1 |
adcroft |
1.1 |
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2 |
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#include "GMREDI_OPTIONS.h" |
3 |
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4 |
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CStartOfInterface |
5 |
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SUBROUTINE GMREDI_SLOPE_LIMIT( |
6 |
jmc |
1.8 |
I dSigmaDrReal, |
7 |
heimbach |
1.13 |
I depthZ,K, |
8 |
adcroft |
1.1 |
U SlopeX, SlopeY, |
9 |
heimbach |
1.13 |
U dSigmaDx, dSigmaDy, |
10 |
jmc |
1.8 |
O SlopeSqr, taperFct, |
11 |
adcroft |
1.1 |
I bi,bj, myThid ) |
12 |
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C /==========================================================\ |
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C | SUBROUTINE GMREDI_SLOPE_LIMIT | |
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C | o Calculate slopes for use in GM/Redi tensor | |
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C |==========================================================| |
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C | On entry: | |
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jmc |
1.8 |
C | dSigmaDrReal conatins the d/dz Sigma | |
18 |
adcroft |
1.1 |
C | SlopeX/Y contains X/Y gradients of sigma | |
19 |
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C | depthZ conatins the height (m) of level | |
20 |
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C | On exit: | |
21 |
jmc |
1.8 |
C | dSigmaDrReal conatins the effective dSig/dz | |
22 |
adcroft |
1.1 |
C | SlopeX/Y contains X/Y slopes | |
23 |
jmc |
1.8 |
C | SlopeSqr contains Sx^2+Sy^2 | |
24 |
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C | taperFct contains tapering funct. value ; | |
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C | = 1 when using no tapering | |
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adcroft |
1.1 |
C \==========================================================/ |
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IMPLICIT NONE |
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29 |
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C == Global variables == |
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#include "SIZE.h" |
31 |
heimbach |
1.12 |
#include "GRID.h" |
32 |
adcroft |
1.1 |
#include "EEPARAMS.h" |
33 |
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#include "GMREDI.h" |
34 |
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#include "PARAMS.h" |
35 |
heimbach |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
36 |
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#include "tamc.h" |
37 |
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#include "tamc_keys.h" |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
39 |
adcroft |
1.1 |
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40 |
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C == Routine arguments == |
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C |
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_RL SlopeX(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
43 |
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_RL SlopeY(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
44 |
heimbach |
1.13 |
_RL dSigmaDx(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
45 |
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_RL dSigmaDy(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
46 |
adcroft |
1.1 |
_RL dSigmaDrReal(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
47 |
jmc |
1.8 |
_RL SlopeSqr(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
48 |
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_RL taperFct(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
49 |
adcroft |
1.1 |
_RL depthZ |
50 |
heimbach |
1.13 |
INTEGER bi,bj,K,myThid |
51 |
adcroft |
1.1 |
CEndOfInterface |
52 |
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53 |
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#ifdef ALLOW_GMREDI |
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C == Local variables == |
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_RL Small_Number |
57 |
heimbach |
1.12 |
_RL Small_Taper |
58 |
heimbach |
1.7 |
PARAMETER(Small_Number=1.D-12) |
59 |
heimbach |
1.12 |
PARAMETER(Small_Taper=1.D+03) |
60 |
heimbach |
1.10 |
_RL gradSmod(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
61 |
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_RL dSigmaDrLtd(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
62 |
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_RL dRdSigmaLtd(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
