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SUBROUTINE advnqx(q, qg, qd) |
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! Auteurs: Calcul des valeurs de q aux point u. |
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! -------------------------------------------------------------------- |
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USE dimensions |
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USE paramet_m |
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USE conf_gcm_m |
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IMPLICIT NONE |
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! Arguments: |
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! ---------- |
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REAL q(ip1jmp1, llm), qg(ip1jmp1, llm), qd(ip1jmp1, llm) |
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! Local |
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! --------- |
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INTEGER ij, l |
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REAL dxqu(ip1jmp1), zqu(ip1jmp1) |
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REAL zqmax(ip1jmp1), zqmin(ip1jmp1) |
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LOGICAL extremum(ip1jmp1) |
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INTEGER mode |
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SAVE mode |
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DATA mode/1/ |
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! calcul des pentes en u: |
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! ----------------------- |
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IF (mode==0) THEN |
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DO l = 1, llm |
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DO ij = 1, ip1jm |
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qd(ij, l) = q(ij, l) |
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qg(ij, l) = q(ij, l) |
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END DO |
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END DO |
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ELSE |
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DO l = 1, llm |
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DO ij = iip2, ip1jm - 1 |
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dxqu(ij) = q(ij+1, l) - q(ij, l) |
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zqu(ij) = 0.5*(q(ij+1,l)+q(ij,l)) |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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dxqu(ij) = dxqu(ij-iim) |
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zqu(ij) = zqu(ij-iim) |
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END DO |
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DO ij = iip2, ip1jm - 1 |
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zqu(ij) = zqu(ij) - dxqu(ij+1)/12. |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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zqu(ij) = zqu(ij-iim) |
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END DO |
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DO ij = iip2 + 1, ip1jm |
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zqu(ij) = zqu(ij) + dxqu(ij-1)/12. |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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zqu(ij-iim) = zqu(ij) |
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END DO |
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! calcul des valeurs max et min acceptees aux interfaces |
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DO ij = iip2, ip1jm - 1 |
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zqmax(ij) = max(q(ij+1,l), q(ij,l)) |
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zqmin(ij) = min(q(ij+1,l), q(ij,l)) |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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zqmax(ij) = zqmax(ij-iim) |
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zqmin(ij) = zqmin(ij-iim) |
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END DO |
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DO ij = iip2 + 1, ip1jm |
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extremum(ij) = dxqu(ij)*dxqu(ij-1) <= 0. |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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extremum(ij-iim) = extremum(ij) |
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END DO |
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DO ij = iip2, ip1jm |
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zqu(ij) = min(max(zqmin(ij),zqu(ij)), zqmax(ij)) |
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END DO |
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DO ij = iip2 + 1, ip1jm |
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IF (extremum(ij)) THEN |
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qg(ij, l) = q(ij, l) |
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qd(ij, l) = q(ij, l) |
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ELSE |
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qd(ij, l) = zqu(ij) |
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qg(ij, l) = zqu(ij-1) |
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END IF |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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qd(ij-iim, l) = qd(ij, l) |
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qg(ij-iim, l) = qg(ij, l) |
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END DO |
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GO TO 8888 |
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DO ij = iip2 + 1, ip1jm |
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IF (extremum(ij) .AND. .NOT. extremum(ij-1)) qd(ij-1, l) = q(ij, l) |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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qd(ij-iim, l) = qd(ij, l) |
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END DO |
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DO ij = iip2, ip1jm - 1 |
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IF (extremum(ij) .AND. .NOT. extremum(ij+1)) qg(ij+1, l) = q(ij, l) |
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END DO |
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DO ij = iip1 + iip1, ip1jm, iip1 |
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qg(ij, l) = qg(ij-iim, l) |
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END DO |
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8888 CONTINUE |
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END DO |
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END IF |
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RETURN |
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END SUBROUTINE advnqx |
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