfup) |
| 9 |
|
| 10 |
USE dimens_m |
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USE dimphy |
| 12 |
USE raddim |
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USE radepsi |
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use swclr_m, only: swclr |
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use swde_m, only: swde |
| 16 |
use swr_m, only: swr |
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|
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! ------------------------------------------------------------------ |
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! PURPOSE. |
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! -------- |
| 21 |
|
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! THIS ROUTINE COMPUTES THE SHORTWAVE RADIATION FLUXES IN THE |
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! SECOND SPECTRAL INTERVAL FOLLOWING FOUQUART AND BONNEL (1980). |
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|
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! METHOD. |
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! ------- |
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|
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! 1. COMPUTES REFLECTIVITY/TRANSMISSIVITY CORRESPONDING TO |
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! CONTINUUM SCATTERING |
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! 2. COMPUTES REFLECTIVITY/TRANSMISSIVITY CORRESPONDING FOR |
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! A GREY MOLECULAR ABSORPTION |
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! 3. LAPLACE TRANSFORM ON THE PREVIOUS TO GET EFFECTIVE AMOUNTS |
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! OF ABSORBERS |
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! 4. APPLY H2O AND U.M.G. TRANSMISSION FUNCTIONS |
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! 5. MULTIPLY BY OZONE TRANSMISSION FUNCTION |
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|
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! REFERENCE. |
| 38 |
! ---------- |
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|
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! SEE RADIATION'S PART OF THE ECMWF RESEARCH DEPARTMENT |
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! DOCUMENTATION, AND FOUQUART AND BONNEL (1980) |
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|
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! AUTHOR. |
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! ------- |
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! JEAN-JACQUES MORCRETTE *ECMWF* |
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|
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! MODIFICATIONS. |
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! -------------- |
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! ORIGINAL : 89-07-14 |
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! 94-11-15 J.-J. MORCRETTE DIRECT/DIFFUSE ALBEDO |
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! ------------------------------------------------------------------ |
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! * ARGUMENTS: |
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|
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INTEGER knu |
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! -OB |
