1 |
molod |
1.8 |
C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_lwrad.F,v 1.7 2004/07/13 21:26:32 molod Exp $ |
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molod |
1.1 |
C $Name: $ |
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molod |
1.2 |
#include "CPP_OPTIONS.h" |
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molod |
1.6 |
#include "PACKAGES_CONFIG.h" |
6 |
molod |
1.5 |
subroutine lwrio (nymd,nhms,bi,bj,istrip,npcs,low_level,mid_level, |
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. pz,plz,plze,dpres,pkht,pkz,tz,qz,oz, |
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. co2,cfc11,cfc12,cfc22,methane,n2o,emissivity, |
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molod |
1.1 |
. tgz,radlwg,st4,dst4, |
10 |
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. dtradlw,dlwdtg,dtradlwc,lwgclr, |
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. im,jm,lm,ptop, |
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. nlwcld,cldlw,clwmo,nlwlz,lwlz, |
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molod |
1.2 |
. lpnt,imstturb,qliqave,fccave,landtype) |
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molod |
1.1 |
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implicit none |
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molod |
1.2 |
#ifdef ALLOW_DIAGNOSTICS |
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molod |
1.8 |
#include "SIZE.h" |
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#include "diagnostics_SIZE.h" |
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molod |
1.6 |
#include "diagnostics.h" |
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molod |
1.2 |
#endif |
21 |
molod |
1.1 |
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c Input Variables |
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c --------------- |
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molod |
1.3 |
integer nymd,nhms,istrip,npcs,bi,bj |
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molod |
1.4 |
integer mid_level,low_level |
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molod |
1.1 |
integer im,jm,lm |
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real ptop |
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molod |
1.5 |
real pz(im,jm),plz(im,jm,lm),plze(im,jm,lm+1) |
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real dpres(im,jm,lm),pkht(im,jm,lm+1),pkz(im,jm,lm) |
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real tz(im,jm,lm),qz(im,jm,lm),oz(im,jm,lm) |
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real co2,cfc11,cfc12,cfc22,methane(lm),n2o(lm) |
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real emissivity(im,jm,10) |
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real tgz(im,jm),radlwg(im,jm),st4(im,jm),dst4(im,jm) |
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real dtradlw(im,jm,lm),dlwdtg (im,jm,lm) |
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real dtradlwc(im,jm,lm),lwgclr(im,jm) |
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integer nlwcld,nlwlz |
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real cldlw(im,jm,lm),clwmo(im,jm,lm),lwlz(im,jm,lm) |
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logical lpnt |
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integer imstturb |
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real qliqave(im,jm,lm),fccave(im,jm,lm) |
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integer landtype(im,jm) |
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molod |
1.1 |
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c Local Variables |
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c --------------- |
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integer i,j,l,n,nn |
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molod |
1.5 |
real cldtot (im,jm,lm) |
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real cldmxo (im,jm,lm) |
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real pl(istrip,lm) |
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real pk(istrip,lm) |
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real pke(istrip,lm) |
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real ple(istrip,lm+1) |
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real ADELPL(ISTRIP,lm) |
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real dtrad(istrip,lm),dtradc(istrip,lm) |
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real OZL(ISTRIP,lm),TZL(ISTRIP,lm) |
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real SHZL(ISTRIP,lm),CLRO(ISTRIP,lm) |
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real CLMO(ISTRIP,lm) |
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real flx(ISTRIP,lm+1),flxclr(ISTRIP,lm+1) |
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real cldlz(istrip,lm) |
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real dfdts(istrip,lm+1),dtdtg(istrip,lm) |
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real emiss(istrip,10) |
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real taual(istrip,lm,10) |
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real ssaal(istrip,lm,10) |
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real asyal(istrip,lm,10) |
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real cwc(istrip,lm,3) |
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real reff(istrip,lm,3) |
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real tauc(istrip,lm,3) |
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real SGMT4(ISTRIP),TSURF(ISTRIP),dsgmt4(ISTRIP) |
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integer lwi(istrip) |
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real getcon,secday,convrt,pcheck |
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logical high, trace, cldwater |
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data high /.true./ |
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data trace /.true./ |
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molod |
1.1 |
data cldwater /.false./ |
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C ********************************************************************** |
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C **** INITIALIZATION **** |
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C ********************************************************************** |
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SECDAY = GETCON('SDAY') |
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CONVRT = GETCON('GRAVITY') / ( 100.0 * GETCON('CP') ) |
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c Adjust cloud fractions and cloud liquid water due to moist turbulence |
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c --------------------------------------------------------------------- |
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if(imstturb.ne.0) then |
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do L =1,lm |
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do j =1,jm |
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do i =1,im |
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cldtot(i,j,L)=min(1.0,max(cldlw(i,j,L),fccave(i,j,L)/imstturb)) |
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cldmxo(i,j,L) = min( 1.0 , clwmo(i,j,L) ) |
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lwlz(i,j,L) = lwlz(i,j,L) + qliqave(i,j,L)/imstturb |
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enddo |
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enddo |
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enddo |
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else |
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do L =1,lm |
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do j =1,jm |
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do i =1,im |
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cldtot(i,j,L) = min( 1.0,cldlw(i,j,L) ) |
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cldmxo(i,j,L) = min( 1.0,clwmo(i,j,L) ) |
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enddo |
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enddo |
109 |
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enddo |
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endif |
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C*********************************************************************** |
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C **** LOOP OVER STRIPS **** |
114 |
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C ********************************************************************** |
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DO 1000 NN=1,NPCS |
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C ********************************************************************** |
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C **** VARIABLE INITIALIZATION **** |
120 |
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C ********************************************************************** |
121 |
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122 |
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CALL STRIP (OZ,OZL ,im*jm,ISTRIP,lm ,NN) |
123 |
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CALL STRIP (PLZE,ple ,im*jm,ISTRIP,lm+1 ,NN) |
124 |
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CALL STRIP (PLZ ,pl ,im*jm,ISTRIP,lm ,NN) |
125 |
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CALL STRIP (PKZ ,pk ,im*jm,ISTRIP,lm ,NN) |
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CALL STRIP (PKHT,pke ,im*jm,ISTRIP,lm ,NN) |
127 |
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CALL STRIP (TZ,TZL ,im*jm,ISTRIP,lm ,NN) |
128 |
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CALL STRIP (qz,SHZL ,im*jm,ISTRIP,lm ,NN) |
129 |
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CALL STRIP (cldtot,CLRO ,im*jm,ISTRIP,lm ,NN) |
130 |
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CALL STRIP (cldmxo,CLMO ,im*jm,ISTRIP,lm ,NN) |
131 |
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CALL STRIP (lwlz,cldlz ,im*jm,ISTRIP,lm ,NN) |
132 |
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CALL STRIP (tgz,tsurf ,im*jm,ISTRIP,1 ,NN) |
133 |
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134 |
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CALL STRIP (emissivity,emiss,im*jm,ISTRIP,10,NN) |
135 |
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136 |
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call stripitint (landtype,lwi,im*jm,im*jm,istrip,1,nn) |
137 |
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138 |
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DO I = 1,ISTRIP*lm |
139 |
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ADELPL(I,1) = convrt / ( ple(I,2)-ple(I,1) ) |
140 |
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ENDDO |
141 |
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142 |
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C Compute Clouds |
143 |
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C -------------- |
144 |
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IF(NLWCLD.NE.0)THEN |
145 |
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DO L = 1,lm |
146 |
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DO I = 1,ISTRIP |
147 |
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CLRO(I,L) = min( 1.0,clro(i,L) ) |
148 |
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CLMO(I,L) = min( 1.0,clmo(i,L) ) |
149 |
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ENDDO |
150 |
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ENDDO |
151 |
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ENDIF |
152 |
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153 |
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DO L = 1,lm |
154 |
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DO I = 1,ISTRIP |
155 |
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TZL(I,L) = TZL(I,L)*pk(I,L) |
156 |
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ENDDO |
157 |
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ENDDO |
158 |
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DO I = 1,ISTRIP |
159 |
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C To reduce longwave heating in lowest model layer |
160 |
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TZL(I,lm) = ( 2*tzl(i,lm)+tsurf(i) )/3.0 |
161 |
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ENDDO |
162 |
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163 |
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C Compute Optical Thicknesses |
164 |
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C --------------------------- |
165 |
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call opthk ( tzl,pl,ple,cldlz,clro,clmo,lwi,istrip,1,lm,tauc ) |
166 |
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167 |
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do n = 1,3 |
168 |
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do L = 1,lm |
169 |
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do i = 1,istrip |
170 |
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tauc(i,L,n) = tauc(i,L,n)*0.75 |
171 |
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enddo |
172 |
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enddo |
173 |
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enddo |
174 |
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175 |
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C Set the optical thickness, single scattering albedo and assymetry factor |
176 |
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C for aerosols equal to zero to omit the contribution of aerosols |
177 |
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c------------------------------------------------------------------------- |
178 |
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do n = 1,10 |
179 |
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do L = 1,lm |
180 |
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do i = 1,istrip |
181 |
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taual(i,L,n) = 0. |
182 |
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ssaal(i,L,n) = 0. |
183 |
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asyal(i,L,n) = 0. |
184 |
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enddo |
185 |
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enddo |
186 |
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enddo |
187 |
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188 |
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C Set cwc and reff to zero - when cldwater is .false. |
189 |
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c---------------------------------------------------- |
190 |
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do n = 1,3 |
191 |
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do L = 1,lm |
192 |
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do i = 1,istrip |
193 |
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cwc(i,L,n) = 0. |
194 |
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reff(i,L,n) = 0. |
195 |
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enddo |
196 |
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enddo |
197 |
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enddo |
198 |
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199 |
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C ********************************************************************** |
200 |
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C **** CALL M-D Chou RADIATION **** |
201 |
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C ********************************************************************** |
202 |
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203 |
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call irrad ( istrip,1,1,lm,ple,tzl,shzl,ozl,tsurf,co2, |
204 |
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. n2o,methane,cfc11,cfc12,cfc22,emiss, |
205 |
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. cldwater,cwc,tauc,reff,clro,mid_level,low_level, |
206 |
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. taual,ssaal,asyal, |
207 |
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. high,trace,flx,flxclr,dfdts,sgmt4 ) |
