2 |
C $Name$ |
C $Name$ |
3 |
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4 |
#include "EXF_OPTIONS.h" |
#include "EXF_OPTIONS.h" |
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#undef OLD_EXF_INTERP_LAT_INDEX |
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C==========================================* |
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C Flux Coupler using | |
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C Bilinear interpolation of forcing fields | |
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C | |
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C B. Cheng (12/2002) | |
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C | |
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C added Bicubic (bnc 1/2003) | |
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C | |
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C==========================================* |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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_RL FUNCTION LAGRAN(i,x,a,sp) |
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IMPLICIT NONE |
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INTEGER i |
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_RS x |
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_RL a(4) |
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INTEGER sp |
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C- local variables: |
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INTEGER k |
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_RL numer,denom |
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numer = 1. _d 0 |
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denom = 1. _d 0 |
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#ifdef TARGET_NEC_SX |
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!CDIR UNROLL=8 |
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#endif /* TARGET_NEC_SX */ |
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DO k=1,sp |
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IF ( k .NE. i) THEN |
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denom = denom*(a(i) - a(k)) |
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numer = numer*(x - a(k)) |
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ENDIF |
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ENDDO |
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LAGRAN = numer/denom |
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RETURN |
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END |
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5 |
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6 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
7 |
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9 |
C !ROUTINE: EXF_INTERP |
C !ROUTINE: EXF_INTERP |
10 |
C !INTERFACE: |
C !INTERFACE: |
11 |
SUBROUTINE EXF_INTERP( |
SUBROUTINE EXF_INTERP( |
12 |
I inFile, |
I inFile, filePrec, |
|
I filePrec, |
|
13 |
O arrayout, |
O arrayout, |
14 |
I irecord, xG_in, yG, |
I irecord, xG_in, yG, |
15 |
I lon_0, lon_inc, |
I lon_0, lon_inc, lat_0, lat_inc, |
16 |
I lat_0, lat_inc, |
I nxIn, nyIn, method, myIter, myThid ) |
|
I nxIn, nyIn, method, myThid ) |
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17 |
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18 |
