1 |
C $Header: /u/gcmpack/MITgcm/pkg/fizhi/update_ocean_exports.F,v 1.2 2004/06/07 18:11:38 molod Exp $ |
2 |
C $Name: $ |
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|
4 |
subroutine update_ocean_exports (myTime, myIter, myThid) |
5 |
c---------------------------------------------------------------------- |
6 |
c Subroutine update_ocean_exports - 'Wrapper' routine to update |
7 |
c the fields related to the ocean's surface that are needed |
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c by fizhi (sst and sea ice extent). |
9 |
c |
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c Call: getsst (Return the current sst field-read dataset if needed) |
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c getsice (Return the current sea ice field-read data if needed) |
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c----------------------------------------------------------------------- |
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implicit none |
14 |
#include "CPP_OPTIONS.h" |
15 |
#include "SIZE.h" |
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#include "GRID.h" |
17 |
#include "fizhi_ocean_coms.h" |
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#include "EEPARAMS.h" |
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#include "chronos.h" |
20 |
|
21 |
integer myTime, myIter, myThid |
22 |
|
23 |
integer i, j, bi, bj, biglobal, bjglobal |
24 |
integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2 |
25 |
integer nSxglobal, nSyglobal |
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integer ksst,kice |
27 |
real sstmin |
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parameter ( sstmin = 273.16 ) |
29 |
|
30 |
idim1 = 1-OLx |
31 |
idim2 = sNx+OLx |
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jdim1 = 1-OLy |
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jdim2 = sNy+OLy |
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im1 = 1 |
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im2 = sNx |
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jm1 = 1 |
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jm2 = sNy |
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nSxglobal = nSx*nPx |
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nSyglobal = nSy*nPy |
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|
41 |
call mdsfindunit( ksst, myThid ) |
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call mdsfindunit( kice, myThid ) |
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|
44 |
C*********************************************************************** |
45 |
|
46 |
DO BJ = myByLo(myThid),myByHi(myThid) |
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DO BI = myBxLo(myThid),myBxHi(myThid) |
48 |
|
49 |
biglobal=bi+(myXGlobalLo-1)/im2 |
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bjglobal=bj+(myYGlobalLo-1)/jm2 |
51 |
|
52 |
call getsst(ksst,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2,nSx, |
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. nSy,nSxglobal,nSyglobal,bi,bj,biglobal,bjglobal,nymd,nhms,sst) |
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call getsice(kice,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2,nSx, |
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. nSy,nSxglobal,nSyglobal,bi,bj,biglobal,bjglobal,nymd,nhms,sice) |
56 |
|
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c Check for Minimum Open-Water SST |
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c -------------------------------- |
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do j=jm1,jm2 |
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do i=im1,im2 |
61 |
if(sice(i,j,bi,bj).eq.0.0 .and. sst(i,j,bi,bj).lt.sstmin) |
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. sst(i,j,bi,bj) = sstmin |
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enddo |
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enddo |
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|
