| 1 |
SUBROUTINE sw1s(knu, paer, flag_aer, tauae, pizae, cgae, palbd, palbp, pcg, & |
| 2 |
pcld, pclear, pcldsw, pdsig, pomega, poz, prmu, psec, ptau, pud, pfd, & |
| 3 |
pfu) |
| 4 |
USE dimens_m |
| 5 |
USE dimphy |
| 6 |
USE raddim |
| 7 |
IMPLICIT NONE |
| 8 |
|
| 9 |
! ------------------------------------------------------------------ |
| 10 |
! PURPOSE. |
| 11 |
! -------- |
| 12 |
|
| 13 |
! THIS ROUTINE COMPUTES THE SHORTWAVE RADIATION FLUXES IN TWO |
| 14 |
! SPECTRAL INTERVALS FOLLOWING FOUQUART AND BONNEL (1980). |
| 15 |
|
| 16 |
! METHOD. |
| 17 |
! ------- |
| 18 |
|
| 19 |
! 1. COMPUTES UPWARD AND DOWNWARD FLUXES CORRESPONDING TO |
| 20 |
! CONTINUUM SCATTERING |
| 21 |
! 2. MULTIPLY BY OZONE TRANSMISSION FUNCTION |
| 22 |
|
| 23 |
! REFERENCE. |
| 24 |
! ---------- |
| 25 |
|
| 26 |
! SEE RADIATION'S PART OF THE ECMWF RESEARCH DEPARTMENT |
| 27 |
! DOCUMENTATION, AND FOUQUART AND BONNEL (1980) |
| 28 |
|
| 29 |
! AUTHOR. |
| 30 |
! ------- |
| 31 |
! JEAN-JACQUES MORCRETTE *ECMWF* |
| 32 |
|
| 33 |
! MODIFICATIONS. |
| 34 |
! -------------- |
| 35 |
! ORIGINAL : 89-07-14 |
| 36 |
! 94-11-15 J.-J. MORCRETTE DIRECT/DIFFUSE ALBEDO |
| 37 |
! ------------------------------------------------------------------ |
| 38 |
|
| 39 |
! * ARGUMENTS: |
| 40 |
|
| 41 |
INTEGER knu |
| 42 |
! -OB |
| 43 |
DOUBLE PRECISION flag_aer |
| 44 |
DOUBLE PRECISION tauae(kdlon, kflev, 2) |
| 45 |
DOUBLE PRECISION pizae(kdlon, kflev, 2) |
| 46 |
DOUBLE PRECISION cgae(kdlon, kflev, 2) |
| 47 |
DOUBLE PRECISION paer(kdlon, kflev, 5) |
| 48 |
DOUBLE PRECISION palbd(kdlon, 2) |
| 49 |
DOUBLE PRECISION palbp(kdlon, 2) |
| 50 |
DOUBLE PRECISION pcg(kdlon, 2, kflev) |
| 51 |
DOUBLE PRECISION pcld(kdlon, kflev) |
| 52 |
DOUBLE PRECISION pcldsw(kdlon, kflev) |
| 53 |
DOUBLE PRECISION pclear(kdlon) |
| 54 |
DOUBLE PRECISION pdsig(kdlon, kflev) |
| 55 |
DOUBLE PRECISION pomega(kdlon, 2, kflev) |
| 56 |
DOUBLE PRECISION poz(kdlon, kflev) |
| 57 |
DOUBLE PRECISION prmu(kdlon) |
| 58 |
DOUBLE PRECISION psec(kdlon) |
| 59 |
DOUBLE PRECISION ptau(kdlon, 2, kflev) |
| 60 |
DOUBLE PRECISION pud(kdlon, 5, kflev+1) |
| 61 |
|
| 62 |
DOUBLE PRECISION pfd(kdlon, kflev+1) |
| 63 |
DOUBLE PRECISION pfu(kdlon, kflev+1) |
| 64 |
|
| 65 |
! * LOCAL VARIABLES: |
| 66 |
|
| 67 |
INTEGER iind(4) |
| 68 |
|
| 69 |
DOUBLE PRECISION zcgaz(kdlon, kflev) |
| 70 |
DOUBLE PRECISION zdiff(kdlon) |
| 71 |
DOUBLE PRECISION zdirf(kdlon) |
| 72 |
DOUBLE PRECISION zpizaz(kdlon, kflev) |
| 73 |
DOUBLE PRECISION zrayl(kdlon) |
| 74 |
