/[MITgcm]/MITgcm/pkg/mom_vecinv/mom_vi_v_vertshear.F
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Revision 1.4 - (hide annotations) (download)
Mon Sep 10 14:14:36 2001 UTC (22 years, 8 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint51k_post, checkpoint47e_post, checkpoint52l_pre, checkpoint44e_post, hrcube4, hrcube5, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, release1_p13_pre, checkpoint50c_post, checkpoint46f_post, checkpoint52d_pre, checkpoint48e_post, checkpoint50c_pre, checkpoint44f_post, checkpoint46b_post, checkpoint52j_pre, checkpoint43a-release1mods, checkpoint51o_pre, ecco_c50_e32, ecco_c50_e33, ecco_c50_e30, ecco_c50_e31, release1_p13, checkpoint51l_post, checkpoint48i_post, checkpoint40pre9, checkpoint46l_pre, checkpoint52l_post, checkpoint52k_post, chkpt44d_post, checkpoint54, checkpoint51, checkpoint50, checkpoint53, checkpoint52, release1_p8, release1_p9, checkpoint50d_post, release1_p1, release1_p2, release1_p3, release1_p4, release1_p5, release1_p6, release1_p7, checkpoint52f_post, checkpoint50b_pre, checkpoint44e_pre, checkpoint51f_post, release1_b1, ecco_c51_e34d, ecco_c51_e34e, ecco_c51_e34f, ecco_c51_e34g, ecco_c51_e34a, ecco_c51_e34b, ecco_c51_e34c, checkpoint48b_post, checkpoint43, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, checkpoint51t_post, checkpoint51n_post, release1_chkpt44d_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint47a_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint52e_pre, release1_p11, checkpoint52e_post, checkpoint51n_pre, checkpoint47d_post, icebear5, icebear4, icebear3, icebear2, checkpoint53d_post, checkpoint46d_pre, checkpoint48d_post, release1-branch_tutorials, checkpoint48f_post, checkpoint45d_post, checkpoint52b_pre, checkpoint54b_post, checkpoint46j_pre, checkpoint51l_pre, checkpoint52m_post, chkpt44a_post, checkpoint44h_pre, checkpoint48h_post, checkpoint51q_post, ecco_c50_e29, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, checkpoint52b_post, checkpoint52c_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46k_post, ecco_c50_e28, chkpt44c_pre, checkpoint48a_post, checkpoint45a_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint52f_pre, ecco_c44_e19, ecco_c44_e18, ecco_c44_e17, ecco_c44_e16, release1_p12, release1_p10, release1_p16, release1_p17, release1_p14, release1_p15, checkpoint47j_post, checkpoint54a_pre, ecco_c50_e33a, checkpoint53c_post, branch-exfmods-tag, checkpoint44g_post, branchpoint-genmake2, checkpoint54a_post, checkpoint46e_pre, checkpoint51r_post, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, checkpoint51i_post, release1-branch-end, release1_final_v1, checkpoint51b_post, checkpoint51c_post, checkpoint46c_pre, checkpoint53a_post, checkpoint46, checkpoint47b_post, checkpoint44b_post, ecco_c51_e34, checkpoint46h_pre, checkpoint52d_post, checkpoint53g_post, checkpoint46m_post, checkpoint46a_pre, checkpoint50g_post, checkpoint45c_post, ecco_ice2, ecco_ice1, checkpoint44h_post, checkpoint46g_post, release1_p12_pre, checkpoint52a_pre, ecco_c44_e22, checkpoint50h_post, checkpoint52i_post, checkpoint50e_pre, checkpoint50i_post, ecco_c44_e25, checkpoint51i_pre, checkpoint52h_pre, checkpoint53f_post, checkpoint52j_post, checkpoint47f_post, checkpoint50e_post, chkpt44a_pre, checkpoint46i_post, ecco_c44_e23, ecco_c44_e20, ecco_c44_e21, ecco_c44_e26, ecco_c44_e27, ecco_c44_e24, checkpoint46c_post, ecco-branch-mod1, ecco-branch-mod2, ecco-branch-mod3, ecco-branch-mod4, ecco-branch-mod5, branch-netcdf, checkpoint50d_pre, checkpoint52n_post, checkpoint53b_pre, checkpoint46e_post, release1_beta1, checkpoint51e_post, checkpoint44b_pre, checkpoint42, checkpoint40, checkpoint41, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint49, checkpoint46h_post, checkpoint51o_post, checkpoint51f_pre, chkpt44c_post, checkpoint48g_post, checkpoint53b_post, checkpoint47h_post, checkpoint52a_post, checkpoint44f_pre, checkpoint51g_post, ecco_c52_e35, checkpoint46d_post, checkpoint50b_post, release1-branch_branchpoint, checkpoint51m_post, checkpoint53d_pre, checkpoint54c_post, checkpoint51a_post, checkpoint51p_post, checkpoint51u_post
Branch point for: c24_e25_ice, branch-exfmods-curt, release1_final, release1-branch, branch-genmake2, release1, branch-nonh, tg2-branch, ecco-branch, release1_50yr, netcdf-sm0, icebear, checkpoint51n_branch, release1_coupled
Changes since 1.3: +17 -13 lines 
return to the previous masking for the bottom and fix it for the top
1 jmc 1.4 C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_vecinv/mom_vi_v_vertshear.F,v 1.3 2001/09/06 17:59:35 jmc Exp $
2 jmc 1.3 C $Name: $
3 adcroft 1.2
4     #include "CPP_OPTIONS.h"
5    
6     SUBROUTINE MOM_VI_V_VERTSHEAR(
7     I bi,bj,K,
8     I vFld,wFld,
9     U vShearTerm,
10     I myThid)
11     IMPLICIT NONE
12     C /==========================================================\
13     C | S/R MOM_V_VERTSHEAR |
14     C |==========================================================|
15     C \==========================================================/
16    
17     C == Global variables ==
18     #include "SIZE.h"
19     #include "EEPARAMS.h"
20     #include "GRID.h"
21     #include "PARAMS.h"
