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module calbeta_m |
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IMPLICIT NONE |
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contains |
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SUBROUTINE calbeta(indice, snow, qsol, beta, vcal, vdif) |
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! Author: Z. X. Li (LMD/CNRS) |
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! Date: April 14th, 1994 |
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! Calcul de quelques paramètres pour appliquer la couche limite. |
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USE indicesol, ONLY: is_lic, is_oce, is_sic, is_ter |
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INTEGER, intent(in):: indice |
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REAL, intent(in):: snow(:) |
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REAL, intent(in):: qsol(:) ! (knon) |
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! column-density of water in soil, in kg m-2 |
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REAL, intent(out):: beta(:), vcal(:), vdif(:) ! (knon) |
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! Local: |
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REAL, PARAMETER:: tau_gl = 86400. * 5. |
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! temps de relaxation pour la glace de mer |
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REAL, PARAMETER:: max_eau_sol = 150. ! in kg m-2 |
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! Pour une épaisseur du sol de 15 cm : |
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REAL, PARAMETER:: calsol = 1. / (2.5578E6 * 0.15) |
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REAL, PARAMETER:: calsno = 1. / (2.3867E6 * 0.15) |
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REAL, PARAMETER:: calice = 1. / (5.1444E6 * 0.15) |
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!------------------------------------------------------------ |
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select case (indice) |
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case(is_oce) |
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beta = 1. |
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vcal = 0. |
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vdif = 0. |
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case (is_sic) |
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beta = 1. |
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vcal = merge(calsno, calice, snow > 0.) |
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vdif = 1. / tau_gl |
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case (is_ter) |
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beta = min(2. * qsol / max_eau_sol, 1.) |
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vcal = merge(calsno, calsol, snow > 0.) |
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vdif = 0. |
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case (is_lic) |
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beta = 1. |
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vcal = merge(calsno, calice, snow > 0.) |
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vdif = 0. |
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END select |
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END SUBROUTINE calbeta |
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end module calbeta_m |