| 1 |
|
C $Header$ |
| 2 |
|
C $Name$ |
| 3 |
|
|
| 4 |
#include "EXF_OPTIONS.h" |
#include "EXF_OPTIONS.h" |
| 5 |
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
#undef OLD_EXF_INTERP_LAT_INDEX |
|
C Flux Coupler using C |
|
|
C Bilinear interpolation of forcing fields C |
|
|
C C |
|
|
C B. Cheng (12/2002) C |
|
|
C C |
|
|
C added Bicubic (bnc 1/2003) C |
|
|
C C |
|
|
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
|
| 6 |
|
|
| 7 |
real*8 function lagran(i,x,a,sp) |
C==========================================* |
| 8 |
|
C Flux Coupler using | |
| 9 |
|
C Bilinear interpolation of forcing fields | |
| 10 |
|
C | |
| 11 |
|
C B. Cheng (12/2002) | |
| 12 |
|
C | |
| 13 |
|
C added Bicubic (bnc 1/2003) | |
| 14 |
|
C | |
| 15 |
|
C==========================================* |
| 16 |
|
|
| 17 |
INTEGER i,k,sp |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
|
_RS x |
|
|
real*8 a(4) |
|
|
real*8 numer,denom |
|
| 18 |
|
|
| 19 |
numer = 1.D0 |
_RL FUNCTION LAGRAN(i,x,a,sp) |
|
denom = 1.D0 |
|
| 20 |
|
|
| 21 |
do k=1,sp |
IMPLICIT NONE |
|
if ( k .ne. i) then |
|
|
denom = denom*(a(i) - a(k)) |
|
|
numer = numer*(x - a(k)) |
|
|
endif |
|
|
enddo |
|
| 22 |
|
|
| 23 |
lagran = numer/denom |
INTEGER i |
| 24 |
|
_RS x |
| 25 |
|
_RL a(4) |
| 26 |
|
INTEGER sp |
| 27 |
|
|
| 28 |
return |
C- local variables: |
| 29 |
end |
INTEGER k |
| 30 |
|
_RL numer,denom |
| 31 |
|
|
| 32 |
|
numer = 1. _d 0 |
| 33 |
|
denom = 1. _d 0 |
| 34 |
|
|
| 35 |
|
#ifdef TARGET_NEC_SX |
| 36 |
|
!CDIR UNROLL=8 |
| 37 |
|
#endif /* TARGET_NEC_SX */ |
| 38 |
|
DO k=1,sp |
| 39 |
|
IF ( k .NE. i) THEN |
| 40 |
|
denom = denom*(a(i) - a(k)) |
| 41 |
|
numer = numer*(x - a(k)) |
| 42 |
|
ENDIF |
| 43 |
|
ENDDO |
| 44 |
|
|
| 45 |
|
LAGRAN = numer/denom |
| 46 |
|
|
| 47 |
SUBROUTINE exf_interp( |
RETURN |
| 48 |
I infile, |
END |
|
I filePrec, |
|
|
O arrayout, |
|
|
I irecord, xG, yG, |
|
|
I lon_0, lon_inc, |
|
|
I lat_0, lat_inc, |
|
|
I nx_in, ny_in, method, mythid) |
|
|
|
|
|
C |
|
|
C infile = name of the input file (direct access binary) |
|
|
C filePrec = file precicision (currently not used, assumes real*4) |
|
|
C arrout = output arrays (different for each processor) |
|
|
C irecord = record number in global file |
|
|
C xG,yG = coordinates for output grid |
|
|
C lon_0, lat_0 = lon and lat of sw corner of global input grid |
|
|
C lon_inc = scalar x-grid increment |
|
|
C lat_inc = vector y-grid increments |
|
|
C nx_in, ny_in = input x-grid and y-grid size |
|
|
C method = 1 for bilinear 2 for bicubic |
|
|
C mythid = thread id |
|
|
C |
|
| 49 |
|
|
| 50 |
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 51 |
|
|
| 52 |
|
CBOP |
| 53 |
|
C !ROUTINE: EXF_INTERP |
| 54 |
|
C !INTERFACE: |
| 55 |
|
SUBROUTINE EXF_INTERP( |
| 56 |
|
I inFile, |
| 57 |
|
I filePrec, |
| 58 |
|
O arrayout, |
| 59 |
|
I irecord, xG_in, yG, |
| 60 |
|
I lon_0, lon_inc, |
| 61 |
|
I lat_0, lat_inc, |
| 62 |
|
I nxIn, nyIn, method, myThid ) |
| 63 |
|
|
| 64 |
|
C !DESCRIPTION: \bv |
| 65 |
|
C *==========================================================* |
| 66 |
|
C | SUBROUTINE EXF_INTERP |
| 67 |
|
