/[MITgcm]/MITgcm/pkg/shap_filt/shap_filt_uv_s2c.F
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Contents of /MITgcm/pkg/shap_filt/shap_filt_uv_s2c.F

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Revision 1.1 - (show annotations) (download)
Mon Mar 4 01:25:02 2002 UTC (22 years, 2 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint51k_post, checkpoint47e_post, checkpoint52l_pre, hrcube4, hrcube5, checkpoint46l_post, checkpoint46g_pre, checkpoint47c_post, checkpoint50c_post, checkpoint57b_post, checkpoint46f_post, checkpoint52d_pre, checkpoint48e_post, checkpoint56b_post, checkpoint50c_pre, checkpoint44f_post, checkpoint46b_post, checkpoint52j_pre, checkpoint51o_pre, checkpoint54d_post, checkpoint54e_post, checkpoint51l_post, checkpoint48i_post, checkpoint46l_pre, checkpoint57d_post, checkpoint50d_pre, checkpoint52k_post, checkpoint55, checkpoint54, checkpoint57, checkpoint56, checkpoint51, checkpoint50, checkpoint53, checkpoint52, checkpoint50d_post, checkpoint52f_post, checkpoint50b_pre, checkpoint54f_post, checkpoint51f_post, checkpoint48b_post, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, checkpoint51t_post, checkpoint51n_post, checkpoint55i_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint47a_post, checkpoint55c_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint52e_pre, checkpoint52e_post, checkpoint51n_pre, checkpoint47d_post, checkpoint53d_post, checkpoint46d_pre, checkpoint57a_post, checkpoint48d_post, checkpoint48f_post, checkpoint45d_post, checkpoint52b_pre, checkpoint54b_post, checkpoint46j_pre, checkpoint51l_pre, checkpoint52m_post, checkpoint55g_post, checkpoint44h_pre, checkpoint48h_post, checkpoint51q_post, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, checkpoint52b_post, checkpoint52c_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46k_post, checkpoint48a_post, checkpoint45a_post, checkpoint57c_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint52f_pre, checkpoint55d_post, checkpoint47j_post, checkpoint54a_pre, checkpoint53c_post, checkpoint55d_pre, checkpoint57c_pre, checkpoint55j_post, branch-exfmods-tag, checkpoint44g_post, branchpoint-genmake2, checkpoint54a_post, checkpoint46e_pre, checkpoint55h_post, checkpoint51r_post, checkpoint48c_post, checkpoint45b_post, checkpoint46b_pre, checkpoint51i_post, checkpoint55b_post, checkpoint51b_post, checkpoint51c_post, checkpoint46c_pre, checkpoint53a_post, checkpoint46, checkpoint47b_post, checkpoint55f_post, checkpoint46h_pre, checkpoint52d_post, checkpoint53g_post, checkpoint46m_post, checkpoint46a_pre, checkpoint50g_post, checkpoint45c_post, checkpoint44h_post, checkpoint46g_post, checkpoint52a_pre, checkpoint50h_post, checkpoint52i_post, checkpoint50e_pre, checkpoint50i_post, checkpoint51i_pre, checkpoint52h_pre, checkpoint56a_post, checkpoint53f_post, checkpoint52j_post, checkpoint47f_post, checkpoint50e_post, checkpoint46i_post, checkpoint46c_post, branch-netcdf, checkpoint52l_post, checkpoint52n_post, checkpoint53b_pre, checkpoint46e_post, checkpoint56c_post, checkpoint51e_post, checkpoint57a_pre, checkpoint55a_post, checkpoint47, checkpoint45, checkpoint48, checkpoint49, checkpoint46h_post, checkpoint51o_post, checkpoint51f_pre, checkpoint48g_post, checkpoint53b_post, checkpoint47h_post, checkpoint52a_post, checkpoint44f_pre, checkpoint51g_post, ecco_c52_e35, checkpoint46d_post, checkpoint50b_post, checkpoint51m_post, checkpoint53d_pre, checkpoint55e_post, checkpoint54c_post, checkpoint51a_post, checkpoint51p_post, checkpoint51u_post
Branch point for: branch-exfmods-curt, branch-genmake2, branch-nonh, tg2-branch, ecco-branch, netcdf-sm0, checkpoint51n_branch 
Computational mode (no grid space) Shapiro filter for momentum,
that includes No-Slip BC option ; use "S2" operator.