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logical, intent(in):: flag_aer |
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DOUBLE PRECISION paki(kdlon, 2) |
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DOUBLE PRECISION palbd(kdlon, 2) |
| 59 |
DOUBLE PRECISION palbp(kdlon, 2) |
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DOUBLE PRECISION pcg(kdlon, 2, kflev) |
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DOUBLE PRECISION pcld(kdlon, kflev) |
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DOUBLE PRECISION pclear(kdlon) |
| 63 |
DOUBLE PRECISION pdsig(kdlon, kflev) |
| 64 |
DOUBLE PRECISION pomega(kdlon, 2, kflev) |
| 65 |
DOUBLE PRECISION poz(kdlon, kflev) |
| 66 |
DOUBLE PRECISION pqs(kdlon, kflev) |
| 67 |
DOUBLE PRECISION prmu(kdlon) |
| 68 |
DOUBLE PRECISION psec(kdlon) |
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DOUBLE PRECISION ptau(kdlon, 2, kflev) |
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DOUBLE PRECISION pud(kdlon, 5, kflev+1) |
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DOUBLE PRECISION pwv(kdlon, kflev) |
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|
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DOUBLE PRECISION pfdown(kdlon, kflev+1) |
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DOUBLE PRECISION pfup(kdlon, kflev+1) |
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|
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! * LOCAL VARIABLES: |
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|
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INTEGER iind2(2), iind3(3) |
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DOUBLE PRECISION zcgaz(kdlon, kflev) |
| 80 |
DOUBLE PRECISION zfd(kdlon, kflev+1) |
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DOUBLE PRECISION zfu(kdlon, kflev+1) |
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DOUBLE PRECISION zg(kdlon) |
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DOUBLE PRECISION zgg(kdlon) |
| 84 |
DOUBLE PRECISION zpizaz(kdlon, kflev) |
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DOUBLE PRECISION zrayl(kdlon) |
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DOUBLE PRECISION zray1(kdlon, kflev+1) |
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DOUBLE PRECISION zray2(kdlon, kflev+1) |
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DOUBLE PRECISION zref(kdlon) |
| 89 |
DOUBLE PRECISION zrefz(kdlon, 2, kflev+1) |
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DOUBLE PRECISION zre1(kdlon) |
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DOUBLE PRECISION zre2(kdlon) |
| 92 |
DOUBLE PRECISION zrj(kdlon, 6, kflev+1) |
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DOUBLE PRECISION zrj0(kdlon, 6, kflev+1) |
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DOUBLE PRECISION zrk(kdlon, 6, kflev+1) |
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DOUBLE PRECISION zrk0(kdlon, 6, kflev+1) |
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DOUBLE PRECISION zrl(kdlon, 8) |
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DOUBLE PRECISION zrmue(kdlon, kflev+1) |
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DOUBLE PRECISION zrmu0(kdlon, kflev+1) |
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DOUBLE PRECISION zrmuz(kdlon) |