C !DESCRIPTION: \bv |
C !DESCRIPTION: \bv |
19 |
C *==========================================================* |
C *==========================================================* |
29 |
#include "SIZE.h" |
#include "SIZE.h" |
30 |
#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
31 |
#include "PARAMS.h" |
#include "PARAMS.h" |
32 |
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#ifdef ALLOW_DEBUG |
33 |
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# include "EXF_PARAM.h" |
34 |
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#endif |
35 |
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36 |
C !INPUT/OUTPUT PARAMETERS: |
C !INPUT/OUTPUT PARAMETERS: |
37 |
C inFile (string) :: name of the binary input file (direct access) |
C inFile (string) :: name of the binary input file (direct access) |
45 |
C nxIn,nyIn (integer) :: size in x & y direction of input file to read |
C nxIn,nyIn (integer) :: size in x & y direction of input file to read |
46 |
C method :: 1,11,21 for bilinear; 2,12,22 for bicubic |
C method :: 1,11,21 for bilinear; 2,12,22 for bicubic |
47 |
C :: 1,2 for tracer; 11,12 for U; 21,22 for V |
C :: 1,2 for tracer; 11,12 for U; 21,22 for V |
48 |
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C myIter (integer) :: current iteration number |
49 |
C myThid (integer) :: My Thread Id number |
C myThid (integer) :: My Thread Id number |
50 |
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|
51 |
CHARACTER*(*) infile |
CHARACTER*(*) inFile |
52 |
INTEGER filePrec, irecord, nxIn, nyIn |
INTEGER filePrec, irecord, nxIn, nyIn |
53 |
_RL arrayout(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RL arrayout(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
54 |
_RS xG_in (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RS xG_in (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
56 |
_RL lon_0, lon_inc |
_RL lon_0, lon_inc |
57 |
c _RL lat_0, lat_inc(nyIn-1) |
c _RL lat_0, lat_inc(nyIn-1) |
58 |
_RL lat_0, lat_inc(*) |
_RL lat_0, lat_inc(*) |
59 |
INTEGER method, myThid |
INTEGER method, myIter, myThid |
60 |
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|
61 |
C !FUNCTIONS: |
C !FUNCTIONS: |
62 |
EXTERNAL LAGRAN |
#ifdef ALLOW_DEBUG |
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_RL LAGRAN |
|
63 |
INTEGER ILNBLNK |
INTEGER ILNBLNK |
64 |
EXTERNAL ILNBLNK |
EXTERNAL ILNBLNK |
65 |
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#endif |
66 |
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67 |
C !LOCAL VARIABLES: |
C !LOCAL VARIABLES: |
68 |
C msgBuf :: Informational/error message buffer |
C arrayin :: input field array (loaded from file) |
69 |
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C x_in :: longitude vector defining input field grid |
70 |
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C y_in :: latitude vector defining input field grid |
71 |
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C w_ind :: input field longitudinal index, on western side of model grid pt |
72 |
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C s_ind :: input field latitudinal index, on southern side of model grid pt |
73 |
C bi, bj :: tile indices |
C bi, bj :: tile indices |
74 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
C i, j, k, l :: loop indices |
75 |
INTEGER bi, bj |
C msgBuf :: Informational/error message buffer |