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ENDDO |
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ENDDO |
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|
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return |
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end |
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|
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subroutine getsice(iunit,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2, |
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. nSx,nSy,nPx,nPy,bi,bj,biglobal,bjglobal,nymd,nhms,sice) |
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C************************************************************************ |
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C |
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C!ROUTINE: GETSICE |
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C!DESCRIPTION: GETSICE returns the sea ice depth. |
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C! This routine is adaptable for any frequency |
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C! data upto a daily frequency. |
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C! note: for diurnal data ndmax should be increased. |
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C |
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C!INPUT PARAMETERS: |
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C! iunit Unit number assigned to the sice data file |
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C! idim1 Start dimension in x-direction |
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C! idim2 End dimension in x-direction |
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C! jdim1 Start dimension in y-direction |
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C! jdim2 End dimension in y-direction |
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C! im1 Begin of x-direction span for filling sice |
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C! im2 End of x-direction span for filling sice |
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C! jm1 Begin of y-direction span for filling sice |
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C! jm2 End of y-direction span for filling sice |
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C! nSx Number of processors in x-direction (local processor) |
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C! nSy Number of processors in y-direction (local processor) |
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C! nPx Number of processors in x-direction (global) |
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C! nPy Number of processors in y-direction (global) |
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C! bi Processor number in x-direction (local to processor) |
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C! bj Processor number in y-direction (local to processor) |
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C! biglobal Processor number in x-direction (global) |
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C! bjglobal Processor number in y-direction (global) |
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C! nymd YYMMDD of the current model timestep |
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C! nhms HHMMSS of the model time |
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C |
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C!OUTPUT PARAMETERS: |
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C! sice(idim1:idim2,jdim1:jdim2,nSx,nSy) Sea ice depth in meters |
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C |
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C!ROUTINES CALLED: |
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C |
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C! bcdata Reads the data for a given unit number |
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C! bcheader Reads the header info for a given unit number |