208 |
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209 |
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C ********************************************************************** |
210 |
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C **** HEATING RATES **** |
211 |
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C ********************************************************************** |
212 |
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213 |
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do L = 1,lm |
214 |
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do i = 1,istrip |
215 |
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dtrad(i,L) = ( flx(i,L)- flx(i,L+1))*adelpl(i,L) |
216 |
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dtdtg(i,L) = ( dfdts(i,L)- dfdts(i,L+1))*adelpl(i,L) |
217 |
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dtradc(i,L) = (flxclr(i,L)-flxclr(i,L+1))*adelpl(i,L) |
218 |
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enddo |
219 |
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enddo |
220 |
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221 |
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C ********************************************************************** |
222 |
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C **** NET UPWARD LONGWAVE FLUX (W/M**2) **** |
223 |
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C ********************************************************************** |
224 |
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225 |
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DO I = 1,ISTRIP |
226 |
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flx (i,1) = -flx (i,1) |
227 |
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flxclr(i,1) = -flxclr(i,1) |
228 |
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flx (i,lm+1) = -flx (i,lm+1) |
229 |
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flxclr(i,lm+1) = -flxclr(i,lm+1) |
230 |
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sgmt4(i) = - sgmt4(i) |
231 |
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dsgmt4(i) = - dfdts(i,lm+1) |
232 |
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ENDDO |
233 |
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234 |
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CALL PASTE ( flx (1,lm+1),RADLWG,ISTRIP,im*jm,1,NN ) |
235 |
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CALL PASTE ( flxclr(1,lm+1),LWGCLR,ISTRIP,im*jm,1,NN ) |
236 |
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237 |
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CALL PASTE ( sgmt4, st4,ISTRIP,im*jm,1,NN ) |
238 |
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CALL PASTE ( dsgmt4,dst4,ISTRIP,im*jm,1,NN ) |
239 |
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240 |
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C ********************************************************************** |
241 |
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C **** PASTE AND BUMP SOME DIAGNOSTICS **** |
242 |
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C ********************************************************************** |
243 |
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244 |
molod |
1.3 |
IF(IOLR.GT.0)CALL PSTBMP(flx(1,1),QDIAG(1,1,IOLR,bi,bj),ISTRIP, |
245 |
molod |
1.1 |
. im*jm, 1,NN) |
246 |
molod |
1.3 |
IF(IOLRCLR.GT.0)CALL PSTBMP(flxclr(1,1),QDIAG(1,1,IOLRCLR,bi,bj), |
247 |
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. ISTRIP,im*jm,1,NN) |
248 |
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IF(IOZLW.GT.0)CALL PSTBMP(OZL(1,1),QDIAG(1,1,IOZLW,bi,bj),ISTRIP, |
249 |
molod |
1.1 |
. im*jm,lm,NN) |
250 |
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251 |
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C ********************************************************************** |
252 |
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C **** TENDENCY UPDATES **** |
253 |
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C ********************************************************************** |
254 |
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255 |
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DO L = 1,lm |
256 |
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DO I = 1,ISTRIP |
257 |
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DTRAD (I,L) = ( ple(i,lm+1)-PTOP ) * DTRAD (I,L)/pk(I,L) |
258 |
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DTRADC(I,L) = ( ple(i,lm+1)-PTOP ) * DTRADC(I,L)/pk(I,L) |
259 |
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dtdtg(I,L) = ( ple(i,lm+1)-PTOP ) * dtdtg (I,L)/pk(I,L) |
260 |
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ENDDO |
261 |
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ENDDO |
262 |
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CALL PASTE ( DTRAD ,DTRADLW ,ISTRIP,im*jm,lm,NN ) |
263 |
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CALL PASTE ( DTRADC,DTRADLWC,ISTRIP,im*jm,lm,NN ) |
264 |
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CALL PASTE ( dtdtg ,dlwdtg ,ISTRIP,im*jm,lm,NN ) |
265 |
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266 |
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1000 CONTINUE |
267 |
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268 |
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C ********************************************************************** |
269 |
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C **** BUMP DIAGNOSTICS **** |
270 |
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C ********************************************************************** |
271 |
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272 |
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if(itgrlw.ne.0) then |
273 |
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do j = 1,jm |
274 |
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do i = 1,im |
275 |
molod |
1.3 |
qdiag(i,j,itgrlw,bi,bj) = qdiag(i,j,itgrlw,bi,bj) + tgz(i,j) |
276 |
molod |
1.1 |
enddo |
277 |
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enddo |
278 |
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endif |
279 |
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280 |
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if (itlw.ne.0) then |
281 |
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do L = 1,lm |
282 |
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do j = 1,jm |
283 |
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do i = 1,im |
284 |
molod |
1.3 |
qdiag(i,j,itlw+L-1,bi,bj) = qdiag(i,j,itlw+L-1,bi,bj) + |
285 |
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. tz(i,j,L)*pkz(i,j,L) |
286 |
molod |
1.1 |
enddo |
287 |
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enddo |
288 |
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enddo |
289 |
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endif |
290 |
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291 |
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if (ishrad.ne.0) then |
292 |
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do L = 1,lm |
293 |
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do j = 1,jm |
294 |
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do i = 1,im |
295 |
molod |
1.3 |
qdiag(i,j,ishrad+L-1,bi,bj) = qdiag(i,j,ishrad+L-1,bi,bj) + |
296 |
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. qz(i,j,L)*1000 |
297 |
molod |
1.1 |
enddo |
298 |
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enddo |
299 |
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enddo |
300 |
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endif |
301 |
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302 |
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303 |
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C ********************************************************************** |
304 |
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C **** Increment Diagnostics Counters and Zero-Out Cloud Info **** |
305 |
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C ********************************************************************** |
306 |
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307 |
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ntlw = ntlw + 1 |
308 |
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nshrad = nshrad + 1 |
309 |
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nozlw = nozlw + 1 |
310 |
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ntgrlw = ntgrlw + 1 |
311 |
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nolr = nolr + 1 |
312 |
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nolrclr = nolrclr + 1 |
313 |
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314 |
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nlwlz = 0 |
315 |
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nlwcld = 0 |
316 |
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imstturb = 0 |
317 |
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318 |
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do L = 1,lm |
319 |
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do j = 1,jm |
320 |
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do i = 1,im |
321 |
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fccave(i,j,L) = 0. |
322 |
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qliqave(i,j,L) = 0. |
323 |
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enddo |
324 |
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enddo |
325 |
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enddo |
326 |
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327 |
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return |
328 |
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end |
329 |
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c********************** November 26, 1997 ************************** |
330 |
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331 |
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subroutine irrad (m,n,ndim,np,pl,ta,wa,oa,ts,co2, |
332 |
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* n2o,ch4,cfc11,cfc12,cfc22,emiss, |
333 |
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* cldwater,cwc,taucl,reff,fcld,ict,icb, |
334 |
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* taual,ssaal,asyal, |
335 |
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* high,trace,flx,flc,dfdts,st4) |
336 |
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337 |
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c*********************************************************************** |
338 |
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c |
339 |
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c Version IR-5 (September, 1998) |
340 |
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c |
341 |
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c New features of this version are: |
342 |
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c (1) The effect of aerosol scattering on LW fluxes is included. |
343 |
|
|
c (2) Absorption and scattering of rain drops are included. |
344 |
|
|
c |
345 |
|
|
c*********************************************************************** |
346 |
|
|
c |
347 |
|
|
c Version IR-4 (October, 1997) |
348 |
|
|
c |
349 |
|
|
c New features of this version are: |
350 |
|
|
c (1) The surface is treated as non-black. The surface |
351 |
|
|
c emissivity, emiss, is an input parameter |
352 |
|
|
c (2) The effect of cloud scattering on LW fluxes is included |
353 |
|
|
c |
354 |
|
|
c********************************************************************* |
355 |
|
|
c |
356 |
|
|
c This routine computes ir fluxes due to water vapor, co2, o3, |
357 |
|
|
c trace gases (n2o, ch4, cfc11, cfc12, cfc22, co2-minor), |
358 |
|
|
c clouds, and aerosols. |
359 |
|
|
c |
360 |
|
|
c This is a vectorized code. It computes fluxes simultaneously for |
361 |
|
|
c (m x n) soundings, which is a subset of (m x ndim) soundings. |
362 |
|
|
c In a global climate model, m and ndim correspond to the numbers of |
363 |
|
|
c grid boxes in the zonal and meridional directions, respectively. |
364 |
|
|
c |
365 |
|
|
c Some detailed descriptions of the radiation routine are given in |
366 |
|
|
c Chou and Suarez (1994). |
367 |
|
|
c |
368 |
|
|
c Ice and liquid cloud particles are allowed to co-exist in any of the |
369 |
|
|
c np layers. |
370 |
|
|
c |
371 |
|
|
c If no information is available for the effective cloud particle size, |
372 |
|
|
c reff, default values of 10 micron for liquid water and 75 micron |
373 |
|
|
c for ice can be used. |
374 |
|
|
c |
375 |
|
|
c The maximum-random assumption is applied for cloud overlapping. |
376 |
|
|
c clouds are grouped into high, middle, and low clouds separated by the |
377 |
|
|
c level indices ict and icb. Within each of the three groups, clouds |
378 |
|
|
c are assumed maximally overlapped, and the cloud cover of a group is |
379 |
|
|
c the maximum cloud cover of all the layers in the group. clouds among |
380 |
|
|
c the three groups are assumed randomly overlapped. The indices ict and |
381 |
|
|
c icb correpond approximately to the 400 mb and 700 mb levels. |
382 |
|
|
c |
383 |
|
|
c Aerosols are allowed to be in any of the np layers. Aerosol optical |
384 |
|
|
c properties can be specified as functions of height and spectral band. |
385 |
|
|
c |
386 |
|
|
c There are options for computing fluxes: |
387 |
|
|
c |
388 |
|
|
c If cldwater=.true., taucl is computed from cwc and reff as a |
389 |
|
|
c function of height and spectral band. |
390 |
|
|
c If cldwater=.false., taucl must be given as input to the radiation |
391 |
|
|
c routine. It is independent of spectral band. |
392 |
|
|
c |
393 |
|
|
c If high = .true., transmission functions in the co2, o3, and the |
394 |
|
|
c three water vapor bands with strong absorption are computed using |
395 |
|
|
c table look-up. cooling rates are computed accurately from the |
396 |
|
|
c surface up to 0.01 mb. |
397 |
|
|
c If high = .false., transmission functions are computed using the |
398 |
|
|
c k-distribution method with linear pressure scaling for all spectral |
399 |
|
|
c bands and gases. cooling rates are not calculated accurately for |
400 |
|
|
c pressures less than 20 mb. the computation is faster with |
401 |
|
|
c high=.false. than with high=.true. |
402 |
|
|
|
403 |
|
|
c If trace = .true., absorption due to n2o, ch4, cfcs, and the |
404 |
|
|
c two minor co2 bands in the window region is included. |
405 |
|
|
c If trace = .false., absorption in minor bands is neglected. |
406 |
|
|
c |
407 |
|
|
c The IR spectrum is divided into nine bands: |
408 |
|
|
c |
409 |
|
|
c band wavenumber (/cm) absorber |
410 |
|
|
c |
411 |
|
|
c 1 0 - 340 h2o |
412 |
|
|
c 2 340 - 540 h2o |
413 |
|
|
c 3 540 - 800 h2o,cont,co2,n2o |
414 |
|
|
c 4 800 - 980 h2o,cont |
415 |
|
|
c co2,f11,f12,f22 |
416 |
|
|
c 5 980 - 1100 h2o,cont,o3 |
417 |
|
|
c co2,f11 |
418 |
|
|
c 6 1100 - 1215 h2o,cont |
419 |
|
|
c n2o,ch4,f12,f22 |
420 |
|
|
c 7 1215 - 1380 h2o |
421 |
|
|
c n2o,ch4 |
422 |
|
|
c 8 1380 - 1900 h2o |
423 |
|
|
c 9 1900 - 3000 h2o |
424 |
|
|
c |
425 |
|
|
c In addition, a narrow band in the 15 micrometer region is added to |
426 |
|
|
c compute flux reduction due to n2o |
427 |
|
|
c |
428 |
|
|
c 10 540 - 620 h2o,cont,co2,n2o |
429 |
|
|
c |
430 |
|
|
c Band 3 (540-800/cm) is further divided into 3 sub-bands : |
431 |
|
|
c |
432 |
|
|
c subband wavenumber (/cm) |
433 |
|
|
c |
434 |
|
|
c 1 540 - 620 |
435 |
|
|
c 2 620 - 720 |
436 |
|
|
c 3 720 - 800 |
437 |
|
|
c |
438 |
|
|
c---- Input parameters units size |
439 |
|
|
c |
440 |
|
|
c number of soundings in zonal direction (m) n/d 1 |
441 |
|
|
c number of soundings in meridional direction (n) n/d 1 |
442 |
|
|
c maximum number of soundings in |
443 |
|
|
c meridional direction (ndim>=n) n/d 1 |
444 |
|
|
c number of atmospheric layers (np) n/d 1 |
445 |
|
|
c level pressure (pl) mb m*ndim*(np+1) |
446 |
|
|
c layer temperature (ta) k m*ndim*np |
447 |
|
|
c layer specific humidity (wa) g/g m*ndim*np |
448 |
|
|
c layer ozone mixing ratio by mass (oa) g/g m*ndim*np |
449 |
|
|
c surface temperature (ts) k m*ndim |
450 |
|
|
c co2 mixing ratio by volumn (co2) pppv 1 |
451 |
|
|
c n2o mixing ratio by volumn (n2o) pppv np |
452 |