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INTEGER w_ind(sNx,sNy), s_ind(sNx,sNy) |
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_RL px_ind(4), py_ind(4), ew_val(4) |
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76 |
_RL arrayin( -1:nxIn+2, -1:nyIn+2 ) |
_RL arrayin( -1:nxIn+2, -1:nyIn+2 ) |
77 |
_RL x_in(-1:nxIn+2), y_in(-1:nyIn+2) |
_RL x_in(-1:nxIn+2), y_in(-1:nyIn+2) |
78 |
_RL NorthValue |
INTEGER w_ind(sNx,sNy), s_ind(sNx,sNy) |
79 |
INTEGER i, j, k, l, sp |
INTEGER bi, bj |
80 |
#ifdef OLD_EXF_INTERP_LAT_INDEX |
INTEGER i, j, k, l |
|
INTEGER js |
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#else |
|
81 |
INTEGER nLoop |
INTEGER nLoop |
82 |
#endif |
_RL tmpVar |
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#ifdef TARGET_NEC_SX |
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INTEGER ic, ii, icnt |
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INTEGER inx(sNx*sNy,2) |
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_RL ew_val1, ew_val2, ew_val3, ew_val4 |
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#endif |
|
83 |
_RS xG(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RS xG(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
|
_RL ninety |
|
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PARAMETER ( ninety = 90. ) |
|
84 |
_RS threeSixtyRS |
_RS threeSixtyRS |
85 |
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_RL yPole, symSign, poleValue |
86 |
PARAMETER ( threeSixtyRS = 360. ) |
PARAMETER ( threeSixtyRS = 360. ) |
87 |
LOGICAL xIsPeriodic |
PARAMETER ( yPole = 90. ) |
88 |
|
INTEGER nxd2 |
89 |
|
LOGICAL xIsPeriodic, poleSymmetry |
90 |
|
#ifdef ALLOW_DEBUG |
91 |
|
LOGICAL debugFlag |
92 |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
93 |
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_RS prtPole(-1:4) |
94 |
|
#endif |
95 |
CEOP |
CEOP |
96 |
|
|
97 |
C-- put xG in interval [ lon_0 , lon_0+360 [ |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
98 |
DO bj=myByLo(myThid),myByHi(myThid) |
C--- Load inut field |
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
|
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DO j=1-OLy,sNy+OLy |
|
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DO i=1-OLx,sNx+OLx |
|
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xG(i,j,bi,bj) = xG_in(i,j,bi,bj)-lon_0 |
|
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& + threeSixtyRS*2. |
|
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xG(i,j,bi,bj) = lon_0+MOD(xG(i,j,bi,bj),threeSixtyRS) |
|
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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99 |
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C-- Load inut field |
|
100 |
CALL EXF_INTERP_READ( |
CALL EXF_INTERP_READ( |
101 |
I inFile, filePrec, |
I inFile, filePrec, |
102 |
O arrayin, |
O arrayin, |
103 |
I irecord, nxIn, nyIn, myThid ) |
I irecord, nxIn, nyIn, myThid ) |
104 |
|
|
105 |
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
106 |
|
C--- Prepare input grid and input field |
107 |
|
|
108 |
C-- setup input longitude grid |
C-- setup input longitude grid |
109 |
DO i=-1,nxIn+2 |
DO i=-1,nxIn+2 |
110 |
x_in(i) = lon_0 + (i-1)*lon_inc |
x_in(i) = lon_0 + (i-1)*lon_inc |
111 |
ENDDO |
ENDDO |
112 |
xIsPeriodic = nxIn.EQ.NINT( threeSixtyRS / lon_inc ) |
xIsPeriodic = nxIn.EQ.NINT( threeSixtyRS / lon_inc ) |