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DOUBLE PRECISION zrneb(kdlon) |
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DOUBLE PRECISION zr1(kdlon) |
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DOUBLE PRECISION zr2(kdlon, 2) |
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DOUBLE PRECISION zr3(kdlon, 3) |
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DOUBLE PRECISION zr4(kdlon) |
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DOUBLE PRECISION zr21(kdlon) |
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DOUBLE PRECISION zr22(kdlon) |
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DOUBLE PRECISION zs(kdlon) |
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DOUBLE PRECISION ztauaz(kdlon, kflev) |
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DOUBLE PRECISION zto1(kdlon) |
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DOUBLE PRECISION ztr(kdlon, 2, kflev+1) |
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DOUBLE PRECISION ztra1(kdlon, kflev+1) |
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DOUBLE PRECISION ztra2(kdlon, kflev+1) |
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DOUBLE PRECISION ztr1(kdlon) |
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DOUBLE PRECISION ztr2(kdlon) |
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DOUBLE PRECISION zw(kdlon) |
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DOUBLE PRECISION zw1(kdlon) |
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DOUBLE PRECISION zw2(kdlon, 2) |
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DOUBLE PRECISION zw3(kdlon, 3) |
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DOUBLE PRECISION zw4(kdlon) |
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DOUBLE PRECISION zw5(kdlon) |
| 121 |
|
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INTEGER jl, jk, k, jaj, ikm1, ikl, jn, jabs, jkm1 |
| 123 |
INTEGER jref, jkl, jklp1, jajp, jkki, jkkp4, jn2j, iabs |
| 124 |
DOUBLE PRECISION zrmum1, zwh2o, zcneb, zaa, zbb, zrki, zre11 |
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|
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! * Prescribed Data: |
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|
| 128 |
DOUBLE PRECISION rsun(2) |
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SAVE rsun |
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DOUBLE PRECISION rray(2, 6) |
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SAVE rray |
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DATA rsun(1)/0.441676d0/ |
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DATA rsun(2)/0.558324d0/ |
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DATA (rray(1,k), k=1, 6)/.428937d-01, .890743d+00, -.288555d+01, & |
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.522744d+01, -.469173d+01, .161645d+01/ |
| 136 |
DATA (rray(2,k), k=1, 6)/.697200d-02, .173297d-01, -.850903d-01, & |
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.248261d+00, -.302031d+00, .129662d+00/ |
| 138 |
|
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! ------------------------------------------------------------------ |
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|
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! * 1. SECOND SPECTRAL INTERVAL (0.68-4.00 MICRON) |
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! ------------------------------------------- |