|
|
c ch4 mixing ratio by volumn (ch4) pppv np |
453 |
|
|
c cfc11 mixing ratio by volumn (cfc11) pppv 1 |
454 |
|
|
c cfc12 mixing ratio by volumn (cfc12) pppv 1 |
455 |
|
|
c cfc22 mixing ratio by volumn (cfc22) pppv 1 |
456 |
|
|
c surface emissivity (emiss) fraction m*ndim*10 |
457 |
|
|
c input option for cloud optical thickness n/d 1 |
458 |
|
|
c cldwater="true" if cwc is provided |
459 |
|
|
c cldwater="false" if taucl is provided |
460 |
|
|
c cloud water mixing ratio (cwc) gm/gm m*ndim*np*3 |
461 |
|
|
c index 1 for ice particles |
462 |
|
|
c index 2 for liquid drops |
463 |
|
|
c index 3 for rain drops |
464 |
|
|
c cloud optical thickness (taucl) n/d m*ndim*np*3 |
465 |
|
|
c index 1 for ice particles |
466 |
|
|
c index 2 for liquid drops |
467 |
|
|
c index 3 for rain drops |
468 |
|
|
c effective cloud-particle size (reff) micrometer m*ndim*np*3 |
469 |
|
|
c index 1 for ice particles |
470 |
|
|
c index 2 for liquid drops |
471 |
|
|
c index 3 for rain drops |
472 |
|
|
c cloud amount (fcld) fraction m*ndim*np |
473 |
|
|
c level index separating high and middle n/d 1 |
474 |
|
|
c clouds (ict) |
475 |
|
|
c level index separating middle and low n/d 1 |
476 |
|
|
c clouds (icb) |
477 |
|
|
c aerosol optical thickness (taual) n/d m*ndim*np*10 |
478 |
|
|
c aerosol single-scattering albedo (ssaal) n/d m*ndim*np*10 |
479 |
|
|
c aerosol asymmetry factor (asyal) n/d m*ndim*np*10 |
480 |
|
|
c high (see explanation above) 1 |
481 |
|
|
c trace (see explanation above) 1 |
482 |
|
|
c |
483 |
|
|
c Data used in table look-up for transmittance calculations: |
484 |
|
|
c |
485 |
|
|
c c1 , c2, c3: for co2 (band 3) |
486 |
|
|
c o1 , o2, o3: for o3 (band 5) |
487 |
|
|
c h11,h12,h13: for h2o (band 1) |
488 |
|
|
c h21,h22,h23: for h2o (band 2) |
489 |
|
|
c h81,h82,h83: for h2o (band 8) |
490 |
|
|
c |
491 |
|
|
c---- output parameters |
492 |
|
|
c |
493 |
|
|
c net downward flux, all-sky (flx) w/m**2 m*ndim*(np+1) |
494 |
|
|
c net downward flux, clear-sky (flc) w/m**2 m*ndim*(np+1) |
495 |
|
|
c sensitivity of net downward flux |
496 |
|
|
c to surface temperature (dfdts) w/m**2/k m*ndim*(np+1) |
497 |
|
|
c emission by the surface (st4) w/m**2 m*ndim |
498 |
|
|
c |
499 |
|
|
c Notes: |
500 |
|
|
c |
501 |
|
|
c (1) Water vapor continuum absorption is included in 540-1380 /cm. |
502 |
|
|
c (2) Scattering is parameterized for clouds and aerosols. |
503 |
|
|
c (3) Diffuse cloud and aerosol transmissions are computed |
504 |
|
|
c from exp(-1.66*tau). |
505 |
|
|
c (4) If there are no clouds, flx=flc. |
506 |
|
|
c (5) plevel(1) is the pressure at the top of the model atmosphere, |
507 |
|
|
c and plevel(np+1) is the surface pressure. |
508 |
|
|
c (6) Downward flux is positive and upward flux is negative. |
509 |
|
|
c (7) dfdts is negative because upward flux is defined as negative. |
510 |
|
|
c (8) For questions and coding errors, contact with Ming-Dah Chou, |
511 |
|
|
c Code 913, NASA/Goddard Space Flight Center, Greenbelt, MD 20771. |
512 |
|
|
c Phone: 301-286-4012, Fax: 301-286-1759, |
513 |
|
|
c e-mail: chou@climate.gsfc.nasa.gov |
514 |
|
|
c |
515 |
|
|
c-----parameters defining the size of the pre-computed tables for transmittance |
516 |
|
|
c calculations using table look-up. |
517 |
|
|
c |
518 |
|
|
c "nx" is the number of intervals in pressure |
519 |
|
|
c "no" is the number of intervals in o3 amount |
520 |
|
|
c "nc" is the number of intervals in co2 amount |
521 |
|
|
c "nh" is the number of intervals in h2o amount |
522 |
|
|
c "nt" is the number of copies to be made from the pre-computed |
523 |
|
|
c transmittance tables to reduce "memory-bank conflict" |
524 |
|
|
c in parallel machines and, hence, enhancing the speed of |
525 |
|
|
c computations using table look-up. |
526 |
|
|
c If such advantage does not exist, "nt" can be set to 1. |
527 |
|
|
c*************************************************************************** |
528 |
|
|
|
529 |
|
|
cfpp$ expand (h2oexps) |
530 |
|
|
cfpp$ expand (conexps) |
531 |
|
|
cfpp$ expand (co2exps) |
532 |
|
|
cfpp$ expand (n2oexps) |
533 |
|
|
cfpp$ expand (ch4exps) |
534 |
|
|
cfpp$ expand (comexps) |
535 |
|
|
cfpp$ expand (cfcexps) |
536 |
|
|
cfpp$ expand (b10exps) |
537 |
|
|
cfpp$ expand (tablup) |
538 |
|
|
cfpp$ expand (h2okdis) |
539 |
|
|
cfpp$ expand (co2kdis) |
540 |
|
|
cfpp$ expand (n2okdis) |
541 |
|
|
cfpp$ expand (ch4kdis) |
542 |
|
|
cfpp$ expand (comkdis) |
543 |
|
|
cfpp$ expand (cfckdis) |
544 |
|
|
cfpp$ expand (b10kdis) |
545 |
|
|
|
546 |
|
|
implicit none |
547 |
|
|
integer nx,no,nc,nh,nt |
548 |
|
|
integer i,j,k,ip,iw,it,ib,ik,iq,isb,k1,k2 |
549 |
|
|
parameter (nx=26,no=21,nc=24,nh=31,nt=7) |
550 |
|
|
|
551 |
|
|
c---- input parameters ------ |
552 |
|
|
|
553 |
|
|
integer m,n,ndim,np,ict,icb |
554 |
|
|
real pl(m,ndim,np+1),ta(m,ndim,np),wa(m,ndim,np),oa(m,ndim,np), |
555 |
|
|
* ts(m,ndim) |
556 |
|
|
real co2,n2o(np),ch4(np),cfc11,cfc12,cfc22,emiss(m,ndim,10) |
557 |
|
|
real cwc(m,ndim,np,3),taucl(m,ndim,np,3),reff(m,ndim,np,3), |
558 |
|
|
* fcld(m,ndim,np) |
559 |
|
|
real taual(m,ndim,np,10),ssaal(m,ndim,np,10),asyal(m,ndim,np,10) |
560 |
|
|
logical cldwater,high,trace |
561 |
|
|
|
562 |
|
|
c---- output parameters ------ |
563 |
|
|
|
564 |
|
|
real flx(m,ndim,np+1),flc(m,ndim,np+1),dfdts(m,ndim,np+1), |
565 |
|
|
* st4(m,ndim) |
566 |
|
|
|
567 |
|
|
c---- static data ----- |
568 |
|
|
|
569 |
|
|
real cb(5,10) |
570 |
|
|
real xkw(9),aw(9),bw(9),pm(9),fkw(6,9),gkw(6,3),xke(9) |
571 |
|
|
real aib(3,10),awb(4,10),aiw(4,10),aww(4,10),aig(4,10),awg(4,10) |
572 |
|
|
integer ne(9),mw(9) |
573 |
|
|
|
574 |
|
|
c---- temporary arrays ----- |
575 |
|
|
|
576 |
|
|
real pa(m,n,np),dt(m,n,np) |
577 |
|
|
real sh2o(m,n,np+1),swpre(m,n,np+1),swtem(m,n,np+1) |
578 |
|
|
real sco3(m,n,np+1),scopre(m,n,np+1),scotem(m,n,np+1) |
579 |
|
|
real dh2o(m,n,np),dcont(m,n,np),dco2(m,n,np),do3(m,n,np) |
580 |
|
|
real dn2o(m,n,np),dch4(m,n,np) |
581 |
|
|
real df11(m,n,np),df12(m,n,np),df22(m,n,np) |
582 |
|
|
real th2o(m,n,6),tcon(m,n,3),tco2(m,n,6,2) |
583 |
|
|
real tn2o(m,n,4),tch4(m,n,4),tcom(m,n,2) |
584 |
|
|
real tf11(m,n),tf12(m,n),tf22(m,n) |
585 |
|
|
real h2oexp(m,n,np,6),conexp(m,n,np,3),co2exp(m,n,np,6,2) |
586 |
|
|
real n2oexp(m,n,np,4),ch4exp(m,n,np,4),comexp(m,n,np,2) |
587 |
|
|
real f11exp(m,n,np), f12exp(m,n,np), f22exp(m,n,np) |
588 |
|
|
real clr(m,n,0:np+1),fclr(m,n) |
589 |
|
|
real blayer(m,n,0:np+1),dlayer(m,n,np+1),dbs(m,n) |
590 |
|
|
real clrlw(m,n),clrmd(m,n),clrhi(m,n) |
591 |
|
|
real cwp(m,n,np,3) |
592 |
|
|
real trant(m,n),tranal(m,n),transfc(m,n,np+1),trantcr(m,n,np+1) |
593 |
|
|
real flxu(m,n,np+1),flxd(m,n,np+1),flcu(m,n,np+1),flcd(m,n,np+1) |
594 |
|
|
real rflx(m,n,np+1),rflc(m,n,np+1) |
595 |
|
|
|
596 |
|
|
logical oznbnd,co2bnd,h2otbl,conbnd,n2obnd |
597 |
|
|
logical ch4bnd,combnd,f11bnd,f12bnd,f22bnd,b10bnd |
598 |
|
|
|
599 |
|
|
real c1 (nx,nc,nt),c2 (nx,nc,nt),c3 (nx,nc,nt) |
600 |
|
|
real o1 (nx,no,nt),o2 (nx,no,nt),o3 (nx,no,nt) |
601 |
|
|
real h11(nx,nh,nt),h12(nx,nh,nt),h13(nx,nh,nt) |
602 |
|
|
real h21(nx,nh,nt),h22(nx,nh,nt),h23(nx,nh,nt) |
603 |
|
|
real h81(nx,nh,nt),h82(nx,nh,nt),h83(nx,nh,nt) |
604 |
|
|
|
605 |
|
|
real dp,xx,p1,dwe,dpe,a1,b1,fk1,a2,b2,fk2 |
606 |
|
|
real w1,w2,w3,g1,g2,g3,ww,gg,ff,taux,reff1,reff2 |
607 |
|
|
|
608 |
|
|
c-----the following coefficients (equivalent to table 2 of |
609 |
|
|
c chou and suarez, 1995) are for computing spectrally |
610 |
|
|
c integrated planck fluxes using eq. (22) |
611 |
|
|
|
612 |
|
|
data cb/ |
613 |
|
|
1 -2.6844e-1,-8.8994e-2, 1.5676e-3,-2.9349e-6, 2.2233e-9, |
614 |
|
|
2 3.7315e+1,-7.4758e-1, 4.6151e-3,-6.3260e-6, 3.5647e-9, |
615 |
|
|
3 3.7187e+1,-3.9085e-1,-6.1072e-4, 1.4534e-5,-1.6863e-8, |
616 |
|
|
4 -4.1928e+1, 1.0027e+0,-8.5789e-3, 2.9199e-5,-2.5654e-8, |
617 |
|
|
5 -4.9163e+1, 9.8457e-1,-7.0968e-3, 2.0478e-5,-1.5514e-8, |
618 |
|
|
6 -4.7107e+1, 8.9130e-1,-5.9735e-3, 1.5596e-5,-9.5911e-9, |
619 |
|
|
7 -5.4041e+1, 9.5332e-1,-5.7784e-3, 1.2555e-5,-2.9377e-9, |
620 |
|
|
8 -6.9233e+0,-1.5878e-1, 3.9160e-3,-2.4496e-5, 4.9301e-8, |
621 |
|
|
9 1.1483e+2,-2.2376e+0, 1.6394e-2,-5.3672e-5, 6.6456e-8, |
622 |
|
|
* 1.9668e+1,-3.1161e-1, 1.2886e-3, 3.6835e-7,-1.6212e-9/ |
623 |
|
|
|
624 |
|
|
c-----xkw are the absorption coefficients for the first |
625 |
|
|
c k-distribution function due to water vapor line absorption |
626 |
|
|
c (tables 4 and 7). units are cm**2/g |
627 |
|
|
|
628 |
|
|
data xkw / 29.55 , 4.167e-1, 1.328e-2, 5.250e-4, |
629 |
|
|
* 5.25e-4, 9.369e-3, 4.719e-2, 1.320e-0, 5.250e-4/ |
630 |
|
|
|
631 |
|
|
c-----xke are the absorption coefficients for the first |
632 |
|
|
c k-distribution function due to water vapor continuum absorption |
633 |
|
|
c (table 6). units are cm**2/g |
634 |
|
|
|
635 |
|
|
data xke / 0.00, 0.00, 27.40, 15.8, |
636 |
|
|
* 9.40, 7.75, 0.0, 0.0, 0.0/ |
637 |
|
|
|
638 |
|
|
c-----mw are the ratios between neighboring absorption coefficients |
639 |
|
|
c for water vapor line absorption (tables 4 and 7). |
640 |
|
|
|
641 |
|
|
data mw /6,6,8,6,6,8,9,6,16/ |
642 |
|
|
|
643 |
|
|
c-----aw and bw (table 3) are the coefficients for temperature scaling |
644 |
|
|
c in eq. (25). |
645 |
|
|
|
646 |
|
|
data aw/ 0.0021, 0.0140, 0.0167, 0.0302, |
647 |
|
|
* 0.0307, 0.0195, 0.0152, 0.0008, 0.0096/ |
648 |
|
|
data bw/ -1.01e-5, 5.57e-5, 8.54e-5, 2.96e-4, |
649 |
|
|
* 2.86e-4, 1.108e-4, 7.608e-5, -3.52e-6, 1.64e-5/ |
650 |
|
|
|
651 |
|
|
data pm/ 1.0, 1.0, 1.0, 1.0, 1.0, 0.77, 0.5, 1.0, 1.0/ |
652 |
|
|
|
653 |
|
|
c-----fkw is the planck-weighted k-distribution function due to h2o |
654 |
|
|
c line absorption given in table 4 of Chou and Suarez (1995). |
655 |
|
|
c the k-distribution function for the third band, fkw(*,3), is not used |
656 |
|
|
|
657 |
|
|
data fkw / 0.2747,0.2717,0.2752,0.1177,0.0352,0.0255, |
658 |
|
|
2 0.1521,0.3974,0.1778,0.1826,0.0374,0.0527, |
659 |
|
|
3 6*1.00, |
660 |
|
|
4 0.4654,0.2991,0.1343,0.0646,0.0226,0.0140, |
661 |
|
|
5 0.5543,0.2723,0.1131,0.0443,0.0160,0.0000, |
662 |
|
|
6 0.5955,0.2693,0.0953,0.0335,0.0064,0.0000, |
663 |
|
|
7 0.1958,0.3469,0.3147,0.1013,0.0365,0.0048, |
664 |
|
|
8 0.0740,0.1636,0.4174,0.1783,0.1101,0.0566, |
665 |
|
|
9 0.1437,0.2197,0.3185,0.2351,0.0647,0.0183/ |
666 |
|
|
|
667 |
|
|
c-----gkw is the planck-weighted k-distribution function due to h2o |
668 |
|
|
c line absorption in the 3 subbands (800-720,620-720,540-620 /cm) |
669 |
|
|
c of band 3 given in table 7. Note that the order of the sub-bands |
670 |
|
|
c is reversed. |
671 |
|
|
|
672 |
|
|
data gkw/ 0.1782,0.0593,0.0215,0.0068,0.0022,0.0000, |
673 |
|
|
2 0.0923,0.1675,0.0923,0.0187,0.0178,0.0000, |
674 |
|
|
3 0.0000,0.1083,0.1581,0.0455,0.0274,0.0041/ |
675 |
|
|
|
676 |
|
|
c-----ne is the number of terms used in each band to compute water vapor |
677 |
|
|
c continuum transmittance (table 6). |
678 |
|
|
|
679 |
|
|
data ne /0,0,3,1,1,1,0,0,0/ |
680 |
|
|
c |
681 |
|
|
c-----coefficients for computing the extinction coefficient |
682 |
|
|
c for cloud ice particles |
683 |
|
|
c polynomial fit: y=a1+a2/x**a3; x is in m**2/gm |
684 |
|
|
c |
685 |
|
|
data aib / -0.44171, 0.62951, 0.06465, |
686 |
|
|
2 -0.13727, 0.61291, 0.28962, |
687 |
|
|
3 -0.01878, 1.67680, 0.79080, |
688 |
|
|
4 -0.01896, 1.06510, 0.69493, |
689 |
|
|
5 -0.04788, 0.88178, 0.54492, |
690 |
|
|
6 -0.02265, 1.57390, 0.76161, |
691 |
|
|
7 -0.01038, 2.15640, 0.89045, |
692 |
|
|
8 -0.00450, 2.51370, 0.95989, |
693 |
|
|
9 -0.00044, 3.15050, 1.03750, |
694 |
|
|
* -0.02956, 1.44680, 0.71283/ |
695 |
|
|
c |
696 |
|
|
c-----coefficients for computing the extinction coefficient |
697 |
|
|
c for cloud liquid drops |
698 |
|
|
c polynomial fit: y=a1+a2*x+a3*x**2+a4*x**3; x is in m**2/gm |
699 |
|
|
c |
700 |
|
|
data awb / 0.08641, 0.01769, -1.5572e-3, 3.4896e-5, |
701 |
|
|
2 0.22027, 0.00997, -1.8719e-3, 5.3112e-5, |
702 |
|
|
3 0.39252, -0.02817, 7.2931e-4, -3.8151e-6, |
703 |
|
|
4 0.39975, -0.03426, 1.2884e-3, -1.7930e-5, |
704 |
|
|
5 0.34021, -0.02805, 1.0654e-3, -1.5443e-5, |
705 |
|
|
6 0.15587, 0.00371, -7.7705e-4, 2.0547e-5, |
706 |
|
|
7 0.05518, 0.04544, -4.2067e-3, 1.0184e-4, |
707 |
|
|
8 0.12724, 0.04751, -5.2037e-3, 1.3711e-4, |
708 |
|
|
9 0.30390, 0.01656, -3.5271e-3, 1.0828e-4, |
709 |
|
|
* 0.63617, -0.06287, 2.2350e-3, -2.3177e-5/ |
710 |
|
|
c |
711 |
|
|
c-----coefficients for computing the single-scattering albedo |
712 |
|
|
c for cloud ice particles |
713 |
|
|
c polynomial fit: y=a1+a2*x+a3*x**2+a4*x**3; x is in m**2/gm |
714 |
|
|
c |
715 |
|
|
data aiw/ 0.17201, 1.2229e-2, -1.4837e-4, 5.8020e-7, |
716 |
|
|
2 0.81470, -2.7293e-3, 9.7816e-8, 5.7650e-8, |
717 |
|
|
3 0.54859, -4.8273e-4, 5.4353e-6, -1.5679e-8, |
718 |
|
|
4 0.39218, 4.1717e-3, - 4.8869e-5, 1.9144e-7, |
719 |
|
|
5 0.71773, -3.3640e-3, 1.9713e-5, -3.3189e-8, |
720 |
|
|
6 0.77345, -5.5228e-3, 4.8379e-5, -1.5151e-7, |
721 |
|
|
7 0.74975, -5.6604e-3, 5.6475e-5, -1.9664e-7, |
722 |
|
|
8 0.69011, -4.5348e-3, 4.9322e-5, -1.8255e-7, |
723 |
|
|
9 0.83963, -6.7253e-3, 6.1900e-5, -2.0862e-7, |
724 |
|
|
* 0.64860, -2.8692e-3, 2.7656e-5, -8.9680e-8/ |
725 |
|
|
c |
726 |
|
|
c-----coefficients for computing the single-scattering albedo |
727 |
|
|
c for cloud liquid drops |
728 |
|
|
c polynomial fit: y=a1+a2*x+a3*x**2+a4*x**3; x is in m**2/gm |
729 |
|
|
c |
730 |
|
|
data aww/ -7.8566e-2, 8.0875e-2, -4.3403e-3, 8.1341e-5, |
731 |
|
|
2 -1.3384e-2, 9.3134e-2, -6.0491e-3, 1.3059e-4, |
732 |
|
|
3 3.7096e-2, 7.3211e-2, -4.4211e-3, 9.2448e-5, |
733 |
|
|
4 -3.7600e-3, 9.3344e-2, -5.6561e-3, 1.1387e-4, |
734 |
|
|
5 0.40212, 7.8083e-2, -5.9583e-3, 1.2883e-4, |
735 |
|
|
6 0.57928, 5.9094e-2, -5.4425e-3, 1.2725e-4, |
736 |
|
|
7 0.68974, 4.2334e-2, -4.9469e-3, 1.2863e-4, |
737 |
|
|
8 0.80122, 9.4578e-3, -2.8508e-3, 9.0078e-5, |
738 |
|
|
9 1.02340, -2.6204e-2, 4.2552e-4, 3.2160e-6, |
739 |
|
|
* 0.05092, 7.5409e-2, -4.7305e-3, 1.0121e-4/ |
740 |
|
|
c |
741 |
|
|
c-----coefficients for computing the asymmetry factor for cloud ice particles |
742 |
|
|
c polynomial fit: y=a1+a2*x+a3*x**2+a4*x**3; x is in m**2/gm |
743 |
|
|
c |
744 |
|
|
data aig / 0.57867, 1.0135e-2, -1.1142e-4, 4.1537e-7, |
745 |
|
|
2 0.72259, 3.1149e-3, -1.9927e-5, 5.6024e-8, |
746 |
|
|
3 0.76109, 4.5449e-3, -4.6199e-5, 1.6446e-7, |
747 |
|
|
4 0.86934, 2.7474e-3, -3.1301e-5, 1.1959e-7, |
748 |
|
|
5 0.89103, 1.8513e-3, -1.6551e-5, 5.5193e-8, |
749 |
|
|
6 0.86325, 2.1408e-3, -1.6846e-5, 4.9473e-8, |
750 |
|
|
7 0.85064, 2.5028e-3, -2.0812e-5, 6.3427e-8, |
751 |
|
|
8 0.86945, 2.4615e-3, -2.3882e-5, 8.2431e-8, |
752 |
|
|
9 0.80122, 3.1906e-3, -2.4856e-5, 7.2411e-8, |
753 |
|
|
* 0.73290, 4.8034e-3, -4.4425e-5, 1.4839e-7/ |
754 |
|
|
c |
755 |
|
|
c-----coefficients for computing the asymmetry factor for cloud liquid drops |
756 |
|
|
c polynomial fit: y=a1+a2*x+a3*x**2+a4*x**3; x is in m**2/gm |
757 |
|
|
c |
758 |
|
|
data awg / -0.51930, 0.20290, -1.1747e-2, 2.3868e-4, |
759 |
|
|
2 -0.22151, 0.19708, -1.2462e-2, 2.6646e-4, |
760 |
|
|
3 0.14157, 0.14705, -9.5802e-3, 2.0819e-4, |
761 |
|
|
4 0.41590, 0.10482, -6.9118e-3, 1.5115e-4, |
762 |
|
|
5 0.55338, 7.7016e-2, -5.2218e-3, 1.1587e-4, |
763 |
|
|
6 0.61384, 6.4402e-2, -4.6241e-3, 1.0746e-4, |
764 |
|
|
7 0.67891, 4.8698e-2, -3.7021e-3, 9.1966e-5, |
765 |
|
|
8 0.78169, 2.0803e-2, -1.4749e-3, 3.9362e-5, |
766 |
|
|
9 0.93218, -3.3425e-2, 2.9632e-3, -6.9362e-5, |
767 |
|
|
* 0.01649, 0.16561, -1.0723e-2, 2.3220e-4/ |
768 |
|
|
c |
769 |
|
|
c-----include tables used in the table look-up for co2 (band 3), |
770 |
|
|
c o3 (band 5), and h2o (bands 1, 2, and 7) transmission functions. |
771 |
|
|
|
772 |
|
|
logical first |
773 |
|
|
data first /.true./ |
774 |
|
|
|
775 |
molod |
1.7 |
#include "h2o-tran3.h" |
776 |
|
|
#include "co2-tran3.h" |
777 |
|
|
#include "o3-tran3.h" |
778 |
molod |
1.1 |
|
779 |
|
|
save c1,c2,c3,o1,o2,o3 |
780 |
|
|
save h11,h12,h13,h21,h22,h23,h81,h82,h83 |
781 |
|
|
|
782 |
|
|
if (first) then |
783 |
|
|
|
784 |
|
|
c-----tables co2 and h2o are only used with 'high' option |
785 |
|
|
|
786 |
|
|
if (high) then |
787 |
|
|
|
788 |
|
|
do iw=1,nh |
789 |
|
|
do ip=1,nx |
790 |
|
|
h11(ip,iw,1)=1.0-h11(ip,iw,1) |
791 |
|
|
h21(ip,iw,1)=1.0-h21(ip,iw,1) |
792 |
|
|
h81(ip,iw,1)=1.0-h81(ip,iw,1) |
793 |
|
|
enddo |
794 |
|
|
enddo |
795 |
|
|
|
796 |
|
|
do iw=1,nc |
797 |
|
|
do ip=1,nx |
798 |
|
|
c1(ip,iw,1)=1.0-c1(ip,iw,1) |
799 |
|
|
enddo |
800 |
|
|
enddo |
801 |
|
|
|
802 |
|
|
c-----copy tables to enhance the speed of co2 (band 3), o3 (band 5), |