113 |
|
nxd2 = NINT( nxIn*0.5 ) |
114 |
|
poleSymmetry = xIsPeriodic .AND. ( nxIn.EQ.2*nxd2 ) |
115 |
|
#ifdef EXF_USE_OLD_INTERP_POLE |
116 |
|
poleSymmetry = .FALSE. |
117 |
|
#endif |
118 |
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|
119 |
C-- setup input latitude grid |
C-- setup input latitude grid |
120 |
y_in(1) = lat_0 |
y_in(1) = lat_0 |
122 |
i = MIN(j,nyIn-1) |
i = MIN(j,nyIn-1) |
123 |
y_in(j+1) = y_in(j) + lat_inc(i) |
y_in(j+1) = y_in(j) + lat_inc(i) |
124 |
ENDDO |
ENDDO |
|
C- Add 2 row @ southern end; if one is beyond S.pole, put one @ S.pole |
|
125 |
y_in(0) = y_in(1) - lat_inc(1) |
y_in(0) = y_in(1) - lat_inc(1) |
126 |
y_in(-1)= y_in(0) - lat_inc(1) |
y_in(-1)= y_in(0) - lat_inc(1) |
127 |
c IF ( y_in(1).GT.-ninety .AND. y_in(0).LT.-ninety ) THEN |
#ifdef ALLOW_DEBUG |
128 |
c y_in(0) = -ninety |
DO l=-1,4 |
129 |
c y_in(-1) = -2.*ninety - y_in(1) |
prtPole(l) = 0. |
130 |
c ENDIF |
ENDDO |
131 |
c IF ( y_in(0).GT.-ninety .AND. y_in(-1).LT.-ninety ) THEN |
#endif |
132 |
c y_in(-1) = -ninety |
C-- For tracer (method=1,2) add 1 row @ the pole (if last row is not) |
133 |
c ENDIF |
C and will fill it with the polarmost-row zonally averaged value. |
134 |
|
C For vector component, cannot do much without the other component; |
135 |
|
C averaging properly done if uvInterp=T in S/R EXF_INTERP_UV |
136 |
|
#ifdef EXF_USE_OLD_INTERP_POLE |
137 |
|
IF ( .TRUE. ) THEN |
138 |
|
#else |
139 |
|
IF ( method.LT.10 ) THEN |
140 |
|
C- Add 2 row @ southern end; if one is beyond S.pole, put one @ S.pole |
141 |
|
j = 0 |
142 |
|
IF ( ABS(y_in(j+1)).LT.yPole .AND. ABS(y_in(j)).GT.yPole ) THEN |
143 |
|
y_in(j) = -yPole |
144 |
|
y_in(j-1) = -2.*yPole - y_in(1) |
145 |
|
#ifdef ALLOW_DEBUG |
146 |
|
prtPole(j) = 1. |
147 |
|
prtPole(j-1) = 2. |
148 |
|
#endif |
149 |
|
ENDIF |
150 |
|
j = -1 |
151 |
|
IF ( ABS(y_in(j+1)).GT.yPole .AND. ABS(y_in(j)).GT.yPole ) THEN |
152 |
|
y_in(j) = -yPole |
153 |
|
#ifdef ALLOW_DEBUG |
154 |
|
prtPole(j) = 1. |
155 |
|
#endif |
156 |
|
ENDIF |
157 |
|
#endif /* EXF_USE_OLD_INTERP_POLE */ |
158 |
C- Add 2 row @ northern end; if one is beyond N.pole, put one @ N.pole |
C- Add 2 row @ northern end; if one is beyond N.pole, put one @ N.pole |
159 |
j = nyIn+1 |
j = nyIn+1 |
160 |
IF ( y_in(j-1).LT.ninety .AND. y_in(j).GT.ninety ) THEN |
IF ( ABS(y_in(j-1)).LT.yPole .AND. ABS(y_in(j)).GT.yPole ) THEN |
161 |
y_in(j) = ninety |
y_in(j) = yPole |
162 |
y_in(j+1) = 2.*ninety - y_in(j-1) |
y_in(j+1) = 2.*yPole - y_in(j-1) |
163 |
ENDIF |
#ifdef ALLOW_DEBUG |
164 |
j = nyIn+2 |
prtPole(3) = 1. |
165 |
IF ( y_in(j-1).LT.ninety .AND. y_in(j).GT.ninety ) THEN |
prtPole(3+1) = 2. |
166 |
y_in(j) = ninety |
#endif |
167 |
|
ENDIF |
168 |
|
j = nyIn+2 |
169 |
|
IF ( ABS(y_in(j-1)).LT.yPole .AND. ABS(y_in(j)).GT.yPole ) THEN |
170 |
|
y_in(j) = yPole |
171 |
|
#ifdef ALLOW_DEBUG |
172 |
|
prtPole(4) = 1. |
173 |
|
#endif |
174 |
|
ENDIF |
175 |
ENDIF |
ENDIF |
176 |
|
|
177 |
C-- enlarge boundary |
C-- Enlarge boundary |
178 |
IF ( xIsPeriodic ) THEN |
IF ( xIsPeriodic ) THEN |
179 |
|
C- fill-in added column assuming periodicity |
180 |
DO j=1,nyIn |
DO j=1,nyIn |
181 |
arrayin( 0,j) = arrayin(nxIn ,j) |
arrayin( 0,j) = arrayin(nxIn ,j) |
182 |
arrayin(-1,j) = arrayin(nxIn-1,j) |
arrayin(-1,j) = arrayin(nxIn-1,j) |
184 |
arrayin(nxIn+2,j) = arrayin(2,j) |
arrayin(nxIn+2,j) = arrayin(2,j) |
185 |
ENDDO |
