1 |
jmc |
1.2 |
C $Header: /u/gcmpack/models/MITgcmUV/pkg/generic_advdiff/gad_c4_adv_r.F,v 1.1 2001/05/30 19:34:48 adcroft Exp $ |
2 |
|
|
C $Name: $ |
3 |
adcroft |
1.1 |
|
4 |
|
|
#include "GAD_OPTIONS.h" |
5 |
|
|
|
6 |
|
|
SUBROUTINE GAD_C4_ADV_R( |
7 |
|
|
I bi,bj,k, |
8 |
|
|
I rTrans, |
9 |
|
|
I tracer, |
10 |
|
|
O wT, |
11 |
|
|
I myThid ) |
12 |
jmc |
1.2 |
C /==========================================================\ |
13 |
|
|
C | SUBROUTINE GAD_C4_ADV_R | |
14 |
|
|
C | o Compute vertical advective Flux of Tracer using | |
15 |
|
|
C | 4th Order Centered Scheme | |
16 |
|
|
C |==========================================================| |
17 |
adcroft |
1.1 |
IMPLICIT NONE |
18 |
|
|
|
19 |
|
|
C == GLobal variables == |
20 |
|
|
#include "SIZE.h" |
21 |
|
|
#include "GRID.h" |
22 |
|
|
#include "GAD.h" |
23 |
|
|
|
24 |
|
|
C == Routine arguments == |
25 |
|
|
INTEGER bi,bj,k |
26 |
|
|
_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
27 |
|
|
_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
28 |
|
|
_RL wT (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
29 |
|
|
INTEGER myThid |
30 |
|
|
|
31 |
|
|
C == Local variables == |
32 |
|
|
INTEGER i,j,kp1,km1,km2 |
33 |
|
|
_RL Cr,Rjm,Rj,Rjp,Rjjm,Rjjp |
34 |
|
|
#include "GAD_FLUX_LIMITER.h" |
35 |
|
|
|
36 |
|
|
km2=MAX(1,k-2) |
37 |
|
|
km1=MAX(1,k-1) |
38 |
|
|
kp1=MIN(Nr,k+1) |
39 |
|
|
|
40 |
jmc |
1.2 |
IF ( k.EQ.1 .OR. k.GT.Nr) THEN |
41 |
adcroft |
1.1 |
DO j=1-Oly,sNy+Oly |
42 |
|
|
DO i=1-Olx,sNx+Olx |
43 |
|
|
wT(i,j) = 0. |
44 |
|
|
ENDDO |
45 |
|
|
ENDDO |
46 |
|
|
ELSE |
47 |
|
|
DO j=1-Oly,sNy+Oly |
48 |
|
|
DO i=1-Olx,sNx+Olx |
49 |
|
|
Rjp=(tracer(i,j,kp1,bi,bj)-tracer(i,j,k,bi,bj)) |
50 |
|
|
& *maskC(i,j,kp1,bi,bj) |
51 |
jmc |
1.2 |
Rj =(tracer(i,j,k,bi,bj)-tracer(i,j,km1,bi,bj)) |
52 |
|
|
Rjm=(tracer(i,j,km1,bi,bj)-tracer(i,j,km2,bi,bj)) |
53 |
|
|
& *maskC(i,j,km2,bi,bj) |
54 |
adcroft |
1.1 |
Rjjp=Rjp-Rj |
55 |
|
|
Rjjm=Rj-Rjm |
56 |
jmc |
1.2 |
wT(i,j) = maskC(i,j,kM1,bi,bj)* |
57 |
adcroft |
1.1 |
& rTrans(i,j)*( |
58 |
|
|
& (Tracer(i,j,k,bi,bj)+Tracer(i,j,kM1,bi,bj))*0.5 _d 0 |
59 |
jmc |
1.2 |
& -oneSixth*(Rjjm+Rjjp)*0.5 _d 0 ) |
60 |
adcroft |
1.1 |
ENDDO |
61 |
|
|
ENDDO |
62 |
|
|
ENDIF |
63 |
|
|
|
64 |
|
|
RETURN |
65 |
|
|
END |