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C! interp_time Returns weights for linear interpolation |
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C |
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C-------------------------------------------------------------------------- |
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|
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implicit none |
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#include "CPP_OPTIONS.h" |
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|
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integer iunit,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2,nSx,nSy |
118 |
integer bi,bj,biglobal.bjglobal,nymd,nhms |
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|
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_RL sice(idim1:idim2,jdim1:jdim2,nSx,nSy) |
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|
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c MPI Utilities |
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c ------------- |
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include 'mpif.h' |
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integer ierror |
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|
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C Maximum number of dates in one year for the data |
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integer ndmax |
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parameter (ndmax = 370) |
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|
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character*8 cname |
132 |
character*80 cdscrip |
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real fac1, fac2, lat0, lon0, timebc1, timebc2, timemod, undef |
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logical first, found, error |
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integer i,j,n,nn,iyear,iyearbc,nd,ndby3,imbc,jmbc,ndatebc |
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integer nhmsbc(ndmax), nhmsbc1, nhmsbc2,nrec |
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integer nymdbc(ndmax),nymdbc1,nymdbc2,nymdmod |
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|
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C Define Allocatable Arrays |
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real sicebc1(im2,jm2,nPx,nPy),sicebc2(im2,jm2,nPx,nPy) |
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|
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C--------- Variable Initialization --------------------------------- |
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|
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data first /.true./ |
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data error /.false./ |
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|
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c save header info |
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save imbc, jmbc, lat0, lon0, ndatebc, undef, nymdbc, nhmsbc |
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save nymdbc1, nymdbc2, nhmsbc1, nhmsbc2 |
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save first |
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save sicebc1, sicebc2 |
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|
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c this only works for between 1950-2050 |
154 |
if (nymd .lt. 500101) then |
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nymdmod = 20000000 + nymd |
156 |
else if (nymd .le. 991231) then |
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nymdmod = 19000000 + nymd |
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else |
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nymdmod = nymd |
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endif |
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|
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c initialize so that first time through they have values for the check |
