/[lmdze]/trunk/Sources/filtrez/filtreg_hemisph.f
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Contents of /trunk/Sources/filtrez/filtreg_hemisph.f

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Revision 136 - (show annotations)
Thu Apr 30 18:35:49 2015 UTC (9 years ago) by guez
File size: 785 byte(s)
Clarified the logic in filtreg by creating a procedure
filtreg_hemisph. It was terrible with a loop on hemispheres and tests
on hemisphere inside the loop, plus maddening indirections on latitude
bounds, plus repeated code. Went from 126 lines to much clearer 74 +
32 = 106 lines.

In module inifilr_m, finally made the arrays matrice[uv][ns],
matrinv[ns] dynamic (following LMDZ). Changed the lower bound of
matriceun and matrinvn in the 3rd dimension: 2 instead of 1, the index
1 was not defined (nor used).

In module inifilr_m, changed the bounds of matriceus and matrinvs in
the 3rd dimension: jfiltsu:jjm instead of 1:jjm - jfiltsu + 1. Changed
the bounds of matricevs in the 3rd dimension: jfiltsv:jjm instead of
1:jjm - jfiltsv + 1. It is a little simpler and clearer this way in
procedure inifilr.


1 module filtreg_hemisph_m
2
3 implicit none
4
5 contains
6
7 subroutine filtreg_hemisph(champ, sdd1, sdd2, matri)
8
9 USE dimens_m, ONLY: iim
10
11 REAL, intent(inout):: champ(:, :, :) ! (iim + 1, :, :)
12 REAL, intent(in):: sdd1(:), sdd2(:) ! (iim)
13 real, intent(in), dimension(:, :, :):: matri ! (iim, iim, :)
14
15 ! Local:
16 integer l, j
17
18 !-----------------------------------------------------------------
19
20 DO l = 1, size(champ, 3)
21 DO j = 1, size(champ, 2)
22 champ(:iim, j, l) = champ(:iim, j, l) * sdd1
23 champ(:iim, j, l) = (champ(:iim, j, l) &
24 + matmul(matri(:, :, j), champ(:iim, j, l))) * sdd2
25 champ(iim + 1, j, l) = champ(1, j, l)
26 END DO
27 END DO
28
29 end subroutine filtreg_hemisph
30
31 end module filtreg_hemisph_m

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