803 |
|
|
c and h2o (bands 1, 2, and 8 only) transmission calculations |
804 |
|
|
c using table look-up. |
805 |
|
|
c-----tables are replicated to avoid memory bank conflicts |
806 |
|
|
|
807 |
|
|
do it=2,nt |
808 |
|
|
do iw=1,nc |
809 |
|
|
do ip=1,nx |
810 |
|
|
c1 (ip,iw,it)= c1(ip,iw,1) |
811 |
|
|
c2 (ip,iw,it)= c2(ip,iw,1) |
812 |
|
|
c3 (ip,iw,it)= c3(ip,iw,1) |
813 |
|
|
enddo |
814 |
|
|
enddo |
815 |
|
|
do iw=1,nh |
816 |
|
|
do ip=1,nx |
817 |
|
|
h11(ip,iw,it)=h11(ip,iw,1) |
818 |
|
|
h12(ip,iw,it)=h12(ip,iw,1) |
819 |
|
|
h13(ip,iw,it)=h13(ip,iw,1) |
820 |
|
|
h21(ip,iw,it)=h21(ip,iw,1) |
821 |
|
|
h22(ip,iw,it)=h22(ip,iw,1) |
822 |
|
|
h23(ip,iw,it)=h23(ip,iw,1) |
823 |
|
|
h81(ip,iw,it)=h81(ip,iw,1) |
824 |
|
|
h82(ip,iw,it)=h82(ip,iw,1) |
825 |
|
|
h83(ip,iw,it)=h83(ip,iw,1) |
826 |
|
|
enddo |
827 |
|
|
enddo |
828 |
|
|
enddo |
829 |
|
|
|
830 |
|
|
endif |
831 |
|
|
|
832 |
|
|
c-----always use table look-up for ozone transmittance |
833 |
|
|
|
834 |
|
|
do iw=1,no |
835 |
|
|
do ip=1,nx |
836 |
|
|
o1(ip,iw,1)=1.0-o1(ip,iw,1) |
837 |
|
|
enddo |
838 |
|
|
enddo |
839 |
|
|
|
840 |
|
|
do it=2,nt |
841 |
|
|
do iw=1,no |
842 |
|
|
do ip=1,nx |
843 |
|
|
o1 (ip,iw,it)= o1(ip,iw,1) |
844 |
|
|
o2 (ip,iw,it)= o2(ip,iw,1) |
845 |
|
|
o3 (ip,iw,it)= o3(ip,iw,1) |
846 |
|
|
enddo |
847 |
|
|
enddo |
848 |
|
|
enddo |
849 |
|
|
|
850 |
|
|
first=.false. |
851 |
|
|
|
852 |
|
|
endif |
853 |
|
|
|
854 |
|
|
c-----set the pressure at the top of the model atmosphere |
855 |
|
|
c to 1.0e-4 if it is zero |
856 |
|
|
|
857 |
|
|
do j=1,n |
858 |
|
|
do i=1,m |
859 |
|
|
if (pl(i,j,1) .eq. 0.0) then |
860 |
|
|
pl(i,j,1)=1.0e-4 |
861 |
|
|
endif |
862 |
|
|
enddo |
863 |
|
|
enddo |
864 |
|
|
|
865 |
|
|
c-----compute layer pressure (pa) and layer temperature minus 250K (dt) |
866 |
|
|
|
867 |
|
|
do k=1,np |
868 |
|
|
do j=1,n |
869 |
|
|
do i=1,m |
870 |
|
|
pa(i,j,k)=0.5*(pl(i,j,k)+pl(i,j,k+1)) |
871 |
|
|
dt(i,j,k)=ta(i,j,k)-250.0 |
872 |
|
|
enddo |
873 |
|
|
enddo |
874 |
|
|
enddo |
875 |
|
|
|
876 |
|
|
c-----compute layer absorber amount |
877 |
|
|
|
878 |
|
|
c dh2o : water vapor amount (g/cm**2) |
879 |
|
|
c dcont: scaled water vapor amount for continuum absorption |
880 |
|
|
c (g/cm**2) |
881 |
|
|
c dco2 : co2 amount (cm-atm)stp |
882 |
|
|
c do3 : o3 amount (cm-atm)stp |
883 |
|
|
c dn2o : n2o amount (cm-atm)stp |
884 |
|
|
c dch4 : ch4 amount (cm-atm)stp |
885 |
|
|
c df11 : cfc11 amount (cm-atm)stp |
886 |
|
|
c df12 : cfc12 amount (cm-atm)stp |
887 |
|
|
c df22 : cfc22 amount (cm-atm)stp |
888 |
|
|
c the factor 1.02 is equal to 1000/980 |
889 |
|
|
c factors 789 and 476 are for unit conversion |
890 |
|
|
c the factor 0.001618 is equal to 1.02/(.622*1013.25) |
891 |
|
|
c the factor 6.081 is equal to 1800/296 |
892 |
|
|
|
893 |
|
|
|
894 |
|
|
do k=1,np |
895 |
|
|
do j=1,n |
896 |
|
|
do i=1,m |
897 |
|
|
|
898 |
|
|
dp = pl(i,j,k+1)-pl(i,j,k) |
899 |
|
|
dh2o (i,j,k) = 1.02*wa(i,j,k)*dp+1.e-10 |
900 |
|
|
do3 (i,j,k) = 476.*oa(i,j,k)*dp+1.e-10 |
901 |
|
|
dco2 (i,j,k) = 789.*co2*dp+1.e-10 |
902 |
|
|
dch4 (i,j,k) = 789.*ch4(k)*dp+1.e-10 |
903 |
|
|
dn2o (i,j,k) = 789.*n2o(k)*dp+1.e-10 |
904 |
|
|
df11 (i,j,k) = 789.*cfc11*dp+1.e-10 |
905 |
|
|
df12 (i,j,k) = 789.*cfc12*dp+1.e-10 |
906 |
|
|
df22 (i,j,k) = 789.*cfc22*dp+1.e-10 |
907 |
|
|
|
908 |
|
|
c-----compute scaled water vapor amount for h2o continuum absorption |
909 |
|
|
c following eq. (43). |
910 |
|
|
|
911 |
|
|
xx=pa(i,j,k)*0.001618*wa(i,j,k)*wa(i,j,k)*dp |
912 |
|
|
dcont(i,j,k) = xx*exp(1800./ta(i,j,k)-6.081)+1.e-10 |
913 |
|
|
|
914 |
|
|
enddo |
915 |
|
|
enddo |
916 |
|
|
enddo |
917 |
|
|
|
918 |
|
|
c-----compute column-integrated h2o amoumt, h2o-weighted pressure |
919 |
|
|
c and temperature. it follows eqs. (37) and (38). |
920 |
|
|
|
921 |
|
|
if (high) then |
922 |
|
|
call column(m,n,np,pa,dt,dh2o,sh2o,swpre,swtem) |
923 |
|
|
endif |
924 |
|
|
|
925 |
|
|
c-----compute layer cloud water amount (gm/m**2) |
926 |
|
|
c index is 1 for ice, 2 for waterdrops and 3 for raindrops. |
927 |
|
|
c Rain optical thickness is 0.00307 /(gm/m**2). |
928 |
|
|
c It is for a specific drop size distribution provided by Q. Fu. |
929 |
|
|
|
930 |
|
|
if (cldwater) then |
931 |
|
|
do k=1,np |
932 |
|
|
do j=1,n |
933 |
|
|
do i=1,m |
934 |
|
|
dp =pl(i,j,k+1)-pl(i,j,k) |
935 |
|
|
cwp(i,j,k,1)=1.02*10000.0*cwc(i,j,k,1)*dp |
936 |
|
|
cwp(i,j,k,2)=1.02*10000.0*cwc(i,j,k,2)*dp |
937 |
|
|
cwp(i,j,k,3)=1.02*10000.0*cwc(i,j,k,3)*dp |
938 |
|
|
taucl(i,j,k,3)=0.00307*cwp(i,j,k,3) |
939 |
|
|
enddo |
940 |
|
|
enddo |
941 |
|
|
enddo |
942 |
|
|
endif |
943 |
|
|
|
944 |
|
|
c-----the surface (np+1) is treated as a layer filled with black clouds. |
945 |
|
|
c clr is the equivalent clear fraction of a layer |
946 |
|
|
c transfc is the transmttance between the surface and a pressure level. |
947 |
|
|
c trantcr is the clear-sky transmttance between the surface and a |
948 |
|
|
c pressure level. |
949 |
|
|
|
950 |
|
|
do j=1,n |
951 |
|
|
do i=1,m |
952 |
|
|
clr(i,j,0) = 1.0 |
953 |
|
|
clr(i,j,np+1) = 0.0 |
954 |
|
|
st4(i,j) = 0.0 |
955 |
|
|
transfc(i,j,np+1)=1.0 |
956 |
|
|
trantcr(i,j,np+1)=1.0 |
957 |
|
|
enddo |
958 |
|
|
enddo |
959 |
|
|
|
960 |
|
|
c-----initialize fluxes |
961 |
|
|
|
962 |
|
|
do k=1,np+1 |
963 |
|
|
do j=1,n |
964 |
|
|
do i=1,m |
965 |
|
|
flx(i,j,k) = 0.0 |
966 |
|
|
flc(i,j,k) = 0.0 |
967 |
|
|
dfdts(i,j,k)= 0.0 |
968 |
|
|
rflx(i,j,k) = 0.0 |
969 |
|
|
rflc(i,j,k) = 0.0 |
970 |
|
|
enddo |
971 |
|
|
enddo |
972 |
|
|
enddo |
973 |
|
|
|
974 |
|
|
c-----integration over spectral bands |
975 |
|
|
|
976 |
|
|
do 1000 ib=1,10 |
977 |
|
|
|
978 |
|
|
c-----if h2otbl, compute h2o (line) transmittance using table look-up. |
979 |
|
|
c if conbnd, compute h2o (continuum) transmittance in bands 3-6. |
980 |
|
|
c if co2bnd, compute co2 transmittance in band 3. |
981 |
|
|
c if oznbnd, compute o3 transmittance in band 5. |
982 |
|
|
c if n2obnd, compute n2o transmittance in bands 6 and 7. |
983 |
|
|
c if ch4bnd, compute ch4 transmittance in bands 6 and 7. |
984 |
|
|
c if combnd, compute co2-minor transmittance in bands 4 and 5. |
985 |
|
|
c if f11bnd, compute cfc11 transmittance in bands 4 and 5. |
986 |
|
|
c if f12bnd, compute cfc12 transmittance in bands 4 and 6. |
987 |
|
|
c if f22bnd, compute cfc22 transmittance in bands 4 and 6. |
988 |
|
|
c if b10bnd, compute flux reduction due to n2o in band 10. |
989 |
|
|
|
990 |
|
|
h2otbl=high.and.(ib.eq.1.or.ib.eq.2.or.ib.eq.8) |
991 |
|
|
conbnd=ib.ge.3.and.ib.le.6 |
992 |
|
|
co2bnd=ib.eq.3 |
993 |
|
|
oznbnd=ib.eq.5 |
994 |
|
|
n2obnd=ib.eq.6.or.ib.eq.7 |
995 |
|
|
ch4bnd=ib.eq.6.or.ib.eq.7 |
996 |
|
|
combnd=ib.eq.4.or.ib.eq.5 |
997 |
|
|
f11bnd=ib.eq.4.or.ib.eq.5 |
998 |
|
|
f12bnd=ib.eq.4.or.ib.eq.6 |
999 |
|
|
f22bnd=ib.eq.4.or.ib.eq.6 |
1000 |
|
|
b10bnd=ib.eq.10 |
1001 |
|
|
|
1002 |
|
|
c-----blayer is the spectrally integrated planck flux of the mean layer |
1003 |
|
|
c temperature derived from eq. (22) |
1004 |
|
|
c the fitting for the planck flux is valid in the range 160-345 K. |
1005 |
|
|
|
1006 |
|
|
do k=1,np |
1007 |
|
|
do j=1,n |
1008 |
|
|
do i=1,m |
1009 |
|
|
blayer(i,j,k)=ta(i,j,k)*(ta(i,j,k)*(ta(i,j,k) |
1010 |
|
|
* *(ta(i,j,k)*cb(5,ib)+cb(4,ib))+cb(3,ib)) |
1011 |
|
|
* +cb(2,ib))+cb(1,ib) |
1012 |
|
|
enddo |
1013 |
|
|
enddo |
1014 |
|
|
enddo |
1015 |
|
|
|
1016 |
|
|
c-----the earth's surface, with an index "np+1", is treated as a layer |
1017 |
|
|
|
1018 |
|
|
do j=1,n |
1019 |
|
|
do i=1,m |
1020 |
|
|
blayer(i,j,0) = 0.0 |
1021 |
|
|
blayer(i,j,np+1)= ( ts(i,j)*(ts(i,j)*(ts(i,j) |
1022 |
|
|
* *(ts(i,j)*cb(5,ib)+cb(4,ib))+cb(3,ib)) |
1023 |
|
|
* +cb(2,ib))+cb(1,ib) )*emiss(i,j,ib) |
1024 |
|
|
|
1025 |
|
|
c-----dbs is the derivative of the surface emission with respect to |
1026 |
|
|
c surface temperature (eq. 59). |
1027 |
|
|
|
1028 |
|
|
dbs(i,j)=(ts(i,j)*(ts(i,j)*(ts(i,j)*4.*cb(5,ib) |
1029 |
|
|
* +3.*cb(4,ib))+2.*cb(3,ib))+cb(2,ib))*emiss(i,j,ib) |
1030 |
|
|
|
1031 |
|
|
enddo |
1032 |
|
|
enddo |
1033 |
|
|
|
1034 |
|
|
do k=1,np+1 |
1035 |
|
|
do j=1,n |
1036 |
|
|
do i=1,m |
1037 |
|
|
dlayer(i,j,k)=blayer(i,j,k-1)-blayer(i,j,k) |
1038 |
|
|
enddo |
1039 |
|
|
enddo |
1040 |
|
|
enddo |
1041 |
|
|
|
1042 |
|
|
c-----compute column-integrated absorber amoumt, absorber-weighted |
1043 |
|
|
c pressure and temperature for co2 (band 3) and o3 (band 5). |
1044 |
|
|
c it follows eqs. (37) and (38). |
1045 |
|
|
|
1046 |
|
|
c-----this is in the band loop to save storage |
1047 |
|
|
|
1048 |
|
|
if (high .and. co2bnd) then |
1049 |
|
|
call column(m,n,np,pa,dt,dco2,sco3,scopre,scotem) |
1050 |
|
|
endif |
1051 |
|
|
|
1052 |
|
|
if (oznbnd) then |
1053 |
|
|
call column(m,n,np,pa,dt,do3,sco3,scopre,scotem) |
1054 |
|
|
endif |
1055 |
|
|
|
1056 |
|
|
c-----compute cloud optical thickness |
1057 |
|
|
|
1058 |
|
|
if (cldwater) then |
1059 |
|
|
do k= 1, np |
1060 |
|
|
do j= 1, n |
1061 |
|
|
do i= 1, m |
1062 |
|
|
taucl(i,j,k,1)=cwp(i,j,k,1)*(aib(1,ib)+aib(2,ib)/ |
1063 |
|
|
* reff(i,j,k,1)**aib(3,ib)) |
1064 |
|
|
taucl(i,j,k,2)=cwp(i,j,k,2)*(awb(1,ib)+(awb(2,ib)+(awb(3,ib) |
1065 |
|
|
* +awb(4,ib)*reff(i,j,k,2))*reff(i,j,k,2))*reff(i,j,k,2)) |
1066 |
|
|
enddo |
1067 |
|
|
enddo |
1068 |
|
|
enddo |
1069 |
|
|
endif |
1070 |
|
|
|
1071 |
|
|
c-----compute cloud single-scattering albedo and asymmetry factor for |
1072 |
|
|
c a mixture of ice particles, liquid drops, and rain drops |
1073 |
|
|
c single-scattering albedo and asymmetry factor of rain are set |
1074 |
|
|
c to 0.54 and 0.95, respectively. |
1075 |
|
|
|
1076 |
|
|
do k= 1, np |
1077 |
|
|
do j= 1, n |
1078 |
|
|
do i= 1, m |
1079 |
|
|
|
1080 |
|
|
clr(i,j,k) = 1.0 |
1081 |
|
|
taux=taucl(i,j,k,1)+taucl(i,j,k,2)+taucl(i,j,k,3) |
1082 |
|
|
|
1083 |
|
|
if (taux.gt.0.02 .and. fcld(i,j,k).gt.0.01) then |
1084 |
|
|
|
1085 |
|
|
reff1=min(reff(i,j,k,1),130.) |
1086 |
|
|
reff2=min(reff(i,j,k,2),20.0) |
1087 |
|
|
|
1088 |
|
|
w1=taucl(i,j,k,1)*(aiw(1,ib)+(aiw(2,ib)+(aiw(3,ib) |
1089 |
|
|
* +aiw(4,ib)*reff1)*reff1)*reff1) |
1090 |
|
|
w2=taucl(i,j,k,2)*(aww(1,ib)+(aww(2,ib)+(aww(3,ib) |
1091 |
|
|
* +aww(4,ib)*reff2)*reff2)*reff2) |
1092 |
|
|
w3=taucl(i,j,k,3)*0.54 |
1093 |
|
|
ww=(w1+w2+w3)/taux |
1094 |
|
|
|
1095 |
|
|
g1=w1*(aig(1,ib)+(aig(2,ib)+(aig(3,ib) |
1096 |
|
|
* +aig(4,ib)*reff1)*reff1)*reff1) |
1097 |
|
|
g2=w2*(awg(1,ib)+(awg(2,ib)+(awg(3,ib) |
1098 |
|
|
* +awg(4,ib)*reff2)*reff2)*reff2) |
1099 |
|
|
g3=w3*0.95 |
1100 |
|
|
|
1101 |
|
|
gg=(g1+g2+g3)/(w1+w2+w3) |
1102 |
|
|
|
1103 |
|
|
c-----parameterization of LW scattering |
1104 |
|
|
c compute forward-scattered fraction and scale optical thickness |
1105 |
|
|
|
1106 |
|
|
ff=0.5+(0.3739+(0.0076+0.1185*gg)*gg)*gg |
1107 |
|
|
taux=taux*(1.-ww*ff) |
1108 |
|
|
|
1109 |
|
|
c-----compute equivalent cloud-free fraction, clr, for each layer |
1110 |
|
|
c the cloud diffuse transmittance is approximated by using |
1111 |
|
|
c a diffusivity factor of 1.66. |
1112 |
|
|
|
1113 |
|
|
clr(i,j,k)=1.0-(fcld(i,j,k)*(1.0-exp(-1.66*taux))) |
1114 |
|
|
|
1115 |
|
|
endif |
1116 |
|
|
|
1117 |
|
|
enddo |
1118 |
|
|
enddo |
1119 |
|
|
enddo |
1120 |
|
|
|
1121 |
|
|
c-----compute the exponential terms (eq. 32) at each layer due to |
1122 |
|
|
c water vapor line absorption when k-distribution is used |
1123 |
|
|
|
1124 |
|
|
if (.not.h2otbl .and. .not.b10bnd) then |
1125 |
|
|
call h2oexps(ib,m,n,np,dh2o,pa,dt,xkw,aw,bw,pm,mw,h2oexp) |
1126 |
|
|
endif |
1127 |
|
|
|
1128 |
|
|
c-----compute the exponential terms (eq. 46) at each layer due to |
1129 |
|
|
c water vapor continuum absorption |
1130 |
|
|
|
1131 |
|
|
if (conbnd) then |
1132 |
|
|
call conexps(ib,m,n,np,dcont,xke,conexp) |
1133 |
|
|
endif |
1134 |
|
|
|
1135 |
|
|
c-----compute the exponential terms (eq. 32) at each layer due to |
1136 |
|
|
c co2 absorption |
1137 |
|
|
|
1138 |
|
|
if (.not.high .and. co2bnd) then |
1139 |
|
|
call co2exps(m,n,np,dco2,pa,dt,co2exp) |
1140 |
|
|
endif |
1141 |
|
|
|
1142 |
|
|
c***** for trace gases ***** |
1143 |
|
|
|
1144 |
|
|
if (trace) then |
1145 |
|
|
|
1146 |
|
|
c-----compute the exponential terms at each layer due to n2o absorption |
1147 |
|
|
|
1148 |
|
|
if (n2obnd) then |
1149 |
|
|
call n2oexps(ib,m,n,np,dn2o,pa,dt,n2oexp) |
1150 |
|
|
endif |
1151 |
|
|
|
1152 |
|
|
c-----compute the exponential terms at each layer due to ch4 absorption |
1153 |
|
|
|
1154 |
|
|
if (ch4bnd) then |
1155 |
|
|
call ch4exps(ib,m,n,np,dch4,pa,dt,ch4exp) |
1156 |
|
|
endif |
1157 |
|
|
|
1158 |
|
|
c-----compute the exponential terms due to co2 minor absorption |
1159 |
|
|
|
1160 |
|
|
if (combnd) then |
1161 |
|
|
call comexps(ib,m,n,np,dco2,dt,comexp) |
1162 |
|
|
endif |
1163 |
|
|
|
1164 |
|
|
c-----compute the exponential terms due to cfc11 absorption |
1165 |
|
|
|
1166 |
|
|
if (f11bnd) then |
1167 |
|
|
a1 = 1.26610e-3 |
1168 |
|
|
b1 = 3.55940e-6 |
1169 |
|
|
fk1 = 1.89736e+1 |
1170 |
|
|
a2 = 8.19370e-4 |
1171 |
|
|
b2 = 4.67810e-6 |
1172 |
|
|
fk2 = 1.01487e+1 |
1173 |
|
|
call cfcexps(ib,m,n,np,a1,b1,fk1,a2,b2,fk2,df11,dt,f11exp) |
1174 |
|
|
endif |
1175 |
|
|
|
1176 |
|
|
c-----compute the exponential terms due to cfc12 absorption |
1177 |
|
|
|
1178 |
|
|
if (f12bnd) then |
1179 |
|
|
a1 = 8.77370e-4 |
1180 |
|
|
b1 =-5.88440e-6 |
1181 |
|
|
fk1 = 1.58104e+1 |
1182 |
|
|
a2 = 8.62000e-4 |
1183 |
|
|
b2 =-4.22500e-6 |
1184 |
|
|
fk2 = 3.70107e+1 |
1185 |
|
|
call cfcexps(ib,m,n,np,a1,b1,fk1,a2,b2,fk2,df12,dt,f12exp) |
1186 |
|
|
endif |
1187 |
|
|
|
1188 |
|
|
c-----compute the exponential terms due to cfc22 absorption |
1189 |
|
|
|
1190 |
|
|
if (f22bnd) then |
1191 |
|
|
a1 = 9.65130e-4 |
1192 |
|
|
b1 = 1.31280e-5 |
1193 |
|
|
fk1 = 6.18536e+0 |
1194 |
|
|
a2 =-3.00010e-5 |
1195 |
|
|
b2 = 5.25010e-7 |
1196 |
|
|
fk2 = 3.27912e+1 |
1197 |
|
|
call cfcexps(ib,m,n,np,a1,b1,fk1,a2,b2,fk2,df22,dt,f22exp) |
1198 |
|
|
endif |
1199 |
|
|
|
1200 |
|
|
c-----compute the exponential terms at each layer in band 10 due to |
1201 |
|
|
c h2o line and continuum, co2, and n2o absorption |
1202 |
|
|
|
1203 |
|
|
if (b10bnd) then |
1204 |
|
|
call b10exps(m,n,np,dh2o,dcont,dco2,dn2o,pa,dt |
1205 |
|
|
* ,h2oexp,conexp,co2exp,n2oexp) |
1206 |
|
|
endif |
1207 |
|
|
|
1208 |
|
|
endif |
1209 |
|
|
|
1210 |
|
|
c-----compute transmittances for regions between levels k1 and k2 |
1211 |
|
|
c and update the fluxes at the two levels. |
1212 |
|
|
|
1213 |
|
|
|
1214 |
|
|
c-----initialize fluxes |
1215 |
|
|
|
1216 |
|
|
do k=1,np+1 |
1217 |
|
|
do j=1,n |
1218 |
|
|
do i=1,m |
1219 |
|
|
flxu(i,j,k) = 0.0 |
1220 |
|
|
flxd(i,j,k) = 0.0 |
1221 |
|
|
flcu(i,j,k) = 0.0 |
1222 |
|
|
flcd(i,j,k) = 0.0 |
1223 |
|
|
enddo |
1224 |
|
|
enddo |
1225 |
|
|
enddo |
1226 |
|
|
|
1227 |
|
|
|
1228 |
|
|
do 2000 k1=1,np |
1229 |
|
|
|
1230 |
|
|
c-----initialize fclr, th2o, tcon, tco2, and tranal |
1231 |
|
|
c fclr is the clear fraction of the line-of-sight |
1232 |
|
|
c clrlw, clrmd, and clrhi are the clear-sky fractions of the |
1233 |
|
|
c low, middle, and high troposphere, respectively |
1234 |
|
|
c tranal is the aerosol transmission function |
1235 |
|
|
|
1236 |
|
|
do j=1,n |
1237 |
|
|
do i=1,m |
1238 |
|
|
fclr(i,j) = 1.0 |
1239 |
|
|
clrlw(i,j) = 1.0 |
1240 |
|
|
clrmd(i,j) = 1.0 |
1241 |
|
|
clrhi(i,j) = 1.0 |
1242 |
|
|
tranal(i,j)= 1.0 |
1243 |
|
|
enddo |
1244 |
|
|
enddo |
1245 |
|
|
|
1246 |
|
|
c-----for h2o line transmission |
1247 |
|
|
|
1248 |
|
|
if (.not. h2otbl) then |
1249 |
|
|
do ik=1,6 |
1250 |
|
|
do j=1,n |
1251 |
|
|
do i=1,m |
1252 |
|
|
th2o(i,j,ik)=1.0 |
1253 |
|
|
enddo |
1254 |
|
|
enddo |
1255 |
|
|
enddo |
1256 |
|
|
endif |
1257 |
|
|
|
1258 |
|
|
c-----for h2o continuum transmission |
1259 |
|
|
|
1260 |
|
|
if (conbnd) then |
1261 |
|
|
do iq=1,3 |
1262 |
|
|
do j=1,n |
1263 |
|
|
do i=1,m |
1264 |
|
|
tcon(i,j,iq)=1.0 |
1265 |
|
|
enddo |
1266 |
|
|
enddo |
1267 |
|
|
enddo |
1268 |
|
|
endif |
1269 |
|
|
|
1270 |
|
|
c-----for co2 transmission using k-distribution method. |
1271 |
|
|
c band 3 is divided into 3 sub-bands, but sub-bands 3a and 3c |
1272 |
|
|
c are combined in computing the co2 transmittance. |
1273 |
|
|
|
1274 |
|
|
if (.not.high .and. co2bnd) then |
1275 |
|
|
do isb=1,2 |
1276 |
|
|
do ik=1,6 |
1277 |
|
|
do j=1,n |
1278 |
|
|
do i=1,m |
1279 |
|
|
tco2(i,j,ik,isb)=1.0 |
1280 |
|
|
enddo |
1281 |
|
|
enddo |
1282 |
|
|
enddo |
1283 |
|
|
enddo |
1284 |
|
|
endif |
1285 |
|
|
|
1286 |
|
|
c***** for trace gases ***** |
1287 |