C | o Load from file a regular lat-lon input field |
| 68 |
|
C | and interpolate on to the model grid location |
| 69 |
|
C *==========================================================* |
| 70 |
|
C \ev |
| 71 |
|
|
| 72 |
|
C !USES: |
| 73 |
|
IMPLICIT NONE |
| 74 |
|
C === Global variables === |
| 75 |
#include "SIZE.h" |
#include "SIZE.h" |
| 76 |
#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
| 77 |
|
#include "PARAMS.h" |
| 78 |
|
|
| 79 |
|
|
| 80 |
|
C !INPUT/OUTPUT PARAMETERS: |
| 81 |
|
C inFile (string) :: name of the binary input file (direct access) |
| 82 |
|
C filePrec (integer) :: number of bits per word in file (32 or 64) |
| 83 |
|
C arrayout ( _RL ) :: output array |
| 84 |
|
C irecord (integer) :: record number to read |
| 85 |
|
C xG_in,yG :: coordinates for output grid to interpolate to |
| 86 |
|
C lon_0, lat_0 :: lon and lat of sw corner of global input grid |
| 87 |
|
C lon_inc :: scalar x-grid increment |
| 88 |
|
C lat_inc :: vector y-grid increments |
| 89 |
|
C nxIn,nyIn (integer) :: size in x & y direction of input file to read |
| 90 |
|
C method :: 1,11,21 for bilinear; 2,12,22 for bicubic |
| 91 |
|
C :: 1,2 for tracer; 11,12 for U; 21,22 for V |
| 92 |
|
C myThid (integer) :: My Thread Id number |
| 93 |
|
|
| 94 |
C subroutine variables |
CHARACTER*(*) infile |
| 95 |
character*(*) infile |
INTEGER filePrec, irecord, nxIn, nyIn |
|
integer filePrec, irecord, nx_in, ny_in |
|
| 96 |
_RL arrayout(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RL arrayout(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 97 |
_RS xG (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RS xG_in (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 98 |
_RS yG (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RS yG (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 99 |
_RL lon_0, lon_inc |
_RL lon_0, lon_inc |
| 100 |
_RL lat_0, lat_inc(ny_in-1) |
c _RL lat_0, lat_inc(nyIn-1) |
| 101 |
integer method, mythid |
_RL lat_0, lat_inc(*) |
| 102 |
|
INTEGER method, myThid |
| 103 |
C local variables |
|
| 104 |
integer ierr |
C !FUNCTIONS: |
| 105 |
real*8 ne_fac,nw_fac,se_fac,sw_fac |
EXTERNAL LAGRAN |
| 106 |
integer e_ind(snx),w_ind(snx) |
_RL LAGRAN |
| 107 |
integer n_ind(sny),s_ind(sny) |
INTEGER ILNBLNK |
| 108 |
real*8 px_ind(4), py_ind(4), ew_val(4) |
EXTERNAL ILNBLNK |
| 109 |
external lagran |
|
| 110 |
real*8 lagran |
C !LOCAL VARIABLES: |
| 111 |
real*4 arrayin(-1:nx_in+2 , -1:ny_in+2) |
C msgBuf :: Informational/error message buffer |
| 112 |
real*8 x_in (-1:nx_in+2), y_in(-1:ny_in+2) |
C bi, bj :: tile indices |
| 113 |
integer i, j, k, l, js, bi, bj, sp, interp_unit |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 114 |
|
INTEGER bi, bj |
| 115 |
C check input arguments |
INTEGER w_ind(sNx,sNy), s_ind(sNx,sNy) |
| 116 |
if ( .NOT. (filePrec .EQ. 32) ) |
_RL px_ind(4), py_ind(4), ew_val(4) |
| 117 |
& stop 'stop in exf_interp.F: value of filePrec not allowed' |
_RL arrayin( -1:nxIn+2, -1:nyIn+2 ) |
| 118 |
|
_RL x_in(-1:nxIn+2), y_in(-1:nyIn+2) |
| 119 |
C read in input data |
_RL NorthValue |
| 120 |
call mdsfindunit( interp_unit, mythid) |