ENDDO |
186 |
ELSE |
ELSE |
187 |
|
C- fill-in added column from nearest column |
188 |
DO j=1,nyIn |
DO j=1,nyIn |
189 |
arrayin( 0,j) = arrayin(1,j) |
arrayin( 0,j) = arrayin(1,j) |
190 |
arrayin(-1,j) = arrayin(1,j) |
arrayin(-1,j) = arrayin(1,j) |
192 |
arrayin(nxIn+2,j) = arrayin(nxIn,j) |
arrayin(nxIn+2,j) = arrayin(nxIn,j) |
193 |
ENDDO |
ENDDO |
194 |
ENDIF |
ENDIF |
195 |
DO i=-1,nxIn+2 |
symSign = 1. _d 0 |
196 |
arrayin(i, 0) = arrayin(i,1) |
IF ( method.GE.10 ) symSign = -1. _d 0 |
197 |
arrayin(i,-1) = arrayin(i,1) |
DO l=-1,2 |
198 |
arrayin(i,nyIn+1) = arrayin(i,nyIn) |
j = l |
199 |
arrayin(i,nyIn+2) = arrayin(i,nyIn) |
IF ( l.GE.1 ) j = nyIn+l |
200 |
|
k = MAX(1,MIN(j,nyIn)) |
201 |
|
IF ( poleSymmetry .AND. ABS(y_in(j)).GT.yPole ) THEN |
202 |
|
C- fill-in added row assuming pole-symmetry |
203 |
|
DO i=-1,nxd2 |
204 |
|
arrayin(i,j) = symSign*arrayin(i+nxd2,k) |
205 |
|
ENDDO |
206 |
|
DO i=1,nxd2+2 |
207 |
|
arrayin(i+nxd2,j) = symSign*arrayin(i,k) |
208 |
|
ENDDO |
209 |
|
#ifdef ALLOW_DEBUG |
210 |
|
i = l + 2*( (l+1)/2 ) |
211 |
|
prtPole(i) = prtPole(i) + 0.2 |
212 |
|
#endif |
213 |
|
ELSE |
214 |
|
C- fill-in added row from nearest column values |
215 |
|
DO i=-1,nxIn+2 |
216 |
|
arrayin(i,j) = arrayin(i,k) |
217 |
|
ENDDO |
218 |
|
ENDIF |
219 |
ENDDO |
ENDDO |
220 |
|
|
221 |
C- For tracer (method=1,2) set to northernmost zonal-mean value |
C-- For tracer (method=1,2) set to northernmost zonal-mean value |
222 |
C at 90N to avoid sharp zonal gradients near the Pole. |
C at 90N to avoid sharp zonal gradients near the Pole. |
223 |
C For U (method=11,12) set to zero at 90N to minimize velocity |
C For vector component, cannot do much without the other component; |
224 |
C gradient at North Pole |
C averaging properly done if uvInterp=T in S/R EXF_INTERP_UV |
225 |
C For V (method=11,12) set to northernmost zonal value at 90N, |
#ifdef EXF_USE_OLD_INTERP_POLE |
226 |
C as is already done above in order to allow cross-PoleArctic flow |
IF ( .TRUE. ) THEN |
227 |
DO j=nyIn,nyIn+2 |
DO l= 3,4 |
228 |
IF (y_in(j).EQ.ninety) THEN |
#else |
229 |
IF (method.EQ.1 .OR. method.EQ.2) THEN |
IF ( method.LT.10 ) THEN |
230 |
NorthValue = 0. |
DO l=-1,4 |
231 |
DO i=1,nxIn |
#endif |
232 |
NorthValue = NorthValue + arrayin(i,j) |
j = l |
233 |
ENDDO |
IF ( l.GE.2 ) j = nyIn+l-2 |
234 |
NorthValue = NorthValue / nxIn |
IF ( ABS(y_in(j)).EQ.yPole ) THEN |
235 |
DO i=-1,nxIn+2 |
IF (method.EQ.1 .OR. method.EQ.2) THEN |
236 |
arrayin(i,j) = NorthValue |
poleValue = 0. |
237 |
ENDDO |
DO i=1,nxIn |
238 |
ELSEIF (method.EQ.11 .OR. method.EQ.12) THEN |
poleValue = poleValue + arrayin(i,j) |
239 |
DO i=-1,nxIn+2 |
ENDDO |
240 |
arrayin(i,j) = 0. |
poleValue = poleValue / nxIn |
241 |
ENDDO |
DO i=-1,nxIn+2 |
242 |
|
arrayin(i,j) = poleValue |
243 |
|
ENDDO |
244 |
|
#ifdef ALLOW_DEBUG |
245 |
|
prtPole(l) = prtPole(l) + 0.1 |
246 |
|
#endif |
247 |
|
#ifdef EXF_USE_OLD_INTERP_POLE |
248 |
|
ELSEIF (method.EQ.11 .OR. method.EQ.12) THEN |
249 |
|
DO i=-1,nxIn+2 |
250 |
|
arrayin(i,j) = 0. |
251 |
|
ENDDO |
252 |
|
#ifdef ALLOW_DEBUG |
253 |
|
prtPole(l) = prtPole(l) + 0.9 |
254 |
|
#endif |
255 |
|
#endif /* EXF_USE_OLD_INTERP_POLE */ |
256 |
|
ENDIF |
257 |
ENDIF |
ENDIF |
258 |
ENDIF |
ENDDO |
259 |
ENDDO |
ENDIF |
260 |
|
|
261 |
DO bj = myByLo(myThid), myByHi(myThid) |
#ifdef ALLOW_DEBUG |
262 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
