/[lmdze]/trunk/dyn3d/nxgrad.f
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Contents of /trunk/dyn3d/nxgrad.f

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Revision 65 - (show annotations)
Thu Sep 20 09:57:03 2012 UTC (11 years, 7 months ago) by guez
Original Path: trunk/libf/dyn3d/nxgrad.f
File size: 1285 byte(s)
Removed unused procedure "divgrad".

In procedure "dissip", save memory by using intermediary arrays "gdx"
and "gdy" several times instead of additional array "grx" and "gry".

In procedure "inidissip", write "dtdiss * teta*" instead of "teta*".

In "comvert", change name of s_sampling from "LMD5" to "tropo" and
from "strato2" to "strato".

1 !
2 ! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/nxgrad.F,v 1.1.1.1 2004/05/19 12:53:05 lmdzadmin Exp $
3 !
4 SUBROUTINE nxgrad (klevel, rot, x, y )
5 c
6 c P. Le Van
7 c
8 c ********************************************************************
9 c calcul du gradient tourne de pi/2 du rotationnel du vect.v
10 c ********************************************************************
11 c rot est un argument d'entree pour le s-prog
12 c x et y sont des arguments de sortie pour le s-prog
13 c
14 use dimens_m
15 use paramet_m
16 use comgeom
17 IMPLICIT NONE
18 c
19 INTEGER, intent(in):: klevel
20 REAL rot( ip1jm,klevel ),x( ip1jmp1,klevel ),y(ip1jm,klevel )
21 INTEGER l,ij
22 c
23 c
24 DO 10 l = 1,klevel
25 c
26 DO 1 ij = 2, ip1jm
27 y( ij,l ) = ( rot( ij,l ) - rot( ij-1,l ) ) * cvsurcuv( ij )
28 1 CONTINUE
29 c
30 c ..... correction pour y ( 1,j,l ) ......
31 c
32 c .... y(1,j,l)= y(iip1,j,l) ....
33 CDIR$ IVDEP
34 DO 2 ij = 1, ip1jm, iip1
35 y( ij,l ) = y( ij +iim,l )
36 2 CONTINUE
37 c
38 DO 4 ij = iip2,ip1jm
39 x( ij,l ) = ( rot( ij,l ) - rot( ij -iip1,l ) ) * cusurcvu( ij )
40 4 CONTINUE
41 DO 6 ij = 1,iip1
42 x( ij ,l ) = 0.
43 x( ij +ip1jm,l ) = 0.
44 6 CONTINUE
45 c
46 10 CONTINUE
47 RETURN
48 END

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