INTEGER i, j, k, l, sp |
| 121 |
open(interp_unit,file=infile,status='old',access='direct', |
#ifdef OLD_EXF_INTERP_LAT_INDEX |
| 122 |
& recl=nx_in*ny_in*4) |
INTEGER js |
| 123 |
read(interp_unit,rec=irecord) ((arrayin(i,j),i=1,nx_in),j=1,ny_in) |
#else |
| 124 |
#ifdef _BYTESWAPIO |
INTEGER nLoop |
| 125 |
call MDS_BYTESWAPR4((nx_in+4)*(ny_in+4), arrayin ) |
#endif |
| 126 |
|
#ifdef TARGET_NEC_SX |
| 127 |
|
INTEGER ic, ii, icnt |
| 128 |
|
INTEGER inx(sNx*sNy,2) |
| 129 |
|
_RL ew_val1, ew_val2, ew_val3, ew_val4 |
| 130 |
#endif |
#endif |
| 131 |
close(interp_unit) |
_RS xG(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 132 |
|
_RL ninety |
| 133 |
|
PARAMETER ( ninety = 90. ) |
| 134 |
|
_RS threeSixtyRS |
| 135 |
|
PARAMETER ( threeSixtyRS = 360. ) |
| 136 |
|
LOGICAL xIsPeriodic |
| 137 |
|
CEOP |
| 138 |
|
|
| 139 |
|
C-- put xG in interval [ lon_0 , lon_0+360 [ |
| 140 |
|
DO bj=myByLo(myThid),myByHi(myThid) |
| 141 |
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 142 |
|
DO j=1-OLy,sNy+OLy |
| 143 |
|
DO i=1-OLx,sNx+OLx |
| 144 |
|
xG(i,j,bi,bj) = xG_in(i,j,bi,bj)-lon_0 |
| 145 |
|
& + threeSixtyRS*2. |
| 146 |
|
xG(i,j,bi,bj) = lon_0+MOD(xG(i,j,bi,bj),threeSixtyRS) |
| 147 |
|
ENDDO |
| 148 |
|
ENDDO |
| 149 |
|
ENDDO |
| 150 |
|
ENDDO |
| 151 |
|
|
| 152 |
|
C-- Load inut field |
| 153 |
|
CALL EXF_INTERP_READ( |
| 154 |
|
I inFile, filePrec, |
| 155 |
|
O arrayin, |
| 156 |
|
I irecord, nxIn, nyIn, myThid ) |
| 157 |
|
|
| 158 |
|
C-- setup input longitude grid |
| 159 |
|
DO i=-1,nxIn+2 |
| 160 |
|
x_in(i) = lon_0 + (i-1)*lon_inc |
| 161 |
|
ENDDO |
| 162 |
|
xIsPeriodic = nxIn.EQ.NINT( threeSixtyRS / lon_inc ) |
| 163 |
|
|
| 164 |
C setup input grid |
C-- setup input latitude grid |
|
do i=-1,nx_in+2 |
|
|
x_in(i) = lon_0 + (i-1.)*lon_inc |
|
|
enddo |
|
|
y_in(0) = lat_0 - lat_inc(1) |
|
|
y_in(-1)= lat_0 - 2.*lat_inc(1) |
|
| 165 |
y_in(1) = lat_0 |
y_in(1) = lat_0 |
| 166 |
do j=2,ny_in |
DO j=1,nyIn+1 |
| 167 |
y_in(j) = y_in(j-1) + lat_inc(j-1) |
i = MIN(j,nyIn-1) |
| 168 |
enddo |
y_in(j+1) = y_in(j) + lat_inc(i) |
| 169 |
y_in(ny_in+1) = y_in(ny_in) + lat_inc(ny_in-1) |
ENDDO |
| 170 |
y_in(ny_in+2) = y_in(ny_in) + 2.*lat_inc(ny_in-1) |
C- Add 2 row @ southern end; if one is beyond S.pole, put one @ S.pole |
| 171 |
|
y_in(0) = y_in(1) - lat_inc(1) |
| 172 |
C enlarge boundary |
y_in(-1)= y_in(0) - lat_inc(1) |
| 173 |
do j=1,ny_in |
c IF ( y_in(1).GT.-ninety .AND. y_in(0).LT.-ninety ) THEN |
| 174 |
arrayin(0,j) = arrayin(nx_in,j) |
c y_in(0) = -ninety |
| 175 |
arrayin(-1,j) = arrayin(nx_in-1,j) |
c y_in(-1) = -2.*ninety - y_in(1) |
| 176 |
arrayin(nx_in+1,j) = arrayin(1,j) |
c ENDIF |
| 177 |
arrayin(nx_in+2,j) = arrayin(2,j) |
c IF ( y_in(0).GT.-ninety .AND. y_in(-1).LT.-ninety ) THEN |
| 178 |
enddo |
c y_in(-1) = -ninety |
| 179 |
do i=-1,nx_in+2 |
c ENDIF |
| 180 |
arrayin(i,0) = arrayin(i,1) |
C- Add 2 row @ northern end; if one is beyond N.pole, put one @ N.pole |
| 181 |
arrayin(i,-1) = arrayin(i,1) |
j = nyIn+1 |
| 182 |
arrayin(i,ny_in+1) = arrayin(i,ny_in) |
IF ( y_in(j-1).LT.ninety .AND. y_in(j).GT.ninety ) THEN |
| 183 |
arrayin(i,ny_in+2) = arrayin(i,ny_in) |