63 |
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_RL f1,Smod,f2,Rnondim,Cspd,Lrho |
64 |
jmc |
1.8 |
_RL maxSlopeSqr |
65 |
adcroft |
1.1 |
_RL fpi |
66 |
heimbach |
1.6 |
PARAMETER(fpi=3.141592653589793047592d0) |
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adcroft |
1.1 |
INTEGER i,j |
68 |
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69 |
heimbach |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
70 |
heimbach |
1.12 |
act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
74 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
76 |
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act4 = ikey_dynamics - 1 |
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ikey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
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& + act4*max1*max2*max3 |
80 |
heimbach |
1.10 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
81 |
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82 |
heimbach |
1.12 |
DO j=1-Oly+1,sNy+Oly-1 |
83 |
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DO i=1-Olx+1,sNx+Olx-1 |
84 |
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gradSmod(i,j) = 0. _d 0 |
85 |
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dSigmaDrLtd(i,j) = 0. _d 0 |
86 |
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ENDDO |
87 |
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ENDDO |
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89 |
jmc |
1.8 |
IF (GM_taper_scheme.EQ.'orig' .OR. |
90 |
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& GM_taper_scheme.EQ.'clipping') THEN |
91 |
adcroft |
1.1 |
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92 |
heimbach |
1.13 |
#if (defined (GM_TAPER_ORIG_CLIPPING)) |
93 |
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94 |
adcroft |
1.1 |
C- Original implementation in mitgcmuv |
95 |
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C (this turns out to be the same as Cox slope clipping) |
96 |
jmc |
1.8 |
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C- Cox 1987 "Slope clipping" |
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adcroft |
1.1 |
DO j=1-Oly+1,sNy+Oly-1 |
99 |
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DO i=1-Olx+1,sNx+Olx-1 |
100 |
heimbach |
1.13 |
IF ( DSigmaDX(i,j)*DSigmaDX(i,j) + |
101 |
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& DSigmaDY(i,j)*DSigmaDY(i,j) |
102 |
heimbach |
1.12 |
& .EQ. 0. ) THEN |
103 |
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gradSmod(i,j) = 0. _d 0 |
104 |
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ELSE |
105 |
heimbach |
1.13 |
gradSmod(i,j) = sqrt(DSigmaDX(i,j)*DSigmaDX(i,j) |
106 |
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& +DSigmaDY(i,j)*DSigmaDY(i,j)) |
107 |
heimbach |
1.12 |
ENDIF |
108 |
heimbach |
1.10 |
ENDDO |
109 |
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ENDDO |
110 |
adcroft |
1.1 |
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111 |
heimbach |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
112 |
heimbach |
1.13 |
cnostore CADJ STORE gradSmod(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
113 |
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cnostore CADJ STORE dSigmaDrReal(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
114 |
heimbach |
1.10 |
#endif |
115 |
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116 |
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DO j=1-Oly+1,sNy+Oly-1 |
117 |
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DO i=1-Olx+1,sNx+Olx-1 |
118 |
heimbach |
1.12 |
IF (gradSmod(i,j) .NE. 0.) THEN |
119 |
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dSigmaDrLtd(i,j) = -gradSmod(i,j)*GM_rMaxSlope |
120 |
heimbach |
1.13 |
IF ( dSigmaDrReal(i,j) .GE. |
121 |
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& GM_adjointRescale*dSigmaDrLtd(i,j) ) |
122 |
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& dSigmaDrReal(i,j) = |
123 |
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& dSigmaDrLtd(i,j)*GM_adjointRescale |
124 |
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ctest dSigmaDrReal(i,j) = dSigmaDrLtd(i,j) |
125 |
heimbach |
1.12 |
ENDIF |
126 |
heimbach |
1.10 |
ENDDO |
127 |
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ENDDO |
128 |
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129 |
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#ifdef ALLOW_AUTODIFF_TAMC |
130 |
heimbach |
1.13 |
cnostore CADJ STORE slopeX(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
131 |
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cnostore CADJ STORE slopeY(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