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c these vaules make the iyear .ne. iyearbc true anyways for |
164 |
c for the first time so first isnt checked below. |
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|
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if (first) then |
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nymdbc(2) = 0 |
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nymdbc1 = 0 |
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nymdbc2 = 0 |
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nhmsbc1 = 0 |
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nhmsbc2 = 0 |
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first = .false. |
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endif |
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|
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C---------- Read in Header file ---------------------------------- |
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|
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iyear = nymdmod/10000 |
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iyearbc = nymdbc(2)/10000 |
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|
180 |
if( iyear.ne.iyearbc ) then |
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|
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close(iunit) |
183 |
open (iunit, form='unformatted', access='direct',recl=im2*jm2*4) |
184 |
nrec = 1 |
185 |
call bcheader (iunit, ndmax, nrec, |
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. cname, cdscrip, imbc, jmbc, lat0, lon0, |
187 |
. ndatebc, nymdbc, nhmsbc, undef, error) |
188 |
|
189 |
C--------- Check data for Compatibility ------------------------------ |
190 |
|
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C Check for correct data in boundary condition file |
192 |
if (.not.error .and. cname.ne.'SICE') then |
193 |
write(6,*)'Wrong data in SICE boundary condition file => ',cname |
194 |
error = .true. |
195 |
endif |
196 |
|
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C Check Horizontal Resolution |
198 |
if (.not.error .and. imbc*jmbc.ne.im2*jm2) then |
199 |
write(6,*) ' B.C. Resolution DOES NOT match Model Resolution!' |
200 |
write(6,*) ' B.C. Resolution: ',imbc*jmbc |
201 |
write(6,*) 'Model Resolution: ',im2*jm2 |
202 |
error = .true. |
203 |
endif |
204 |
|
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C Check Year |
206 |
iyearbc = nymdbc(2)/10000 |
207 |
if (.not.error .and. iyear.ne.iyearbc .and. iyearbc.ne.0) then |
208 |
write(6,*) ' B.C. Year DOES NOT match REQUESTED Year!' |
209 |
write(6,*) ' B.C. Year: ', iyearbc |
210 |
write(6,*) 'Requested Year: ', iyear |
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error = .true. |
212 |
endif |
213 |
|
214 |
if (.not.error) then |
215 |
C if climatology, fill dates for data with current model year |
216 |
if (iyearbc.eq.0) then |
217 |
write(6,*) |
218 |
write(6,*) 'Climatological Dataset is being used.' |
219 |
write(6,*) 'Current model year to be used to fill Header Dates' |
220 |
do n = 2, ndatebc-1 |
221 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000)*10000 |
222 |
enddo |
223 |
C For the first date subtract 1 year from the current model NYMD |
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n = 1 |
225 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000-1)*10000 |
226 |
C For the last date add 1 year to the current model NYMD |
227 |
n = ndatebc |
228 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000+1)*10000 |
229 |
endif |
230 |
|
231 |
C Write out header info |
232 |
write(6,*) ' Updated boundary condition data' |
233 |
write(6,*) ' ---------------------------------' |
234 |
write(6,*) ' Variable: ',cname |
235 |
write(6,*) ' Description: ',cdscrip |
236 |
write(6,*) ' Resolution: x= ',imbc,' y= ',jmbc, |
237 |
. ' Undefined value = ',undef |
238 |
write(6,*) ' Starting latitude = ',lat0,' longitude =',lon0 |
239 |
write(6,*) ' Data valid at these times: ' |