debugFlag = ( exf_debugLev.GE.debLevC ) |
263 |
|
& .OR. ( exf_debugLev.GE.debLevB .AND. myIter.LE.nIter0 ) |
264 |
|
C prtPole(l)=0 : extended, =1 : changed to pole, =2 : changed to symetric |
265 |
|
IF ( debugFlag ) THEN |
266 |
|
l = ILNBLNK(inFile) |
267 |
|
_BEGIN_MASTER(myThid) |
268 |
|
WRITE(msgBuf,'(3A,I6,A,2L5)') |
269 |
|
& 'EXF_INTERP: file="',inFile(1:l),'", rec=', irecord, |
270 |
|
& ' , x-Per,P.Sym=', xIsPeriodic, poleSymmetry |
271 |
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
272 |
|
& SQUEEZE_RIGHT, myThid ) |
273 |
|
WRITE(msgBuf,'(2A,3F4.1,A,3F12.6)') 'S.edge (j=-1,0,1) :', |
274 |
|
& ' proc=', (prtPole(j),j=-1,1), ', yIn=', (y_in(j),j=-1,1) |
275 |
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
276 |
|
& SQUEEZE_RIGHT, myThid ) |
277 |
|
WRITE(msgBuf,'(2A,3F4.1,A,3F12.6)') 'N.edge (j=+0,+1,+2)', |
278 |
|
& ' proc=', (prtPole(j),j=2,4), ', yIn=',(y_in(j),j=nyIn,nyIn+2) |
279 |
|
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
280 |
|
& SQUEEZE_RIGHT, myThid ) |
281 |
|
_END_MASTER(myThid) |
282 |
|
ENDIF |
283 |
|
#endif /* ALLOW_DEBUG */ |
284 |
|
|
285 |
C-- Check validity of input/output coordinates |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
286 |
|
C--- Prepare output grid and interpolate for each tile |
287 |
|
|
288 |
|
C-- put xG in interval [ lon_0 , lon_0+360 [ |
289 |
|
DO bj=myByLo(myThid),myByHi(myThid) |
290 |
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
291 |
|
DO j=1-OLy,sNy+OLy |
292 |
|
DO i=1-OLx,sNx+OLx |
293 |
|
xG(i,j,bi,bj) = xG_in(i,j,bi,bj)-lon_0 |
294 |
|
& + threeSixtyRS*2. |
295 |
|
xG(i,j,bi,bj) = lon_0+MOD(xG(i,j,bi,bj),threeSixtyRS) |
296 |
|
ENDDO |
297 |
|
ENDDO |
298 |
#ifdef ALLOW_DEBUG |
#ifdef ALLOW_DEBUG |
299 |
IF ( debugLevel.GE.debLevC ) THEN |
C-- Check validity of input/output coordinates |
300 |
|
IF ( debugFlag ) THEN |
301 |
DO j=1,sNy |
DO j=1,sNy |
302 |
DO i=1,sNx |
DO i=1,sNx |
303 |
IF ( xG(i,j,bi,bj) .LT. x_in(0) .OR. |
IF ( xG(i,j,bi,bj) .LT. x_in(0) .OR. |
326 |
ENDDO |
ENDDO |
327 |
ENDIF |
ENDIF |
328 |
#endif /* ALLOW_DEBUG */ |
#endif /* ALLOW_DEBUG */ |
329 |
|
ENDDO |
330 |
|
ENDDO |
331 |
|
|
332 |
C-- Compute interpolation indices |
DO bj = myByLo(myThid), myByHi(myThid) |
333 |
#ifdef OLD_EXF_INTERP_LAT_INDEX |
DO bi = myBxLo(myThid), myBxHi(myThid) |
334 |
DO j=1,sNy |
|
335 |
DO i=1,sNx |
C-- Compute interpolation lon & lat index mapping |
|
IF (xG(i,j,bi,bj)-x_in(1) .GE. 0.) THEN |
|
|
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(1))/lon_inc) + 1 |
|
|
ELSE |
|
|
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(1))/lon_inc) |
|
|
ENDIF |
|
|
ENDDO |
|
|
ENDDO |
|
|
#ifndef TARGET_NEC_SX |
|
|
C- use the original and more readable variant of the algorithm that |
|
|
C has unvectorizable while-loops for each (i,j) |
|
|
DO j=1,sNy |
|
|
DO i=1,sNx |
|
|
js = nyIn*.5 |
|
|
DO WHILE (yG(i,j,bi,bj) .LT. y_in(js)) |
|
|
js = (js - 1)*.5 |
|
|
ENDDO |
|
|
DO WHILE (yG(i,j,bi,bj) .GE. y_in(js+1)) |
|
|
js = js + 1 |
|
|
ENDDO |
|
|
s_ind(i,j) = js |
|
|
ENDDO |
|
|
ENDDO |
|
|
#else /* TARGET_NEC_SX defined */ |
|
|
C- this variant vectorizes more efficiently than the original one because |
|
|
C it moves the while loops out of the i,j loops (loop pushing) but |
|
|
C it is ugly and incomprehensible |
|
|
icnt = 0 |
|
|
DO j=1,sNy |
|
|
DO i=1,sNx |
|
|
s_ind(i,j) = nyIn*.5 |
|
|
