8 |
|
|
9 |
! From LMDZ4/libf/dyn3d/tourpot.F, version 1.1.1.1 2004/05/19 12:53:06 |
! From LMDZ4/libf/dyn3d/tourpot.F, version 1.1.1.1 2004/05/19 12:53:06 |
10 |
|
|
11 |
! Auteur : P. Le Van |
! Author: P. Le Van |
12 |
! Objet : calcul du tourbillon potentiel |
! Objet : calcul du tourbillon potentiel |
13 |
|
|
14 |
USE dimens_m, ONLY: iim, jjm, llm |
USE dimens_m, ONLY: iim, jjm, llm |
15 |
USE paramet_m, ONLY: iip1, ip1jm, ip1jmp1 |
USE comgeom, ONLY: fext_2d |
|
USE comgeom, ONLY: fext |
|
16 |
use filtreg_m, only: filtreg |
use filtreg_m, only: filtreg |
17 |
|
|
18 |
REAL, intent(in):: vcov(ip1jm, llm), ucov(ip1jmp1, llm) |
REAL, intent(in):: vcov(:, :, :) ! (iim + 1, jjm, llm) |
19 |
REAL, intent(in):: massebxy(ip1jm, llm) |
REAL, intent(in):: ucov(:, :, :) ! (iim + 1, jjm + 1, llm) |
20 |
|
REAL, intent(in):: massebxy(:, :, :) ! (iim + 1, jjm, llm) mass of grid cell |
21 |
|
|
22 |
real, intent(out):: vorpot(ip1jm, llm) |
real, intent(out):: vorpot(:, :, :) ! (iim + 1, jjm, llm) |
23 |
! = (Filtre(d(vcov)/dx - d(ucov)/dy) + fext) / massebxy |
! = (Filtre(d(vcov)/dx - d(ucov)/dy) + fext) / massebxy |
24 |
|
|
25 |
! Local: |
! Local: |
26 |
REAL rot(ip1jm, llm) |
REAL rot(iim + 1, jjm, llm) |
27 |
INTEGER l, ij |
! relative vorticity multiplied by cell area, in m2 s-1 |
28 |
|
|
29 |
|
INTEGER l, i, j |
30 |
|
|
31 |
!--------------------------------------------------------------- |
!--------------------------------------------------------------- |
32 |
|
|
33 |
! Calcul du rotationnel du vent puis filtrage |
! Calcul du rotationnel du vent puis filtrage |
34 |
|
|
35 |
DO l = 1, llm |
forall (i = 1: iim, j = 1: jjm) rot(i, j, :) & |
36 |
DO ij = 1, ip1jm - 1 |
= vcov(i + 1, j, :) - vcov(i, j, :) + ucov(i, j + 1, :) - ucov(i, j, :) |
37 |
rot(ij, l) = vcov(ij + 1, l) - vcov(ij, l) + ucov(ij + iip1, l) & |
rot(iim + 1, :, :) = rot(1, :, :) |
|
- ucov(ij, l) |
|
|
end DO |
|
|
|
|
|
! correction pour rot(iip1, j, l) |
|
|
! rot(iip1, j, l) = rot(1, j, l) |
|
|
DO ij = iip1, ip1jm, iip1 |
|
|
rot(ij, l) = rot(ij - iim, l) |
|
|
end DO |
|
|
end DO |
|
38 |
|
|
39 |
CALL filtreg(rot, jjm, llm, 2, 1, .FALSE.) |
CALL filtreg(rot, jjm, llm, 2, 1, .FALSE.) |
40 |
|
|
41 |
DO l = 1, llm |
forall (l = 1: llm) vorpot(:iim, :, l) & |
42 |
DO ij = 1, ip1jm - 1 |
= (rot(:iim, :, l) + fext_2d(:iim, :)) / massebxy(:iim, :, l) |
43 |
vorpot(ij, l) = (rot(ij, l) + fext(ij)) / massebxy(ij, l) |
vorpot(iim + 1, :, :)= vorpot(1, :, :) |
|
end DO |
|
|
|
|
|
! correction pour vorpot(iip1, j, l) |
|
|
! vorpot(iip1, j, l)= vorpot(1, j, l) |
|
|
DO ij = iip1, ip1jm, iip1 |
|
|
vorpot(ij, l) = vorpot(ij - iim, l) |
|
|
end DO |
|
|
end DO |
|
44 |
|
|
45 |
END SUBROUTINE tourpot |
END SUBROUTINE tourpot |
46 |
|
|