DOUBLE PRECISION zray1(kdlon, kflev+1) |
| 75 |
DOUBLE PRECISION zray2(kdlon, kflev+1) |
| 76 |
DOUBLE PRECISION zrefz(kdlon, 2, kflev+1) |
| 77 |
DOUBLE PRECISION zrj(kdlon, 6, kflev+1) |
| 78 |
DOUBLE PRECISION zrj0(kdlon, 6, kflev+1) |
| 79 |
DOUBLE PRECISION zrk(kdlon, 6, kflev+1) |
| 80 |
DOUBLE PRECISION zrk0(kdlon, 6, kflev+1) |
| 81 |
DOUBLE PRECISION zrmue(kdlon, kflev+1) |
| 82 |
DOUBLE PRECISION zrmu0(kdlon, kflev+1) |
| 83 |
DOUBLE PRECISION zr(kdlon, 4) |
| 84 |
DOUBLE PRECISION ztauaz(kdlon, kflev) |
| 85 |
DOUBLE PRECISION ztra1(kdlon, kflev+1) |
| 86 |
DOUBLE PRECISION ztra2(kdlon, kflev+1) |
| 87 |
DOUBLE PRECISION zw(kdlon, 4) |
| 88 |
|
| 89 |
INTEGER jl, jk, k, jaj, ikm1, ikl |
| 90 |
|
| 91 |
! Prescribed Data: |
| 92 |
|
| 93 |
DOUBLE PRECISION rsun(2) |
| 94 |
SAVE rsun |
| 95 |
DOUBLE PRECISION rray(2, 6) |
| 96 |
SAVE rray |
| 97 |
DATA rsun(1)/0.441676/ |
| 98 |
DATA rsun(2)/0.558324/ |
| 99 |
DATA (rray(1,k), k=1, 6)/.428937E-01, .890743E+00, -.288555E+01, & |
| 100 |
.522744E+01, -.469173E+01, .161645E+01/ |
| 101 |
DATA (rray(2,k), k=1, 6)/.697200E-02, .173297E-01, -.850903E-01, & |
| 102 |
.248261E+00, -.302031E+00, .129662E+00/ |
| 103 |
! ------------------------------------------------------------------ |
| 104 |
|
| 105 |
! * 1. FIRST SPECTRAL INTERVAL (0.25-0.68 MICRON) |
| 106 |
! ----------------------- ------------------ |
| 107 |
|
| 108 |
|
| 109 |
|
| 110 |
! * 1.1 OPTICAL THICKNESS FOR RAYLEIGH SCATTERING |
| 111 |
! ----------------------------------------- |
| 112 |
|
| 113 |
|
| 114 |
DO jl = 1, kdlon |
| 115 |
zrayl(jl) = rray(knu, 1) + prmu(jl)*(rray(knu,2)+prmu(jl)*(rray(knu, & |
| 116 |
3)+prmu(jl)*(rray(knu,4)+prmu(jl)*(rray(knu,5)+prmu(jl)*rray(knu,6))))) |
| 117 |
END DO |
| 118 |
|
| 119 |
|
| 120 |
! ------------------------------------------------------------------ |
| 121 |
|
| 122 |
! * 2. CONTINUUM SCATTERING CALCULATIONS |
| 123 |
! --------------------------------- |
| 124 |
|
| 125 |
|
| 126 |
! * 2.1 CLEAR-SKY FRACTION OF THE COLUMN |
| 127 |
! -------------------------------- |
| 128 |
|
| 129 |
|
| 130 |
CALL swclr(knu, paer, flag_aer, tauae, pizae, cgae, palbp, pdsig, zrayl, & |
| 131 |
psec, zcgaz, zpizaz, zray1, zray2, zrefz, zrj0, zrk0, zrmu0, ztauaz, & |
| 132 |
ztra1, ztra2) |
| 133 |
|
| 134 |
|
| 135 |
! * 2.2 CLOUDY FRACTION OF THE COLUMN |
| 136 |
! ----------------------------- |
| 137 |
|
| 138 |
|
| 139 |
CALL swr(knu, palbd, pcg, pcld, pdsig, pomega, zrayl, psec, ptau, zcgaz, & |
| 140 |
