/[MITgcm]/MITgcm/pkg/mom_fluxform/mom_v_del2v.F
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Contents of /MITgcm/pkg/mom_fluxform/mom_v_del2v.F

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Revision 1.3 - (show annotations) (download)
Wed Sep 26 19:05:21 2001 UTC (22 years, 7 months ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint47e_post, checkpoint44e_post, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, release1_p13_pre, checkpoint46f_post, checkpoint44f_post, checkpoint46b_post, checkpoint43a-release1mods, release1_p13, checkpoint46l_pre, chkpt44d_post, release1_p8, release1_p9, release1_p1, release1_p2, release1_p3, release1_p4, release1_p5, release1_p6, release1_p7, checkpoint44e_pre, release1_b1, checkpoint48b_post, checkpoint43, checkpoint48c_pre, checkpoint47d_pre, release1_chkpt44d_post, checkpoint47a_post, checkpoint48d_pre, checkpoint47i_post, release1_p11, checkpoint47d_post, icebear5, icebear4, icebear3, icebear2, checkpoint46d_pre, checkpoint48d_post, release1-branch_tutorials, checkpoint45d_post, checkpoint46j_pre, chkpt44a_post, checkpoint44h_pre, checkpoint46a_post, checkpoint47g_post, checkpoint46j_post, checkpoint46k_post, chkpt44c_pre, checkpoint48a_post, checkpoint45a_post, 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, branch-exfmods-tag, checkpoint44g_post, checkpoint46e_pre, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, release1-branch-end, release1_final_v1, checkpoint46c_pre, checkpoint46, checkpoint47b_post, checkpoint44b_post, checkpoint46h_pre, checkpoint46m_post, checkpoint46a_pre, checkpoint45c_post, ecco_ice2, ecco_ice1, checkpoint44h_post, checkpoint46g_post, release1_p12_pre, ecco_c44_e22, ecco_c44_e25, checkpoint47f_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, checkpoint46e_post, release1_beta1, checkpoint44b_pre, checkpoint42, checkpoint41, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint46h_post, chkpt44c_post, checkpoint47h_post, checkpoint44f_pre, checkpoint46d_post, release1-branch_branchpoint
Branch point for: c24_e25_ice, branch-exfmods-curt, release1_final, release1-branch, release1, ecco-branch, release1_50yr, icebear, release1_coupled
Changes since 1.2: +23 -11 lines 
Added comments in form compatible with "protex".
1 C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_fluxform/mom_v_del2v.F,v 1.2 2001/05/29 14:01:38 adcroft Exp $
2 C $Name: $
3
4 #include "CPP_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: MOM_V_DEL2V
8
9 C !INTERFACE: ==========================================================
10 SUBROUTINE MOM_V_DEL2V(
11 I bi,bj,k,
12 I vFld, hFacZ,
13 O del2v,
14 I myThid)
15
16 C !DESCRIPTION:
17 C Calculates the Laplacian of meridional flow
18
19 C !USES: ===============================================================
20 IMPLICIT NONE
21 #include "SIZE.h"
22 #include "EEPARAMS.h"
23 #include "PARAMS.h"
24 #include "GRID.h"
25
26 C !INPUT PARAMETERS: ===================================================
27 C bi,bj :: tile indices
28 C k :: vertical level
29 C vFld :: meridional flow
30 C hFacZ :: fractional thickness at vorticity points
31 C myThid :: thread number`
32 INTEGER bi,bj,k
33 _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
34 _RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
35 INTEGER myThid
36 C !OUTPUT PARAMETERS: ==================================================
37 C del2v :: Laplacian
38 _RL del2v(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
39
40 C !LOCAL VARIABLES: ====================================================
41 C i,j :: loop indices
42 INTEGER I,J
43 _RL fZon(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
44 _RL fMer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
45 _RS hFacZClosedE,hFacZClosedW
46 CEOP
47
48 C Zonal flux d/dx V
49 DO j=1-Oly,sNy+Oly
50 DO i=1-Olx+1,sNx+Olx
51 fZon(i,j) = drF(k)*hFacZ(i,j)
52 & *_dyU(i,j,bi,bj)
53 & *_recip_dxV(i,j,bi,bj)
54 & *(vFld(i,j)-vFld(i-1,j))
55 #ifdef COSINEMETH_III
56 & *sqcosFacV(J,bi,bj)
57 #endif
58 ENDDO
59 ENDDO
60
61 C Meridional flux d/dy V
62 DO j=1-Oly,sNy+Oly-1
63 DO i=1-Olx,sNx+Olx
64 fMer(i,j) = drF(k)*_hFacC(i,j,k,bi,bj)
65 & *_dxF(i,j,bi,bj)
66 & *_recip_dyF(i,j,bi,bj)
67 & *(vFld(i,j+1)-vFld(i,j))
68 ENDDO
69 ENDDO
70
71 C del^2 U
72 DO j=0,sNy+2
73 DO i=0,sNx+1
74 del2v(i,j) = recip_drF(k)*_recip_hFacS(i,j,k,bi,bj)
75 & *recip_rAs(i,j,bi,bj)
76 & *( fZon(i+1,j) - fZon(i, j )
77 & +fMer( i ,j) - fMer(i,j-1)
78 & )*_maskS(i,j,k,bi,bj)
79 ENDDO
80 ENDDO
81
82 IF (no_slip_sides) THEN
83 C-- No-slip BCs impose a drag at walls...
84 DO j=0,sNy+2
85 DO i=0,sNx+1
86 hFacZClosedW = _hFacS(i,j,k,bi,bj) - hFacZ(i,j)
87 hFacZClosedE = _hFacS(i,j,k,bi,bj) - hFacZ(i+1,j)
88 del2v(i,j) = del2v(i,j)
89 & -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k)
90 & *recip_rAs(i,j,bi,bj)
91 & *( hFacZClosedW*dyU( i ,j,bi,bj)
92 & *_recip_dxV( i ,j,bi,bj)
93 & +hFacZClosedE*dyU(i+1,j,bi,bj)
94 & *_recip_dxV(i+1,j,bi,bj)
95 & )*drF(k)*2.*vFld(i,j)
96 & *_maskS(i,j,k,bi,bj)
97 ENDDO
98 ENDDO
99 ENDIF
100
101 RETURN
102 END
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