240 |
ndby3 = ndatebc/3 |
241 |
do n = 1, ndby3*3,3 |
242 |
write(6,1000) (nn,nymdbc(nn),nhmsbc(nn),nn=n,n+2) |
243 |
1000 format(3(2x,i3,':',i8,2x,i8)) |
244 |
enddo |
245 |
write(6,1000) (nn,nymdbc(nn),nhmsbc(nn),nn=ndby3*3+1,ndatebc) |
246 |
endif |
247 |
|
248 |
endif |
249 |
|
250 |
C---------- Read sice data if necessary ------------------------------- |
251 |
|
252 |
found = .false. |
253 |
nd = 2 |
254 |
|
255 |
c If model time is not within the times of saved sice data |
256 |
c from previous call to getsice then read new data |
257 |
|
258 |
timemod = float(nymdmod) + float(nhms) /1000000 |
259 |
timebc1 = float(nymdbc1) + float(nhmsbc1)/1000000 |
260 |
timebc2 = float(nymdbc2) + float(nhmsbc2)/1000000 |
261 |
|
262 |
if (timemod .lt. timebc1 .or. timemod .ge. timebc2) then |
263 |
|
264 |
do while (.not.found .and. nd .le. ndatebc) |
265 |
timebc2 = float(nymdbc(nd)) + float(nhmsbc(nd))/1000000 |
266 |
if (timebc2 .gt. timemod) then |
267 |
nymdbc1 = nymdbc(nd-1) |
268 |
nymdbc2 = nymdbc(nd) |
269 |
nhmsbc1 = nhmsbc(nd-1) |
270 |
nhmsbc2 = nhmsbc(nd) |
271 |
call bcdata (iunit, imbc, jmbc, nd, nd+1, sicebc1, sicebc2) |
272 |
found = .true. |
273 |
else |
274 |
nd = nd + 1 |
275 |
endif |
276 |
enddo |
277 |
|
278 |
c Otherwise the data from the last time in getsice surrounds the |
279 |
c current model time. |
280 |
|
281 |
else |
282 |
found = .true. |
283 |
endif |
284 |
|
285 |
if (.not.found) then |
286 |
print *, 'STOP: Could not find SICE dates for model time.' |
287 |
call my_finalize |
288 |
call my_exit (101) |
289 |
endif |
290 |
|
291 |
C---------- Interpolate sice data ------------------------------------ |
292 |
|
293 |
call interp_time(nymdmod,nhms,nymdbc1,nhmsbc1,nymdbc2,nhmsbc2, |
294 |
. fac1,fac2) |
295 |
|
296 |
do j = jm1,jm2 |
297 |
do i = im1,im2 |
298 |
sice(i,j,bi,bj) = sicebc1(i,j,biglobal,bjglobal)*fac1 |
299 |
. + sicebc2(i,j,biglobal,bjglobal)*fac2 |
300 |
c average to 0 or 1 |
301 |
c ----------------- |
302 |
if (sice(i,j,bi,bj) .ge. 0.5) then |
303 |
sice(i,j,bi,bj) = 1. |
304 |
else |
305 |
sice(i,j,bi,bj) = 0. |
306 |
endif |
307 |
enddo |
308 |
enddo |
309 |
|
310 |
C---------- Fill sice with depth of ice ------------------------------------ |
311 |
do j = jm1,jm2 |
312 |
do i = im1,im2 |
313 |
if (sice(i,j,bi,bj) .eq. 1.) then |
314 |
sice(i,j,bi,bj) = 3. |
315 |
endif |
316 |
enddo |
317 |
enddo |
318 |
C--------------------------------------------------------------------------- |
319 |
|
320 |
return |
321 |
end |
322 |
subroutine getsst ( iunit,nymd,nhms,sst,im,jm,lattice ) |
323 |
C************************************************************************ |
324 |
C!GETSST |
325 |
C************************************************************************ |
326 |
C |
327 |
C!ROUTINE: GETSST |
328 |
C!PROGRAMMER: Sharon Nebuda |
329 |
C!DATE CODED: May 8, 1996 |
330 |
C!DESCRIPTION: GETSST gets the SST data. |
331 |
C! This routine is adaptable for any frequency |
332 |
C! data upto a daily frequency. |
333 |
C! note: for diurnal data ndmax should be increased. |
334 |
C |
335 |
C!INPUT PARAMETERS: |
336 |
C! iunit Unit number assigned to the sst data file |
337 |
C! nymd YYMMDD of the current model timestep |
338 |
C! nhms HHMMSS of the model time |
339 |
C! im Number of x points |
340 |
C! jm Number of y points |
341 |
C! lattice Grid Decomposition defined by Dynamics |
342 |
C |
343 |
C!OUTPUT PARAMETERS: |
344 |
C! sst(im,jm) Sea surface temperature in Kelvin |
345 |
C |
346 |
C!ROUTINES CALLED: |
347 |
C |
348 |
C! bcdata Reads the data for a given unit number |
349 |
C! bcheader Reads the header info for a given unit number |
350 |
C! interp_time Returns weights for linear interpolation |
351 |
C |
352 |
C-------------------------------------------------------------------------- |
353 |
|
354 |
use dynamics_lattice_module |
355 |
implicit none |
356 |
type ( dynamics_lattice_type ) lattice |
357 |
|
358 |
c MPI Utilities |
359 |
c ------------- |
360 |
include 'mpif.h' |
361 |
integer ierror |