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|
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|
| 145 |
|
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! * 1.1 OPTICAL THICKNESS FOR RAYLEIGH SCATTERING |
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! ----------------------------------------- |
| 148 |
|
| 149 |
|
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DO jl = 1, kdlon |
| 151 |
zrmum1 = 1. - prmu(jl) |
| 152 |
zrayl(jl) = rray(knu, 1) + zrmum1*(rray(knu,2)+zrmum1*(rray(knu, & |
| 153 |
3)+zrmum1*(rray(knu,4)+zrmum1*(rray(knu,5)+zrmum1*rray(knu,6))))) |
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END DO |
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|
| 156 |
|
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! ------------------------------------------------------------------ |
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|
| 159 |
! * 2. CONTINUUM SCATTERING CALCULATIONS |
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! --------------------------------- |
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|
| 162 |
|
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! * 2.1 CLEAR-SKY FRACTION OF THE COLUMN |
| 164 |
! -------------------------------- |
| 165 |
|
| 166 |
|
| 167 |
CALL swclr(knu, flag_aer, palbp, pdsig, zrayl, psec, zcgaz, zpizaz, & |
| 168 |
zray1, zray2, zrefz, zrj0, zrk0, zrmu0, ztauaz, ztra1, ztra2) |
| 169 |
|
| 170 |
|
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! * 2.2 CLOUDY FRACTION OF THE COLUMN |
| 172 |
! ----------------------------- |
| 173 |
|
| 174 |
|
| 175 |
CALL swr(knu, palbd, pcg, pcld, pomega, psec, ptau, zcgaz, & |
| 176 |
zpizaz, zray1, zray2, zrefz, zrj, zrk, zrmue, ztauaz, ztra1, ztra2) |
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|
| 178 |
|
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! ------------------------------------------------------------------ |
| 180 |
|
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! * 3. SCATTERING CALCULATIONS WITH GREY MOLECULAR ABSORPTION |
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! ------------------------------------------------------ |
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|
| 184 |
|
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jn = 2 |
| 186 |
|
| 187 |
DO jabs = 1, 2 |
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|
| 189 |
|
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! * 3.1 SURFACE CONDITIONS |
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! ------------------ |
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|
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|
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DO jl = 1, kdlon |
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zrefz(jl, 2, 1) = palbd(jl, knu) |
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zrefz(jl, 1, 1) = palbd(jl, knu) |
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END DO |
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|
| 199 |
|
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! * 3.2 INTRODUCING CLOUD EFFECTS |
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! ------------------------- |
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|
| 203 |
|
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DO jk = 2, kflev + 1 |