icnt = icnt+1 |
|
|
inx(icnt,1) = i |
|
|
inx(icnt,2) = j |
|
|
ENDDO |
|
|
ENDDO |
|
|
DO WHILE (icnt .GT. 0) |
|
|
ii = 0 |
|
|
!CDIR NODEP |
|
|
DO ic=1,icnt |
|
|
i = inx(ic,1) |
|
|
j = inx(ic,2) |
|
|
IF (yG(i,j,bi,bj) .LT. y_in(s_ind(i,j))) THEN |
|
|
s_ind(i,j) = (s_ind(i,j) - 1)*.5 |
|
|
ii = ii+1 |
|
|
inx(ii,1) = i |
|
|
inx(ii,2) = j |
|
|
ENDIF |
|
|
ENDDO |
|
|
icnt = ii |
|
|
ENDDO |
|
|
icnt = 0 |
|
|
DO j=1,sNy |
|
|
DO i=1,sNx |
|
|
icnt = icnt+1 |
|
|
inx(icnt,1) = i |
|
|
inx(icnt,2) = j |
|
|
ENDDO |
|
|
ENDDO |
|
|
DO WHILE (icnt .GT. 0) |
|
|
ii = 0 |
|
|
!CDIR NODEP |
|
|
DO ic=1,icnt |
|
|
i = inx(ic,1) |
|
|
j = inx(ic,2) |
|
|
IF (yG(i,j,bi,bj) .GE. y_in(s_ind(i,j)+1)) THEN |
|
|
s_ind(i,j) = s_ind(i,j) + 1 |
|
|
ii = ii+1 |
|
|
inx(ii,1) = i |
|
|
inx(ii,2) = j |
|
|
ENDIF |
|
|
ENDDO |
|
|
icnt = ii |
|
|
ENDDO |
|
|
#endif /* TARGET_NEC_SX defined */ |
|
|
#else /* OLD_EXF_INTERP_LAT_INDEX */ |
|
336 |
C-- latitude index |
C-- latitude index |
337 |
DO j=1,sNy |
DO j=1,sNy |
338 |
DO i=1,sNx |
DO i=1,sNx |
342 |
ENDDO |
ENDDO |
343 |
C # of pts = nyIn+2 ; # of interval = nyIn+1 ; evaluate nLoop as |
C # of pts = nyIn+2 ; # of interval = nyIn+1 ; evaluate nLoop as |
344 |
C 1 + truncated log2(# interval -1); add epsil=1.e-3 for safey |
C 1 + truncated log2(# interval -1); add epsil=1.e-3 for safey |
345 |
nLoop = 1 + INT( LOG(DFLOAT(nyIn)+1. _d -3)/LOG(2. _d 0) ) |
tmpVar = nyIn + 1. _d -3 |
346 |
|
nLoop = 1 + INT( LOG(tmpVar)/LOG(2. _d 0) ) |
347 |
DO l=1,nLoop |
DO l=1,nLoop |
348 |
DO j=1,sNy |
DO j=1,sNy |
349 |
DO i=1,sNx |
DO i=1,sNx |
359 |
ENDDO |
ENDDO |
360 |
ENDDO |
ENDDO |
361 |
#ifdef ALLOW_DEBUG |
#ifdef ALLOW_DEBUG |
362 |
IF ( debugLevel.GE.debLevC ) THEN |
IF ( debugFlag ) THEN |
363 |
C- Check that we found the right lat. index |
C- Check that we found the right lat. index |
364 |
DO j=1,sNy |
DO j=1,sNy |
365 |
DO i=1,sNx |
DO i=1,sNx |
370 |
& ', nLoop=', nLoop |
& ', nLoop=', nLoop |
371 |
CALL PRINT_ERROR( msgBuf, myThid ) |
CALL PRINT_ERROR( msgBuf, myThid ) |
372 |
WRITE(msgBuf,'(A)') |
WRITE(msgBuf,'(A)') |
373 |
& 'EXF_INTERP: did not found Latitude index for grid-pt:' |
& 'EXF_INTERP: did not find Latitude index for grid-pt:' |
374 |
CALL PRINT_ERROR( msgBuf, myThid ) |
CALL PRINT_ERROR( msgBuf, myThid ) |
375 |
WRITE(msgBuf,'(A,2I8,2I6,A,1PE16.8)') |
WRITE(msgBuf,'(A,2I8,2I6,A,1PE16.8)') |
376 |
& 'EXF_INTERP: i,j,bi,bj=',i,j,bi,bj,' , yG=',yG(i,j,bi,bj) |
& 'EXF_INTERP: i,j,bi,bj=',i,j,bi,bj,' , yG=',yG(i,j,bi,bj) |
393 |
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(-1))/lon_inc) - 1 |
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(-1))/lon_inc) - 1 |
394 |
ENDDO |
ENDDO |
395 |
ENDDO |
ENDDO |
|
#endif /* ndef OLD_EXF_INTERP_LAT_INDEX */ |
|
|
|
|
|
IF (method.EQ.1 .OR. method.EQ.11 .OR. method.EQ.21) THEN |
|
396 |
|
|
397 |
C-- Bilinear interpolation |
C-- Do interpolation using lon & lat index mapping |
398 |
sp = 2 |
CALL EXF_INTERPOLATE( |
399 |
DO j=1,sNy |
I inFile, irecord, method, |
400 |
DO i=1,sNx |
I nxIn, nyIn, x_in, y_in, |
401 |
arrayout(i,j,bi,bj) = 0. |
O arrayin, |
402 |
DO l=0,1 |
O arrayout, |
403 |
px_ind(l+1) = x_in(w_ind(i,j)+l) |
I xG, yG, |
404 |
py_ind(l+1) = y_in(s_ind(i,j)+l) |
I w_ind, s_ind, |
405 |
ENDDO |
I bi, bj, myThid ) |
|
#ifndef TARGET_NEC_SX |
|
|
DO k=1,2 |
|
|