362 |
|
363 |
C Parameter statements |
364 |
integer ndmax ! Maximum number of dates in one year for the data |
365 |
parameter (ndmax = 370) |
366 |
|
367 |
C Variables passed to the routine: |
368 |
integer iunit ! Unit number assigned to the SST data file |
369 |
integer nymd ! YYMMDD of the current model timestep |
370 |
integer nhms ! HHMMSS of the model time |
371 |
integer im ! Number of x points |
372 |
integer jm ! Number of y points |
373 |
|
374 |
C Variables returned by the routine: |
375 |
real sst(im,jm) ! Sea surface temperature in Kelvin |
376 |
|
377 |
C Variables unique to the routine: |
378 |
character*8 cname ! Name of the data in the file header |
379 |
character*80 cdscrip ! Description of the data in the file header |
380 |
real fac1 ! Weighted value (fraction) of the data |
381 |
! before the model time |
382 |
real fac2 ! Weighted value (fraction) of the data |
383 |
! after the model time |
384 |
logical first ! True for first time using the dates for the |
385 |
! BC data file. Then read in the header file. |
386 |
logical found ! If false, then the data surrounding the model |
387 |
! time was not found |
388 |
logical error ! TRUE if problem with data |
389 |
integer i,j,n,nn ! DO loop counters |
390 |
integer iyear ! Year of model |
391 |
integer iyearbc ! Year of boundary condition data |
392 |
real lat0 ! Starting lat of the bc data set (future use) |
393 |
real lon0 ! Starting lon of the bc data set (future use) |
394 |
integer nd ! Counter for record number of data to read |
395 |
integer ndby3 ! int(ndatebc/3) used for write statement |
396 |
integer imbc ! IM read from the BC data |
397 |
integer jmbc ! JM read from the BC data |
398 |
integer ndatebc ! Number of dates in the BC file |
399 |
integer nhmsbc(ndmax) ! HHMMSS of the data time (not needed currently) |
400 |
integer nhmsbc1 ! HHMMSS of the earlier data kept from last timestep |
401 |
integer nhmsbc2 ! HHMMSS of the later data kept from last timestep |
402 |
integer nrec ! Record number of the header (set to 1) |
403 |
integer nymdbc(ndmax) ! YYYYMMDD of each data |
404 |
integer nymdbc1 ! YYYYMMDD of the earlier data kept from last timestep |
405 |
integer nymdbc2 ! YYYYMMDD of the later data kept from last timestep |
406 |
integer nymdmod ! YYYYMMDD of the current model timestep |
407 |
real timebc1 ! YYYYMMDD.HHMMSS of the earlier bc data |
408 |
real timebc2 ! YYYYMMDD.HHMMSS of the later bc data |
409 |
real timemod ! YYYYMMDD.HHMMSS of the current timestep |
410 |
real undef ! Undefined value for missing data |
411 |
|
412 |
C Define Allocatable Arrays |
413 |
real, allocatable, save :: sstbc1(:,:) ! Sea surface temperature (K) from bc data |
414 |
! of the date before the model time |
415 |
real, allocatable, save :: sstbc2(:,:) ! Sea surface temperature (K) from bc data |
416 |
! of the date after the model time |
417 |
|
418 |
C--------- Variable Initialization --------------------------------- |
419 |
|
420 |
data first /.true./ |
421 |
data error /.false./ |
422 |
|
423 |
c save header info |
424 |
save imbc, jmbc, lat0, lon0, ndatebc, undef, nymdbc, nhmsbc |
425 |
save nymdbc1, nymdbc2, nhmsbc1, nhmsbc2, sstbc1 |
426 |
save first |
427 |
|
428 |
c this only works for between 1950-2050 |
429 |
if (nymd .lt. 500101) then |
430 |
nymdmod = 20000000 + nymd |
431 |
else if (nymd .le. 991231) then |
432 |
nymdmod = 19000000 + nymd |
433 |
else |
434 |
nymdmod = nymd |
435 |
endif |
436 |
|
437 |
c initialize so that first time through they have values for the check |
438 |
c these vaules make the iyear .ne. iyearbc true anyways for |
439 |
c for the first time so first isnt checked below. |
440 |
if (first) then |
441 |
allocate ( sstbc1(lattice%imglobal,lattice%jmglobal) ) ! Allocate Memory for sstbc1 |
442 |
allocate ( sstbc2(lattice%imglobal,lattice%jmglobal) ) ! Allocate Memory for sstbc2 |
443 |
nymdbc(2) = 0 |
444 |
nymdbc1 = 0 |
445 |
nymdbc2 = 0 |
446 |
nhmsbc1 = 0 |
447 |
nhmsbc2 = 0 |
448 |
first = .false. |
449 |
endif |
450 |
|
451 |
