/[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 1.2 - (show annotations) (download)
Tue Feb 15 00:21:12 2005 UTC (19 years, 3 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint62v, checkpoint57m_post, checkpoint62u, checkpoint57g_pre, checkpoint62t, checkpoint57s_post, checkpoint58b_post, checkpoint57g_post, checkpoint57y_post, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint62c, checkpoint57r_post, checkpoint57i_post, checkpoint59, checkpoint58, checkpoint58f_post, checkpoint57n_post, checkpoint58d_post, checkpoint62s, checkpoint58a_post, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint57z_post, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62w, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint58y_post, checkpoint58t_post, checkpoint58m_post, checkpoint57l_post, checkpoint57t_post, checkpoint63g, checkpoint57v_post, checkpoint57f_post, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint57h_pre, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint58w_post, checkpoint57h_post, checkpoint57y_pre, checkpoint58o_post, checkpoint58p_post, checkpoint58q_post, checkpoint58e_post, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint58r_post, checkpoint58n_post, checkpoint57e_post, checkpoint65o, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, checkpoint57p_post, checkpint57u_post, checkpoint57q_post, eckpoint57e_pre, checkpoint58k_post, checkpoint62b, checkpoint58v_post, checkpoint64y, checkpoint64x, checkpoint58l_post, checkpoint64z, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint57h_done, checkpoint57j_post, checkpoint57f_pre, checkpoint61f, checkpoint58g_post, checkpoint58x_post, checkpoint61n, checkpoint59j, checkpoint58h_post, checkpoint58j_post, checkpoint57o_post, checkpoint61q, checkpoint57k_post, checkpoint57w_post, checkpoint61e, checkpoint58i_post, checkpoint57x_post, checkpoint58c_post, checkpoint58u_post, checkpoint58s_post, checkpoint61g, checkpoint61d, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61z, checkpoint61x, checkpoint61y, HEAD
Changes since 1.1: +5 -3 lines 
return filter tendency as output (in temporary array)
1 C $Header: /u/gcmpack/MITgcm/pkg/shap_filt/shap_filt_uv_s2c.F,v 1.1 2002/03/04 01:25:02 jmc Exp $
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 tmpFldU(i,j,k,bi,bj)= -tmpFldU(i,j,k,bi,bj)/Shap_uvtau
203 ENDDO
204 ENDDO
205 DO j=1,sNy+1
206 DO i=1,sNx
207 vFld(i,j,k,bi,bj)=vFld(i,j,k,bi,bj)
208 & -tmpFldV(i,j,k,bi,bj)*deltaTmom/Shap_uvtau
209 tmpFldV(i,j,k,bi,bj)= -tmpFldV(i,j,k,bi,bj)/Shap_uvtau
210 ENDDO
211 ENDDO
212 ENDDO
213 ENDDO
214 ENDDO
215
216 IF (kSize.EQ.Nr) THEN
217 CALL EXCH_UV_XYZ_RL(uFld,vFld,.TRUE.,myThid)
218 ELSEIF (kSize.EQ.1) THEN
219 CALL EXCH_UV_XY_RL(uFld,vFld,.TRUE.,myThid)
220 ELSE
221 STOP 'S/R SHAP_FILT_UV_S2C: kSize is wrong'
222 ENDIF
223
224 ENDIF
225 #endif /* ALLOW_SHAP_FILT */
226
227 RETURN
228 END
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