| 1 |
module tourpot_m |
| 2 |
|
| 3 |
IMPLICIT NONE |
| 4 |
|
| 5 |
contains |
| 6 |
|
| 7 |
SUBROUTINE tourpot(vcov, ucov, massebxy, vorpot) |
| 8 |
|
| 9 |
! From LMDZ4/libf/dyn3d/tourpot.F, version 1.1.1.1 2004/05/19 12:53:06 |
| 10 |
|
| 11 |
! Author: P. Le Van |
| 12 |
! Objet : calcul du tourbillon potentiel |
| 13 |
|
| 14 |
USE dimens_m, ONLY: iim, jjm, llm |
| 15 |
USE comgeom, ONLY: fext_2d |
| 16 |
use filtreg_m, only: filtreg |
| 17 |
|
| 18 |
REAL, intent(in):: vcov(:, :, :) ! (iim + 1, jjm, llm) |
| 19 |
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(:, :, :) ! (iim + 1, jjm, llm) |
| 23 |
! = (Filtre(d(vcov)/dx - d(ucov)/dy) + fext) / massebxy |
| 24 |
|
| 25 |
! Local: |
| 26 |
REAL rot(iim + 1, jjm, llm) |
| 27 |
! 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 |
| 34 |
|
| 35 |
forall (i = 1: iim, j = 1: jjm) rot(i, j, :) & |
| 36 |
= vcov(i + 1, j, :) - vcov(i, j, :) + ucov(i, j + 1, :) - ucov(i, j, :) |
| 37 |
rot(iim + 1, :, :) = rot(1, :, :) |
| 38 |
|
| 39 |
CALL filtreg(rot, jjm, llm, 2, 1, .FALSE.) |
| 40 |
|
| 41 |
forall (l = 1: llm) vorpot(:iim, :, l) & |
| 42 |
= (rot(:iim, :, l) + fext_2d(:iim, :)) / massebxy(:iim, :, l) |
| 43 |
vorpot(iim + 1, :, :)= vorpot(1, :, :) |
| 44 |
|
| 45 |
END SUBROUTINE tourpot |
| 46 |
|
| 47 |
end module tourpot_m |
Parent Directory
| 
Revision Log