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module albsno_m |
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! From phylmd/interface_surf.F90, version 1.8 2005/05/25 13:10:09 |
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IMPLICIT none |
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contains |
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SUBROUTINE albsno(klon, knon, dtime, agesno, alb_neig_grid, precip_snow) |
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INTEGER klon, knon |
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REAL dtime |
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REAL, DIMENSION(klon):: alb_neig_grid, agesno, precip_snow |
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! Local: |
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INTEGER, PARAMETER :: nvm = 8 |
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REAL veget(klon, nvm) |
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INTEGER i, nv |
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REAL init(nvm), decay(nvm) |
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REAL as |
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DATA init /0.55, 0.14, 0.18, 0.29, 0.15, 0.15, 0.14, 0./ |
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DATA decay /0.30, 0.67, 0.63, 0.45, 0.40, 0.14, 0.06, 1./ |
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!------------------------------------------------------------------------ |
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veget = 0. |
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veget(:, 1) = 1. ! desert partout |
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DO i = 1, knon |
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alb_neig_grid(i) = 0.0 |
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ENDDO |
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DO nv = 1, nvm |
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DO i = 1, knon |
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as = init(nv)+decay(nv)*EXP(-agesno(i)/5.) |
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alb_neig_grid(i) = alb_neig_grid(i) + veget(i, nv)*as |
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ENDDO |
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ENDDO |
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!! modilation en fonction de l'age de la neige |
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DO i = 1, knon |
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agesno(i) = (agesno(i) + (1.-agesno(i)/50.)*dtime/86400.)& |
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& * EXP(-1.*MAX(0.0, precip_snow(i))*dtime/0.3) |
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agesno(i) = MAX(agesno(i), 0.0) |
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ENDDO |
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END SUBROUTINE albsno |
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end module albsno_m |
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