Directory: | ./ |
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File: | dyn3d_common/massbar.f90 |
Date: | 2022-01-11 19:19:34 |
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1 | 3841 | SUBROUTINE massbar(masse,massebx,masseby) | |
2 | ! | ||
3 | !------------------------------------------------------------------------------- | ||
4 | ! Authors: P. Le Van , Fr. Hourdin. | ||
5 | !------------------------------------------------------------------------------- | ||
6 | ! Purpose: Compute air mass mean along X and Y in each cell. | ||
7 | ! See iniconst for more details. | ||
8 | IMPLICIT NONE | ||
9 | include "dimensions.h" | ||
10 | include "paramet.h" | ||
11 | include "comgeom.h" | ||
12 | !=============================================================================== | ||
13 | ! Arguments: | ||
14 | REAL, INTENT(IN) :: masse (ip1jmp1,llm) | ||
15 | REAL, INTENT(OUT) :: massebx(ip1jmp1,llm) | ||
16 | REAL, INTENT(OUT) :: masseby(ip1jm ,llm) | ||
17 | !------------------------------------------------------------------------------- | ||
18 | ! Method used. Each scalar point is associated to 4 area coefficients: | ||
19 | ! * alpha1(i,j) at point ( i+1/4,j-1/4 ) | ||
20 | ! * alpha2(i,j) at point ( i+1/4,j+1/4 ) | ||
21 | ! * alpha3(i,j) at point ( i-1/4,j+1/4 ) | ||
22 | ! * alpha4(i,j) at point ( i-1/4,j-1/4 ) | ||
23 | ! where alpha1(i,j) = aire(i+1/4,j-1/4)/ aire(i,j) | ||
24 | ! | ||
25 | ! alpha4 . . alpha1 . alpha4 | ||
26 | ! (i,j) (i,j) (i+1,j) | ||
27 | ! | ||
28 | ! P . U . . P | ||
29 | ! (i,j) (i,j) (i+1,j) | ||
30 | ! | ||
31 | ! alpha3 . . alpha2 .alpha3 | ||
32 | ! (i,j) (i,j) (i+1,j) | ||
33 | ! | ||
34 | ! V . Z . . V | ||
35 | ! (i,j) | ||
36 | ! | ||
37 | ! alpha4 . . alpha1 .alpha4 | ||
38 | ! (i,j+1) (i,j+1) (i+1,j+1) | ||
39 | ! | ||
40 | ! P . U . . P | ||
41 | ! (i,j+1) (i+1,j+1) | ||
42 | ! | ||
43 | ! | ||
44 | ! massebx(i,j) = masse(i ,j) * ( alpha1(i ,j) + alpha2(i,j)) + | ||
45 | ! masse(i+1,j) * ( alpha3(i+1,j) + alpha4(i+1,j) ) | ||
46 | ! localized at point ... U (i,j) ... | ||
47 | ! | ||
48 | ! masseby(i,j) = masse(i,j ) * ( alpha2(i,j ) + alpha3(i,j ) + | ||
49 | ! masse(i,j+1) * ( alpha1(i,j+1) + alpha4(i,j+1) | ||
50 | ! localized at point ... V (i,j) ... | ||
51 | !=============================================================================== | ||
52 | ! Local variables: | ||
53 | INTEGER :: ij, l | ||
54 | !=============================================================================== | ||
55 |
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153640 | DO l=1,llm |
56 |
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163131111 | DO ij=1,ip1jmp1-1 |
57 | 163131111 | massebx(ij,l)=masse(ij,l)*alpha1p2(ij)+masse(ij+1 ,l)*alpha3p4(ij+1) | |
58 | END DO | ||
59 |
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4943367 | DO ij=iip1,ip1jmp1,iip1; massebx(ij,l)=massebx(ij-iim,l); END DO |
60 |
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158341384 | DO ij=1,ip1jm |
61 | 158337543 | masseby(ij,l)=masse(ij,l)*alpha2p3(ij)+masse(ij+iip1,l)*alpha1p4(ij+iip1) | |
62 | END DO | ||
63 | END DO | ||
64 | |||
65 | 3841 | END SUBROUTINE massbar | |
66 | |||
67 |