1 C $Header: $
2 C $Name: $
3
4 #include "SHAP_FILT_OPTIONS.h"
5
6 CBOP
7 C !ROUTINE: SHAP_FILT_UV_S2C
8 C !INTERFACE:
9 SUBROUTINE SHAP_FILT_UV_S2C(
10 U uFld, vFld, tmpFldU, tmpFldV,
11 I kSize, myTime, myThid )
12 C !DESCRIPTION: \bv
13 C *==========================================================*
14 C | S/R SHAP_FILT_UV_S2C
15 C | o Applies Shapiro filter to velocity field (u & v).
16 C | o use filtering function "S2" = [1 - (d_xx+d_yy)^n]
17 C | with no grid spacing (computational Filter) ;
18 C | include No-Slip option
19 C *==========================================================*
20 C \ev
21
22 C !USES:
23 IMPLICIT NONE
24
25 C == Global variables ===
26 #include "SIZE.h"
27 #include "EEPARAMS.h"
28 #include "PARAMS.h"
29 #include "GRID.h"
30 #include "SHAP_FILT.h"
31
32 C !INPUT/OUTPUT PARAMETERS:
33 C == Routine arguments
34 C uFld :: velocity field (U component) on which filter applies
35 C vFld :: velocity field (V component) on which filter applies
36 C tmpFldU :: working temporary array
37 C tmpFldV :: working temporary array
38 C kSize :: length of 3rd Dim : either =1 (2D field) or =Nr (3D field)
39 C myTime :: Current time in simulation
40 C myThid :: Thread number for this instance of SHAP_FILT_UV_S2C
41 INTEGER kSize
42 _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
43 _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
44 _RL tmpFldU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
45 _RL tmpFldV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,kSize,nSx,nSy)
46 _RL myTime
47 INTEGER myThid
48
49 #ifdef ALLOW_SHAP_FILT
50
51 C !LOCAL VARIABLES:
52 C == Local variables ==
53 INTEGER bi,bj,k,i,j,N
54 _RL tmpGrdU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
55 _RL tmpGrdV(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
56 _RL maskZj,maskZp
57 _RL noSlipFact
58 CEOP
59
60 noSlipFact = Shap_noSlip*2. _d 0
61
62 IF (nShapUV.gt.0) THEN
63
64 DO bj=myByLo(myThid),myByHi(myThid)
65 DO bi=myBxLo(myThid),myBxHi(myThid)
66 DO k=1,kSize
67 DO j=1-OLy,sNy+OLy
68 DO i=1-OLx,sNx+OLx
69 tmpFldU(i,j,k,bi,bj)=uFld(i,j,k,bi,bj)
70 & *_maskW(i,j,k,bi,bj)
71 tmpFldV(i,j,k,bi,bj)=vFld(i,j,k,bi,bj)
72 & *_maskS(i,j,k,bi,bj)
73 ENDDO
74 ENDDO
75 ENDDO
76 ENDDO
77 ENDDO
78
79
80 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
81
82 C [d_xx+d_yy]^n tmpFld
83
84 DO N=1,nShapUV
85
86 IF (kSize.EQ.Nr) THEN
87 CALL EXCH_UV_XYZ_RL(tmpFldU,tmpFldV,.TRUE.,myThid)
88 ELSE
89 CALL EXCH_UV_XY_RL(tmpFldU,tmpFldV,.TRUE.,myThid)
90 ENDIF
91
92
93 DO bj=myByLo(myThid),myByHi(myThid)
94 DO bi=myBxLo(myThid),myBxHi(myThid)
95 DO k=1,kSize
96
97 C Uxx + Uyy :
98 DO j=1,sNy
99 DO i=1,sNx+1
100 maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
101 maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
102 tmpGrdU(i,j) =
103 & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
104 & - 2.*tmpFldU(i,j,k,bi,bj)
105 & +(tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i, j ,k,bi,bj))*maskZp
106 & -(tmpFldU(i, j ,k,bi,bj)-tmpFldU(i,j-1,k,bi,bj))*maskZj
107 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
108 ENDDO
109 ENDDO
110
111 IF (useCubedSphereExchange) THEN
112 DO i=1,sNx+1,sNx
113 j=1
114 maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
115 maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
116 tmpGrdU(i,j) =