132 |
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cnostore CADJ STORE dSigmaDrReal(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
133 |
heimbach |
1.10 |
#endif |
134 |
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135 |
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DO j=1-Oly+1,sNy+Oly-1 |
136 |
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DO i=1-Olx+1,sNx+Olx-1 |
137 |
heimbach |
1.12 |
IF (gradSmod(i,j) .EQ. 0.) THEN |
138 |
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SlopeX(i,j) = 0. _d 0 |
139 |
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SlopeY(i,j) = 0. _d 0 |
140 |
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ELSE |
141 |
heimbach |
1.13 |
dRdSigmaLtd(i,j) = 1./( dSigmaDrReal(i,j) ) |
142 |
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SlopeX(i,j)=-DSigmaDX(i,j)*dRdSigmaLtd(i,j) |
143 |
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SlopeY(i,j)=-DSigmaDY(i,j)*dRdSigmaLtd(i,j) |
144 |
heimbach |
1.12 |
ENDIF |
145 |
heimbach |
1.10 |
ENDDO |
146 |
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ENDDO |
147 |
adcroft |
1.1 |
|
148 |
heimbach |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
149 |
heimbach |
1.13 |
cnostore CADJ STORE slopeX(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
150 |
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cnostore CADJ STORE slopeY(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
151 |
heimbach |
1.10 |
#endif |
152 |
jmc |
1.8 |
|
153 |
heimbach |
1.10 |
DO j=1-Oly+1,sNy+Oly-1 |
154 |
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DO i=1-Olx+1,sNx+Olx-1 |
155 |
jmc |
1.8 |
SlopeSqr(i,j)=SlopeX(i,j)*SlopeX(i,j) |
156 |
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& +SlopeY(i,j)*SlopeY(i,j) |
157 |
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taperFct(i,j)=1. _d 0 |
158 |
adcroft |
1.1 |
ENDDO |
159 |
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ENDDO |
160 |
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161 |
heimbach |
1.13 |
#else |
162 |
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163 |
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STOP 'Need to set runtime flag GM_taper_scheme correctly' |
164 |
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165 |
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#endif /* GM_TAPER_ORIG_CLIPPING */ |
166 |
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167 |
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ELSE IF (GM_taper_scheme.EQ.'ac02') THEN |
168 |
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169 |
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#if (defined (GM_TAPER_AC02)) |
170 |
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171 |
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DO j=1-Oly+1,sNy+Oly-1 |
172 |
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DO i=1-Olx+1,sNx+Olx-1 |
173 |
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dRdSigmaLtd(i,j)= |
174 |
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& dSigmaDx(i,j)*dSigmaDx(i,j) |
175 |
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& + dSigmaDy(i,j)*dSigmaDy(i,j) |
176 |
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& + dSigmaDrReal(i,j)**2 |
177 |
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ctest |
178 |
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IF (dRdSigmaLtd(i,j).NE.0.) then |
179 |
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dRdSigmaLtd(i,j)=1. _d 0 |
180 |
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& / ( dRdSigmaLtd(i,j) ) |
181 |
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SlopeSqr(i,j)=(dSigmaDx(i,j)*dSigmaDx(i,j) |
182 |
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& +dSigmaDy(i,j)*dSigmaDy(i,j))*dRdSigmaLtd(i,j) |
183 |
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SlopeX(i,j)=-dSigmaDx(i,j) |
184 |
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& *dRdSigmaLtd(i,j)*dSigmaDrReal(i,j) |
185 |
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SlopeY(i,j)=-dSigmaDy(i,j) |
186 |
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& *dRdSigmaLtd(i,j)*dSigmaDrReal(i,j) |
187 |
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cph T11(i,j)=(dSigmaDrReal(i,j)**2)*dRdSigmaLtd(i,j) |
188 |
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taperFct(i,j) = 1. _d 0 |
189 |
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cph ELSE |
190 |
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cph SlopeSqr(i,j) = 0. _d 0 |
191 |
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cph SlopeX(i,j) = 0. _d 0 |
192 |