22    
23     C == Routine arguments ==
24     INTEGER bi,bj,K
25     _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
26     _RL wFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
27     _RL vShearTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
28     INTEGER myThid
29    
30     C == Local variables ==
31     INTEGER I,J,Kp1,Km1
32     _RL mask_Kp1,mask_Km1,wBarYm,wBarYp
33     _RL vZm,vZp,vmask_Kp1,vmask_K,vmask_Km1
34     LOGICAL freeslipK,noslipK
35     PARAMETER(freeslipK=.TRUE.)
36     PARAMETER(noslipK=.NOT.freeslipK)
37     LOGICAL freeslip1,noslip1
38     PARAMETER(freeslip1=.TRUE.)
39     PARAMETER(noslip1=.NOT.freeslip1)
40     c1 _RL wBarYZ,vZbarZ
41     c1 LOGICAL upwindShear
42     c1 PARAMETER(upwindShear=.FALSE.)
43    
44     Kp1=min(K+1,Nr)
45     mask_Kp1=1.
46     IF (K.EQ.Nr) mask_Kp1=0.
47     Km1=max(K-1,1)
48     mask_Km1=1.
49     IF (K.EQ.1) mask_Km1=0.
50    
51 jmc 1.3 DO J=2-Oly,sNy+Oly
52     DO I=1-Olx,sNx+Olx
53 adcroft 1.2
54 jmc 1.3 c vmask_K=_maskS(i,j,k,bi,bj)
55 adcroft 1.2
56     C barZ( barY( W ) )
57     c wBarYm=0.5*(wFld(I,J,K,bi,bj)+wFld(I,J-1,K,bi,bj))
58     c wBarYp=0.5*(wFld(I,J,Kp1,bi,bj)+wFld(I,J-1,Kp1,bi,bj))
59     c & *mask_Kp1
60    
61     C Transport at interface k
62 jmc 1.4 wBarYm=0.5*(
63     & wFld(I,J,K,bi,bj)*rA(i,j,bi,bj)*maskC(i,j,Km1,bi,bj)
64     & +wFld(I,J-1,K,bi,bj)*rA(i,j-1,bi,bj)*maskC(i,j-1,Km1,bi,bj)
65     & )*mask_Km1
66    
67     C Transport at interface k+1 (here wFld is already masked)
68     wBarYp=0.5*(
69     & wFld(I,J,Kp1,bi,bj)*rA(i,j,bi,bj)
70     & +wFld(I,J-1,Kp1,bi,bj)*rA(i,j-1,bi,bj)
71     & )*mask_Kp1
72 adcroft 1.2
73     C delta_Z( V ) @ interface k
74 jmc 1.4 c vmask_Km1=mask_Km1*maskS(i,j,Km1,bi,bj)
75 adcroft 1.2 vZm=(mask_Km1*vFld(I,J,Km1,bi,bj)-vFld(I,J,K,bi,bj))
76     c2 & *recip_dRC(K)
77 jmc 1.4 c IF (freeslip1) vZm=vZm*vmask_Km1
78     c IF (noslip1.AND.vmask_Km1.EQ.0.) vZm=vZm*2.
79 adcroft 1.2
80     C delta_Z( V ) @ interface k+1
81 jmc 1.4 c vmask_Kp1=mask_Kp1*maskS(i,j,Kp1,bi,bj)
82 adcroft 1.2 vZp=(vFld(I,J,K,bi,bj)-mask_Kp1*vFld(I,J,Kp1,bi,bj))
83     c2 & *recip_dRC(Kp1)
84 jmc 1.4 c IF (freeslipK) vZp=vZp*vmask_Kp1
85     c IF (noslipK.AND.vmask_Kp1.EQ.0.) vZp=vZp*2.
86 adcroft 1.2
87     c1 IF (upwindShear) THEN
88     c1 wBarYZ=0.5*( wBarXm + wBarXp )
89     c1 IF (wBarYZ.GT.0.) THEN
90     c1 vZbarZ=vZp
91     c1 ELSE
92     c1 vZbarZ=vZm
93     c1 ENDIF
94     c1 ELSE
95     c1 vZbarZ=0.5*(vZm+vZp)
96     c1 ENDIF
97     c1 vShearTerm(I,J)=-wBarYZ*vZbarZ*_maskS(I,J,K,bi,bj)
98    
99     c2 vShearTerm(I,J)=-0.5*(wBarYp*vZp+wBarYm*vZm)
100     c2 & *_maskS(I,J,K,bi,bj)
101     vShearTerm(I,J)=-0.5*(wBarYp*vZp+wBarYm*vZm)
102     & *recip_ras(i,j,bi,bj)
103     & *recip_hFacS(i,j,k,bi,bj)
104     & *recip_dRF(K)
105     ENDDO
106     ENDDO
107    
108     RETURN
109     END
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