y_in(j) = ninety |
| 184 |
enddo |
y_in(j+1) = 2.*ninety - y_in(j-1) |
| 185 |
|
ENDIF |
| 186 |
do bj = mybylo(mythid), mybyhi(mythid) |
j = nyIn+2 |
| 187 |
do bi = mybxlo(mythid), mybxhi(mythid) |
IF ( y_in(j-1).LT.ninety .AND. y_in(j).GT.ninety ) THEN |
| 188 |
|
y_in(j) = ninety |
| 189 |
C check validity of input/output coordinates |
ENDIF |
| 190 |
if ( xG(1,1 ,bi,bj) .le. x_in(0) .or. |
|
| 191 |
& xG(snx,1,bi,bj) .ge. x_in(nx_in+1) .or. |
C-- enlarge boundary |
| 192 |
& yG(1,1 ,bi,bj) .lt. y_in(1) .or. |
IF ( xIsPeriodic ) THEN |
| 193 |
& yG(1,sny,bi,bj) .gt. y_in(ny_in) ) then |
DO j=1,nyIn |
| 194 |
print*,'ERROR in S/R EXF_INTERP:' |
arrayin( 0,j) = arrayin(nxIn ,j) |
| 195 |
print*,' input grid must encompass output grid.' |
arrayin(-1,j) = arrayin(nxIn-1,j) |
| 196 |
STOP ' ABNORMAL END: S/R EXF_INTERP' |
arrayin(nxIn+1,j) = arrayin(1,j) |
| 197 |
endif |
arrayin(nxIn+2,j) = arrayin(2,j) |
| 198 |
|
ENDDO |
| 199 |
C compute interpolation indices |
ELSE |
| 200 |
do i=1,snx |
DO j=1,nyIn |
| 201 |
if (xG(i,1,bi,bj)-x_in(1) .ge. 0.) then |
arrayin( 0,j) = arrayin(1,j) |
| 202 |
w_ind(i) = int((xG(i,1,bi,bj)-x_in(1))/lon_inc) + 1 |
arrayin(-1,j) = arrayin(1,j) |
| 203 |
else |
arrayin(nxIn+1,j) = arrayin(nxIn,j) |
| 204 |
w_ind(i) = int((xG(i,1,bi,bj)-x_in(1))/lon_inc) |
arrayin(nxIn+2,j) = arrayin(nxIn,j) |
| 205 |
endif |
ENDDO |
| 206 |
e_ind(i) = w_ind(i) + 1 |
ENDIF |
| 207 |
enddo |
DO i=-1,nxIn+2 |
| 208 |
js = ny_in/2 |
arrayin(i, 0) = arrayin(i,1) |
| 209 |
do j=1,sny |
arrayin(i,-1) = arrayin(i,1) |
| 210 |
do while (yG(1,j,bi,bj) .lt. y_in(js)) |
arrayin(i,nyIn+1) = arrayin(i,nyIn) |
| 211 |
js = (js + 1)/2 |
arrayin(i,nyIn+2) = arrayin(i,nyIn) |
| 212 |
enddo |
ENDDO |
| 213 |
do while (yG(1,j,bi,bj) .ge. y_in(js+1)) |
|
| 214 |
js = js + 1 |
C- For tracer (method=1,2) set to northernmost zonal-mean value |
| 215 |
enddo |
C at 90N to avoid sharp zonal gradients near the Pole. |
| 216 |
s_ind(j) = js |
C For U (method=11,12) set to zero at 90N to minimize velocity |
| 217 |
n_ind(j) = js + 1 |
C gradient at North Pole |
| 218 |
enddo |
C For V (method=11,12) set to northernmost zonal value at 90N, |
| 219 |
|
C as is already done above in order to allow cross-PoleArctic flow |
| 220 |
|
DO j=nyIn,nyIn+2 |
| 221 |
|
IF (y_in(j).EQ.ninety) THEN |
| 222 |
|
IF (method.EQ.1 .OR. method.EQ.2) THEN |
| 223 |
|
NorthValue = 0. |
| 224 |
|
DO i=1,nxIn |
| 225 |
|
NorthValue = NorthValue + arrayin(i,j) |
| 226 |
|
ENDDO |
| 227 |
|
NorthValue = NorthValue / nxIn |
| 228 |
|
DO i=-1,nxIn+2 |
| 229 |
|
arrayin(i,j) = NorthValue |
| 230 |
|
ENDDO |
| 231 |
|
ELSEIF (method.EQ.11 .OR. method.EQ.12) THEN |
| 232 |
|
DO i=-1,nxIn+2 |
| 233 |
|
arrayin(i,j) = 0. |
| 234 |
|
ENDDO |
| 235 |
|
ENDIF |
| 236 |
|
ENDIF |
| 237 |
|
ENDDO |
| 238 |
|
|
| 239 |
|
DO bj = myByLo(myThid), myByHi(myThid) |
| 240 |
|
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 241 |
|
|
| 242 |
|
C-- Check validity of input/output coordinates |
| 243 |
|
#ifdef ALLOW_DEBUG |
| 244 |
|
IF ( debugLevel.GE.debLevC ) THEN |
| 245 |
|
DO j=1,sNy |
| 246 |
|
DO i=1,sNx |
| 247 |
|
