!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer,
! version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms
!of the Environment Canada - Atmospheric Science and Technology License/Disclaimer
!version 3 or (at your option) any later version that should be found at:
!http://collaboration.cmc.ec.gc.ca/science/rpn.comm/license.html
!
!This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
!without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
!See the above mentioned License/Disclaimer for more details.
!You should have received a copy of the License/Disclaimer along with this software;
!if not, you can write to: EC-RPN COMM Group, 2121 TransCanada, suite 500, Dorval (Quebec),
!CANADA, H9P 1J3; or send e-mail to service.rpn@ec.gc.ca
!-------------------------------------- LICENCE END --------------------------------------
***S/P STRANUP - CALCULATION OF THE UPWARD SOLAR
*
#include "phy_macros_f.h"
subroutine stranup (refl, dp, o3, ib, ig, lev1, 1
1 il1, il2, ilg, lay, lev)
*
#include "impnone.cdk"
*
integer ilg, lay, lev, ib, ig, lev1, il1, il2, lev1m1, k, kp1, i
real tau, dtr
real refl(ilg,2,lev), dp(ilg,lay), o3(ilg,lay)
*
*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
*
*Object
*
* Calculation of the upward solar flux above 1 mb, no scattering
* effect is considered
*
*Arguments
*
* refl reflectivity
* tau optical depth
* dtr direct transmission function
* 1.6487213 diffusivity factor (Li, 2000 JAS p753)
*
*Implicites
*
#include "tracegases.cdk"
#include "bands.cdk"
*
**
lev1m1 = lev1 - 1
c
if (ib .eq. 1) then
c
if (ig .eq. 1) then
do 105 k = lev1m1, 1, - 1
kp1 = k + 1
do 100 i = il1, il2
tau = (cs1o3(ig) * o3(i,k) + cs1o21 * rmo2) *
1 dp(i,k)
dtr = exp( - 1.6487213 * tau)
refl(i,1,k) = refl(i,1,kp1) * dtr
refl(i,2,k) = refl(i,2,kp1) * dtr
100 continue
105 continue
c
else
do 115 k = lev1m1, 1, - 1
kp1 = k + 1
do 110 i = il1, il2
tau = cs1o3(ig) * o3(i,k) * dp(i,k)
dtr = exp( - 1.6487213 * tau)
refl(i,1,k) = refl(i,1,kp1) * dtr
refl(i,2,k) = refl(i,2,kp1) * dtr
110 continue
115 continue
c
endif
c
else
c
do 250 k = lev1m1, 1, - 1
kp1 = k + 1
do 200 i = il1, il2
refl(i,1,k) = refl(i,1,kp1)
refl(i,2,k) = refl(i,2,kp1)
200 continue
250 continue
c
endif
c
return
end