|
|
|
1288 |
|
|
if (trace) then |
1289 |
|
|
|
1290 |
|
|
c-----for n2o transmission using k-distribution method. |
1291 |
|
|
|
1292 |
|
|
if (n2obnd) then |
1293 |
|
|
do ik=1,4 |
1294 |
|
|
do j=1,n |
1295 |
|
|
do i=1,m |
1296 |
|
|
tn2o(i,j,ik)=1.0 |
1297 |
|
|
enddo |
1298 |
|
|
enddo |
1299 |
|
|
enddo |
1300 |
|
|
endif |
1301 |
|
|
|
1302 |
|
|
c-----for ch4 transmission using k-distribution method. |
1303 |
|
|
|
1304 |
|
|
if (ch4bnd) then |
1305 |
|
|
do ik=1,4 |
1306 |
|
|
do j=1,n |
1307 |
|
|
do i=1,m |
1308 |
|
|
tch4(i,j,ik)=1.0 |
1309 |
|
|
enddo |
1310 |
|
|
enddo |
1311 |
|
|
enddo |
1312 |
|
|
endif |
1313 |
|
|
|
1314 |
|
|
c-----for co2-minor transmission using k-distribution method. |
1315 |
|
|
|
1316 |
|
|
if (combnd) then |
1317 |
|
|
do ik=1,2 |
1318 |
|
|
do j=1,n |
1319 |
|
|
do i=1,m |
1320 |
|
|
tcom(i,j,ik)=1.0 |
1321 |
|
|
enddo |
1322 |
|
|
enddo |
1323 |
|
|
enddo |
1324 |
|
|
endif |
1325 |
|
|
|
1326 |
|
|
c-----for cfc-11 transmission using k-distribution method. |
1327 |
|
|
|
1328 |
|
|
if (f11bnd) then |
1329 |
|
|
do j=1,n |
1330 |
|
|
do i=1,m |
1331 |
|
|
tf11(i,j)=1.0 |
1332 |
|
|
enddo |
1333 |
|
|
enddo |
1334 |
|
|
endif |
1335 |
|
|
|
1336 |
|
|
c-----for cfc-12 transmission using k-distribution method. |
1337 |
|
|
|
1338 |
|
|
if (f12bnd) then |
1339 |
|
|
do j=1,n |
1340 |
|
|
do i=1,m |
1341 |
|
|
tf12(i,j)=1.0 |
1342 |
|
|
enddo |
1343 |
|
|
enddo |
1344 |
|
|
endif |
1345 |
|
|
|
1346 |
|
|
c-----for cfc-22 transmission when using k-distribution method. |
1347 |
|
|
|
1348 |
|
|
if (f22bnd) then |
1349 |
|
|
do j=1,n |
1350 |
|
|
do i=1,m |
1351 |
|
|
tf22(i,j)=1.0 |
1352 |
|
|
enddo |
1353 |
|
|
enddo |
1354 |
|
|
endif |
1355 |
|
|
|
1356 |
|
|
c-----for the transmission in band 10 using k-distribution method. |
1357 |
|
|
|
1358 |
|
|
if (b10bnd) then |
1359 |
|
|
do ik=1,6 |
1360 |
|
|
do j=1,n |
1361 |
|
|
do i=1,m |
1362 |
|
|
th2o(i,j,ik)=1.0 |
1363 |
|
|
tco2(i,j,ik,1)=1.0 |
1364 |
|
|
enddo |
1365 |
|
|
enddo |
1366 |
|
|
enddo |
1367 |
|
|
do iq=1,3 |
1368 |
|
|
do j=1,n |
1369 |
|
|
do i=1,m |
1370 |
|
|
tcon(i,j,iq)=1.0 |
1371 |
|
|
enddo |
1372 |
|
|
enddo |
1373 |
|
|
enddo |
1374 |
|
|
do ik=1,4 |
1375 |
|
|
do j=1,n |
1376 |
|
|
do i=1,m |
1377 |
|
|
tn2o(i,j,ik)=1.0 |
1378 |
|
|
enddo |
1379 |
|
|
enddo |
1380 |
|
|
enddo |
1381 |
|
|
endif |
1382 |
|
|
|
1383 |
|
|
endif |
1384 |
|
|
|
1385 |
|
|
c-----loop over the bottom level of the region (k2) |
1386 |
|
|
|
1387 |
|
|
do 3000 k2=k1+1,np+1 |
1388 |
|
|
|
1389 |
|
|
c-----initialize total transmission function (trant) |
1390 |
|
|
|
1391 |
|
|
do j=1,n |
1392 |
|
|
do i=1,m |
1393 |
|
|
trant(i,j)=1.0 |
1394 |
|
|
enddo |
1395 |
|
|
enddo |
1396 |
|
|
|
1397 |
|
|
if (h2otbl) then |
1398 |
|
|
w1=-8.0 |
1399 |
|
|
p1=-2.0 |
1400 |
|
|
dwe=0.3 |
1401 |
|
|
dpe=0.2 |
1402 |
|
|
|
1403 |
|
|
c-----compute water vapor transmittance using table look-up |
1404 |
|
|
|
1405 |
|
|
if (ib.eq.1) then |
1406 |
|
|
call tablup(k1,k2,m,n,np,nx,nh,nt,sh2o,swpre,swtem, |
1407 |
|
|
* w1,p1,dwe,dpe,h11,h12,h13,trant) |
1408 |
|
|
|
1409 |
|
|
endif |
1410 |
|
|
if (ib.eq.2) then |
1411 |
|
|
call tablup(k1,k2,m,n,np,nx,nh,nt,sh2o,swpre,swtem, |
1412 |
|
|
* w1,p1,dwe,dpe,h21,h22,h23,trant) |
1413 |
|
|
|
1414 |
|
|
endif |
1415 |
|
|
if (ib.eq.8) then |
1416 |
|
|
call tablup(k1,k2,m,n,np,nx,nh,nt,sh2o,swpre,swtem, |
1417 |
|
|
* w1,p1,dwe,dpe,h81,h82,h83,trant) |
1418 |
|
|
endif |
1419 |
|
|
|
1420 |
|
|
else |
1421 |
|
|
|
1422 |
|
|
c-----compute water vapor transmittance using k-distribution |
1423 |
|
|
|
1424 |
|
|
if (.not.b10bnd) then |
1425 |
|
|
call h2okdis(ib,m,n,np,k2-1,fkw,gkw,ne,h2oexp,conexp, |
1426 |
|
|
* th2o,tcon,trant) |
1427 |
|
|
endif |
1428 |
|
|
|
1429 |
|
|
endif |
1430 |
|
|
|
1431 |
|
|
if (co2bnd) then |
1432 |
|
|
|
1433 |
|
|
if (high) then |
1434 |
|
|
|
1435 |
|
|
c-----compute co2 transmittance using table look-up method |
1436 |
|
|
|
1437 |
|
|
w1=-4.0 |
1438 |
|
|
p1=-2.0 |
1439 |
|
|
dwe=0.3 |
1440 |
|
|
dpe=0.2 |
1441 |
|
|
call tablup(k1,k2,m,n,np,nx,nc,nt,sco3,scopre,scotem, |
1442 |
|
|
* w1,p1,dwe,dpe,c1,c2,c3,trant) |
1443 |
|
|
else |
1444 |
|
|
|
1445 |
|
|
c-----compute co2 transmittance using k-distribution method |
1446 |
|
|
call co2kdis(m,n,np,k2-1,co2exp,tco2,trant) |
1447 |
|
|
|
1448 |
|
|
endif |
1449 |
|
|
|
1450 |
|
|
endif |
1451 |
|
|
|
1452 |
|
|
c-----All use table look-up to compute o3 transmittance. |
1453 |
|
|
|
1454 |
|
|
if (oznbnd) then |
1455 |
|
|
w1=-6.0 |
1456 |
|
|
p1=-2.0 |
1457 |
|
|
dwe=0.3 |
1458 |
|
|
dpe=0.2 |
1459 |
|
|
call tablup(k1,k2,m,n,np,nx,no,nt,sco3,scopre,scotem, |
1460 |
|
|
* w1,p1,dwe,dpe,o1,o2,o3,trant) |
1461 |
|
|
endif |
1462 |
|
|
|
1463 |
|
|
c***** for trace gases ***** |
1464 |
|
|
|
1465 |
|
|
if (trace) then |
1466 |
|
|
|
1467 |
|
|
c-----compute n2o transmittance using k-distribution method |
1468 |
|
|
|
1469 |
|
|
if (n2obnd) then |
1470 |
|
|
call n2okdis(ib,m,n,np,k2-1,n2oexp,tn2o,trant) |
1471 |
|
|
endif |
1472 |
|
|
|
1473 |
|
|
c-----compute ch4 transmittance using k-distribution method |
1474 |
|
|
|
1475 |
|
|
if (ch4bnd) then |
1476 |
|
|
call ch4kdis(ib,m,n,np,k2-1,ch4exp,tch4,trant) |
1477 |
|
|
endif |
1478 |
|
|
|
1479 |
|
|
c-----compute co2-minor transmittance using k-distribution method |
1480 |
|
|
|
1481 |
|
|
if (combnd) then |
1482 |
|
|
call comkdis(ib,m,n,np,k2-1,comexp,tcom,trant) |
1483 |
|
|
endif |
1484 |
|
|
|
1485 |
|
|
c-----compute cfc11 transmittance using k-distribution method |
1486 |
|
|
|
1487 |
|
|
if (f11bnd) then |
1488 |
|
|
call cfckdis(m,n,np,k2-1,f11exp,tf11,trant) |
1489 |
|
|
endif |
1490 |
|
|
|
1491 |
|
|
c-----compute cfc12 transmittance using k-distribution method |
1492 |
|
|
|
1493 |
|
|
if (f12bnd) then |
1494 |
|
|
call cfckdis(m,n,np,k2-1,f12exp,tf12,trant) |
1495 |
|
|
endif |
1496 |
|
|
|
1497 |
|
|
c-----compute cfc22 transmittance using k-distribution method |
1498 |
|
|
|
1499 |
|
|
if (f22bnd) then |
1500 |
|
|
call cfckdis(m,n,np,k2-1,f22exp,tf22,trant) |
1501 |
|
|
endif |
1502 |
|
|
|
1503 |
|
|
c-----compute transmittance in band 10 using k-distribution method |
1504 |
|
|
c here, trant is the change in transmittance due to n2o absorption |
1505 |
|
|
|
1506 |
|
|
if (b10bnd) then |
1507 |
|
|
call b10kdis(m,n,np,k2-1,h2oexp,conexp,co2exp,n2oexp |
1508 |
|
|
* ,th2o,tcon,tco2,tn2o,trant) |
1509 |
|
|
endif |
1510 |
|
|
|
1511 |
|
|
endif |
1512 |
|
|
c |
1513 |
|
|
c-----include aerosol effect |
1514 |
|
|
c |
1515 |
|
|
do j=1,n |
1516 |
|
|
do i=1,m |
1517 |
|
|
ff=0.5+(0.3739+(0.0076+0.1185*asyal(i,j,k2-1,ib)) |
1518 |
|
|
* *asyal(i,j,k2-1,ib))*asyal(i,j,k2-1,ib) |
1519 |
|
|
taux=taual(i,j,k2-1,ib)*(1.-ssaal(i,j,k2-1,ib)*ff) |
1520 |
|
|
tranal(i,j)=tranal(i,j)*exp(-1.66*taux) |
1521 |
|
|
trant (i,j)=trant(i,j) *tranal(i,j) |
1522 |
|
|
enddo |
1523 |
|
|
enddo |
1524 |
|
|
|
1525 |
|
|
c-----Identify the clear-sky fractions clrhi, clrmd and clrlw, in the |
1526 |
|
|
c high, middle and low cloud groups. |
1527 |
|
|
c fclr is the clear-sky fraction between levels k1 and k2 assuming |
1528 |
|
|
c the three cloud groups are randomly overlapped. |
1529 |
|
|
|
1530 |
|
|
do j=1,n |
1531 |
|
|
do i=1,m |
1532 |
|
|
if( k2 .le. ict ) then |
1533 |
|
|
clrhi(i,j)=min(clr(i,j,k2-1),clrhi(i,j)) |
1534 |
|
|
elseif( k2 .gt. ict .and. k2 .le. icb ) then |
1535 |
|
|
clrmd(i,j)=min(clr(i,j,k2-1),clrmd(i,j)) |
1536 |
|
|
elseif( k2 .gt. icb ) then |
1537 |
|
|
clrlw(i,j)=min(clr(i,j,k2-1),clrlw(i,j)) |
1538 |
|
|
endif |
1539 |
|
|
fclr(i,j)=clrlw(i,j)*clrmd(i,j)*clrhi(i,j) |
1540 |
|
|
|
1541 |
|
|
enddo |
1542 |
|
|
enddo |
1543 |
|
|
|
1544 |
|
|
c-----compute upward and downward fluxes (band 1-9). |
1545 |
|
|
c add "boundary" terms to the net downward flux. |
1546 |
|
|
c these are the first terms on the right-hand-side of |
1547 |
|
|
c eqs. (56a) and (56b). downward fluxes are positive. |
1548 |
|
|
|
1549 |
|
|
if (.not. b10bnd) then |
1550 |
|
|
|
1551 |
|
|
if (k2 .eq. k1+1) then |
1552 |
|
|
|
1553 |
|
|
do j=1,n |
1554 |
|
|
do i=1,m |
1555 |
|
|
|
1556 |
|
|
c-----compute upward and downward fluxes for clear-sky situation |
1557 |
|
|
|
1558 |
|
|
flcu(i,j,k1)=flcu(i,j,k1)-blayer(i,j,k1) |
1559 |
|
|
flcd(i,j,k2)=flcd(i,j,k2)+blayer(i,j,k1) |
1560 |
|
|
|
1561 |
|
|
c-----compute upward and downward fluxes for all-sky situation |
1562 |
|
|
|
1563 |
|
|
flxu(i,j,k1)=flxu(i,j,k1)-blayer(i,j,k1) |
1564 |
|
|
flxd(i,j,k2)=flxd(i,j,k2)+blayer(i,j,k1) |
1565 |
|
|
|
1566 |
|
|
enddo |
1567 |
|
|
enddo |
1568 |
|
|
|
1569 |
|
|
endif |
1570 |
|
|
|
1571 |
|
|
c-----add flux components involving the four layers above and below |
1572 |
|
|
c the levels k1 and k2. it follows eqs. (56a) and (56b). |
1573 |
|
|
|
1574 |
|
|
do j=1,n |
1575 |
|
|
do i=1,m |
1576 |
|
|
xx=trant(i,j)*dlayer(i,j,k2) |
1577 |
|
|
flcu(i,j,k1) =flcu(i,j,k1)+xx |
1578 |
|
|
flxu(i,j,k1) =flxu(i,j,k1)+xx*fclr(i,j) |
1579 |
|
|
xx=trant(i,j)*dlayer(i,j,k1) |
1580 |
|
|
flcd(i,j,k2) =flcd(i,j,k2)+xx |
1581 |
|
|
flxd(i,j,k2) =flxd(i,j,k2)+xx*fclr(i,j) |
1582 |
|
|
enddo |
1583 |
|
|
enddo |
1584 |
|
|
|
1585 |
|
|
else |
1586 |
|
|
|
1587 |
|
|
c-----flux reduction due to n2o in band 10 |
1588 |
|
|
|
1589 |
|
|
if (trace) then |
1590 |
|
|
|
1591 |
|
|
do j=1,n |
1592 |
|
|
do i=1,m |
1593 |
|
|
rflx(i,j,k1) = rflx(i,j,k1)+trant(i,j)*fclr(i,j) |
1594 |
|
|
* *dlayer(i,j,k2) |
1595 |
|
|
rflx(i,j,k2) = rflx(i,j,k2)+trant(i,j)*fclr(i,j) |
1596 |
|
|
* *dlayer(i,j,k1) |
1597 |
|
|
rflc(i,j,k1) = rflc(i,j,k1)+trant(i,j) |
1598 |
|
|
* *dlayer(i,j,k2) |
1599 |
|
|
rflc(i,j,k2) = rflc(i,j,k2)+trant(i,j) |
1600 |
|
|
* *dlayer(i,j,k1) |
1601 |
|
|
enddo |
1602 |
|
|
enddo |
1603 |
|
|
|
1604 |
|
|
endif |
1605 |
|
|
|
1606 |
|
|
endif |
1607 |
|
|
|
1608 |
|
|
3000 continue |
1609 |
|
|
|
1610 |
|
|
|
1611 |
|
|
c-----transmission between level k1 and the surface |
1612 |
|
|
|
1613 |
|
|
do j=1,n |
1614 |
|
|
do i=1,m |
1615 |
|
|
trantcr(i,j,k1) =trant(i,j) |
1616 |
|
|
transfc(i,j,k1) =trant(i,j)*fclr(i,j) |
1617 |
|
|
enddo |
1618 |
|
|
enddo |
1619 |
|
|
|
1620 |
|
|
c-----compute the partial derivative of fluxes with respect to |
1621 |
|
|
c surface temperature (eq. 59) |
1622 |
|
|
|
1623 |
|
|
if (trace .or. (.not. b10bnd) ) then |
1624 |
|
|
|
1625 |
|
|
do j=1,n |
1626 |
|
|
do i=1,m |
1627 |
|
|
dfdts(i,j,k1) =dfdts(i,j,k1)-dbs(i,j)*transfc(i,j,k1) |
1628 |
|
|
enddo |
1629 |
|
|
enddo |
1630 |
|
|
|
1631 |
|
|
endif |
1632 |
|
|
|
1633 |
|
|
2000 continue |
1634 |
|
|
|
1635 |
|
|
if (.not. b10bnd) then |
1636 |
|
|
|
1637 |
|
|
c-----add contribution from the surface to the flux terms at the surface |
1638 |
|
|
|
1639 |
|
|
do j=1,n |
1640 |
|
|
do i=1,m |
1641 |
|
|
flcu(i,j,np+1)=flcu(i,j,np+1)-blayer(i,j,np+1) |
1642 |
|
|
flxu(i,j,np+1)=flxu(i,j,np+1)-blayer(i,j,np+1) |
1643 |
|
|
st4(i,j)=st4(i,j)-blayer(i,j,np+1) |
1644 |
|
|
dfdts(i,j,np+1)=dfdts(i,j,np+1)-dbs(i,j) |
1645 |
|
|
enddo |
1646 |
|
|
enddo |
1647 |
|
|
|
1648 |
|
|
c-----add the flux component reflected by the surface |
1649 |
|
|
c note: upward flux is negative |
1650 |
|
|
|
1651 |
|
|
do k=1, np+1 |
1652 |
|
|
do j=1,n |
1653 |
|
|
do i=1,m |
1654 |
|
|
flcu(i,j,k)=flcu(i,j,k)- |
1655 |
|
|
* flcd(i,j,np+1)*trantcr(i,j,k)*(1.-emiss(i,j,ib)) |
1656 |
|
|
flxu(i,j,k)=flxu(i,j,k)- |
1657 |
|
|
* flxd(i,j,np+1)*transfc(i,j,k)*(1.-emiss(i,j,ib)) |
1658 |
|
|
enddo |
1659 |
|
|
enddo |
1660 |
|
|
enddo |
1661 |
|
|
|
1662 |
|
|
endif |
1663 |
|
|
|
1664 |
|
|
c-----summation of fluxes over spectral bands |
1665 |
|
|
|
1666 |
|
|
do k=1,np+1 |
1667 |
|
|
do j=1,n |
1668 |
|
|
do i=1,m |
1669 |
|
|
flc(i,j,k)=flc(i,j,k)+flcd(i,j,k)+flcu(i,j,k) |
1670 |
|
|
flx(i,j,k)=flx(i,j,k)+flxd(i,j,k)+flxu(i,j,k) |
1671 |
|
|
enddo |
1672 |
|
|
enddo |
1673 |
|
|
enddo |
1674 |
|
|
|
1675 |
|
|
1000 continue |
1676 |
|
|
|
1677 |
|
|
c-----adjust fluxes due to n2o absorption in band 10 |
1678 |
|
|
|
1679 |
|
|
do k=1,np+1 |
1680 |
|
|
do j=1,n |
1681 |
|
|
do i=1,m |
1682 |
|
|
flc(i,j,k)=flc(i,j,k)+rflc(i,j,k) |
1683 |
|
|
flx(i,j,k)=flx(i,j,k)+rflx(i,j,k) |
1684 |
|
|
enddo |
1685 |
|
|
enddo |
1686 |
|
|
enddo |
1687 |
|
|
|
1688 |
|
|
return |
1689 |
|
|
end |
1690 |
|
|
c*********************************************************************** |
1691 |
|
|
subroutine column (m,n,np,pa,dt,sabs0,sabs,spre,stem) |
1692 |
|
|
c*********************************************************************** |
1693 |
|
|
c-----compute column-integrated (from top of the model atmosphere) |
1694 |
|
|
c absorber amount (sabs), absorber-weighted pressure (spre) and |
1695 |
|
|
c temperature (stem). |
1696 |
|
|
c computations of spre and stem follows eqs. (37) and (38). |
1697 |
|
|
c |
1698 |
|
|
c--- input parameters |
1699 |
|
|
c number of soundings in zonal direction (m) |
1700 |
|
|
c number of soundings in meridional direction (n) |
1701 |
|
|
c number of atmospheric layers (np) |
1702 |
|
|
c layer pressure (pa) |
1703 |
|
|
c layer temperature minus 250K (dt) |
1704 |
|
|
c layer absorber amount (sabs0) |
1705 |
|
|
c |
1706 |
|
|
c--- output parameters |
1707 |
|
|
c column-integrated absorber amount (sabs) |
1708 |
|
|
c column absorber-weighted pressure (spre) |
1709 |
|
|
c column absorber-weighted temperature (stem) |
1710 |
|
|
c |
1711 |
|
|
c--- units of pa and dt are mb and k, respectively. |
1712 |
|
|
c units of sabs are g/cm**2 for water vapor and (cm-atm)stp |
1713 |
|
|
c for co2 and o3 |
1714 |
|
|
c*********************************************************************** |
1715 |
|
|
implicit none |
1716 |
|
|
integer m,n,np,i,j,k |
1717 |
|
|
|
1718 |
|
|
c---- input parameters ----- |
1719 |
|
|
|
1720 |
|
|
real pa(m,n,np),dt(m,n,np),sabs0(m,n,np) |
1721 |
|
|
|
1722 |
|
|
c---- output parameters ----- |
1723 |
|
|
|
1724 |
|
|
real sabs(m,n,np+1),spre(m,n,np+1),stem(m,n,np+1) |
1725 |
|
|
|
1726 |
|
|
c********************************************************************* |
1727 |
|
|
do j=1,n |
1728 |
|
|
do i=1,m |
1729 |
|
|
sabs(i,j,1)=0.0 |
1730 |
|
|
spre(i,j,1)=0.0 |
1731 |
|
|
stem(i,j,1)=0.0 |
1732 |
|
|
enddo |
1733 |
|
|
enddo |
1734 |
|
|
|
1735 |
|
|
do k=1,np |
1736 |
|
|
do j=1,n |
1737 |
|
|
do i=1,m |
1738 |
|
|
sabs(i,j,k+1)=sabs(i,j,k)+sabs0(i,j,k) |
1739 |
|
|
spre(i,j,k+1)=spre(i,j,k)+pa(i,j,k)*sabs0(i,j,k) |
1740 |
|
|
stem(i,j,k+1)=stem(i,j,k)+dt(i,j,k)*sabs0(i,j,k) |
1741 |
|
|
enddo |
1742 |
|
|
enddo |
1743 |
|
|
enddo |
1744 |
|
|
|
1745 |
|
|
return |
1746 |
|
|
end |
1747 |
|
|
c********************************************************************** |
1748 |
|
|
subroutine h2oexps(ib,m,n,np,dh2o,pa,dt,xkw,aw,bw,pm,mw,h2oexp) |
1749 |
|
|
c********************************************************************** |
1750 |
|
|
c compute exponentials for water vapor line absorption |
1751 |
|
|
c in individual layers. |
1752 |
|
|
c |
1753 |
|
|
c---- input parameters |
1754 |
|
|
c spectral band (ib) |
1755 |
|
|
c number of grid intervals in zonal direction (m) |
1756 |
|
|
c number of grid intervals in meridional direction (n) |
1757 |
|
|
c number of layers (np) |
1758 |
|
|
c layer water vapor amount for line absorption (dh2o) |
1759 |
|
|
c layer pressure (pa) |
1760 |
|
|
c layer temperature minus 250K (dt) |
1761 |
|
|
c absorption coefficients for the first k-distribution |
1762 |
|
|
c function due to h2o line absorption (xkw) |
1763 |
|
|
c coefficients for the temperature and pressure scaling (aw,bw,pm) |
1764 |
|
|
c ratios between neighboring absorption coefficients for |
1765 |
|
|
c h2o line absorption (mw) |
1766 |
|
|
c |
1767 |
|
|
c---- output parameters |
1768 |
|
|
c 6 exponentials for each layer (h2oexp) |
1769 |
|
|
c********************************************************************** |
1770 |
|
|
implicit none |
1771 |
|
|
integer ib,m,n,np,i,j,k,ik |
1772 |
|
|
|
1773 |
|
|
c---- input parameters ------ |
1774 |
|
|
|
1775 |
|
|
real dh2o(m,n,np),pa(m,n,np),dt(m,n,np) |
1776 |
|
|
|
1777 |
|
|
c---- output parameters ----- |
1778 |
|
|
|
1779 |
|
|
real h2oexp(m,n,np,6) |
1780 |
|
|
|
1781 |
|
|
c---- static data ----- |
1782 |
|
|
|
1783 |
|
|
integer mw(9) |
1784 |
|
|
real xkw(9),aw(9),bw(9),pm(9) |
1785 |
|
|
|
1786 |
|
|
c---- temporary arrays ----- |
1787 |
|
|
|
1788 |
|
|
real xh,xh1 |
1789 |
|
|
|
1790 |
|
|
c********************************************************************** |
1791 |
|
|
c note that the 3 sub-bands in band 3 use the same set of xkw, aw, |
1792 |
|
|
c and bw, therefore, h2oexp for these sub-bands are identical. |
1793 |
|
|