ew_val(k) = arrayin(w_ind(i,j) ,s_ind(i,j)+k-1) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+k-1) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
arrayout(i,j,bi,bj) = arrayout(i,j,bi,bj) |
|
|
& + ew_val(k)*LAGRAN(k,yG(i,j,bi,bj),py_ind,sp) |
|
|
ENDDO |
|
|
#else |
|
|
ew_val1 = arrayin(w_ind(i,j) ,s_ind(i,j) ) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j) ) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
ew_val2 = arrayin(w_ind(i,j) ,s_ind(i,j)+1) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+1) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
arrayout(i,j,bi,bj)= |
|
|
& +ew_val1*LAGRAN(1,yG(i,j,bi,bj),py_ind,sp) |
|
|
& +ew_val2*LAGRAN(2,yG(i,j,bi,bj),py_ind,sp) |
|
|
#endif /* TARGET_NEC_SX defined */ |
|
|
ENDDO |
|
|
ENDDO |
|
|
ELSEIF (method .EQ. 2 .OR. method.EQ.12 .OR. method.EQ.22) THEN |
|
406 |
|
|
|
C-- Bicubic interpolation |
|
|
sp = 4 |
|
|
DO j=1,sNy |
|
|
DO i=1,sNx |
|
|
arrayout(i,j,bi,bj) = 0. |
|
|
DO l=-1,2 |
|
|
px_ind(l+2) = x_in(w_ind(i,j)+l) |
|
|
py_ind(l+2) = y_in(s_ind(i,j)+l) |
|
|
ENDDO |
|
|
#ifndef TARGET_NEC_SX |
|
|
DO k=1,4 |
|
|
ew_val(k) = arrayin(w_ind(i,j)-1,s_ind(i,j)+k-2) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)+k-2) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+k-2) |
|
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+k-2) |
|
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
|
|
arrayout(i,j,bi,bj) = arrayout(i,j,bi,bj) |
|
|
& + ew_val(k)*LAGRAN(k,yG(i,j,bi,bj),py_ind,sp) |
|
|
ENDDO |
|
|
#else |
|
|
ew_val1 = arrayin(w_ind(i,j)-1,s_ind(i,j)-1) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)-1) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)-1) |
|
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)-1) |
|
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
|
|
ew_val2 = arrayin(w_ind(i,j)-1,s_ind(i,j) ) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j) ,s_ind(i,j) ) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j) ) |
|
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j) ) |
|
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
|
|
ew_val3 = arrayin(w_ind(i,j)-1,s_ind(i,j)+1) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)+1) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+1) |
|
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+1) |
|
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
|
|
ew_val4 = arrayin(w_ind(i,j)-1,s_ind(i,j)+2) |
|
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)+2) |
|
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+2) |
|
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
|
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+2) |
|
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
|
|
arrayout(i,j,bi,bj) = |
|
|
& ew_val1*LAGRAN(1,yG(i,j,bi,bj),py_ind,sp) |
|
|
& +ew_val2*LAGRAN(2,yG(i,j,bi,bj),py_ind,sp) |
|
|
& +ew_val3*LAGRAN(3,yG(i,j,bi,bj),py_ind,sp) |
|
|
& +ew_val4*LAGRAN(4,yG(i,j,bi,bj),py_ind,sp) |
|
|
#endif /* TARGET_NEC_SX defined */ |
|
|
ENDDO |
|
|
ENDDO |
|
|
ELSE |
|
|
l = ILNBLNK(inFile) |
|
|
WRITE(msgBuf,'(3A,I6)') |
|
|
& 'EXF_INTERP: file="', inFile(1:l), '", rec=', irecord |
|
|
CALL PRINT_ERROR( msgBuf, myThid ) |
|
|
WRITE(msgBuf,'(A,I8,A)') |
|
|
& 'EXF_INTERP: method=', method,' not supported' |
|
|
CALL PRINT_ERROR( msgBuf, myThid ) |
|
|
STOP 'ABNORMAL END: S/R EXF_INTERP: invalid method' |
|
|
ENDIF |
|
407 |
ENDDO |
ENDDO |
408 |
ENDDO |
ENDDO |
409 |
|
|