C---------- Read in Header file ---------------------------------- |
452 |
|
453 |
iyear = nymdmod/10000 |
454 |
iyearbc = nymdbc(2)/10000 |
455 |
|
456 |
if( iyear.ne.iyearbc ) then |
457 |
if( lattice%myid.eq.0 ) then |
458 |
|
459 |
close(iunit) |
460 |
open (iunit, form='unformatted', access='direct',recl=lattice%imglobal*lattice%jmglobal*4) |
461 |
nrec = 1 |
462 |
call bcheader (iunit, ndmax, nrec, |
463 |
. cname, cdscrip, imbc, jmbc, lat0, lon0, |
464 |
. ndatebc, nymdbc, nhmsbc, undef, error) |
465 |
|
466 |
C--------- Check data for Compatibility |
467 |
|
468 |
C Check for correct data in boundary condition file |
469 |
if (.not.error .and. cname.ne.'SST') then |
470 |
write(6,*) 'Wrong data in SST boundary condition file => ',cname |
471 |
error = .true. |
472 |
endif |
473 |
|
474 |
C Check Horizontal Resolution |
475 |
if (.not.error .and. imbc*jmbc.ne.lattice%imglobal*lattice%jmglobal) then |
476 |
write(6,*) 'Boundary Condition Resolution DOES NOT match Model Resolution!' |
477 |
write(6,*) 'Boundary Condition Resolution: ',imbc*jmbc |
478 |
write(6,*) ' Model Resolution: ',lattice%imglobal*lattice%jmglobal |
479 |
error = .true. |
480 |
endif |
481 |
|
482 |
C Check Year |
483 |
iyearbc = nymdbc(2)/10000 |
484 |
if (.not.error .and. iyear.ne.iyearbc .and. iyearbc.ne.0) then |
485 |
write(6,*) 'Boundary Condition Year DOES NOT match REQUESTED Year!' |
486 |
write(6,*) 'Boundary Condition Year: ', iyearbc |
487 |
write(6,*) ' Requested Year: ', iyear |
488 |
error = .true. |
489 |
endif |
490 |
|
491 |
if (.not.error) then |
492 |
C if climatology, fill dates for data with current model year |
493 |
if (iyearbc.eq.0) then |
494 |
write(6,*) |
495 |
write(6,*) 'Climatological Dataset is being used.' |
496 |
write(6,*) 'Current model year will be used to fill Header Dates' |
497 |
do n = 2, ndatebc-1 |
498 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000)*10000 |
499 |
enddo |
500 |
C For the first date subtract 1 year from the current model NYMD |
501 |
n = 1 |
502 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000-1)*10000 |
503 |
C For the last date add 1 year to the current model NYMD |
504 |
n = ndatebc |
505 |
nymdbc(n) = nymdbc(n) +(nymdmod/10000+1)*10000 |
506 |
endif |
507 |
|
508 |
C Write out header info |
509 |
write(6,*) ' Updated boundary condition data' |
510 |
write(6,*) ' ---------------------------------' |
511 |
write(6,*) ' Variable: ',cname |
512 |
write(6,*) ' Description: ',cdscrip |
513 |
write(6,*) ' Resolution: x= ',imbc,' y= ',jmbc,' Undefined value = ',undef |
514 |
write(6,*) ' Starting latitude = ',lat0,' longitude =',lon0 |
515 |
write(6,*) ' Data valid at these times: ' |
516 |
ndby3 = ndatebc/3 |
517 |
do n = 1, ndby3*3,3 |
518 |
write(6,1000) (nn,nymdbc(nn),nhmsbc(nn),nn=n,n+2) |
519 |
1000 format(3(2x,i3,':',i8,2x,i8)) |
520 |
enddo |
521 |
write(6,1000) (nn,nymdbc(nn),nhmsbc(nn),nn=ndby3*3+1,ndatebc) |
522 |
endif ! End error Check |
523 |
|
524 |
endif ! End MYID=0 Check |
525 |
|
526 |
c Broadcast information to other PEs |
527 |
c ---------------------------------- |
528 |
#if (mpi) |
529 |
call mpi_bcast ( error,1,mpi_logical,0,lattice%comm,ierror ) |
530 |
#endif |
531 |
if( error ) call my_exit (101) |
532 |
|
533 |
#if (mpi) |
534 |
call mpi_bcast ( ndatebc,1 ,mpi_integer,0,lattice%comm,ierror ) |
535 |
call mpi_bcast ( nymdbc,ndatebc,mpi_integer,0,lattice%comm,ierror ) |
536 |
call mpi_bcast ( nhmsbc,ndatebc,mpi_integer,0,lattice%comm,ierror ) |
537 |
#endif |
538 |
|
539 |
endif ! New Year Info Check |
540 |
|
541 |
C---------- Read SST data if necessary ------------------------------- |
542 |
|
543 |
found = .false. |
544 |
nd = 2 |
545 |
|
546 |
c If model time is not within the times of saved sst data |
547 |
c from previous call to getsst then read new data |
548 |
|
549 |
timemod = float(nymdmod) + float(nhms) /1000000 |
550 |
timebc1 = float(nymdbc1) + float(nhmsbc1)/1000000 |
551 |
timebc2 = float(nymdbc2) + float(nhmsbc2)/1000000 |
552 |
if (timemod .lt. timebc1 .or. timemod .ge. timebc2) then |