IF ( xG(i,j,bi,bj) .LT. x_in(0) .OR. |
| 248 |
|
& xG(i,j,bi,bj) .GE. x_in(nxIn+1) .OR. |
| 249 |
|
& yG(i,j,bi,bj) .LT. y_in(0) .OR. |
| 250 |
|
& yG(i,j,bi,bj) .GE. y_in(nyIn+1) ) THEN |
| 251 |
|
l = ILNBLNK(inFile) |
| 252 |
|
WRITE(msgBuf,'(3A,I6)') |
| 253 |
|
& 'EXF_INTERP: file="', inFile(1:l), '", rec=', irecord |
| 254 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 255 |
|
WRITE(msgBuf,'(A)') |
| 256 |
|
& 'EXF_INTERP: input grid must encompass output grid.' |
| 257 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 258 |
|
WRITE(msgBuf,'(A,2I8,2I6,A,1P2E14.6)') 'i,j,bi,bj=', |
| 259 |
|
& i,j,bi,bj, ' , xG,yG=', xG(i,j,bi,bj), yG(i,j,bi,bj) |
| 260 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 261 |
|
WRITE(msgBuf,'(A,I9,A,1P2E14.6)') 'nxIn=', nxIn, |
| 262 |
|
& ' , x_in(0,nxIn+1)=', x_in(0) ,x_in(nxIn+1) |
| 263 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 264 |
|
WRITE(msgBuf,'(A,I9,A,1P2E14.6)') 'nyIn=', nyIn, |
| 265 |
|
& ' , y_in(0,nyIn+1)=', y_in(0) ,y_in(nyIn+1) |
| 266 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 267 |
|
STOP 'ABNORMAL END: S/R EXF_INTERP' |
| 268 |
|
ENDIF |
| 269 |
|
ENDDO |
| 270 |
|
ENDDO |
| 271 |
|
ENDIF |
| 272 |
|
#endif /* ALLOW_DEBUG */ |
| 273 |
|
|
| 274 |
|
C-- Compute interpolation indices |
| 275 |
|
#ifdef OLD_EXF_INTERP_LAT_INDEX |
| 276 |
|
DO j=1,sNy |
| 277 |
|
DO i=1,sNx |
| 278 |
|
IF (xG(i,j,bi,bj)-x_in(1) .GE. 0.) THEN |
| 279 |
|
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(1))/lon_inc) + 1 |
| 280 |
|
ELSE |
| 281 |
|
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(1))/lon_inc) |
| 282 |
|
ENDIF |
| 283 |
|
ENDDO |
| 284 |
|
ENDDO |
| 285 |
|
#ifndef TARGET_NEC_SX |
| 286 |
|
C- use the original and more readable variant of the algorithm that |
| 287 |
|
C has unvectorizable while-loops for each (i,j) |
| 288 |
|
DO j=1,sNy |
| 289 |
|
DO i=1,sNx |
| 290 |
|
js = nyIn*.5 |
| 291 |
|
DO WHILE (yG(i,j,bi,bj) .LT. y_in(js)) |
| 292 |
|
js = (js - 1)*.5 |
| 293 |
|
ENDDO |
| 294 |
|
DO WHILE (yG(i,j,bi,bj) .GE. y_in(js+1)) |
| 295 |
|
js = js + 1 |
| 296 |
|
ENDDO |
| 297 |
|
s_ind(i,j) = js |
| 298 |
|
ENDDO |
| 299 |
|
ENDDO |
| 300 |
|
#else /* TARGET_NEC_SX defined */ |
| 301 |
|
C- this variant vectorizes more efficiently than the original one because |
| 302 |
|
C it moves the while loops out of the i,j loops (loop pushing) but |
| 303 |
|
C it is ugly and incomprehensible |
| 304 |
|
icnt = 0 |
| 305 |
|
DO j=1,sNy |
| 306 |
|
DO i=1,sNx |
| 307 |
|
s_ind(i,j) = nyIn*.5 |
| 308 |
|
icnt = icnt+1 |
| 309 |
|
inx(icnt,1) = i |
| 310 |
|
inx(icnt,2) = j |
| 311 |
|
ENDDO |
| 312 |
|
ENDDO |
| 313 |
|
DO WHILE (icnt .GT. 0) |
| 314 |
|
ii = 0 |
| 315 |
|
!CDIR NODEP |
| 316 |
|
DO ic=1,icnt |
| 317 |
|
i = inx(ic,1) |
| 318 |
|
j = inx(ic,2) |
| 319 |
|
IF (yG(i,j,bi,bj) .LT. y_in(s_ind(i,j))) THEN |
| 320 |
|
s_ind(i,j) = (s_ind(i,j) - 1)*.5 |
| 321 |
|
ii = ii+1 |
| 322 |
|
inx(ii,1) = i |
| 323 |
|
inx(ii,2) = j |
| 324 |
|
ENDIF |
| 325 |
|
ENDDO |
| 326 |
|
icnt = ii |
| 327 |
|
ENDDO |
| 328 |
|
icnt = 0 |
| 329 |
|
DO j=1,sNy |
| 330 |
|
DO i=1,sNx |
| 331 |
|
icnt = icnt+1 |
| 332 |