c********************************************************************** |
1794 |
|
|
|
1795 |
|
|
do k=1,np |
1796 |
|
|
do j=1,n |
1797 |
|
|
do i=1,m |
1798 |
|
|
|
1799 |
|
|
c-----xh is the scaled water vapor amount for line absorption |
1800 |
|
|
c computed from (27) |
1801 |
|
|
|
1802 |
|
|
xh = dh2o(i,j,k)*(pa(i,j,k)/500.)**pm(ib) |
1803 |
|
|
1 * ( 1.+(aw(ib)+bw(ib)* dt(i,j,k))*dt(i,j,k) ) |
1804 |
|
|
|
1805 |
|
|
c-----h2oexp is the water vapor transmittance of the layer k |
1806 |
|
|
c due to line absorption |
1807 |
|
|
|
1808 |
|
|
h2oexp(i,j,k,1) = exp(-xh*xkw(ib)) |
1809 |
|
|
|
1810 |
|
|
enddo |
1811 |
|
|
enddo |
1812 |
|
|
enddo |
1813 |
|
|
|
1814 |
|
|
do ik=2,6 |
1815 |
|
|
|
1816 |
|
|
if (mw(ib).eq.6) then |
1817 |
|
|
|
1818 |
|
|
do k=1,np |
1819 |
|
|
do j=1,n |
1820 |
|
|
do i=1,m |
1821 |
|
|
xh = h2oexp(i,j,k,ik-1)*h2oexp(i,j,k,ik-1) |
1822 |
|
|
h2oexp(i,j,k,ik) = xh*xh*xh |
1823 |
|
|
enddo |
1824 |
|
|
enddo |
1825 |
|
|
enddo |
1826 |
|
|
|
1827 |
|
|
elseif (mw(ib).eq.8) then |
1828 |
|
|
|
1829 |
|
|
do k=1,np |
1830 |
|
|
do j=1,n |
1831 |
|
|
do i=1,m |
1832 |
|
|
xh = h2oexp(i,j,k,ik-1)*h2oexp(i,j,k,ik-1) |
1833 |
|
|
xh = xh*xh |
1834 |
|
|
h2oexp(i,j,k,ik) = xh*xh |
1835 |
|
|
enddo |
1836 |
|
|
enddo |
1837 |
|
|
enddo |
1838 |
|
|
|
1839 |
|
|
elseif (mw(ib).eq.9) then |
1840 |
|
|
|
1841 |
|
|
do k=1,np |
1842 |
|
|
do j=1,n |
1843 |
|
|
do i=1,m |
1844 |
|
|
xh=h2oexp(i,j,k,ik-1)*h2oexp(i,j,k,ik-1)*h2oexp(i,j,k,ik-1) |
1845 |
|
|
xh1 = xh*xh |
1846 |
|
|
h2oexp(i,j,k,ik) = xh*xh1 |
1847 |
|
|
enddo |
1848 |
|
|
enddo |
1849 |
|
|
enddo |
1850 |
|
|
|
1851 |
|
|
else |
1852 |
|
|
|
1853 |
|
|
do k=1,np |
1854 |
|
|
do j=1,n |
1855 |
|
|
do i=1,m |
1856 |
|
|
xh = h2oexp(i,j,k,ik-1)*h2oexp(i,j,k,ik-1) |
1857 |
|
|
xh = xh*xh |
1858 |
|
|
xh = xh*xh |
1859 |
|
|
h2oexp(i,j,k,ik) = xh*xh |
1860 |
|
|
enddo |
1861 |
|
|
enddo |
1862 |
|
|
enddo |
1863 |
|
|
|
1864 |
|
|
endif |
1865 |
|
|
enddo |
1866 |
|
|
|
1867 |
|
|
return |
1868 |
|
|
end |
1869 |
|
|
c********************************************************************** |
1870 |
|
|
subroutine conexps(ib,m,n,np,dcont,xke,conexp) |
1871 |
|
|
c********************************************************************** |
1872 |
|
|
c compute exponentials for continuum absorption in individual layers. |
1873 |
|
|
c |
1874 |
|
|
c---- input parameters |
1875 |
|
|
c spectral band (ib) |
1876 |
|
|
c number of grid intervals in zonal direction (m) |
1877 |
|
|
c number of grid intervals in meridional direction (n) |
1878 |
|
|
c number of layers (np) |
1879 |
|
|
c layer scaled water vapor amount for continuum absorption (dcont) |
1880 |
|
|
c absorption coefficients for the first k-distribution function |
1881 |
|
|
c due to water vapor continuum absorption (xke) |
1882 |
|
|
c |
1883 |
|
|
c---- output parameters |
1884 |
|
|
c 1 or 3 exponentials for each layer (conexp) |
1885 |
|
|
c********************************************************************** |
1886 |
|
|
implicit none |
1887 |
|
|
integer ib,m,n,np,i,j,k,iq |
1888 |
|
|
|
1889 |
|
|
c---- input parameters ------ |
1890 |
|
|
|
1891 |
|
|
real dcont(m,n,np) |
1892 |
|
|
|
1893 |
|
|
c---- updated parameters ----- |
1894 |
|
|
|
1895 |
|
|
real conexp(m,n,np,3) |
1896 |
|
|
|
1897 |
|
|
c---- static data ----- |
1898 |
|
|
|
1899 |
|
|
real xke(9) |
1900 |
|
|
|
1901 |
|
|
c********************************************************************** |
1902 |
|
|
|
1903 |
|
|
do k=1,np |
1904 |
|
|
do j=1,n |
1905 |
|
|
do i=1,m |
1906 |
|
|
conexp(i,j,k,1) = exp(-dcont(i,j,k)*xke(ib)) |
1907 |
|
|
enddo |
1908 |
|
|
enddo |
1909 |
|
|
enddo |
1910 |
|
|
|
1911 |
|
|
if (ib .eq. 3) then |
1912 |
|
|
|
1913 |
|
|
c-----the absorption coefficients for sub-bands 3b (iq=2) and 3a (iq=3) |
1914 |
|
|
c are, respectively, two and three times the absorption coefficient |
1915 |
|
|
c for sub-band 3c (iq=1) (table 6). |
1916 |
|
|
|
1917 |
|
|
do iq=2,3 |
1918 |
|
|
do k=1,np |
1919 |
|
|
do j=1,n |
1920 |
|
|
do i=1,m |
1921 |
|
|
conexp(i,j,k,iq) = conexp(i,j,k,iq-1) *conexp(i,j,k,iq-1) |
1922 |
|
|
enddo |
1923 |
|
|
enddo |
1924 |
|
|
enddo |
1925 |
|
|
enddo |
1926 |
|
|
|
1927 |
|
|
endif |
1928 |
|
|
|
1929 |
|
|
return |
1930 |
|
|
end |
1931 |
|
|
c********************************************************************** |
1932 |
|
|
subroutine co2exps(m,n,np,dco2,pa,dt,co2exp) |
1933 |
|
|
c********************************************************************** |
1934 |
|
|
c compute co2 exponentials for individual layers. |
1935 |
|
|
c |
1936 |
|
|
c---- input parameters |
1937 |
|
|
c number of grid intervals in zonal direction (m) |
1938 |
|
|
c number of grid intervals in meridional direction (n) |
1939 |
|
|
c number of layers (np) |
1940 |
|
|
c layer co2 amount (dco2) |
1941 |
|
|
c layer pressure (pa) |
1942 |
|
|
c layer temperature minus 250K (dt) |
1943 |
|
|
c |
1944 |
|
|
c---- output parameters |
1945 |
|
|
c 6 exponentials for each layer (co2exp) |
1946 |
|
|
c********************************************************************** |
1947 |
|
|
implicit none |
1948 |
|
|
integer m,n,np,i,j,k |
1949 |
|
|
|
1950 |
|
|
c---- input parameters ----- |
1951 |
|
|
|
1952 |
|
|
real dco2(m,n,np),pa(m,n,np),dt(m,n,np) |
1953 |
|
|
|
1954 |
|
|
c---- output parameters ----- |
1955 |
|
|
|
1956 |
|
|
real co2exp(m,n,np,6,2) |
1957 |
|
|
|
1958 |
|
|
c---- temporary arrays ----- |
1959 |
|
|
|
1960 |
|
|
real xc |
1961 |
|
|
|
1962 |
|
|
c********************************************************************** |
1963 |
|
|
|
1964 |
|
|
do k=1,np |
1965 |
|
|
do j=1,n |
1966 |
|
|
do i=1,m |
1967 |
|
|
|
1968 |
|
|
c-----compute the scaled co2 amount from eq. (27) for band-wings |
1969 |
|
|
c (sub-bands 3a and 3c). |
1970 |
|
|
|
1971 |
|
|
xc = dco2(i,j,k)*(pa(i,j,k)/300.0)**0.5 |
1972 |
|
|
1 *(1.+(0.0182+1.07e-4*dt(i,j,k))*dt(i,j,k)) |
1973 |
|
|
|
1974 |
|
|
c-----six exponentials by powers of 8 (table 7). |
1975 |
|
|
|
1976 |
|
|
co2exp(i,j,k,1,1)=exp(-xc*2.656e-5) |
1977 |
|
|
|
1978 |
|
|
xc=co2exp(i,j,k,1,1)*co2exp(i,j,k,1,1) |
1979 |
|
|
xc=xc*xc |
1980 |
|
|
co2exp(i,j,k,2,1)=xc*xc |
1981 |
|
|
|
1982 |
|
|
xc=co2exp(i,j,k,2,1)*co2exp(i,j,k,2,1) |
1983 |
|
|
xc=xc*xc |
1984 |
|
|
co2exp(i,j,k,3,1)=xc*xc |
1985 |
|
|
|
1986 |
|
|
xc=co2exp(i,j,k,3,1)*co2exp(i,j,k,3,1) |
1987 |
|
|
xc=xc*xc |
1988 |
|
|
co2exp(i,j,k,4,1)=xc*xc |
1989 |
|
|
|
1990 |
|
|
xc=co2exp(i,j,k,4,1)*co2exp(i,j,k,4,1) |
1991 |
|
|
xc=xc*xc |
1992 |
|
|
co2exp(i,j,k,5,1)=xc*xc |
1993 |
|
|
|
1994 |
|
|
xc=co2exp(i,j,k,5,1)*co2exp(i,j,k,5,1) |
1995 |
|
|
xc=xc*xc |
1996 |
|
|
co2exp(i,j,k,6,1)=xc*xc |
1997 |
|
|
|
1998 |
|
|
c-----compute the scaled co2 amount from eq. (27) for band-center |
1999 |
|
|
c region (sub-band 3b). |
2000 |
|
|
|
2001 |
|
|
xc = dco2(i,j,k)*(pa(i,j,k)/30.0)**0.85 |
2002 |
|
|
1 *(1.+(0.0042+2.00e-5*dt(i,j,k))*dt(i,j,k)) |
2003 |
|
|
|
2004 |
|
|
co2exp(i,j,k,1,2)=exp(-xc*2.656e-3) |
2005 |
|
|
|
2006 |
|
|
xc=co2exp(i,j,k,1,2)*co2exp(i,j,k,1,2) |
2007 |
|
|
xc=xc*xc |
2008 |
|
|
co2exp(i,j,k,2,2)=xc*xc |
2009 |
|
|
|
2010 |
|
|
xc=co2exp(i,j,k,2,2)*co2exp(i,j,k,2,2) |
2011 |
|
|
xc=xc*xc |
2012 |
|
|
co2exp(i,j,k,3,2)=xc*xc |
2013 |
|
|
|
2014 |
|
|
xc=co2exp(i,j,k,3,2)*co2exp(i,j,k,3,2) |
2015 |
|
|
xc=xc*xc |
2016 |
|
|
co2exp(i,j,k,4,2)=xc*xc |
2017 |
|
|
|
2018 |
|
|
xc=co2exp(i,j,k,4,2)*co2exp(i,j,k,4,2) |
2019 |
|
|
xc=xc*xc |
2020 |
|
|
co2exp(i,j,k,5,2)=xc*xc |
2021 |
|
|
|
2022 |
|
|
xc=co2exp(i,j,k,5,2)*co2exp(i,j,k,5,2) |
2023 |
|
|
xc=xc*xc |
2024 |
|
|
co2exp(i,j,k,6,2)=xc*xc |
2025 |
|
|
|
2026 |
|
|
enddo |
2027 |
|
|
enddo |
2028 |
|
|
enddo |
2029 |
|
|
|
2030 |
|
|
return |
2031 |
|
|
end |
2032 |
|
|
c********************************************************************** |
2033 |
|
|
subroutine n2oexps(ib,m,n,np,dn2o,pa,dt,n2oexp) |
2034 |
|
|
c********************************************************************** |
2035 |
|
|
c compute n2o exponentials for individual layers. |
2036 |
|
|
c |
2037 |
|
|
c---- input parameters |
2038 |
|
|
c spectral band (ib) |
2039 |
|
|
c number of grid intervals in zonal direction (m) |
2040 |
|
|
c number of grid intervals in meridional direction (n) |
2041 |
|
|
c number of layers (np) |
2042 |
|
|
c layer n2o amount (dn2o) |
2043 |
|
|
c layer pressure (pa) |
2044 |
|
|
c layer temperature minus 250K (dt) |
2045 |
|
|
c |
2046 |
|
|
c---- output parameters |
2047 |
|
|
c 2 or 4 exponentials for each layer (n2oexp) |
2048 |
|
|
c********************************************************************** |
2049 |
|
|
implicit none |
2050 |
|
|
integer ib,m,n,np,i,j,k |
2051 |
|
|
|
2052 |
|
|
c---- input parameters ----- |
2053 |
|
|
|
2054 |
|
|
real dn2o(m,n,np),pa(m,n,np),dt(m,n,np) |
2055 |
|
|
|
2056 |
|
|
c---- output parameters ----- |
2057 |
|
|
|
2058 |
|
|
real n2oexp(m,n,np,4) |
2059 |
|
|
|
2060 |
|
|
c---- temporary arrays ----- |
2061 |
|
|
|
2062 |
|
|
real xc,xc1,xc2 |
2063 |
|
|
|
2064 |
|
|
c********************************************************************** |
2065 |
|
|
|
2066 |
|
|
do k=1,np |
2067 |
|
|
do j=1,n |
2068 |
|
|
do i=1,m |
2069 |
|
|
|
2070 |
|
|
c-----four exponential by powers of 21 for band 6 |
2071 |
|
|
|
2072 |
|
|
if (ib.eq.6) then |
2073 |
|
|
|
2074 |
|
|
xc=dn2o(i,j,k)*(1.+(1.9297e-3+4.3750e-6*dt(i,j,k))*dt(i,j,k)) |
2075 |
|
|
n2oexp(i,j,k,1)=exp(-xc*6.31582e-2) |
2076 |
|
|
|
2077 |
|
|
xc=n2oexp(i,j,k,1)*n2oexp(i,j,k,1)*n2oexp(i,j,k,1) |
2078 |
|
|
xc1=xc*xc |
2079 |
|
|
xc2=xc1*xc1 |
2080 |
|
|
n2oexp(i,j,k,2)=xc*xc1*xc2 |
2081 |
|
|
|
2082 |
|
|
c-----four exponential by powers of 8 for band 7 |
2083 |
|
|
|
2084 |
|
|
else |
2085 |
|
|
|
2086 |
|
|
xc=dn2o(i,j,k)*(pa(i,j,k)/500.0)**0.48 |
2087 |
|
|
* *(1.+(1.3804e-3+7.4838e-6*dt(i,j,k))*dt(i,j,k)) |
2088 |
|
|
n2oexp(i,j,k,1)=exp(-xc*5.35779e-2) |
2089 |
|
|
|
2090 |
|
|
xc=n2oexp(i,j,k,1)*n2oexp(i,j,k,1) |
2091 |
|
|
xc=xc*xc |
2092 |
|
|
n2oexp(i,j,k,2)=xc*xc |
2093 |
|
|
xc=n2oexp(i,j,k,2)*n2oexp(i,j,k,2) |
2094 |
|
|
xc=xc*xc |
2095 |
|
|
n2oexp(i,j,k,3)=xc*xc |
2096 |
|
|
xc=n2oexp(i,j,k,3)*n2oexp(i,j,k,3) |
2097 |
|
|
xc=xc*xc |
2098 |
|
|
n2oexp(i,j,k,4)=xc*xc |
2099 |
|
|
|
2100 |
|
|
endif |
2101 |
|
|
|
2102 |
|
|
enddo |
2103 |
|
|
enddo |
2104 |
|
|
enddo |
2105 |
|
|
|
2106 |
|
|
return |
2107 |
|
|
end |
2108 |
|
|
c********************************************************************** |
2109 |
|
|
subroutine ch4exps(ib,m,n,np,dch4,pa,dt,ch4exp) |
2110 |
|
|
c********************************************************************** |
2111 |
|
|
c compute ch4 exponentials for individual layers. |
2112 |
|
|
c |
2113 |
|
|
c---- input parameters |
2114 |
|
|
c spectral band (ib) |
2115 |
|
|
c number of grid intervals in zonal direction (m) |
2116 |
|
|
c number of grid intervals in meridional direction (n) |
2117 |
|
|
c number of layers (np) |
2118 |
|
|
c layer ch4 amount (dch4) |
2119 |
|
|
c layer pressure (pa) |
2120 |
|
|
c layer temperature minus 250K (dt) |
2121 |
|
|
c |
2122 |
|
|
c---- output parameters |
2123 |
|
|
c 1 or 4 exponentials for each layer (ch4exp) |
2124 |
|
|
c********************************************************************** |
2125 |
|
|
implicit none |
2126 |
|
|
integer ib,m,n,np,i,j,k |
2127 |
|
|
|
2128 |
|
|
c---- input parameters ----- |
2129 |
|
|
|
2130 |
|
|
real dch4(m,n,np),pa(m,n,np),dt(m,n,np) |
2131 |
|
|
|
2132 |
|
|
c---- output parameters ----- |
2133 |
|
|
|
2134 |
|
|
real ch4exp(m,n,np,4) |
2135 |
|
|
|
2136 |
|
|
c---- temporary arrays ----- |
2137 |
|
|
|
2138 |
|
|
real xc |
2139 |
|
|
|
2140 |
|
|
c********************************************************************** |
2141 |
|
|
|
2142 |
|
|
do k=1,np |
2143 |
|
|
do j=1,n |
2144 |
|
|
do i=1,m |
2145 |
|
|
|
2146 |
|
|
c-----four exponentials for band 6 |
2147 |
|
|
|
2148 |
|
|
if (ib.eq.6) then |
2149 |
|
|
|
2150 |
|
|
xc=dch4(i,j,k)*(1.+(1.7007e-2+1.5826e-4*dt(i,j,k))*dt(i,j,k)) |
2151 |
|
|
ch4exp(i,j,k,1)=exp(-xc*5.80708e-3) |
2152 |
|
|
|
2153 |
|
|
c-----four exponentials by powers of 12 for band 7 |
2154 |
|
|
|
2155 |
|
|
else |
2156 |
|
|
|
2157 |
|
|
xc=dch4(i,j,k)*(pa(i,j,k)/500.0)**0.65 |
2158 |
|
|
* *(1.+(5.9590e-4-2.2931e-6*dt(i,j,k))*dt(i,j,k)) |
2159 |
|
|
ch4exp(i,j,k,1)=exp(-xc*6.29247e-2) |
2160 |
|
|
|
2161 |
|
|
xc=ch4exp(i,j,k,1)*ch4exp(i,j,k,1)*ch4exp(i,j,k,1) |
2162 |
|
|
xc=xc*xc |
2163 |
|
|
ch4exp(i,j,k,2)=xc*xc |
2164 |
|
|
|
2165 |
|
|
xc=ch4exp(i,j,k,2)*ch4exp(i,j,k,2)*ch4exp(i,j,k,2) |
2166 |
|
|
xc=xc*xc |
2167 |
|
|
ch4exp(i,j,k,3)=xc*xc |
2168 |
|
|
|
2169 |
|
|
xc=ch4exp(i,j,k,3)*ch4exp(i,j,k,3)*ch4exp(i,j,k,3) |
2170 |
|
|
xc=xc*xc |
2171 |
|
|
ch4exp(i,j,k,4)=xc*xc |
2172 |
|
|
|
2173 |
|
|
endif |
2174 |
|
|
|
2175 |
|
|
enddo |
2176 |
|
|
enddo |
2177 |
|
|
enddo |
2178 |
|
|
|
2179 |
|
|
return |
2180 |
|
|
end |
2181 |
|
|
c********************************************************************** |
2182 |
|
|
subroutine comexps(ib,m,n,np,dcom,dt,comexp) |
2183 |
|
|
c********************************************************************** |
2184 |
|
|
c compute co2-minor exponentials for individual layers. |
2185 |
|
|
c |
2186 |
|
|
c---- input parameters |
2187 |
|
|
c spectral band (ib) |
2188 |
|
|
c number of grid intervals in zonal direction (m) |
2189 |
|
|
c number of grid intervals in meridional direction (n) |
2190 |
|
|
c number of layers (np) |
2191 |
|
|
c layer co2 amount (dcom) |
2192 |
|
|
c layer temperature minus 250K (dt) |
2193 |
|
|
c |
2194 |
|
|
c---- output parameters |
2195 |
|
|
c 2 exponentials for each layer (comexp) |
2196 |
|
|
c********************************************************************** |
2197 |
|
|
implicit none |
2198 |
|
|
integer ib,m,n,np,i,j,k |
2199 |
|
|
|
2200 |
|
|
c---- input parameters ----- |
2201 |
|
|
|
2202 |
|
|
real dcom(m,n,np),dt(m,n,np) |
2203 |
|
|
|
2204 |
|
|
c---- output parameters ----- |
2205 |
|
|
|
2206 |
|
|
real comexp(m,n,np,2) |
2207 |
|
|
|
2208 |
|
|
c---- temporary arrays ----- |
2209 |
|
|
|
2210 |
|
|
real xc,xc1,xc2 |
2211 |
|
|
|
2212 |
|
|
c********************************************************************** |
2213 |
|
|
|
2214 |
|
|
do k=1,np |
2215 |
|
|
do j=1,n |
2216 |
|
|
do i=1,m |
2217 |
|
|
|
2218 |
|
|
c-----two exponentials by powers of 60 for band 4 |
2219 |
|
|
|
2220 |
|
|
if (ib.eq.4) then |
2221 |
|
|
|
2222 |
|
|
xc=dcom(i,j,k)*(1.+(3.5775e-2+4.0447e-4*dt(i,j,k))*dt(i,j,k)) |
2223 |
|
|
comexp(i,j,k,1)=exp(-xc*2.18947e-5) |
2224 |
|
|
|
2225 |
|
|
xc=comexp(i,j,k,1)*comexp(i,j,k,1)*comexp(i,j,k,1) |
2226 |
|
|
xc=xc*xc |
2227 |
|
|
xc1=xc*xc |
2228 |
|
|
xc=xc1*xc1 |
2229 |
|
|
xc=xc*xc |
2230 |
|
|
comexp(i,j,k,2)=xc*xc1 |
2231 |
|
|
|
2232 |
|
|
c-----two exponentials by powers of 44 for band 5 |
2233 |
|
|
|
2234 |
|
|
else |
2235 |
|
|
|
2236 |
|
|
xc=dcom(i,j,k)*(1.+(3.4268e-2+3.7401e-4*dt(i,j,k))*dt(i,j,k)) |
2237 |
|
|
comexp(i,j,k,1)=exp(-xc*4.74570e-5) |
2238 |
|
|
|
2239 |
|
|
xc=comexp(i,j,k,1)*comexp(i,j,k,1) |
2240 |
|
|
xc1=xc*xc |
2241 |
|
|
xc2=xc1*xc1 |
2242 |
|
|
xc=xc2*xc2 |
2243 |
|
|
xc=xc*xc |
2244 |
|
|
comexp(i,j,k,2)=xc1*xc2*xc |
2245 |
|
|
|
2246 |
|
|
endif |
2247 |
|
|
|
2248 |
|
|
enddo |
2249 |
|
|
enddo |
2250 |
|
|
enddo |
2251 |
|
|
|
2252 |
|
|
return |
2253 |
|
|
end |
2254 |
|
|
c********************************************************************** |
2255 |
|
|
subroutine cfcexps(ib,m,n,np,a1,b1,fk1,a2,b2,fk2,dcfc,dt,cfcexp) |
2256 |
|
|
c********************************************************************** |
2257 |
|
|
c compute cfc(-11, -12, -22) exponentials for individual layers. |
2258 |
|
|
c |
2259 |
|
|
c---- input parameters |
2260 |
|
|
c spectral band (ib) |
2261 |
|
|
c number of grid intervals in zonal direction (m) |
2262 |
|
|
c number of grid intervals in meridional direction (n) |
2263 |
|
|
c number of layers (np) |
2264 |
|
|
c parameters for computing the scaled cfc amounts |
2265 |
|
|
c for temperature scaling (a1,b1,a2,b2) |
2266 |
|
|
c the absorption coefficients for the |
2267 |
|
|
c first k-distribution function due to cfcs (fk1,fk2) |
2268 |
|
|
c layer cfc amounts (dcfc) |
2269 |
|
|
c layer temperature minus 250K (dt) |
2270 |
|
|
c |
2271 |
|
|
c---- output parameters |
2272 |
|
|
c 1 exponential for each layer (cfcexp) |
2273 |
|
|
c********************************************************************** |
2274 |
|
|
implicit none |
2275 |
|
|
integer ib,m,n,np,i,j,k |
2276 |
|
|
|
2277 |
|
|
c---- input parameters ----- |
2278 |
|
|
|
2279 |
|
|
real dcfc(m,n,np),dt(m,n,np) |
2280 |
|
|
|
2281 |
|
|
