source:
LMDZ4/tags/LMDZ4_V3_4/libf/dyn3dpar/nxgrad.F
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2176
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1 | ! |
2 | ! $Header$ |
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 | IMPLICIT NONE |
15 | c |
16 | #include "dimensions.h" |
17 | #include "paramet.h" |
18 | #include "comgeom.h" |
19 | INTEGER 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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