/[MITgcm]/MITgcm/pkg/shap_filt/shap_filt_uv_s2c.F
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Revision 1.2 - (hide 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 jmc 1.2 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 jmc 1.1 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 jmc 1.2 & -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 jmc 1.1 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 jmc 1.2 & -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 jmc 1.1 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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