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module grad_m |
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IMPLICIT NONE |
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contains |
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SUBROUTINE grad(klevel, pg, pgx, pgy) |
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! From LMDZ4/libf/dyn3d/grad.F, version 1.1.1.1 2004/05/19 12:53:05 |
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! P. Le Van |
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! Calcul des composantes covariantes en x et y du gradient de g. |
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USE dimens_m, ONLY : iim |
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USE paramet_m, ONLY : iip1, ip1jm, ip1jmp1 |
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INTEGER, intent(in):: klevel |
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REAL, intent(in):: pg(ip1jmp1, klevel) |
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REAL, intent(out):: pgx(ip1jmp1, klevel) , pgy(ip1jm, klevel) |
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! Local: |
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INTEGER l, ij |
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!---------------------------------------------------------------- |
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DO l = 1, klevel |
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DO ij = 1, ip1jmp1 - 1 |
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pgx(ij, l) = pg(ij +1, l) - pg(ij, l) |
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end DO |
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! correction pour pgx(ip1, j, l) |
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! pgx(iip1, j, l)= pgx(1, j, l) |
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DO ij = iip1, ip1jmp1, iip1 |
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pgx(ij, l) = pgx(ij -iim, l) |
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end DO |
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DO ij = 1, ip1jm |
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pgy(ij, l) = pg(ij, l) - pg(ij +iip1, l) |
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end DO |
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end DO |
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END SUBROUTINE grad |
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end module grad_m |