source: LMDZ6/trunk/libf/dyn3d_common/nxgrad.f90 @ 5246

Last change on this file since 5246 was 5246, checked in by abarral, 23 hours ago

Convert fixed-form to free-form sources .F -> .{f,F}90
(WIP: some .F remain, will be handled in subsequent commits)
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 1.1 KB
Line 
1!
2! $Header$
3!
4SUBROUTINE nxgrad (klevel, rot, x, y )
5  !
6  ! P. Le Van
7  !
8  !   ********************************************************************
9  !  calcul du gradient tourne de pi/2 du rotationnel du vect.v
10  !   ********************************************************************
11  !   rot          est un argument  d'entree pour le s-prog
12  !   x  et y    sont des arguments de sortie pour le s-prog
13  !
14  IMPLICIT NONE
15  !
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  !
23  !
24  DO l = 1,klevel
25  !
26  DO  ij = 2, ip1jm
27  y( ij,l ) = (  rot( ij,l ) - rot( ij-1,l )  ) * cvsurcuv( ij )
28  END DO
29  !
30  !    ..... correction pour  y ( 1,j,l )  ......
31  !
32  !    ....    y(1,j,l)= y(iip1,j,l) ....
33  !DIR$ IVDEP
34  DO  ij = 1, ip1jm, iip1
35  y( ij,l ) = y( ij +iim,l )
36  END DO
37  !
38  DO  ij = iip2,ip1jm
39  x( ij,l ) = (  rot( ij,l ) - rot( ij -iip1,l )  ) * cusurcvu( ij )
40  END DO
41  DO ij = 1,iip1
42  x(    ij    ,l ) = 0.
43  x( ij +ip1jm,l ) = 0.
44  END DO
45  !
46  END DO
47  RETURN
48END SUBROUTINE nxgrad
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