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jkm1 = jk - 1 |
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ikl = kflev + 1 - jkm1 |
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DO jl = 1, kdlon |
| 208 |
zrneb(jl) = pcld(jl, jkm1) |
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IF (jabs==1 .AND. zrneb(jl)>2.*zeelog) THEN |
| 210 |
zwh2o = max(pwv(jl,jkm1), zeelog) |
| 211 |
zcneb = max(zeelog, min(zrneb(jl),1.-zeelog)) |
| 212 |
zbb = pud(jl, jabs, jkm1)*pqs(jl, jkm1)/zwh2o |
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zaa = max((pud(jl,jabs,jkm1)-zcneb*zbb)/(1.-zcneb), zeelog) |
| 214 |
ELSE |
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zaa = pud(jl, jabs, jkm1) |
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zbb = zaa |
| 217 |
END IF |
| 218 |
zrki = paki(jl, jabs) |
| 219 |
zs(jl) = exp(-zrki*zaa*1.66) |
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zg(jl) = exp(-zrki*zaa/zrmue(jl,jk)) |
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ztr1(jl) = 0. |
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zre1(jl) = 0. |
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ztr2(jl) = 0. |
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zre2(jl) = 0. |
| 225 |
|
| 226 |
zw(jl) = pomega(jl, knu, jkm1) |
| 227 |
zto1(jl) = ptau(jl, knu, jkm1)/zw(jl) + ztauaz(jl, jkm1)/zpizaz(jl, & |
| 228 |
jkm1) + zbb*zrki |
| 229 |
|
| 230 |
zr21(jl) = ptau(jl, knu, jkm1) + ztauaz(jl, jkm1) |
| 231 |
zr22(jl) = ptau(jl, knu, jkm1)/zr21(jl) |
| 232 |
zgg(jl) = zr22(jl)*pcg(jl, knu, jkm1) + (1.-zr22(jl))*zcgaz(jl, jkm1) |
| 233 |
zw(jl) = zr21(jl)/zto1(jl) |
| 234 |
zref(jl) = zrefz(jl, 1, jkm1) |
| 235 |
zrmuz(jl) = zrmue(jl, jk) |
| 236 |
END DO |
| 237 |
|
| 238 |
CALL swde(zgg, zref, zrmuz, zto1, zw, zre1, zre2, ztr1, ztr2) |
| 239 |
|
| 240 |
DO jl = 1, kdlon |
| 241 |
|
| 242 |
zrefz(jl, 2, jk) = (1.-zrneb(jl))*(zray1(jl,jkm1)+zrefz(jl,2,jkm1)* & |
| 243 |
ztra1(jl,jkm1)*ztra2(jl,jkm1))*zg(jl)*zs(jl) + zrneb(jl)*zre1(jl) |
| 244 |
|
| 245 |
ztr(jl, 2, jkm1) = zrneb(jl)*ztr1(jl) + (ztra1(jl,jkm1))*zg(jl)*(1.- & |
| 246 |
zrneb(jl)) |
| 247 |
|
| 248 |
zrefz(jl, 1, jk) = (1.-zrneb(jl))*(zray1(jl,jkm1)+zrefz(jl,1,jkm1)* & |
| 249 |
ztra1(jl,jkm1)*ztra2(jl,jkm1)/(1.-zray2(jl,jkm1)*zrefz(jl,1, & |
| 250 |
jkm1)))*zg(jl)*zs(jl) + zrneb(jl)*zre2(jl) |
| 251 |
|
| 252 |
ztr(jl, 1, jkm1) = zrneb(jl)*ztr2(jl) + (ztra1(jl,jkm1)/(1.-zray2(jl, & |
| 253 |
jkm1)*zrefz(jl,1,jkm1)))*zg(jl)*(1.-zrneb(jl)) |
| 254 |
|
| 255 |
END DO |
| 256 |
END DO |
| 257 |
|
| 258 |
! * 3.3 REFLECT./TRANSMISSIVITY BETWEEN SURFACE AND LEVEL |
| 259 |
! ------------------------------------------------- |
| 260 |
|
| 261 |
|
| 262 |
DO jref = 1, 2 |
| 263 |
|
| 264 |
jn = jn + 1 |
| 265 |
|
| 266 |
DO jl = 1, kdlon |
| 267 |
zrj(jl, jn, kflev+1) = 1. |
| 268 |
zrk(jl, jn, kflev+1) = zrefz(jl, jref, kflev+1) |
| 269 |
END DO |
| 270 |
|
| 271 |
DO jk = 1, kflev |
| 272 |
jkl = kflev + 1 - jk |
| 273 |
jklp1 = jkl + 1 |
| 274 |
DO jl = 1, kdlon |
| 275 |
zre11 = zrj(jl, jn, jklp1)*ztr(jl, jref, jkl) |
| 276 |
zrj(jl, jn, jkl) = zre11 |
| 277 |
zrk(jl, jn, jkl) = zre11*zrefz(jl, jref, jkl) |
| 278 |
END DO |
| 279 |
END DO |
| 280 |
END DO |
| 281 |
END DO |
| 282 |
|
| 283 |
|
| 284 |
! ------------------------------------------------------------------ |
| 285 |
|
| 286 |