zpizaz, zray1, zray2, zrefz, zrj, zrk, zrmue, ztauaz, ztra1, ztra2) |
| 141 |
|
| 142 |
|
| 143 |
! ------------------------------------------------------------------ |
| 144 |
|
| 145 |
! * 3. OZONE ABSORPTION |
| 146 |
! ---------------- |
| 147 |
|
| 148 |
|
| 149 |
iind(1) = 1 |
| 150 |
iind(2) = 3 |
| 151 |
iind(3) = 1 |
| 152 |
iind(4) = 3 |
| 153 |
|
| 154 |
|
| 155 |
! * 3.1 DOWNWARD FLUXES |
| 156 |
! --------------- |
| 157 |
|
| 158 |
|
| 159 |
jaj = 2 |
| 160 |
|
| 161 |
DO jl = 1, kdlon |
| 162 |
zw(jl, 1) = 0. |
| 163 |
zw(jl, 2) = 0. |
| 164 |
zw(jl, 3) = 0. |
| 165 |
zw(jl, 4) = 0. |
| 166 |
pfd(jl, kflev+1) = ((1.-pclear(jl))*zrj(jl,jaj,kflev+1)+pclear(jl)*zrj0( & |
| 167 |
jl,jaj,kflev+1))*rsun(knu) |
| 168 |
END DO |
| 169 |
DO jk = 1, kflev |
| 170 |
ikl = kflev + 1 - jk |
| 171 |
DO jl = 1, kdlon |
| 172 |
zw(jl, 1) = zw(jl, 1) + pud(jl, 1, ikl)/zrmue(jl, ikl) |
| 173 |
zw(jl, 2) = zw(jl, 2) + poz(jl, ikl)/zrmue(jl, ikl) |
| 174 |
zw(jl, 3) = zw(jl, 3) + pud(jl, 1, ikl)/zrmu0(jl, ikl) |
| 175 |
zw(jl, 4) = zw(jl, 4) + poz(jl, ikl)/zrmu0(jl, ikl) |
| 176 |
END DO |
| 177 |
|
| 178 |
CALL swtt1(knu, 4, iind, zw, zr) |
| 179 |
|
| 180 |
DO jl = 1, kdlon |
| 181 |
zdiff(jl) = zr(jl, 1)*zr(jl, 2)*zrj(jl, jaj, ikl) |
| 182 |
zdirf(jl) = zr(jl, 3)*zr(jl, 4)*zrj0(jl, jaj, ikl) |
| 183 |
pfd(jl, ikl) = ((1.-pclear(jl))*zdiff(jl)+pclear(jl)*zdirf(jl))* & |
| 184 |
rsun(knu) |
| 185 |
END DO |
| 186 |
END DO |
| 187 |
|
| 188 |
|
| 189 |
! * 3.2 UPWARD FLUXES |
| 190 |
! ------------- |
| 191 |
|
| 192 |
|
| 193 |
DO jl = 1, kdlon |
| 194 |
pfu(jl, 1) = ((1.-pclear(jl))*zdiff(jl)*palbd(jl,knu)+pclear(jl)*zdirf(jl & |
| 195 |
)*palbp(jl,knu))*rsun(knu) |
| 196 |
END DO |
| 197 |
|
| 198 |
DO jk = 2, kflev + 1 |
| 199 |
ikm1 = jk - 1 |
| 200 |
DO jl = 1, kdlon |
| 201 |
zw(jl, 1) = zw(jl, 1) + pud(jl, 1, ikm1)*1.66 |
| 202 |
zw(jl, 2) = zw(jl, 2) + poz(jl, ikm1)*1.66 |
| 203 |
zw(jl, 3) = zw(jl, 3) + pud(jl, 1, ikm1)*1.66 |
| 204 |
zw(jl, 4) = zw(jl, 4) + poz(jl, ikm1)*1.66 |
| 205 |
END DO |
| 206 |
|
| 207 |
CALL swtt1(knu, 4, iind, zw, zr) |
| 208 |
|
| 209 |
DO jl = 1, kdlon |
| 210 |
zdiff(jl) = zr(jl, 1)*zr(jl, 2)*zrk(jl, jaj, jk) |
| 211 |
zdirf(jl) = zr(jl, 3)*zr(jl, 4)*zrk0(jl, jaj, jk) |
| 212 |
pfu(jl, jk) = ((1.-pclear(jl))*zdiff(jl)+pclear(jl)*zdirf(jl))* & |
| 213 |
rsun(knu) |
| 214 |
END DO |
| 215 |
END DO |
| 216 |
|
| 217 |
! ------------------------------------------------------------------ |
| 218 |
|
| 219 |
RETURN |
| 220 |
END SUBROUTINE sw1s |
Parent Directory
| 
Revision Log