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!Environment Canada - Atmospheric Science and Technology License/Disclaimer,
! version 3; Last Modified: May 7, 2008.
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***S/P TLINE2 - OPTICAL DEPTH FOR TWO MIXED GASES
*
#include "phy_macros_f.h"
subroutine tline2 (taug, coef1, coef2, qq, o3, 9
1 ng2, dp, dip, dt, inpt,
2 lev1, gh, lc, il1, il2, ilg, lay, s2)
*
#include "impnone.cdk"
*
integer ilg, lay, lc, lev1, il1, il2, lay1, lay2
integer k, i, m, n, ng2
real x1, y1, x2, y2
real taug(ilg,lay), coef1(5,lc), coef2(5,lc), qq(ilg,lay),
1 o3(ilg,lay), dp(ilg,lay), dip(ilg,lay), dt(ilg,lay),
2 s2(ilg,lay)
integer inpt(ilg,lay)
logical gh
*
*Authors
*
* J. Li, M. Lazare, CCCMA, rt code for gcm4
* (Ref: J. Li, H. W. Barker, 2005:
* JAS Vol. 62, no. 2, pp. 286\226309)
* P. Vaillancourt, D. Talbot, RPN/CMC;
* adapted for CMC/RPN physics (May 2006)
*
*Revisions
*
* 001 M.Lazarre,K.Winger (Apr 08) - correct bug - lc now used for dimension of array and n as a variable integer
*
*Object
*
* The same as tline1, but with two mixed gases, one must be h2o
*
* taug gaseous optical depth
* qq input h2o mixing ratio for each layer
* o3 input another gas mixing ratio for each layer
* dp air mass path for a model layer (explained in raddriv)
* dip interpolation factor for pressure between two neighboring
* standard input data pressure levels
* dt layer temperature - 250 k
* inpt number of the level for the standard input data pressures
*
*Implicites
*
#include "tracegases.cdk"
*
**
if (gh) then
lay1 = 1
else
lay1 = lev1
endif
lay2 = lay
c
if (ng2 .eq. 2) then
do 200 k = lay1, lay2
do 200 i = il1, il2
s2(i,k) = o3(i,k)
200 continue
c
else if (ng2 .eq. 3) then
do 300 k = lay1, lay2
do 300 i = il1, il2
s2(i,k) = rmco2
300 continue
c
else if (ng2 .eq. 5) then
do 500 k = lay1, lay2
do 500 i = il1, il2
s2(i,k) = rmn2o
500 continue
c
else if (ng2 .eq. 6) then
do 600 k = lay1, lay2
do 600 i = il1, il2
s2(i,k) = rmo2
600 continue
endif
c
do 2000 k = lay1, lay2
if (inpt(1,k) .lt. 950) then
do 1000 i = il1, il2
m = inpt(i,k)
n = m + 1
x2 = coef1(1,n) + dt(i,k) * (coef1(2,n) + dt(i,k) *
1 (coef1(3,n) + dt(i,k) * (coef1(4,n) +
2 dt(i,k) * coef1(5,n))))
c
y2 = coef2(1,n) + dt(i,k) * (coef2(2,n) + dt(i,k) *
1 (coef2(3,n) + dt(i,k) * (coef2(4,n) +
2 dt(i,k) * coef2(5,n))))
if (m .gt. 0) then
x1 = coef1(1,m) + dt(i,k) * (coef1(2,m) + dt(i,k) *
1 (coef1(3,m) + dt(i,k) * (coef1(4,m) +
2 dt(i,k) * coef1(5,m))))
c
y1 = coef2(1,m) + dt(i,k) * (coef2(2,m) + dt(i,k) *
1 (coef2(3,m) + dt(i,k) * (coef2(4,m) +
2 dt(i,k) * coef2(5,m))))
else
x1 = 0.0
y1 = 0.0
endif
c
taug(i,k) = ( (x1 + (x2 - x1) * dip(i,k)) * qq(i,k) +
1 (y1 + (y2 - y1) * dip(i,k)) * s2(i,k) ) *
1 dp(i,k)
1000 continue
else
m = inpt(1,k) - 1000
n = m + 1
do 1500 i = il1, il2
x2 = coef1(1,n) + dt(i,k) * (coef1(2,n) + dt(i,k) *
1 (coef1(3,n) + dt(i,k) * (coef1(4,n) +
2 dt(i,k) * coef1(5,n))))
c
y2 = coef2(1,n) + dt(i,k) * (coef2(2,n) + dt(i,k) *
1 (coef2(3,n) + dt(i,k) * (coef2(4,n) +
2 dt(i,k) * coef2(5,n))))
if (m .gt. 0) then
x1 = coef1(1,m) + dt(i,k) * (coef1(2,m) + dt(i,k) *
1 (coef1(3,m) + dt(i,k) * (coef1(4,m) +
2 dt(i,k) * coef1(5,m))))
c
y1 = coef2(1,m) + dt(i,k) * (coef2(2,m) + dt(i,k) *
1 (coef2(3,m) + dt(i,k) * (coef2(4,m) +
2 dt(i,k) * coef2(5,m))))
else
x1 = 0.0
y1 = 0.0
endif
c
taug(i,k) = ( (x1 + (x2 - x1) * dip(i,k)) * qq(i,k) +
1 (y1 + (y2 - y1) * dip(i,k)) * s2(i,k) ) *
1 dp(i,k)
1500 continue
endif
2000 continue
c
return
end