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guez |
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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, g, gx, gy) |
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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):: g(ip1jmp1, klevel) |
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REAL, intent(out):: gx(ip1jmp1, klevel) , gy(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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gx(ij, l) = g(ij +1, l) - g(ij, l) |
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end DO |
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! correction pour gx(ip1, j, l) |
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! gx(iip1, j, l)= gx(1, j, l) |
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DO ij = iip1, ip1jmp1, iip1 |
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gx(ij, l) = gx(ij -iim, l) |
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end DO |
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DO ij = 1, ip1jm |
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gy(ij, l) = g(ij, l) - g(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 |
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