! * 4. INVERT GREY AND CONTINUUM FLUXES |
| 287 |
! -------------------------------- |
| 288 |
|
| 289 |
|
| 290 |
|
| 291 |
! * 4.1 UPWARD (ZRK) AND DOWNWARD (ZRJ) PSEUDO-FLUXES |
| 292 |
! --------------------------------------------- |
| 293 |
|
| 294 |
|
| 295 |
DO jk = 1, kflev + 1 |
| 296 |
DO jaj = 1, 5, 2 |
| 297 |
jajp = jaj + 1 |
| 298 |
DO jl = 1, kdlon |
| 299 |
zrj(jl, jaj, jk) = zrj(jl, jaj, jk) - zrj(jl, jajp, jk) |
| 300 |
zrk(jl, jaj, jk) = zrk(jl, jaj, jk) - zrk(jl, jajp, jk) |
| 301 |
zrj(jl, jaj, jk) = max(zrj(jl,jaj,jk), zeelog) |
| 302 |
zrk(jl, jaj, jk) = max(zrk(jl,jaj,jk), zeelog) |
| 303 |
END DO |
| 304 |
END DO |
| 305 |
END DO |
| 306 |
|
| 307 |
DO jk = 1, kflev + 1 |
| 308 |
DO jaj = 2, 6, 2 |
| 309 |
DO jl = 1, kdlon |
| 310 |
zrj(jl, jaj, jk) = max(zrj(jl,jaj,jk), zeelog) |
| 311 |
zrk(jl, jaj, jk) = max(zrk(jl,jaj,jk), zeelog) |
| 312 |
END DO |
| 313 |
END DO |
| 314 |
END DO |
| 315 |
|
| 316 |
! * 4.2 EFFECTIVE ABSORBER AMOUNTS BY INVERSE LAPLACE |
| 317 |
! --------------------------------------------- |
| 318 |
|
| 319 |
|
| 320 |
DO jk = 1, kflev + 1 |
| 321 |
jkki = 1 |
| 322 |
DO jaj = 1, 2 |
| 323 |
iind2(1) = jaj |
| 324 |
iind2(2) = jaj |
| 325 |
DO jn = 1, 2 |
| 326 |
jn2j = jn + 2*jaj |
| 327 |
jkkp4 = jkki + 4 |
| 328 |
|
| 329 |
! * 4.2.1 EFFECTIVE ABSORBER AMOUNTS |
| 330 |
! -------------------------- |
| 331 |
|
| 332 |
|
| 333 |
DO jl = 1, kdlon |
| 334 |
zw2(jl, 1) = log(zrj(jl,jn,jk)/zrj(jl,jn2j,jk))/paki(jl, jaj) |
| 335 |
zw2(jl, 2) = log(zrk(jl,jn,jk)/zrk(jl,jn2j,jk))/paki(jl, jaj) |
| 336 |
END DO |
| 337 |
|
| 338 |
! * 4.2.2 TRANSMISSION FUNCTION |
| 339 |
! --------------------- |
| 340 |
|
| 341 |
|
| 342 |
CALL swtt1(knu, 2, iind2, zw2, zr2) |
| 343 |
|
| 344 |
DO jl = 1, kdlon |
| 345 |
zrl(jl, jkki) = zr2(jl, 1) |
| 346 |
zrl(jl, jkkp4) = zr2(jl, 2) |
| 347 |
END DO |
| 348 |
|
| 349 |
jkki = jkki + 1 |
| 350 |
END DO |
| 351 |
END DO |
| 352 |
|
| 353 |
! * 4.3 UPWARD AND DOWNWARD FLUXES WITH H2O AND UMG ABSORPTION |
| 354 |
! ------------------------------------------------------ |
| 355 |
|
| 356 |
|
| 357 |
DO jl = 1, kdlon |
| 358 |
pfdown(jl, jk) = zrj(jl, 1, jk)*zrl(jl, 1)*zrl(jl, 3) + & |
| 359 |
zrj(jl, 2, jk)*zrl(jl, 2)*zrl(jl, 4) |
| 360 |
pfup(jl, jk) = zrk(jl, 1, jk)*zrl(jl, 5)*zrl(jl, 7) + & |
| 361 |
zrk(jl, 2, jk)*zrl(jl, 6)*zrl(jl, 8) |
| 362 |
END DO |
| 363 |
END DO |
| 364 |
|
| 365 |
|
| 366 |
! ------------------------------------------------------------------ |
| 367 |
|
| 368 |
! * 5. MOLECULAR ABSORPTION ON CLEAR-SKY FLUXES |
| 369 |
! ---------------------------------------- |
| 370 |
|
| 371 |
|
| 372 |
|
| 373 |
! * 5.1 DOWNWARD FLUXES |
| 374 |
! --------------- |
| 375 |
|
| 376 |
|
| 377 |
jaj = 2 |
| 378 |
iind3(1) = 1 |
| 379 |
iind3(2) = 2 |
| 380 |
iind3(3) = 3 |
| 381 |
|
| 382 |
DO jl = 1, kdlon |
| 383 |
zw3(jl, 1) = 0. |
| 384 |
zw3(jl, 2) = 0. |
| 385 |
zw3(jl, 3) = 0. |
| 386 |
zw4(jl) = 0. |
| 387 |
zw5(jl) = 0. |
| 388 |
zr4(jl) = 1. |
| 389 |
zfd(jl, kflev+1) = zrj0(jl, jaj, kflev+1) |
| 390 |
END DO |
| 391 |
DO jk = 1, kflev |
| 392 |
ikl = kflev + 1 - jk |
| 393 |
DO jl = 1, kdlon |
| 394 |
zw3(jl, 1) = zw3(jl, 1) + pud(jl, 1, ikl)/zrmu0(jl, ikl) |
| 395 |
zw3(jl, 2) = zw3(jl, 2) + pud(jl, 2, ikl)/zrmu0(jl, ikl) |
| 396 |
zw3(jl, 3) = zw3(jl, 3) + poz(jl, ikl)/zrmu0(jl, ikl) |
| 397 |
