/[MITgcm]/MITgcm/pkg/mom_fluxform/mom_u_adv_wu.F
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Revision 1.5 - (hide annotations) (download)
Fri Jan 24 17:15:59 2003 UTC (21 years, 3 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint48a_post
Changes since 1.4: +19 -9 lines
in preparation for r*, use temp. array to compute vertical transport.
 This affects truncation error and changes results of few test-exp.

1 jmc 1.5 C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_u_adv_wu.F,v 1.4 2002/12/10 03:02:38 jmc Exp $
2 adcroft 1.3 C $Name: $
3 adcroft 1.2
4     #include "CPP_OPTIONS.h"
5    
6 adcroft 1.3 CBOP
7     C !ROUTINE: MOM_U_ADV_WU
8    
9     C !INTERFACE: ==========================================================
10 adcroft 1.2 SUBROUTINE MOM_U_ADV_WU(
11     I bi,bj,k,
12     I uFld,wFld,
13     O advectiveFluxWU,
14     I myThid)
15 adcroft 1.3
16     C !DESCRIPTION:
17     C Calculates the vertical advective flux of zonal momentum:
18     C \begin{equation*}
19     C F^r = \overline{W}^i \overline{u}^{k}
20     C \end{equation*}
21    
22     C !USES: ===============================================================
23 adcroft 1.2 IMPLICIT NONE
24     #include "SIZE.h"
25     #include "EEPARAMS.h"
26     #include "PARAMS.h"
27     #include "GRID.h"
28 jmc 1.4 #ifdef NONLIN_FRSURF
29     #include "SURFACE.h"
30     #endif
31 adcroft 1.2
32 adcroft 1.3 C !INPUT PARAMETERS: ===================================================
33     C bi,bj :: tile indices
34     C k :: vertical level
35     C rTrans :: vertical transport
36     C uFld :: zonal flow
37     C myThid :: thread number
38 adcroft 1.2 INTEGER bi,bj,k
39     _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
40     _RL wFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
41 adcroft 1.3 INTEGER myThid
42    
43     C !OUTPUT PARAMETERS: ==================================================
44     C advectiveFluxWU :: advective flux
45 adcroft 1.2 _RL advectiveFluxWU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
46    
47 adcroft 1.3 C !LOCAL VARIABLES: ====================================================
48     C i,j :: loop indices
49     INTEGER I,J
50 jmc 1.5 _RL tmpFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
51 adcroft 1.3 CEOP
52 adcroft 1.2
53 jmc 1.4 #ifdef NONLIN_FRSURF
54     IF ( k.EQ.Nr+1 .AND.
55     & useRealFreshWaterFlux .AND.
56     & buoyancyRelation .EQ. 'OCEANICP' ) THEN
57     DO j=1-Oly,sNy+Oly
58     DO i=1-Olx+1,sNx+Olx
59     advectiveFluxWU(i,j) = convertEmP2rUnit*
60     & ( PmEpR( i ,j,bi,bj)*rA( i ,j,bi,bj)
61     & +PmEpR(i-1,j,bi,bj)*rA(i-1,j,bi,bj)
62     & )*0.5 _d 0 * uFld(i,j,k-1,bi,bj)
63     ENDDO
64     ENDDO
65    
66     ELSEIF ( k.GT.Nr .OR. (k.EQ.1.AND.rigidLid) ) THEN
67     #else /* NONLIN_FRSURF */
68 adcroft 1.2 IF ( k.GT.Nr .OR.
69     & (k.EQ.1.AND.rigidLid) ) THEN
70 jmc 1.4 #endif /* NONLIN_FRSURF */
71 adcroft 1.2 C Advective flux = 0 at k=Nr+1 ; = 0 at k=1 if rigid-lid
72    
73     DO j=1-Oly,sNy+Oly
74     DO i=1-Olx,sNx+Olx
75     advectiveFluxWU(i,j) = 0.
76     ENDDO
77     ENDDO
78    
79     ELSEIF (k.EQ.1) THEN
80     C (linear) Free-surface correction at k=1
81    
82     DO j=1-Oly,sNy+Oly
83     DO i=1-Olx+1,sNx+Olx
84 jmc 1.5 c advectiveFluxWU(i,j) =
85     c & 0.5*(
86     c & wFld( i ,j,k,bi,bj)*rA( i ,j,bi,bj)
87     c & +wFld(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj)
88     c & )*uFld(i,j,k,bi,bj)
89     tmpFld(i,j) = 0.5 _d 0*(
90 adcroft 1.2 & wFld( i ,j,k,bi,bj)*rA( i ,j,bi,bj)
91 jmc 1.5 & +wFld(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj) )
92     advectiveFluxWU(i,j) = tmpFld(i,j)*uFld(i,j,k,bi,bj)
93 adcroft 1.2 ENDDO
94     ENDDO
95    
96     ELSE
97    
98     C Vertical advection - interior ; assume uFld & wFld are masked
99     DO j=1-Oly,sNy+Oly
100     DO i=1-Olx+1,sNx+Olx
101 jmc 1.5 c advectiveFluxWU(i,j) =
102     c & 0.25*(
103     c & wFld( i ,j,k,bi,bj)*rA( i ,j,bi,bj)
104     c & +wFld(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj)
105     c & )*( uFld(i,j,k,bi,bj)+uFld(i,j,k-1,bi,bj) )
106     tmpFld(i,j) = 0.5 _d 0*(
107 adcroft 1.2 & wFld( i ,j,k,bi,bj)*rA( i ,j,bi,bj)
108 jmc 1.5 & +wFld(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj) )
109     advectiveFluxWU(i,j) = tmpFld(i,j)*0.5 _d 0
110     & *( uFld(i,j,k,bi,bj)+uFld(i,j,k-1,bi,bj) )
111 adcroft 1.2 ENDDO
112     ENDDO
113    
114     IF (.NOT. rigidLid) THEN
115     C (linear) Free-surface correction at k>1
116     DO j=1-Oly,sNy+Oly
117     DO i=1-Olx+1,sNx+Olx
118     advectiveFluxWU(i,j) = advectiveFluxWU(i,j)
119     & +0.25*(
120     & wFld(i, j ,k,bi,bj)*rA(i, j ,bi,bj)*
121     & (maskC(i,j,k,bi,bj) - maskC(i,j,k-1,bi,bj))
122     & +wFld(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj)*
123     & (maskC(i-1,j,k,bi,bj)-maskC(i-1,j,k-1,bi,bj))
124     & )*uFld(i,j,k,bi,bj)
125     ENDDO
126     ENDDO
127     C- endif NOT rigidLid
128     ENDIF
129    
130     ENDIF
131    
132     RETURN
133     END

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