|
inx(icnt,1) = i |
| 333 |
|
inx(icnt,2) = j |
| 334 |
|
ENDDO |
| 335 |
|
ENDDO |
| 336 |
|
DO WHILE (icnt .GT. 0) |
| 337 |
|
ii = 0 |
| 338 |
|
!CDIR NODEP |
| 339 |
|
DO ic=1,icnt |
| 340 |
|
i = inx(ic,1) |
| 341 |
|
j = inx(ic,2) |
| 342 |
|
IF (yG(i,j,bi,bj) .GE. y_in(s_ind(i,j)+1)) THEN |
| 343 |
|
s_ind(i,j) = s_ind(i,j) + 1 |
| 344 |
|
ii = ii+1 |
| 345 |
|
inx(ii,1) = i |
| 346 |
|
inx(ii,2) = j |
| 347 |
|
ENDIF |
| 348 |
|
ENDDO |
| 349 |
|
icnt = ii |
| 350 |
|
ENDDO |
| 351 |
|
#endif /* TARGET_NEC_SX defined */ |
| 352 |
|
#else /* OLD_EXF_INTERP_LAT_INDEX */ |
| 353 |
|
C-- latitude index |
| 354 |
|
DO j=1,sNy |
| 355 |
|
DO i=1,sNx |
| 356 |
|
s_ind(i,j) = 0 |
| 357 |
|
w_ind(i,j) = nyIn+1 |
| 358 |
|
ENDDO |
| 359 |
|
ENDDO |
| 360 |
|
C # of pts = nyIn+2 ; # of interval = nyIn+1 ; evaluate nLoop as |
| 361 |
|
C 1 + truncated log2(# interval -1); add epsil=1.e-3 for safey |
| 362 |
|
nLoop = 1 + INT( LOG(DFLOAT(nyIn)+1. _d -3)/LOG(2. _d 0) ) |
| 363 |
|
DO l=1,nLoop |
| 364 |
|
DO j=1,sNy |
| 365 |
|
DO i=1,sNx |
| 366 |
|
IF ( w_ind(i,j).GT.s_ind(i,j)+1 ) THEN |
| 367 |
|
k = NINT( (s_ind(i,j)+w_ind(i,j))*0.5 ) |
| 368 |
|
IF ( yG(i,j,bi,bj) .LT. y_in(k) ) THEN |
| 369 |
|
w_ind(i,j) = k |
| 370 |
|
ELSE |
| 371 |
|
s_ind(i,j) = k |
| 372 |
|
ENDIF |
| 373 |
|
ENDIF |
| 374 |
|
ENDDO |
| 375 |
|
ENDDO |
| 376 |
|
ENDDO |
| 377 |
|
#ifdef ALLOW_DEBUG |
| 378 |
|
IF ( debugLevel.GE.debLevC ) THEN |
| 379 |
|
C- Check that we found the right lat. index |
| 380 |
|
DO j=1,sNy |
| 381 |
|
DO i=1,sNx |
| 382 |
|
IF ( w_ind(i,j).NE.s_ind(i,j)+1 ) THEN |
| 383 |
|
l = ILNBLNK(inFile) |
| 384 |
|
WRITE(msgBuf,'(3A,I4,A,I4)') |
| 385 |
|
& 'EXF_INTERP: file="', inFile(1:l), '", rec=', irecord, |
| 386 |
|
& ', nLoop=', nLoop |
| 387 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 388 |
|
WRITE(msgBuf,'(A)') |
| 389 |
|
& 'EXF_INTERP: did not found Latitude index for grid-pt:' |
| 390 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 391 |
|
WRITE(msgBuf,'(A,2I8,2I6,A,1PE16.8)') |
| 392 |
|
& 'EXF_INTERP: i,j,bi,bj=',i,j,bi,bj,' , yG=',yG(i,j,bi,bj) |
| 393 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 394 |
|
WRITE(msgBuf,'(A,I8,A,1PE16.8)') |
| 395 |
|
& 'EXF_INTERP: s_ind=',s_ind(i,j),', lat=',y_in(s_ind(i,j)) |
| 396 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 397 |
|
WRITE(msgBuf,'(A,I8,A,1PE16.8)') |
| 398 |
|
& 'EXF_INTERP: n_ind=',w_ind(i,j),', lat=',y_in(w_ind(i,j)) |
| 399 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 400 |
|
STOP 'ABNORMAL END: S/R EXF_INTERP' |
| 401 |
|
ENDIF |
| 402 |
|
ENDDO |
| 403 |
|
ENDDO |
| 404 |
|
ENDIF |
| 405 |
|
#endif /* ALLOW_DEBUG */ |
| 406 |
|
C-- longitude index |
| 407 |
|
DO j=1,sNy |
| 408 |
|
DO i=1,sNx |
| 409 |
|
w_ind(i,j) = INT((xG(i,j,bi,bj)-x_in(-1))/lon_inc) - 1 |
| 410 |
|
ENDDO |
| 411 |
|
ENDDO |
| 412 |
|
#endif /* ndef OLD_EXF_INTERP_LAT_INDEX */ |
| 413 |
|
|
| 414 |
if (method .eq. 1) then |
IF (method.EQ.1 .OR. method.EQ.11 .OR. method.EQ.21) THEN |
| 415 |
|
|
| 416 |
C bilinear interpolation |
C-- Bilinear interpolation |
| 417 |
sp = 2 |
sp = 2 |
| 418 |
do j=1,sny |
DO j=1,sNy |