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cph SlopeY(i,j) = 0. _d 0 |
193 |
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cph T11(i,j) = 0. _d 0 |
194 |
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cph taperFct(i,j) = 0. _d 0 |
195 |
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ENDIF |
196 |
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cph IF ( SlopeSqr(i,j) .GT. GM_maxSlope**2 ) THEN |
197 |
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cph taperFct(i,j) = GM_maxSlope**2/SlopeSqr(i,j) |
198 |
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cph ENDIF |
199 |
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ENDDO |
200 |
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ENDDO |
201 |
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202 |
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#else |
203 |
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204 |
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STOP 'Need to set runtime flag GM_taper_scheme correctly' |
205 |
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206 |
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#endif /* GM_TAPER_AC02 */ |
207 |
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208 |
jmc |
1.8 |
ELSE |
209 |
adcroft |
1.1 |
|
210 |
heimbach |
1.13 |
#if (defined (GM_TAPER_REST)) |
211 |
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212 |
heimbach |
1.12 |
C---------------------------------------------------------------------- |
213 |
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214 |
heimbach |
1.10 |
C- Compute the slope, no clipping, but avoid reverse slope in negatively |
215 |
jmc |
1.8 |
C stratified (Sigma_Z > 0) region : |
216 |
heimbach |
1.10 |
|
217 |
|
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#ifdef ALLOW_AUTODIFF_TAMC |
218 |
heimbach |
1.13 |
cnostore CADJ STORE dSigmaDrReal(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
219 |
heimbach |
1.10 |
#endif |
220 |
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221 |
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DO j=1-Oly+1,sNy+Oly-1 |
222 |
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DO i=1-Olx+1,sNx+Olx-1 |
223 |
heimbach |
1.12 |
IF ( dSigmaDrReal(i,j) .NE. 0. ) THEN |
224 |
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IF (dSigmaDrReal(i,j).GE.(-Small_Number)) |
225 |
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& dSigmaDrReal(i,j) = -Small_Number |
226 |
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ENDIF |
227 |
heimbach |
1.10 |
ENDDO |
228 |
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ENDDO |
229 |
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230 |
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#ifdef ALLOW_AUTODIFF_TAMC |
231 |
heimbach |
1.13 |
cnostore CADJ STORE dSigmaDx(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
232 |
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cnostore CADJ STORE dSigmaDy(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
233 |
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cnostore CADJ STORE dSigmaDrReal(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
234 |
heimbach |
1.10 |
#endif |
235 |
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|
236 |
adcroft |
1.1 |
DO j=1-Oly+1,sNy+Oly-1 |
237 |
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DO i=1-Olx+1,sNx+Olx-1 |
238 |
heimbach |
1.12 |
IF ( dSigmaDrReal(i,j) .EQ. 0. ) THEN |
239 |
heimbach |
1.13 |
IF ( dSigmaDx(i,j) .NE. 0. ) |
240 |
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& SlopeX(i,j) = SIGN(Small_taper,dSigmaDx(i,j)) |
241 |
|
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IF ( dSigmaDy(i,j) .NE. 0. ) |
242 |
|
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& SlopeY(i,j) = SIGN(Small_taper,dSigmaDy(i,j)) |
243 |
heimbach |
1.12 |
ELSE |
244 |
|
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dRdSigmaLtd(i,j) = 1./dSigmaDrReal(i,j) |
245 |
heimbach |
1.13 |
SlopeX(i,j) = -dSigmaDx(i,j)*dRdSigmaLtd(i,j) |
246 |
|
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SlopeY(i,j) = -dSigmaDy(i,j)*dRdSigmaLtd(i,j) |
247 |
heimbach |
1.12 |
ENDIF |
248 |
heimbach |
1.10 |
ENDDO |
249 |
|
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ENDDO |
250 |
adcroft |
1.1 |
|
251 |
heimbach |
1.10 |
#ifdef ALLOW_AUTODIFF_TAMC |
252 |
heimbach |
1.13 |
cnostore CADJ STORE slopeX(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
253 |
|
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cnostore CADJ STORE slopeY(:,:) = comlev1_bibj, key=ikey, byte=isbyte |
254 |
heimbach |
1.10 |
#endif |
255 |
jmc |
1.8 |
|
256 |
heimbach |
1.10 |