c---- output parameters ----- |
2282 |
|
|
|
2283 |
|
|
real cfcexp(m,n,np) |
2284 |
|
|
|
2285 |
|
|
c---- static data ----- |
2286 |
|
|
|
2287 |
|
|
real a1,b1,fk1,a2,b2,fk2 |
2288 |
|
|
|
2289 |
|
|
c---- temporary arrays ----- |
2290 |
|
|
|
2291 |
|
|
real xf |
2292 |
|
|
|
2293 |
|
|
c********************************************************************** |
2294 |
|
|
|
2295 |
|
|
do k=1,np |
2296 |
|
|
do j=1,n |
2297 |
|
|
do i=1,m |
2298 |
|
|
|
2299 |
|
|
c-----compute the scaled cfc amount (xf) and exponential (cfcexp) |
2300 |
|
|
|
2301 |
|
|
if (ib.eq.4) then |
2302 |
|
|
xf=dcfc(i,j,k)*(1.+(a1+b1*dt(i,j,k))*dt(i,j,k)) |
2303 |
|
|
cfcexp(i,j,k)=exp(-xf*fk1) |
2304 |
|
|
else |
2305 |
|
|
xf=dcfc(i,j,k)*(1.+(a2+b2*dt(i,j,k))*dt(i,j,k)) |
2306 |
|
|
cfcexp(i,j,k)=exp(-xf*fk2) |
2307 |
|
|
endif |
2308 |
|
|
|
2309 |
|
|
enddo |
2310 |
|
|
enddo |
2311 |
|
|
enddo |
2312 |
|
|
|
2313 |
|
|
return |
2314 |
|
|
end |
2315 |
|
|
c********************************************************************** |
2316 |
|
|
subroutine b10exps(m,n,np,dh2o,dcont,dco2,dn2o,pa,dt |
2317 |
|
|
* ,h2oexp,conexp,co2exp,n2oexp) |
2318 |
|
|
c********************************************************************** |
2319 |
|
|
c compute band3a exponentials for individual layers. |
2320 |
|
|
c |
2321 |
|
|
c---- input parameters |
2322 |
|
|
c number of grid intervals in zonal direction (m) |
2323 |
|
|
c number of grid intervals in meridional direction (n) |
2324 |
|
|
c number of layers (np) |
2325 |
|
|
c layer h2o amount for line absorption (dh2o) |
2326 |
|
|
c layer h2o amount for continuum absorption (dcont) |
2327 |
|
|
c layer co2 amount (dco2) |
2328 |
|
|
c layer n2o amount (dn2o) |
2329 |
|
|
c layer pressure (pa) |
2330 |
|
|
c layer temperature minus 250K (dt) |
2331 |
|
|
c |
2332 |
|
|
c---- output parameters |
2333 |
|
|
c |
2334 |
|
|
c exponentials for each layer (h2oexp,conexp,co2exp,n2oexp) |
2335 |
|
|
c********************************************************************** |
2336 |
|
|
implicit none |
2337 |
|
|
integer m,n,np,i,j,k |
2338 |
|
|
|
2339 |
|
|
c---- input parameters ----- |
2340 |
|
|
|
2341 |
|
|
real dh2o(m,n,np),dcont(m,n,np),dn2o(m,n,np) |
2342 |
|
|
real dco2(m,n,np),pa(m,n,np),dt(m,n,np) |
2343 |
|
|
|
2344 |
|
|
c---- output parameters ----- |
2345 |
|
|
|
2346 |
|
|
real h2oexp(m,n,np,6),conexp(m,n,np,3),co2exp(m,n,np,6,2) |
2347 |
|
|
* ,n2oexp(m,n,np,4) |
2348 |
|
|
|
2349 |
|
|
c---- temporary arrays ----- |
2350 |
|
|
|
2351 |
|
|
real xx,xx1,xx2,xx3 |
2352 |
|
|
|
2353 |
|
|
c********************************************************************** |
2354 |
|
|
|
2355 |
|
|
do k=1,np |
2356 |
|
|
do j=1,n |
2357 |
|
|
do i=1,m |
2358 |
|
|
|
2359 |
|
|
c-----compute the scaled h2o-line amount for the sub-band 3a |
2360 |
|
|
c table 3, Chou et al. (JAS, 1993) |
2361 |
|
|
|
2362 |
|
|
xx=dh2o(i,j,k)*(pa(i,j,k)/500.0) |
2363 |
|
|
1 *(1.+(0.0149+6.20e-5*dt(i,j,k))*dt(i,j,k)) |
2364 |
|
|
|
2365 |
|
|
c-----six exponentials by powers of 8 |
2366 |
|
|
c the constant 0.10624 is equal to 1.66*0.064 |
2367 |
|
|
|
2368 |
|
|
h2oexp(i,j,k,1)=exp(-xx*0.10624) |
2369 |
|
|
|
2370 |
|
|
xx=h2oexp(i,j,k,1)*h2oexp(i,j,k,1) |
2371 |
|
|
xx=xx*xx |
2372 |
|
|
h2oexp(i,j,k,2)=xx*xx |
2373 |
|
|
|
2374 |
|
|
xx=h2oexp(i,j,k,2)*h2oexp(i,j,k,2) |
2375 |
|
|
xx=xx*xx |
2376 |
|
|
h2oexp(i,j,k,3)=xx*xx |
2377 |
|
|
|
2378 |
|
|
xx=h2oexp(i,j,k,3)*h2oexp(i,j,k,3) |
2379 |
|
|
xx=xx*xx |
2380 |
|
|
h2oexp(i,j,k,4)=xx*xx |
2381 |
|
|
|
2382 |
|
|
xx=h2oexp(i,j,k,4)*h2oexp(i,j,k,4) |
2383 |
|
|
xx=xx*xx |
2384 |
|
|
h2oexp(i,j,k,5)=xx*xx |
2385 |
|
|
|
2386 |
|
|
xx=h2oexp(i,j,k,5)*h2oexp(i,j,k,5) |
2387 |
|
|
xx=xx*xx |
2388 |
|
|
h2oexp(i,j,k,6)=xx*xx |
2389 |
|
|
|
2390 |
|
|
c-----compute the scaled co2 amount for the sub-band 3a |
2391 |
|
|
c table 1, Chou et al. (JAS, 1993) |
2392 |
|
|
|
2393 |
|
|
xx=dco2(i,j,k)*(pa(i,j,k)/300.0)**0.5 |
2394 |
|
|
1 *(1.+(0.0179+1.02e-4*dt(i,j,k))*dt(i,j,k)) |
2395 |
|
|
|
2396 |
|
|
c-----six exponentials by powers of 8 |
2397 |
|
|
c the constant 2.656e-5 is equal to 1.66*1.60e-5 |
2398 |
|
|
|
2399 |
|
|
co2exp(i,j,k,1,1)=exp(-xx*2.656e-5) |
2400 |
|
|
|
2401 |
|
|
xx=co2exp(i,j,k,1,1)*co2exp(i,j,k,1,1) |
2402 |
|
|
xx=xx*xx |
2403 |
|
|
co2exp(i,j,k,2,1)=xx*xx |
2404 |
|
|
|
2405 |
|
|
xx=co2exp(i,j,k,2,1)*co2exp(i,j,k,2,1) |
2406 |
|
|
xx=xx*xx |
2407 |
|
|
co2exp(i,j,k,3,1)=xx*xx |
2408 |
|
|
|
2409 |
|
|
xx=co2exp(i,j,k,3,1)*co2exp(i,j,k,3,1) |
2410 |
|
|
xx=xx*xx |
2411 |
|
|
co2exp(i,j,k,4,1)=xx*xx |
2412 |
|
|
|
2413 |
|
|
xx=co2exp(i,j,k,4,1)*co2exp(i,j,k,4,1) |
2414 |
|
|
xx=xx*xx |
2415 |
|
|
co2exp(i,j,k,5,1)=xx*xx |
2416 |
|
|
|
2417 |
|
|
xx=co2exp(i,j,k,5,1)*co2exp(i,j,k,5,1) |
2418 |
|
|
xx=xx*xx |
2419 |
|
|
co2exp(i,j,k,6,1)=xx*xx |
2420 |
|
|
|
2421 |
|
|
c-----one exponential of h2o continuum for sub-band 3a |
2422 |
|
|
c tabl 5 of Chou et. al. (JAS, 1993) |
2423 |
|
|
c the constant 1.04995e+2 is equal to 1.66*63.25 |
2424 |
|
|
|
2425 |
|
|
conexp(i,j,k,1)=exp(-dcont(i,j,k)*1.04995e+2) |
2426 |
|
|
|
2427 |
|
|
c-----compute the scaled n2o amount for sub-band 3a |
2428 |
|
|
|
2429 |
|
|
xx=dn2o(i,j,k)*(1.+(1.4476e-3+3.6656e-6*dt(i,j,k))*dt(i,j,k)) |
2430 |
|
|
|
2431 |
|
|
c-----two exponential2 by powers of 58 |
2432 |
|
|
|
2433 |
|
|
n2oexp(i,j,k,1)=exp(-xx*0.25238) |
2434 |
|
|
|
2435 |
|
|
xx=n2oexp(i,j,k,1)*n2oexp(i,j,k,1) |
2436 |
|
|
xx1=xx*xx |
2437 |
|
|
xx1=xx1*xx1 |
2438 |
|
|
xx2=xx1*xx1 |
2439 |
|
|
xx3=xx2*xx2 |
2440 |
|
|
n2oexp(i,j,k,2)=xx*xx1*xx2*xx3 |
2441 |
|
|
|
2442 |
|
|
enddo |
2443 |
|
|
enddo |
2444 |
|
|
enddo |
2445 |
|
|
|
2446 |
|
|
return |
2447 |
|
|
end |
2448 |
|
|
c********************************************************************** |
2449 |
|
|
subroutine tablup(k1,k2,m,n,np,nx,nh,nt,sabs,spre,stem,w1,p1, |
2450 |
|
|
* dwe,dpe,coef1,coef2,coef3,tran) |
2451 |
|
|
c********************************************************************** |
2452 |
|
|
c compute water vapor, co2 and o3 transmittances between levels |
2453 |
|
|
c k1 and k2 for m x n soundings, using table look-up. |
2454 |
|
|
c |
2455 |
|
|
c calculations follow Eq. (40) of Chou and Suarez (1994) |
2456 |
|
|
c |
2457 |
|
|
c---- input --------------------- |
2458 |
|
|
c indices for pressure levels (k1 and k2) |
2459 |
|
|
c number of grid intervals in zonal direction (m) |
2460 |
|
|
c number of grid intervals in meridional direction (n) |
2461 |
|
|
c number of atmospheric layers (np) |
2462 |
|
|
c number of pressure intervals in the table (nx) |
2463 |
|
|
c number of absorber amount intervals in the table (nh) |
2464 |
|
|
c number of tables copied (nt) |
2465 |
|
|
c column-integrated absorber amount (sabs) |
2466 |
|
|
c column absorber amount-weighted pressure (spre) |
2467 |
|
|
c column absorber amount-weighted temperature (stem) |
2468 |
|
|
c first value of absorber amount (log10) in the table (w1) |
2469 |
|
|
c first value of pressure (log10) in the table (p1) |
2470 |
|
|
c size of the interval of absorber amount (log10) in the table (dwe) |
2471 |
|
|
c size of the interval of pressure (log10) in the table (dpe) |
2472 |
|
|
c pre-computed coefficients (coef1, coef2, and coef3) |
2473 |
|
|
c |
2474 |
|
|
c---- updated --------------------- |
2475 |
|
|
c transmittance (tran) |
2476 |
|
|
c |
2477 |
|
|
c Note: |
2478 |
|
|
c (1) units of sabs are g/cm**2 for water vapor and |
2479 |
|
|
c (cm-atm)stp for co2 and o3. |
2480 |
|
|
c (2) units of spre and stem are, respectively, mb and K. |
2481 |
|
|
c (3) there are nt identical copies of the tables (coef1, coef2, and |
2482 |
|
|
c coef3). the prupose of using the multiple copies of tables is |
2483 |
|
|
c to increase the speed in parallel (vectorized) computations. |
2484 |
|
|
C if such advantage does not exist, nt can be set to 1. |
2485 |
|
|
c |
2486 |
|
|
c********************************************************************** |
2487 |
|
|
implicit none |
2488 |
|
|
integer k1,k2,m,n,np,nx,nh,nt,i,j |
2489 |
|
|
|
2490 |
|
|
c---- input parameters ----- |
2491 |
|
|
|
2492 |
|
|
real w1,p1,dwe,dpe |
2493 |
|
|
real sabs(m,n,np+1),spre(m,n,np+1),stem(m,n,np+1) |
2494 |
|
|
real coef1(nx,nh,nt),coef2(nx,nh,nt),coef3(nx,nh,nt) |
2495 |
|
|
|
2496 |
|
|
c---- update parameter ----- |
2497 |
|
|
|
2498 |
|
|
real tran(m,n) |
2499 |
|
|
|
2500 |
|
|
c---- temporary variables ----- |
2501 |
|
|
|
2502 |
|
|
real x1,x2,x3,we,pe,fw,fp,pa,pb,pc,ax,ba,bb,t1,ca,cb,t2 |
2503 |
|
|
integer iw,ip,nn |
2504 |
|
|
|
2505 |
|
|
c********************************************************************** |
2506 |
|
|
|
2507 |
|
|
do j=1,n |
2508 |
|
|
do i=1,m |
2509 |
|
|
|
2510 |
|
|
nn=mod(i,nt)+1 |
2511 |
|
|
|
2512 |
|
|
x1=sabs(i,j,k2)-sabs(i,j,k1) |
2513 |
|
|
x2=(spre(i,j,k2)-spre(i,j,k1))/x1 |
2514 |
|
|
x3=(stem(i,j,k2)-stem(i,j,k1))/x1 |
2515 |
|
|
|
2516 |
|
|
we=(log10(x1)-w1)/dwe |
2517 |
|
|
pe=(log10(x2)-p1)/dpe |
2518 |
|
|
|
2519 |
|
|
we=max(we,w1-2.*dwe) |
2520 |
|
|
pe=max(pe,p1) |
2521 |
|
|
|
2522 |
|
|
iw=int(we+1.5) |
2523 |
|
|
ip=int(pe+1.5) |
2524 |
|
|
|
2525 |
|
|
iw=min(iw,nh-1) |
2526 |
|
|
iw=max(iw, 2) |
2527 |
|
|
|
2528 |
|
|
ip=min(ip,nx-1) |
2529 |
|
|
ip=max(ip, 1) |
2530 |
|
|
|
2531 |
|
|
fw=we-float(iw-1) |
2532 |
|
|
fp=pe-float(ip-1) |
2533 |
|
|
|
2534 |
|
|
c-----linear interpolation in pressure |
2535 |
|
|
|
2536 |
|
|
pa = coef1(ip,iw-1,nn)*(1.-fp)+coef1(ip+1,iw-1,nn)*fp |
2537 |
|
|
pb = coef1(ip,iw, nn)*(1.-fp)+coef1(ip+1,iw, nn)*fp |
2538 |
|
|
pc = coef1(ip,iw+1,nn)*(1.-fp)+coef1(ip+1,iw+1,nn)*fp |
2539 |
|
|
|
2540 |
|
|
c-----quadratic interpolation in absorber amount for coef1 |
2541 |
|
|
|
2542 |
|
|
ax = (-pa*(1.-fw)+pc*(1.+fw)) *fw*0.5 + pb*(1.-fw*fw) |
2543 |
|
|
|
2544 |
|
|
c-----linear interpolation in absorber amount for coef2 and coef3 |
2545 |
|
|
|
2546 |
|
|
ba = coef2(ip,iw, nn)*(1.-fp)+coef2(ip+1,iw, nn)*fp |
2547 |
|
|
bb = coef2(ip,iw+1,nn)*(1.-fp)+coef2(ip+1,iw+1,nn)*fp |
2548 |
|
|
t1 = ba*(1.-fw) + bb*fw |
2549 |
|
|
|
2550 |
|
|
ca = coef3(ip,iw, nn)*(1.-fp)+coef3(ip+1,iw, nn)*fp |
2551 |
|
|
cb = coef3(ip,iw+1,nn)*(1.-fp)+coef3(ip+1,iw+1,nn)*fp |
2552 |
|
|
t2 = ca*(1.-fw) + cb*fw |
2553 |
|
|
|
2554 |
|
|
c-----update the total transmittance between levels k1 and k2 |
2555 |
|
|
|
2556 |
|
|
tran(i,j)= (ax + (t1+t2*x3) * x3)*tran(i,j) |
2557 |
|
|
|
2558 |
|
|
enddo |
2559 |
|
|
enddo |
2560 |
|
|
|
2561 |
|
|
return |
2562 |
|
|
end |
2563 |
|
|
c********************************************************************** |
2564 |
|
|
subroutine h2okdis(ib,m,n,np,k,fkw,gkw,ne,h2oexp,conexp, |
2565 |
|
|
* th2o,tcon,tran) |
2566 |
|
|
c********************************************************************** |
2567 |
|
|
c compute water vapor transmittance between levels k1 and k2 for |
2568 |
|
|
c m x n soundings, using the k-distribution method. |
2569 |
|
|
c |
2570 |
|
|
c computations follow eqs. (34), (46), (50) and (52). |
2571 |
|
|
c |
2572 |
|
|
c---- input parameters |
2573 |
|
|
c spectral band (ib) |
2574 |
|
|
c number of grid intervals in zonal direction (m) |
2575 |
|
|
c number of grid intervals in meridional direction (n) |
2576 |
|
|
c number of levels (np) |
2577 |
|
|
c current level (k) |
2578 |
|
|
c planck-weighted k-distribution function due to |
2579 |
|
|
c h2o line absorption (fkw) |
2580 |
|
|
c planck-weighted k-distribution function due to |
2581 |
|
|
c h2o continuum absorption (gkw) |
2582 |
|
|
c number of terms used in each band to compute water vapor |
2583 |
|
|
c continuum transmittance (ne) |
2584 |
|
|
c exponentials for line absorption (h2oexp) |
2585 |
|
|
c exponentials for continuum absorption (conexp) |
2586 |
|
|
c |
2587 |
|
|
c---- updated parameters |
2588 |
|
|
c transmittance between levels k1 and k2 due to |
2589 |
|
|
c water vapor line absorption (th2o) |
2590 |
|
|
c transmittance between levels k1 and k2 due to |
2591 |
|
|
c water vapor continuum absorption (tcon) |
2592 |
|
|
c total transmittance (tran) |
2593 |
|
|
c |
2594 |
|
|
c********************************************************************** |
2595 |
|
|
implicit none |
2596 |
|
|
integer ib,m,n,np,k,i,j |
2597 |
|
|
|
2598 |
|
|
c---- input parameters ------ |
2599 |
|
|
|
2600 |
|
|
real conexp(m,n,np,3),h2oexp(m,n,np,6) |
2601 |
|
|
integer ne(9) |
2602 |
|
|
real fkw(6,9),gkw(6,3) |
2603 |
|
|
|
2604 |
|
|
c---- updated parameters ----- |
2605 |
|
|
|
2606 |
|
|
real th2o(m,n,6),tcon(m,n,3),tran(m,n) |
2607 |
|
|
|
2608 |
|
|
c---- temporary arrays ----- |
2609 |
|
|
|
2610 |
|
|
real trnth2o |
2611 |
|
|
|
2612 |
|
|
c-----tco2 are the six exp factors between levels k1 and k2 |
2613 |
|
|
c tran is the updated total transmittance between levels k1 and k2 |
2614 |
|
|
|
2615 |
|
|
c-----th2o is the 6 exp factors between levels k1 and k2 due to |
2616 |
|
|
c h2o line absorption. |
2617 |
|
|
|
2618 |
|
|
c-----tcon is the 3 exp factors between levels k1 and k2 due to |
2619 |
|
|
c h2o continuum absorption. |
2620 |
|
|
|
2621 |
|
|
c-----trnth2o is the total transmittance between levels k1 and k2 due |
2622 |
|
|
c to both line and continuum absorption computed from eq. (52). |
2623 |
|
|
|
2624 |
|
|
do j=1,n |
2625 |
|
|
do i=1,m |
2626 |
|
|
th2o(i,j,1) = th2o(i,j,1)*h2oexp(i,j,k,1) |
2627 |
|
|
th2o(i,j,2) = th2o(i,j,2)*h2oexp(i,j,k,2) |
2628 |
|
|
th2o(i,j,3) = th2o(i,j,3)*h2oexp(i,j,k,3) |
2629 |
|
|
th2o(i,j,4) = th2o(i,j,4)*h2oexp(i,j,k,4) |
2630 |
|
|
th2o(i,j,5) = th2o(i,j,5)*h2oexp(i,j,k,5) |
2631 |
|
|
th2o(i,j,6) = th2o(i,j,6)*h2oexp(i,j,k,6) |
2632 |
|
|
enddo |
2633 |
|
|
enddo |
2634 |
|
|
|
2635 |
|
|
if (ne(ib).eq.0) then |
2636 |
|
|
|
2637 |
|
|
do j=1,n |
2638 |
|
|
do i=1,m |
2639 |
|
|
|
2640 |
|
|
trnth2o =(fkw(1,ib)*th2o(i,j,1) |
2641 |
|
|
* + fkw(2,ib)*th2o(i,j,2) |
2642 |
|
|
* + fkw(3,ib)*th2o(i,j,3) |
2643 |
|
|
* + fkw(4,ib)*th2o(i,j,4) |
2644 |
|
|
* + fkw(5,ib)*th2o(i,j,5) |
2645 |
|
|
* + fkw(6,ib)*th2o(i,j,6)) |
2646 |
|
|
|
2647 |
|
|
tran(i,j)=tran(i,j)*trnth2o |
2648 |
|
|
|
2649 |
|
|
enddo |
2650 |
|
|
enddo |
2651 |
|
|
|
2652 |
|
|
elseif (ne(ib).eq.1) then |
2653 |
|
|
|
2654 |
|
|
do j=1,n |
2655 |
|
|
do i=1,m |
2656 |
|
|
|
2657 |
|
|
tcon(i,j,1)= tcon(i,j,1)*conexp(i,j,k,1) |
2658 |
|
|
|
2659 |
|
|
trnth2o =(fkw(1,ib)*th2o(i,j,1) |
2660 |
|
|
* + fkw(2,ib)*th2o(i,j,2) |
2661 |
|
|
* + fkw(3,ib)*th2o(i,j,3) |
2662 |
|
|
* + fkw(4,ib)*th2o(i,j,4) |
2663 |
|
|
* + fkw(5,ib)*th2o(i,j,5) |
2664 |
|
|
* + fkw(6,ib)*th2o(i,j,6))*tcon(i,j,1) |
2665 |
|
|
|
2666 |
|
|
tran(i,j)=tran(i,j)*trnth2o |
2667 |
|
|
|
2668 |
|
|
enddo |
2669 |
|
|
enddo |
2670 |
|
|
|
2671 |
|
|
else |
2672 |
|
|
|
2673 |
|
|
do j=1,n |
2674 |
|
|
do i=1,m |
2675 |
|
|
|
2676 |
|
|
tcon(i,j,1)= tcon(i,j,1)*conexp(i,j,k,1) |
2677 |
|
|
tcon(i,j,2)= tcon(i,j,2)*conexp(i,j,k,2) |
2678 |
|
|
tcon(i,j,3)= tcon(i,j,3)*conexp(i,j,k,3) |
2679 |
|
|
|
2680 |
|
|
|
2681 |
|
|
trnth2o = ( gkw(1,1)*th2o(i,j,1) |
2682 |
|
|
* + gkw(2,1)*th2o(i,j,2) |
2683 |
|
|
* + gkw(3,1)*th2o(i,j,3) |
2684 |
|
|
* + gkw(4,1)*th2o(i,j,4) |
2685 |
|
|
* + gkw(5,1)*th2o(i,j,5) |
2686 |
|
|
* + gkw(6,1)*th2o(i,j,6) ) * tcon(i,j,1) |
2687 |
|
|
* + ( gkw(1,2)*th2o(i,j,1) |
2688 |
|
|
* + gkw(2,2)*th2o(i,j,2) |
2689 |
|
|
* + gkw(3,2)*th2o(i,j,3) |
2690 |
|
|
* + gkw(4,2)*th2o(i,j,4) |
2691 |
|
|
* + gkw(5,2)*th2o(i,j,5) |
2692 |
|
|
* + gkw(6,2)*th2o(i,j,6) ) * tcon(i,j,2) |
2693 |
|
|
* + ( gkw(1,3)*th2o(i,j,1) |
2694 |
|
|
* + gkw(2,3)*th2o(i,j,2) |
2695 |
|
|
* + gkw(3,3)*th2o(i,j,3) |
2696 |
|
|
* + gkw(4,3)*th2o(i,j,4) |
2697 |
|
|
* + gkw(5,3)*th2o(i,j,5) |
2698 |
|
|
* + gkw(6,3)*th2o(i,j,6) ) * tcon(i,j,3) |
2699 |
|
|
|
2700 |
|
|
tran(i,j)=tran(i,j)*trnth2o |
2701 |
|
|
|
2702 |
|
|
enddo |
2703 |
|
|
enddo |
2704 |
|
|
|
2705 |
|
|
endif |
2706 |
|
|
|
2707 |
|
|
return |
2708 |
|
|
end |
2709 |
|
|
c********************************************************************** |
2710 |
|
|
subroutine co2kdis(m,n,np,k,co2exp,tco2,tran) |
2711 |
|
|
c********************************************************************** |
2712 |
|
|
c compute co2 transmittances between levels k1 and k2 for |
2713 |
|
|
c m x n soundings, using the k-distribution method with linear |
2714 |
|
|
c pressure scaling. computations follow eq. (34). |
2715 |
|
|
c |
2716 |
|
|
c---- input parameters |
2717 |
|
|
c number of grid intervals in zonal direction (m) |
2718 |
|
|
c number of grid intervals in meridional direction (n) |
2719 |
|
|
c number of levels (np) |
2720 |
|
|
c current level (k) |
2721 |
|
|
c exponentials for co2 absorption (co2exp) |
