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guez |
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module radiornpb_m |
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IMPLICIT none |
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contains |
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function radiornpb(tr_seri, pdtphys, tautr) |
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! From phylmd/radiornpb.F, v 1.2 2005/05/25 13:10:09 |
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! Auteurs: AA + CG (LGGE/CNRS) Date 24-06-94 |
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! Objet: Decroissance radioactive d'un traceur dans l'atmosphere |
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!G 24 06 94 : Pour un traceur, le radon |
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!G 16 12 94 : Plus un 2eme traceur, le 210Pb. Le radon decroit en plomb. |
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! Le pas de temps "pdtphys" est supposé beaucoup plus petit que la |
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! constante de temps de décroissance. |
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use dimens_m, only: llm |
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use dimphy, only: klon, nbtr |
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guez |
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use nr_util, only: assert |
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guez |
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REAL, intent(in):: tr_seri(:, :, :), pdtphys, tautr(:) |
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real radiornpb(klon, llm, 2) |
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! Variable local to the procedure: |
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INTEGER it |
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!----------------------------------------------- |
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call assert(shape(tr_seri) == (/klon, llm, nbtr/), "radiornpb tr_seri") |
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call assert(size(tautr) == nbtr, "radiornpb tautr") |
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DO it = 1, 2 |
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IF (tautr(it) > 0.) THEN |
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radiornpb(:, :, it) = - tr_seri(:, :, it) * pdtphys / tautr(it) |
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ELSE |
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radiornpb(:, :, it) = 0. |
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END IF |
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END DO |
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!G161294 : Cas particulier radon 1 => plomb 2 |
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radiornpb(:, :, 2) = radiornpb(:, :, 2) - radiornpb(:, :, 1) |
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END function radiornpb |
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end module radiornpb_m |
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