| 419 |
do i=1,snx |
DO i=1,sNx |
| 420 |
arrayout(i,j,bi,bj) = 0. |
arrayout(i,j,bi,bj) = 0. |
| 421 |
do l=0,1 |
DO l=0,1 |
| 422 |
px_ind(l+1) = x_in(w_ind(i)+l) |
px_ind(l+1) = x_in(w_ind(i,j)+l) |
| 423 |
py_ind(l+1) = y_in(s_ind(j)+l) |
py_ind(l+1) = y_in(s_ind(i,j)+l) |
| 424 |
enddo |
ENDDO |
| 425 |
do k=1,2 |
#ifndef TARGET_NEC_SX |
| 426 |
ew_val(k) = arrayin(w_ind(i),s_ind(j)+k-1) |
DO k=1,2 |
| 427 |
& *lagran(1,xG(i,1,bi,bj),px_ind,sp) |
ew_val(k) = arrayin(w_ind(i,j) ,s_ind(i,j)+k-1) |
| 428 |
& +arrayin(e_ind(i),s_ind(j)+k-1) |
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 429 |
& *lagran(2,xG(i,1,bi,bj),px_ind,sp) |
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+k-1) |
| 430 |
arrayout(i,j,bi,bj)=arrayout(i,j,bi,bj) |
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 431 |
& +ew_val(k)*lagran(k,yG(1,j,bi,bj),py_ind,sp) |
arrayout(i,j,bi,bj) = arrayout(i,j,bi,bj) |
| 432 |
enddo |
& + ew_val(k)*LAGRAN(k,yG(i,j,bi,bj),py_ind,sp) |
| 433 |
enddo |
ENDDO |
| 434 |
enddo |
#else |
| 435 |
elseif (method .eq. 2) then |
ew_val1 = arrayin(w_ind(i,j) ,s_ind(i,j) ) |
| 436 |
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 437 |
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j) ) |
| 438 |
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 439 |
|
ew_val2 = arrayin(w_ind(i,j) ,s_ind(i,j)+1) |
| 440 |
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 441 |
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+1) |
| 442 |
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 443 |
|
arrayout(i,j,bi,bj)= |
| 444 |
|
& +ew_val1*LAGRAN(1,yG(i,j,bi,bj),py_ind,sp) |
| 445 |
|
& +ew_val2*LAGRAN(2,yG(i,j,bi,bj),py_ind,sp) |
| 446 |
|
#endif /* TARGET_NEC_SX defined */ |
| 447 |
|
ENDDO |
| 448 |
|
ENDDO |
| 449 |
|
ELSEIF (method .EQ. 2 .OR. method.EQ.12 .OR. method.EQ.22) THEN |
| 450 |
|
|
| 451 |
C bicubic interpolation |
C-- Bicubic interpolation |
| 452 |
sp = 4 |
sp = 4 |
| 453 |
do j=1,sny |
DO j=1,sNy |
| 454 |
do i=1,snx |
DO i=1,sNx |
| 455 |
arrayout(i,j,bi,bj) = 0. |
arrayout(i,j,bi,bj) = 0. |
| 456 |
do l=-1,2 |
DO l=-1,2 |
| 457 |
px_ind(l+2) = x_in(w_ind(i)+l) |
px_ind(l+2) = x_in(w_ind(i,j)+l) |
| 458 |
py_ind(l+2) = y_in(s_ind(j)+l) |
py_ind(l+2) = y_in(s_ind(i,j)+l) |
| 459 |
enddo |
ENDDO |
| 460 |
do k=1,4 |
#ifndef TARGET_NEC_SX |
| 461 |
ew_val(k) = |
DO k=1,4 |
| 462 |
& arrayin(w_ind(i)-1,s_ind(j)+k-2) |
ew_val(k) = arrayin(w_ind(i,j)-1,s_ind(i,j)+k-2) |
| 463 |
& *lagran(1,xG(i,1,bi,bj),px_ind,sp) |
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 464 |
& +arrayin(w_ind(i) ,s_ind(j)+k-2) |
& + arrayin(w_ind(i,j) ,s_ind(i,j)+k-2) |
| 465 |
& *lagran(2,xG(i,1,bi,bj),px_ind,sp) |
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 466 |
& +arrayin(e_ind(i) ,s_ind(j)+k-2) |
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+k-2) |
| 467 |
& *lagran(3,xG(i,1,bi,bj),px_ind,sp) |
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
| 468 |
& +arrayin(e_ind(i)+1,s_ind(j)+k-2) |
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+k-2) |
| 469 |
& *lagran(4,xG(i,1,bi,bj),px_ind,sp) |
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