2722 |
|
|
c |
2723 |
|
|
c---- updated parameters |
2724 |
|
|
c transmittance between levels k1 and k2 due to co2 absorption |
2725 |
|
|
c for the various values of the absorption coefficient (tco2) |
2726 |
|
|
c total transmittance (tran) |
2727 |
|
|
c |
2728 |
|
|
c********************************************************************** |
2729 |
|
|
implicit none |
2730 |
|
|
integer m,n,np,k,i,j |
2731 |
|
|
|
2732 |
|
|
c---- input parameters ----- |
2733 |
|
|
|
2734 |
|
|
real co2exp(m,n,np,6,2) |
2735 |
|
|
|
2736 |
|
|
c---- updated parameters ----- |
2737 |
|
|
|
2738 |
|
|
real tco2(m,n,6,2),tran(m,n) |
2739 |
|
|
|
2740 |
|
|
c---- temporary arrays ----- |
2741 |
|
|
|
2742 |
|
|
real xc |
2743 |
|
|
|
2744 |
|
|
c-----tco2 is the 6 exp factors between levels k1 and k2. |
2745 |
|
|
c xc is the total co2 transmittance given by eq. (53). |
2746 |
|
|
|
2747 |
|
|
do j=1,n |
2748 |
|
|
do i=1,m |
2749 |
|
|
|
2750 |
|
|
c-----band-wings |
2751 |
|
|
|
2752 |
|
|
tco2(i,j,1,1)=tco2(i,j,1,1)*co2exp(i,j,k,1,1) |
2753 |
|
|
xc= 0.1395 *tco2(i,j,1,1) |
2754 |
|
|
|
2755 |
|
|
tco2(i,j,2,1)=tco2(i,j,2,1)*co2exp(i,j,k,2,1) |
2756 |
|
|
xc=xc+0.1407 *tco2(i,j,2,1) |
2757 |
|
|
|
2758 |
|
|
tco2(i,j,3,1)=tco2(i,j,3,1)*co2exp(i,j,k,3,1) |
2759 |
|
|
xc=xc+0.1549 *tco2(i,j,3,1) |
2760 |
|
|
|
2761 |
|
|
tco2(i,j,4,1)=tco2(i,j,4,1)*co2exp(i,j,k,4,1) |
2762 |
|
|
xc=xc+0.1357 *tco2(i,j,4,1) |
2763 |
|
|
|
2764 |
|
|
tco2(i,j,5,1)=tco2(i,j,5,1)*co2exp(i,j,k,5,1) |
2765 |
|
|
xc=xc+0.0182 *tco2(i,j,5,1) |
2766 |
|
|
|
2767 |
|
|
tco2(i,j,6,1)=tco2(i,j,6,1)*co2exp(i,j,k,6,1) |
2768 |
|
|
xc=xc+0.0220 *tco2(i,j,6,1) |
2769 |
|
|
|
2770 |
|
|
c-----band-center region |
2771 |
|
|
|
2772 |
|
|
tco2(i,j,1,2)=tco2(i,j,1,2)*co2exp(i,j,k,1,2) |
2773 |
|
|
xc=xc+0.0766 *tco2(i,j,1,2) |
2774 |
|
|
|
2775 |
|
|
tco2(i,j,2,2)=tco2(i,j,2,2)*co2exp(i,j,k,2,2) |
2776 |
|
|
xc=xc+0.1372 *tco2(i,j,2,2) |
2777 |
|
|
|
2778 |
|
|
tco2(i,j,3,2)=tco2(i,j,3,2)*co2exp(i,j,k,3,2) |
2779 |
|
|
xc=xc+0.1189 *tco2(i,j,3,2) |
2780 |
|
|
|
2781 |
|
|
tco2(i,j,4,2)=tco2(i,j,4,2)*co2exp(i,j,k,4,2) |
2782 |
|
|
xc=xc+0.0335 *tco2(i,j,4,2) |
2783 |
|
|
|
2784 |
|
|
tco2(i,j,5,2)=tco2(i,j,5,2)*co2exp(i,j,k,5,2) |
2785 |
|
|
xc=xc+0.0169 *tco2(i,j,5,2) |
2786 |
|
|
|
2787 |
|
|
tco2(i,j,6,2)=tco2(i,j,6,2)*co2exp(i,j,k,6,2) |
2788 |
|
|
xc=xc+0.0059 *tco2(i,j,6,2) |
2789 |
|
|
|
2790 |
|
|
tran(i,j)=tran(i,j)*xc |
2791 |
|
|
|
2792 |
|
|
enddo |
2793 |
|
|
enddo |
2794 |
|
|
|
2795 |
|
|
return |
2796 |
|
|
end |
2797 |
|
|
c********************************************************************** |
2798 |
|
|
subroutine n2okdis(ib,m,n,np,k,n2oexp,tn2o,tran) |
2799 |
|
|
c********************************************************************** |
2800 |
|
|
c compute n2o transmittances between levels k1 and k2 for |
2801 |
|
|
c m x n soundings, using the k-distribution method with linear |
2802 |
|
|
c pressure scaling. |
2803 |
|
|
c |
2804 |
|
|
c---- input parameters |
2805 |
|
|
c spectral band (ib) |
2806 |
|
|
c number of grid intervals in zonal direction (m) |
2807 |
|
|
c number of grid intervals in meridional direction (n) |
2808 |
|
|
c number of levels (np) |
2809 |
|
|
c current level (k) |
2810 |
|
|
c exponentials for n2o absorption (n2oexp) |
2811 |
|
|
c |
2812 |
|
|
c---- updated parameters |
2813 |
|
|
c transmittance between levels k1 and k2 due to n2o absorption |
2814 |
|
|
c for the various values of the absorption coefficient (tn2o) |
2815 |
|
|
c total transmittance (tran) |
2816 |
|
|
c |
2817 |
|
|
c********************************************************************** |
2818 |
|
|
implicit none |
2819 |
|
|
integer ib,m,n,np,k,i,j |
2820 |
|
|
|
2821 |
|
|
c---- input parameters ----- |
2822 |
|
|
|
2823 |
|
|
real n2oexp(m,n,np,4) |
2824 |
|
|
|
2825 |
|
|
c---- updated parameters ----- |
2826 |
|
|
|
2827 |
|
|
real tn2o(m,n,4),tran(m,n) |
2828 |
|
|
|
2829 |
|
|
c---- temporary arrays ----- |
2830 |
|
|
|
2831 |
|
|
real xc |
2832 |
|
|
|
2833 |
|
|
c-----tn2o is the 2 exp factors between levels k1 and k2. |
2834 |
|
|
c xc is the total n2o transmittance |
2835 |
|
|
|
2836 |
|
|
do j=1,n |
2837 |
|
|
do i=1,m |
2838 |
|
|
|
2839 |
|
|
c-----band 6 |
2840 |
|
|
|
2841 |
|
|
if (ib.eq.6) then |
2842 |
|
|
|
2843 |
|
|
tn2o(i,j,1)=tn2o(i,j,1)*n2oexp(i,j,k,1) |
2844 |
|
|
xc= 0.940414*tn2o(i,j,1) |
2845 |
|
|
|
2846 |
|
|
tn2o(i,j,2)=tn2o(i,j,2)*n2oexp(i,j,k,2) |
2847 |
|
|
xc=xc+0.059586*tn2o(i,j,2) |
2848 |
|
|
|
2849 |
|
|
c-----band 7 |
2850 |
|
|
|
2851 |
|
|
else |
2852 |
|
|
|
2853 |
|
|
tn2o(i,j,1)=tn2o(i,j,1)*n2oexp(i,j,k,1) |
2854 |
|
|
xc= 0.561961*tn2o(i,j,1) |
2855 |
|
|
|
2856 |
|
|
tn2o(i,j,2)=tn2o(i,j,2)*n2oexp(i,j,k,2) |
2857 |
|
|
xc=xc+0.138707*tn2o(i,j,2) |
2858 |
|
|
|
2859 |
|
|
tn2o(i,j,3)=tn2o(i,j,3)*n2oexp(i,j,k,3) |
2860 |
|
|
xc=xc+0.240670*tn2o(i,j,3) |
2861 |
|
|
|
2862 |
|
|
tn2o(i,j,4)=tn2o(i,j,4)*n2oexp(i,j,k,4) |
2863 |
|
|
xc=xc+0.058662*tn2o(i,j,4) |
2864 |
|
|
|
2865 |
|
|
endif |
2866 |
|
|
|
2867 |
|
|
tran(i,j)=tran(i,j)*xc |
2868 |
|
|
|
2869 |
|
|
enddo |
2870 |
|
|
enddo |
2871 |
|
|
|
2872 |
|
|
return |
2873 |
|
|
end |
2874 |
|
|
c********************************************************************** |
2875 |
|
|
subroutine ch4kdis(ib,m,n,np,k,ch4exp,tch4,tran) |
2876 |
|
|
c********************************************************************** |
2877 |
|
|
c compute ch4 transmittances between levels k1 and k2 for |
2878 |
|
|
c m x n soundings, using the k-distribution method with |
2879 |
|
|
c linear pressure scaling. |
2880 |
|
|
c |
2881 |
|
|
c---- input parameters |
2882 |
|
|
c spectral band (ib) |
2883 |
|
|
c number of grid intervals in zonal direction (m) |
2884 |
|
|
c number of grid intervals in meridional direction (n) |
2885 |
|
|
c number of levels (np) |
2886 |
|
|
c current level (k) |
2887 |
|
|
c exponentials for ch4 absorption (ch4exp) |
2888 |
|
|
c |
2889 |
|
|
c---- updated parameters |
2890 |
|
|
c transmittance between levels k1 and k2 due to ch4 absorption |
2891 |
|
|
c for the various values of the absorption coefficient (tch4) |
2892 |
|
|
c total transmittance (tran) |
2893 |
|
|
c |
2894 |
|
|
c********************************************************************** |
2895 |
|
|
implicit none |
2896 |
|
|
integer ib,m,n,np,k,i,j |
2897 |
|
|
|
2898 |
|
|
c---- input parameters ----- |
2899 |
|
|
|
2900 |
|
|
real ch4exp(m,n,np,4) |
2901 |
|
|
|
2902 |
|
|
c---- updated parameters ----- |
2903 |
|
|
|
2904 |
|
|
real tch4(m,n,4),tran(m,n) |
2905 |
|
|
|
2906 |
|
|
c---- temporary arrays ----- |
2907 |
|
|
|
2908 |
|
|
real xc |
2909 |
|
|
|
2910 |
|
|
c-----tch4 is the 2 exp factors between levels k1 and k2. |
2911 |
|
|
c xc is the total ch4 transmittance |
2912 |
|
|
|
2913 |
|
|
do j=1,n |
2914 |
|
|
do i=1,m |
2915 |
|
|
|
2916 |
|
|
c-----band 6 |
2917 |
|
|
|
2918 |
|
|
if (ib.eq.6) then |
2919 |
|
|
|
2920 |
|
|
tch4(i,j,1)=tch4(i,j,1)*ch4exp(i,j,k,1) |
2921 |
|
|
xc= tch4(i,j,1) |
2922 |
|
|
|
2923 |
|
|
c-----band 7 |
2924 |
|
|
|
2925 |
|
|
else |
2926 |
|
|
|
2927 |
|
|
tch4(i,j,1)=tch4(i,j,1)*ch4exp(i,j,k,1) |
2928 |
|
|
xc= 0.610650*tch4(i,j,1) |
2929 |
|
|
|
2930 |
|
|
tch4(i,j,2)=tch4(i,j,2)*ch4exp(i,j,k,2) |
2931 |
|
|
xc=xc+0.280212*tch4(i,j,2) |
2932 |
|
|
|
2933 |
|
|
tch4(i,j,3)=tch4(i,j,3)*ch4exp(i,j,k,3) |
2934 |
|
|
xc=xc+0.107349*tch4(i,j,3) |
2935 |
|
|
|
2936 |
|
|
tch4(i,j,4)=tch4(i,j,4)*ch4exp(i,j,k,4) |
2937 |
|
|
xc=xc+0.001789*tch4(i,j,4) |
2938 |
|
|
|
2939 |
|
|
endif |
2940 |
|
|
|
2941 |
|
|
tran(i,j)=tran(i,j)*xc |
2942 |
|
|
|
2943 |
|
|
enddo |
2944 |
|
|
enddo |
2945 |
|
|
|
2946 |
|
|
return |
2947 |
|
|
end |
2948 |
|
|
c********************************************************************** |
2949 |
|
|
subroutine comkdis(ib,m,n,np,k,comexp,tcom,tran) |
2950 |
|
|
c********************************************************************** |
2951 |
|
|
c compute co2-minor transmittances between levels k1 and k2 |
2952 |
|
|
c for m x n soundings, using the k-distribution method |
2953 |
|
|
c with linear pressure scaling. |
2954 |
|
|
c |
2955 |
|
|
c---- input parameters |
2956 |
|
|
c spectral band (ib) |
2957 |
|
|
c number of grid intervals in zonal direction (m) |
2958 |
|
|
c number of grid intervals in meridional direction (n) |
2959 |
|
|
c number of levels (np) |
2960 |
|
|
c current level (k) |
2961 |
|
|
c exponentials for co2-minor absorption (comexp) |
2962 |
|
|
c |
2963 |
|
|
c---- updated parameters |
2964 |
|
|
c transmittance between levels k1 and k2 due to co2-minor absorption |
2965 |
|
|
c for the various values of the absorption coefficient (tcom) |
2966 |
|
|
c total transmittance (tran) |
2967 |
|
|
c |
2968 |
|
|
c********************************************************************** |
2969 |
|
|
implicit none |
2970 |
|
|
integer ib,m,n,np,k,i,j |
2971 |
|
|
|
2972 |
|
|
c---- input parameters ----- |
2973 |
|
|
|
2974 |
|
|
real comexp(m,n,np,2) |
2975 |
|
|
|
2976 |
|
|
c---- updated parameters ----- |
2977 |
|
|
|
2978 |
|
|
real tcom(m,n,2),tran(m,n) |
2979 |
|
|
|
2980 |
|
|
c---- temporary arrays ----- |
2981 |
|
|
|
2982 |
|
|
real xc |
2983 |
|
|
|
2984 |
|
|
c-----tcom is the 2 exp factors between levels k1 and k2. |
2985 |
|
|
c xc is the total co2-minor transmittance |
2986 |
|
|
|
2987 |
|
|
do j=1,n |
2988 |
|
|
do i=1,m |
2989 |
|
|
|
2990 |
|
|
c-----band 4 |
2991 |
|
|
|
2992 |
|
|
if (ib.eq.4) then |
2993 |
|
|
|
2994 |
|
|
tcom(i,j,1)=tcom(i,j,1)*comexp(i,j,k,1) |
2995 |
|
|
xc= 0.972025*tcom(i,j,1) |
2996 |
|
|
tcom(i,j,2)=tcom(i,j,2)*comexp(i,j,k,2) |
2997 |
|
|
xc=xc+0.027975*tcom(i,j,2) |
2998 |
|
|
|
2999 |
|
|
c-----band 5 |
3000 |
|
|
|
3001 |
|
|
else |
3002 |
|
|
|
3003 |
|
|
tcom(i,j,1)=tcom(i,j,1)*comexp(i,j,k,1) |
3004 |
|
|
xc= 0.961324*tcom(i,j,1) |
3005 |
|
|
tcom(i,j,2)=tcom(i,j,2)*comexp(i,j,k,2) |
3006 |
|
|
xc=xc+0.038676*tcom(i,j,2) |
3007 |
|
|
|
3008 |
|
|
endif |
3009 |
|
|
|
3010 |
|
|
tran(i,j)=tran(i,j)*xc |
3011 |
|
|
|
3012 |
|
|
enddo |
3013 |
|
|
enddo |
3014 |
|
|
|
3015 |
|
|
return |
3016 |
|
|
end |
3017 |
|
|
c********************************************************************** |
3018 |
|
|
subroutine cfckdis(m,n,np,k,cfcexp,tcfc,tran) |
3019 |
|
|
c********************************************************************** |
3020 |
|
|
c compute cfc-(11,12,22) transmittances between levels k1 and k2 |
3021 |
|
|
c for m x n soundings, using the k-distribution method with |
3022 |
|
|
c linear pressure scaling. |
3023 |
|
|
c |
3024 |
|
|
c---- input parameters |
3025 |
|
|
c number of grid intervals in zonal direction (m) |
3026 |
|
|
c number of grid intervals in meridional direction (n) |
3027 |
|
|
c number of levels (np) |
3028 |
|
|
c current level (k) |
3029 |
|
|
c exponentials for cfc absorption (cfcexp) |
3030 |
|
|
c |
3031 |
|
|
c---- updated parameters |
3032 |
|
|
c transmittance between levels k1 and k2 due to cfc absorption |
3033 |
|
|
c for the various values of the absorption coefficient (tcfc) |
3034 |
|
|
c total transmittance (tran) |
3035 |
|
|
c |
3036 |
|
|
c********************************************************************** |
3037 |
|
|
implicit none |
3038 |
|
|
integer m,n,np,k,i,j |
3039 |
|
|
|
3040 |
|
|
c---- input parameters ----- |
3041 |
|
|
|
3042 |
|
|
real cfcexp(m,n,np) |
3043 |
|
|
|
3044 |
|
|
c---- updated parameters ----- |
3045 |
|
|
|
3046 |
|
|
real tcfc(m,n),tran(m,n) |
3047 |
|
|
|
3048 |
|
|
c-----tcfc is the exp factors between levels k1 and k2. |
3049 |
|
|
|
3050 |
|
|
do j=1,n |
3051 |
|
|
do i=1,m |
3052 |
|
|
|
3053 |
|
|
tcfc(i,j)=tcfc(i,j)*cfcexp(i,j,k) |
3054 |
|
|
tran(i,j)=tran(i,j)*tcfc(i,j) |
3055 |
|
|
|
3056 |
|
|
enddo |
3057 |
|
|
enddo |
3058 |
|
|
|
3059 |
|
|
return |
3060 |
|
|
end |
3061 |
|
|
c********************************************************************** |
3062 |
|
|
subroutine b10kdis(m,n,np,k,h2oexp,conexp,co2exp,n2oexp |
3063 |
|
|
* ,th2o,tcon,tco2,tn2o,tran) |
3064 |
|
|
c********************************************************************** |
3065 |
|
|
c |
3066 |
|
|
c compute h2o (line and continuum),co2,n2o transmittances between |
3067 |
|
|
c levels k1 and k2 for m x n soundings, using the k-distribution |
3068 |
|
|
c method with linear pressure scaling. |
3069 |
|
|
c |
3070 |
|
|
c---- input parameters |
3071 |
|
|
c number of grid intervals in zonal direction (m) |
3072 |
|
|
c number of grid intervals in meridional direction (n) |
3073 |
|
|
c number of levels (np) |
3074 |
|
|
c current level (k) |
3075 |
|
|
c exponentials for h2o line absorption (h2oexp) |
3076 |
|
|
c exponentials for h2o continuum absorption (conexp) |
3077 |
|
|
c exponentials for co2 absorption (co2exp) |
3078 |
|
|
c exponentials for n2o absorption (n2oexp) |
3079 |
|
|
c |
3080 |
|
|
c---- updated parameters |
3081 |
|
|
c transmittance between levels k1 and k2 due to h2o line absorption |
3082 |
|
|
c for the various values of the absorption coefficient (th2o) |
3083 |
|
|
c transmittance between levels k1 and k2 due to h2o continuum |
3084 |
|
|
c absorption for the various values of the absorption |
3085 |
|
|
c coefficient (tcon) |
3086 |
|
|
c transmittance between levels k1 and k2 due to co2 absorption |
3087 |
|
|
c for the various values of the absorption coefficient (tco2) |
3088 |
|
|
c transmittance between levels k1 and k2 due to n2o absorption |
3089 |
|
|
c for the various values of the absorption coefficient (tn2o) |
3090 |
|
|
c total transmittance (tran) |
3091 |
|
|
c |
3092 |
|
|
c********************************************************************** |
3093 |
|
|
implicit none |
3094 |
|
|
integer m,n,np,k,i,j |
3095 |
|
|
|
3096 |
|
|
c---- input parameters ----- |
3097 |
|
|
|
3098 |
|
|
real h2oexp(m,n,np,6),conexp(m,n,np,3),co2exp(m,n,np,6,2) |
3099 |
|
|
* ,n2oexp(m,n,np,4) |
3100 |
|
|
|
3101 |
|
|
c---- updated parameters ----- |
3102 |
|
|
|
3103 |
|
|
real th2o(m,n,6),tcon(m,n,3),tco2(m,n,6,2),tn2o(m,n,4) |
3104 |
|
|
* ,tran(m,n) |
3105 |
|
|
|
3106 |
|
|
c---- temporary arrays ----- |
3107 |
|
|
|
3108 |
|
|
real xx |
3109 |
|
|
|
3110 |
|
|
c-----initialize tran |
3111 |
|
|
|
3112 |
|
|
do j=1,n |
3113 |
|
|
do i=1,m |
3114 |
|
|
tran(i,j)=1.0 |
3115 |
|
|
enddo |
3116 |
|
|
enddo |
3117 |
|
|
|
3118 |
|
|
c-----for h2o line |
3119 |
|
|
|
3120 |
|
|
do j=1,n |
3121 |
|
|
do i=1,m |
3122 |
|
|
|
3123 |
|
|
th2o(i,j,1)=th2o(i,j,1)*h2oexp(i,j,k,1) |
3124 |
|
|
xx= 0.3153*th2o(i,j,1) |
3125 |
|
|
|
3126 |
|
|
th2o(i,j,2)=th2o(i,j,2)*h2oexp(i,j,k,2) |
3127 |
|
|
xx=xx+0.4604*th2o(i,j,2) |
3128 |
|
|
|
3129 |
|
|
th2o(i,j,3)=th2o(i,j,3)*h2oexp(i,j,k,3) |
3130 |
|
|
xx=xx+0.1326*th2o(i,j,3) |
3131 |
|
|
|
3132 |
|
|
th2o(i,j,4)=th2o(i,j,4)*h2oexp(i,j,k,4) |
3133 |
|
|
xx=xx+0.0798*th2o(i,j,4) |
3134 |
|
|
|
3135 |
|
|
th2o(i,j,5)=th2o(i,j,5)*h2oexp(i,j,k,5) |
3136 |
|
|
xx=xx+0.0119*th2o(i,j,5) |
3137 |
|
|
|
3138 |
|
|
tran(i,j)=tran(i,j)*xx |
3139 |
|
|
|
3140 |
|
|
enddo |
3141 |
|
|
enddo |
3142 |
|
|
|
3143 |
|
|
c-----for h2o continuum |
3144 |
|
|
|
3145 |
|
|
do j=1,n |
3146 |
|
|
do i=1,m |
3147 |
|
|
|
3148 |
|
|
tcon(i,j,1)=tcon(i,j,1)*conexp(i,j,k,1) |
3149 |
|
|
tran(i,j)=tran(i,j)*tcon(i,j,1) |
3150 |
|
|
|
3151 |
|
|
enddo |
3152 |
|
|
enddo |
3153 |
|
|
|
3154 |
|
|
c-----for co2 |
3155 |
|
|
|
3156 |
|
|
do j=1,n |
3157 |
|
|
do i=1,m |
3158 |
|
|
|
3159 |
|
|
tco2(i,j,1,1)=tco2(i,j,1,1)*co2exp(i,j,k,1,1) |
3160 |
|
|
xx= 0.2673*tco2(i,j,1,1) |
3161 |
|
|
|
3162 |
|
|
tco2(i,j,2,1)=tco2(i,j,2,1)*co2exp(i,j,k,2,1) |
3163 |
|
|
xx=xx+ 0.2201*tco2(i,j,2,1) |
3164 |
|
|
|
3165 |
|
|
tco2(i,j,3,1)=tco2(i,j,3,1)*co2exp(i,j,k,3,1) |
3166 |
|
|
xx=xx+ 0.2106*tco2(i,j,3,1) |
3167 |
|
|
|
3168 |
|
|
tco2(i,j,4,1)=tco2(i,j,4,1)*co2exp(i,j,k,4,1) |
3169 |
|
|
xx=xx+ 0.2409*tco2(i,j,4,1) |
3170 |
|
|
|
3171 |
|
|
tco2(i,j,5,1)=tco2(i,j,5,1)*co2exp(i,j,k,5,1) |
3172 |
|
|
xx=xx+ 0.0196*tco2(i,j,5,1) |
3173 |
|
|
|
3174 |
|
|
tco2(i,j,6,1)=tco2(i,j,6,1)*co2exp(i,j,k,6,1) |
3175 |
|
|
xx=xx+ 0.0415*tco2(i,j,6,1) |
3176 |
|
|
|
3177 |
|
|
tran(i,j)=tran(i,j)*xx |
3178 |
|
|
|
3179 |
|
|
enddo |
3180 |
|
|
enddo |
3181 |
|
|
|
3182 |
|
|
c-----for n2o |
3183 |
|
|
|
3184 |
|
|
do j=1,n |
3185 |
|
|
do i=1,m |
3186 |
|
|
|
3187 |
|
|
tn2o(i,j,1)=tn2o(i,j,1)*n2oexp(i,j,k,1) |
3188 |
|
|
xx= 0.970831*tn2o(i,j,1) |
3189 |
|
|
|
3190 |
|
|
tn2o(i,j,2)=tn2o(i,j,2)*n2oexp(i,j,k,2) |
3191 |
|
|
xx=xx+0.029169*tn2o(i,j,2) |
3192 |
|
|
|
3193 |
|
|
tran(i,j)=tran(i,j)*(xx-1.0) |
3194 |
|
|
|
3195 |
|
|
enddo |
3196 |
|
|
enddo |
3197 |
|
|
|
3198 |
|
|
return |
3199 |
|
|
end |