117 & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
118 & - 2.*tmpFldU(i,j,k,bi,bj)
119 & +(tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i, j ,k,bi,bj))*maskZp
120 & -(tmpFldU(i,j,k,bi,bj)-0*tmpFldU(i,j-1,k,bi,bj))*maskZj
121 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
122 j=sNy
123 maskZj=_maskS(i-1, j ,k,bi,bj)*_maskS( i , j ,k,bi,bj)
124 maskZp=_maskS(i-1,j+1,k,bi,bj)*_maskS( i ,j+1,k,bi,bj)
125 tmpGrdU(i,j) =
126 & tmpFldU(i-1,j,k,bi,bj) + tmpFldU(i+1,j,k,bi,bj)
127 & - 2.*tmpFldU(i,j,k,bi,bj)
128 & +(0*tmpFldU(i,j+1,k,bi,bj)-tmpFldU(i,j,k,bi,bj))*maskZp
129 & -(tmpFldU(i, j ,k,bi,bj)-tmpFldU(i,j-1,k,bi,bj))*maskZj
130 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldU(i,j,k,bi,bj)
131 ENDDO
132 ENDIF
133
134 DO j=1,sNy
135 DO i=1,sNx+1
136 tmpFldU(i,j,k,bi,bj) =
137 & -0.125 _d 0*tmpGrdU(i,j)*_maskW(i,j,k,bi,bj)
138 ENDDO
139 ENDDO
140
141 C Vyy + Vxx :
142 DO j=1,sNy+1
143 DO i=1,sNx
144 maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
145 maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
146 tmpGrdV(i,j) =
147 & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
148 & - 2.*tmpFldV(i,j,k,bi,bj)
149 & +(tmpFldV(i+1,j,k,bi,bj)-tmpFldV( i ,j,k,bi,bj))*maskZp
150 & -(tmpFldV( i ,j,k,bi,bj)-tmpFldV(i-1,j,k,bi,bj))*maskZj
151 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
152 ENDDO
153 ENDDO
154
155 IF (useCubedSphereExchange) THEN
156 DO j=1,sNy+1,sNy
157 i=1
158 maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
159 maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
160 tmpGrdV(i,j) =
161 & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
162 & - 2.*tmpFldV(i,j,k,bi,bj)
163 & +(tmpFldV(i+1,j,k,bi,bj)-tmpFldV( i ,j,k,bi,bj))*maskZp
164 & -(tmpFldV(i,j,k,bi,bj)-0*tmpFldV(i-1,j,k,bi,bj))*maskZj
165 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
166 i=sNx
167 maskZj=_maskW( i ,j-1,k,bi,bj)*_maskW( i , j ,k,bi,bj)
168 maskZp=_maskW(i+1,j-1,k,bi,bj)*_maskW(i+1, j ,k,bi,bj)
169 tmpGrdV(i,j) =
170 & tmpFldV(i,j-1,k,bi,bj) + tmpFldV(i,j+1,k,bi,bj)
171 & - 2.*tmpFldV(i,j,k,bi,bj)
172 & +(0*tmpFldV(i+1,j,k,bi,bj)-tmpFldV(i,j,k,bi,bj))*maskZp
173 & -(tmpFldV( i ,j,k,bi,bj)-tmpFldV(i-1,j,k,bi,bj))*maskZj
174 & -noSlipFact*(2.-maskZj-maskZp)*tmpFldV(i,j,k,bi,bj)
175 ENDDO
176 ENDIF
177
178 DO j=1,sNy+1
179 DO i=1,sNx
180 tmpFldV(i,j,k,bi,bj) =
181 & -0.125 _d 0*tmpGrdV(i,j)*_maskS(i,j,k,bi,bj)
182 ENDDO
183 ENDDO
184
185 ENDDO
186 ENDDO
187 ENDDO
188
189 ENDDO
190
191 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
192
193 C F <- [1 - (d_xx+d_yy)^n *deltaT/tau].F
194
195 DO bj=myByLo(myThid),myByHi(myThid)
196 DO bi=myBxLo(myThid),myBxHi(myThid)
197 DO k=1,kSize
198 DO j=1,sNy
199 DO i=1,sNx+1
200 uFld(i,j,k,bi,bj)=uFld(i,j,k,bi,bj)
201 & -tmpFldU(i,j,k,bi,bj)*deltaTmom/Shap_uvtau
202 ENDDO
203 ENDDO
204 DO j=1,sNy+1
205 DO i=1,sNx
206 vFld(i,j,k,bi,bj)=vFld(i,j,k,bi,bj)
207 & -tmpFldV(i,j,k,bi,bj)*deltaTmom/Shap_uvtau
208 ENDDO
209 ENDDO
210 ENDDO
211 ENDDO
212 ENDDO
213
214 IF (kSize.EQ.Nr) THEN
215 CALL EXCH_UV_XYZ_RL(uFld,vFld,.TRUE.,myThid)
216 ELSEIF (kSize.EQ.1) THEN
217 CALL EXCH_UV_XY_RL(uFld,vFld,.TRUE.,myThid)
218 ELSE
219 STOP 'S/R SHAP_FILT_UV_S2C: kSize is wrong'
220 ENDIF
221
222 ENDIF
223 #endif /* ALLOW_SHAP_FILT */
224
225 RETURN
226 END
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