| 470 |
arrayout(i,j,bi,bj)=arrayout(i,j,bi,bj) |
arrayout(i,j,bi,bj) = arrayout(i,j,bi,bj) |
| 471 |
& +ew_val(k)*lagran(k,yG(1,j,bi,bj),py_ind,sp) |
& + ew_val(k)*LAGRAN(k,yG(i,j,bi,bj),py_ind,sp) |
| 472 |
enddo |
ENDDO |
| 473 |
enddo |
#else |
| 474 |
enddo |
ew_val1 = arrayin(w_ind(i,j)-1,s_ind(i,j)-1) |
| 475 |
else |
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 476 |
stop 'stop in exf_interp.F: interpolation method not supported' |
& + arrayin(w_ind(i,j) ,s_ind(i,j)-1) |
| 477 |
endif |
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 478 |
enddo |
& + arrayin(w_ind(i,j)+1,s_ind(i,j)-1) |
| 479 |
enddo |
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
| 480 |
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)-1) |
| 481 |
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
| 482 |
|
ew_val2 = arrayin(w_ind(i,j)-1,s_ind(i,j) ) |
| 483 |
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 484 |
|
& + arrayin(w_ind(i,j) ,s_ind(i,j) ) |
| 485 |
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 486 |
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j) ) |
| 487 |
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
| 488 |
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j) ) |
| 489 |
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
| 490 |
|
ew_val3 = arrayin(w_ind(i,j)-1,s_ind(i,j)+1) |
| 491 |
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 492 |
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)+1) |
| 493 |
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 494 |
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+1) |
| 495 |
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
| 496 |
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+1) |
| 497 |
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
| 498 |
|
ew_val4 = arrayin(w_ind(i,j)-1,s_ind(i,j)+2) |
| 499 |
|
& *LAGRAN(1,xG(i,j,bi,bj),px_ind,sp) |
| 500 |
|
& + arrayin(w_ind(i,j) ,s_ind(i,j)+2) |
| 501 |
|
& *LAGRAN(2,xG(i,j,bi,bj),px_ind,sp) |
| 502 |
|
& + arrayin(w_ind(i,j)+1,s_ind(i,j)+2) |
| 503 |
|
& *LAGRAN(3,xG(i,j,bi,bj),px_ind,sp) |
| 504 |
|
& + arrayin(w_ind(i,j)+2,s_ind(i,j)+2) |
| 505 |
|
& *LAGRAN(4,xG(i,j,bi,bj),px_ind,sp) |
| 506 |
|
arrayout(i,j,bi,bj) = |
| 507 |
|
& ew_val1*LAGRAN(1,yG(i,j,bi,bj),py_ind,sp) |
| 508 |
|
& +ew_val2*LAGRAN(2,yG(i,j,bi,bj),py_ind,sp) |
| 509 |
|
& +ew_val3*LAGRAN(3,yG(i,j,bi,bj),py_ind,sp) |
| 510 |
|
& +ew_val4*LAGRAN(4,yG(i,j,bi,bj),py_ind,sp) |
| 511 |
|
#endif /* TARGET_NEC_SX defined */ |
| 512 |
|
ENDDO |
| 513 |
|
ENDDO |
| 514 |
|
ELSE |
| 515 |
|
l = ILNBLNK(inFile) |
| 516 |
|
WRITE(msgBuf,'(3A,I6)') |
| 517 |
|
& 'EXF_INTERP: file="', inFile(1:l), '", rec=', irecord |
| 518 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 519 |
|
WRITE(msgBuf,'(A,I8,A)') |
| 520 |
|
& 'EXF_INTERP: method=', method,' not supported' |
| 521 |
|
CALL PRINT_ERROR( msgBuf, myThid ) |
| 522 |
|
STOP 'ABNORMAL END: S/R EXF_INTERP: invalid method' |
| 523 |
|
ENDIF |
| 524 |
|
ENDDO |
| 525 |
|
ENDDO |
| 526 |
|
|
| 527 |
|
RETURN |
| 528 |
END |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph
| 
Patch