source: trunk/LMDZ.COMMON/libf/dyn3d_common/nxgradst.F

Last change on this file was 1300, checked in by emillour, 10 years ago

Common dynamics:
Some updates to keep up with LMDZ5 Earth model evolution (up to LMDZ5 rev 1955).
Main change is the introduction of a "dyn3d_common" directory
to store files common to dyn3d and dyn3dpar.
See file "DOC/chantiers/commit_importants.log" for detailed list
of changes. These changes do not change results on test cases.
EM
File size: 1.1 KB
Line 
1!
2! $Header$
3!
4      SUBROUTINE nxgradst (klevel,rot, x, y )
5c
6      IMPLICIT NONE
7c     Auteur :  P. Le Van
8c
9c   ********************************************************************
10c      calcul du gradient tourne de pi/2 du rotationnel du vect.v
11c   ********************************************************************
12c       rot          est un argument  d'entree pour le s-prog
13c       x  et y    sont des arguments de sortie pour le s-prog
14c
15#include "dimensions.h"
16#include "paramet.h"
17#include "comgeom.h"
18
19      INTEGER klevel
20      REAL rot( ip1jm,klevel ),x( ip1jmp1,klevel ),y(ip1jm,klevel )
21      INTEGER l,ij
22c
23      DO 10 l = 1,klevel
24c
25      DO 1  ij = 2, ip1jm
26      y(ij,l)=( rot(ij,l) - rot(ij-1,l))
27   1  CONTINUE
28c
29c    ..... correction pour  y ( 1,j,l )  ......
30c
31c    ....    y(1,j,l)= y(iip1,j,l) ....
32
33      DO 2  ij = 1, ip1jm, iip1
34      y( ij,l ) = y( ij +iim,l )
35   2  CONTINUE
36c
37      DO 4  ij = iip2,ip1jm
38      x(ij,l)= rot(ij,l)-rot(ij-iip1,l)
39   4  CONTINUE
40      DO 6 ij = 1,iip1
41      x(    ij    ,l ) = 0.
42      x( ij +ip1jm,l ) = 0.
43   6  CONTINUE
44c
45  10  CONTINUE
46      RETURN
47      END
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