zw4(jl) = zw4(jl) + pud(jl, 4, ikl)/zrmu0(jl, ikl) |
| 398 |
zw5(jl) = zw5(jl) + pud(jl, 5, ikl)/zrmu0(jl, ikl) |
| 399 |
END DO |
| 400 |
|
| 401 |
CALL swtt1(knu, 3, iind3, zw3, zr3) |
| 402 |
|
| 403 |
DO jl = 1, kdlon |
| 404 |
! ZR4(JL) = EXP(-RSWCE*ZW4(JL)-RSWCP*ZW5(JL)) |
| 405 |
zfd(jl, ikl) = zr3(jl, 1)*zr3(jl, 2)*zr3(jl, 3)*zr4(jl)* & |
| 406 |
zrj0(jl, jaj, ikl) |
| 407 |
END DO |
| 408 |
END DO |
| 409 |
|
| 410 |
|
| 411 |
! * 5.2 UPWARD FLUXES |
| 412 |
! ------------- |
| 413 |
|
| 414 |
|
| 415 |
DO jl = 1, kdlon |
| 416 |
zfu(jl, 1) = zfd(jl, 1)*palbp(jl, knu) |
| 417 |
END DO |
| 418 |
|
| 419 |
DO jk = 2, kflev + 1 |
| 420 |
ikm1 = jk - 1 |
| 421 |
DO jl = 1, kdlon |
| 422 |
zw3(jl, 1) = zw3(jl, 1) + pud(jl, 1, ikm1)*1.66 |
| 423 |
zw3(jl, 2) = zw3(jl, 2) + pud(jl, 2, ikm1)*1.66 |
| 424 |
zw3(jl, 3) = zw3(jl, 3) + poz(jl, ikm1)*1.66 |
| 425 |
zw4(jl) = zw4(jl) + pud(jl, 4, ikm1)*1.66 |
| 426 |
zw5(jl) = zw5(jl) + pud(jl, 5, ikm1)*1.66 |
| 427 |
END DO |
| 428 |
|
| 429 |
CALL swtt1(knu, 3, iind3, zw3, zr3) |
| 430 |
|
| 431 |
DO jl = 1, kdlon |
| 432 |
! ZR4(JL) = EXP(-RSWCE*ZW4(JL)-RSWCP*ZW5(JL)) |
| 433 |
zfu(jl, jk) = zr3(jl, 1)*zr3(jl, 2)*zr3(jl, 3)*zr4(jl)* & |
| 434 |
zrk0(jl, jaj, jk) |
| 435 |
END DO |
| 436 |
END DO |
| 437 |
|
| 438 |
|
| 439 |
! ------------------------------------------------------------------ |
| 440 |
|
| 441 |
! * 6. INTRODUCTION OF OZONE AND H2O CONTINUUM ABSORPTION |
| 442 |
! -------------------------------------------------- |
| 443 |
|
| 444 |
iabs = 3 |
| 445 |
|
| 446 |
! * 6.1 DOWNWARD FLUXES |
| 447 |
! --------------- |
| 448 |
|
| 449 |
DO jl = 1, kdlon |
| 450 |
zw1(jl) = 0. |
| 451 |
zw4(jl) = 0. |
| 452 |
zw5(jl) = 0. |
| 453 |
zr1(jl) = 0. |
| 454 |
pfdown(jl, kflev+1) = ((1.-pclear(jl))*pfdown(jl,kflev+1)+pclear(jl)*zfd( & |
| 455 |
jl,kflev+1))*rsun(knu) |
| 456 |
END DO |
| 457 |
|
| 458 |
DO jk = 1, kflev |
| 459 |
ikl = kflev + 1 - jk |
| 460 |
DO jl = 1, kdlon |
| 461 |
zw1(jl) = zw1(jl) + poz(jl, ikl)/zrmue(jl, ikl) |
| 462 |
zw4(jl) = zw4(jl) + pud(jl, 4, ikl)/zrmue(jl, ikl) |
| 463 |
zw5(jl) = zw5(jl) + pud(jl, 5, ikl)/zrmue(jl, ikl) |
| 464 |
! ZR4(JL) = EXP(-RSWCE*ZW4(JL)-RSWCP*ZW5(JL)) |
| 465 |
END DO |
| 466 |
|
| 467 |
CALL swtt(knu, iabs, zw1, zr1) |
| 468 |
|
| 469 |
DO jl = 1, kdlon |
| 470 |
pfdown(jl, ikl) = ((1.-pclear(jl))*zr1(jl)*zr4(jl)*pfdown(jl,ikl)+ & |
| 471 |
pclear(jl)*zfd(jl,ikl))*rsun(knu) |
| 472 |
END DO |
| 473 |
END DO |
| 474 |
|
| 475 |
|
| 476 |
! * 6.2 UPWARD FLUXES |
| 477 |
! ------------- |
| 478 |
|
| 479 |
DO jl = 1, kdlon |
| 480 |
pfup(jl, 1) = ((1.-pclear(jl))*zr1(jl)*zr4(jl)*pfup(jl,1)+pclear(jl)*zfu( & |
| 481 |
jl,1))*rsun(knu) |
| 482 |
END DO |
| 483 |
|
| 484 |
DO jk = 2, kflev + 1 |
| 485 |
ikm1 = jk - 1 |
| 486 |
DO jl = 1, kdlon |
| 487 |
zw1(jl) = zw1(jl) + poz(jl, ikm1)*1.66 |
| 488 |
zw4(jl) = zw4(jl) + pud(jl, 4, ikm1)*1.66 |
| 489 |
zw5(jl) = zw5(jl) + pud(jl, 5, ikm1)*1.66 |
| 490 |
! ZR4(JL) = EXP(-RSWCE*ZW4(JL)-RSWCP*ZW5(JL)) |
| 491 |
END DO |
| 492 |
|
| 493 |
CALL swtt(knu, iabs, zw1, zr1) |
| 494 |
|
| 495 |
DO jl = 1, kdlon |
| 496 |
pfup(jl, jk) = ((1.-pclear(jl))*zr1(jl)*zr4(jl)*pfup(jl,jk)+pclear(jl)* & |
| 497 |
zfu(jl,jk))*rsun(knu) |
| 498 |
END DO |
| 499 |
END DO |
| 500 |
|
| 501 |
END SUBROUTINE sw2s |
| 502 |
|
| 503 |
end module sw2s_m |
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