DO j=1-Oly+1,sNy+Oly-1 |
257 |
|
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DO i=1-Olx+1,sNx+Olx-1 |
258 |
heimbach |
1.12 |
SlopeSqr(i,j) = SlopeX(i,j)*SlopeX(i,j) |
259 |
|
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& +SlopeY(i,j)*SlopeY(i,j) |
260 |
|
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taperFct(i,j) = 1. _d 0 |
261 |
jmc |
1.8 |
ENDDO |
262 |
|
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ENDDO |
263 |
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|
264 |
|
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C- Compute the tapering function for the GM+Redi tensor : |
265 |
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266 |
|
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IF (GM_taper_scheme.EQ.'linear') THEN |
267 |
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|
268 |
|
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C- Simplest adiabatic tapering = Smax/Slope (linear) |
269 |
|
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maxSlopeSqr = GM_maxSlope*GM_maxSlope |
270 |
|
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DO j=1-Oly+1,sNy+Oly-1 |
271 |
|
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DO i=1-Olx+1,sNx+Olx-1 |
272 |
adcroft |
1.1 |
|
273 |
heimbach |
1.12 |
IF ( SlopeSqr(i,j) .EQ. 0. ) THEN |
274 |
|
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taperFct(i,j) = 1. _d 0 |
275 |
|
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ELSE IF ( SlopeSqr(i,j) .GT. maxSlopeSqr ) THEN |
276 |
|
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taperFct(i,j) = sqrt(maxSlopeSqr / SlopeSqr(i,j)) |
277 |
|
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ENDIF |
278 |
adcroft |
1.1 |
|
279 |
|
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ENDDO |
280 |
|
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ENDDO |
281 |
|
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|
282 |
jmc |
1.8 |
ELSEIF (GM_taper_scheme.EQ.'gkw91') THEN |
283 |
adcroft |
1.1 |
|
284 |
|
|
C- Gerdes, Koberle and Willebrand, Clim. Dyn. 1991 |
285 |
jmc |
1.8 |
maxSlopeSqr = GM_maxSlope*GM_maxSlope |
286 |
adcroft |
1.1 |
DO j=1-Oly+1,sNy+Oly-1 |
287 |
|
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DO i=1-Olx+1,sNx+Olx-1 |
288 |
|
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|
289 |
heimbach |
1.12 |
IF ( SlopeSqr(i,j) .EQ. 0. ) THEN |
290 |
|
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taperFct(i,j) = 1. _d 0 |
291 |
|
|
ELSE IF ( SlopeSqr(i,j) .GT. maxSlopeSqr ) THEN |
292 |
|
|
taperFct(i,j) = maxSlopeSqr/SlopeSqr(i,j) |
293 |
|
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ENDIF |
294 |
adcroft |
1.1 |
|
295 |
|
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ENDDO |
296 |
|
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ENDDO |
297 |
|
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|
298 |
jmc |
1.8 |
ELSEIF (GM_taper_scheme.EQ.'dm95') THEN |
299 |
adcroft |
1.1 |
|
300 |
|
|
C- Danabasoglu and McWilliams, J. Clim. 1995 |
301 |
|
|
DO j=1-Oly+1,sNy+Oly-1 |
302 |
|
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DO i=1-Olx+1,sNx+Olx-1 |
303 |
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|
304 |
heimbach |
1.12 |
IF ( SlopeSqr(i,j) .EQ. 0. ) THEN |
305 |
|
|
taperFct(i,j) = 1. _d 0 |
306 |
|
|
ELSE |
307 |
|
|
Smod=sqrt(SlopeSqr(i,j)) |
308 |
|
|
taperFct(i,j)=0.5*(1.+tanh( (GM_Scrit-Smod)/GM_Sd )) |
309 |
|
|
ENDIF |
310 |
adcroft |
1.1 |
ENDDO |
311 |
|
|
ENDDO |
312 |
|
|
|
313 |
jmc |
1.8 |
ELSEIF (GM_taper_scheme.EQ.'ldd97') THEN |
314 |
adcroft |
1.1 |
|
315 |
|
|
C- Large, Danabasoglu and Doney, JPO 1997 |
316 |
|
|
DO j=1-Oly+1,sNy+Oly-1 |
317 |
|
|
DO i=1-Olx+1,sNx+Olx-1 |
318 |
|
|
|
319 |
heimbach |
1.12 |
IF (SlopeSqr(i,j) .EQ. 0.) THEN |
320 |
|
|
taperFct(i,j) = 1. _d 0 |
321 |
|
|
ELSE |
322 |
|
|
Smod=sqrt(SlopeSqr(i,j)) |
323 |
|
|
f1=0.5*(1.+tanh( (GM_Scrit-Smod)/GM_Sd )) |
324 |
|
|
Cspd=2. |
325 |
|
|
Lrho=100. _d 3 |
326 |
|
|
if (FCori(i,j,bi,bj).NE.0.) Lrho=Cspd/abs(Fcori(i,j,bi,bj)) |
327 |
|
|
Lrho=min(Lrho , 100. _d 3) |
328 |
|
|
Lrho=max(Lrho , 15. _d 3) |
329 |
|
|
Rnondim=depthZ/(Lrho*Smod) |
330 |
|
|
f2=0.5*(1.+sin( fpi*(Rnondim-0.5))) |
331 |
|
|
taperFct(i,j)=f1*f2 |
332 |
|
|
ENDIF |
333 |
adcroft |
1.1 |
|
334 |
|
|
ENDDO |
335 |
|
|
ENDDO |
336 |
|
|
|
337 |
jmc |
1.9 |
ELSEIF (GM_taper_scheme.NE.' ') THEN |
338 |
|
|
STOP 'GMREDI_SLOPE_LIMIT: Bad GM_taper_scheme' |
339 |
jmc |
1.8 |
ENDIF |
340 |
heimbach |
1.13 |
|
341 |
|
|
#endif |
342 |
adcroft |
1.1 |
|
343 |
jmc |
1.8 |
ENDIF |
344 |
adcroft |
1.1 |
|
345 |
|
|
|
346 |
|
|
#endif /* ALLOW_GMREDI */ |
347 |
|
|
|
348 |
|
|
RETURN |
349 |
|
|
END |