553 |
|
554 |
do while (.not.found .and. nd .le. ndatebc) |
555 |
timebc2 = float(nymdbc(nd)) + float(nhmsbc(nd))/1000000 |
556 |
if (timebc2 .gt. timemod) then |
557 |
nymdbc1 = nymdbc(nd-1) |
558 |
nymdbc2 = nymdbc(nd) |
559 |
nhmsbc1 = nhmsbc(nd-1) |
560 |
nhmsbc2 = nhmsbc(nd) |
561 |
if ( lattice%myid.eq.0 ) call bcdata (iunit, imbc, jmbc, nd, nd+1, sstbc1, sstbc2) |
562 |
#if (mpi) |
563 |
call mpi_bcast ( sstbc1,lattice%imglobal*lattice%jmglobal,mpi_double_precision,0,lattice%comm,ierror ) |
564 |
call mpi_bcast ( sstbc2,lattice%imglobal*lattice%jmglobal,mpi_double_precision,0,lattice%comm,ierror ) |
565 |
#endif |
566 |
found = .true. |
567 |
else |
568 |
nd = nd + 1 |
569 |
endif |
570 |
enddo |
571 |
|
572 |
c Otherwise the data from the last time in getsst surrounds the |
573 |
c current model time. |
574 |
|
575 |
else |
576 |
found = .true. |
577 |
endif |
578 |
|
579 |
if (.not.found) then |
580 |
if( lattice%myid.eq.0 ) print *, 'STOP: Could not find SST boundary condition dates surrounding the model time.' |
581 |
call my_finalize |
582 |
call my_exit (101) |
583 |
endif |
584 |
|
585 |
C---------- Interpolate SST data ------------------------------------ |
586 |
|
587 |
call interp_time ( nymdmod,nhms, nymdbc1,nhmsbc1, nymdbc2,nhmsbc2, fac1,fac2 ) |
588 |
|
589 |
do j = 1, jm |
590 |
do i = 1, im |
591 |
sst(i,j) = sstbc1( lattice%iglobal(i),lattice%jglobal(j) )*fac1 |
592 |
. + sstbc2( lattice%iglobal(i),lattice%jglobal(j) )*fac2 |
593 |
enddo |
594 |
enddo |
595 |
|
596 |
return |
597 |
end |
598 |
|
599 |
subroutine bcdata (iunit, im, jm, nrec1, nrec2, field1, field2) |
600 |
C************************************************************************ |
601 |
C!BCDATA |
602 |
C************************************************************************ |
603 |
C |
604 |
C!ROUTINE: BCDATA |
605 |
C!PROGRAMMER: Sharon Nebuda |
606 |
C!DATE CODED: April 29, 1996 |
607 |
C!DESCRIPTION: BCDATA reads the data from the file assigned to the |
608 |
C! passed unit number and returns data from the two times |
609 |
C! surrounding the current model time. The two record |
610 |
C! postitions are not assumed to be next to each other. |
611 |
C |
612 |
C!INPUT PARAMETERS: |
613 |
C! im number of x points |
614 |
C! jm number of y points |
615 |
C! nrec1 record number of the time before the model time |
616 |
C! nrec2 record number of the time after the model time |
617 |
C |
618 |
C!OUTPUT PARAMETERS: |
619 |
C! field1(im,jm) data field before the model time |
620 |
C! field2(im,jm) data field after the model time |
621 |
C |
622 |
C!REVISION HISTORY: |
623 |
C! NEW |
624 |
C |
625 |
C!ROUTINES CALLED: |
626 |
C |
627 |
C! none |
628 |
C |
629 |
C-------------------------------------------------------------------------- |
630 |
|
631 |
|
632 |
C--------------- Variable Declaration ------------------------------------- |
633 |
implicit none |
634 |
|
635 |
C Variables passed to the routine: |
636 |
integer iunit ! Unit number assigned to the data file |
637 |
integer im ! Number of x points |
638 |
integer jm ! Number of y points |
639 |
integer nrec1 ! Record number of the time before the model time |
640 |
integer nrec2 ! Record number of the time after the model time |
641 |
|
642 |
C Variables returned by the routine: |
643 |
real field1(im,jm) ! Real*8 Data before the model time |
644 |
real field2(im,jm) ! Real*8 Data after the model time |
645 |
|
646 |
C Variables unique to the routine: |
647 |
integer i,j ! DO loop counters |
648 |
real*4 f1(im,jm) ! Real*4 Data before the model time |
649 |
real*4 f2(im,jm) ! Real*4 Data after the model time |
650 |
|
651 |
C--------- Read file ----------------------------------------------- |
652 |
|
653 |
read(iunit,rec=nrec1) f1 |
654 |
read(iunit,rec=nrec2) f2 |
655 |
|
656 |
do j=1,jm |
657 |
do i=1,im |
658 |
field1(i,j) = f1(i,j) |
659 |
field2(i,j) = f2(i,j) |
660 |
enddo |
661 |
enddo |
662 |
|
663 |
return |
664 |
end |
665 |
subroutine bcheader (iunit, ndmax, nrec, |
666 |
. cname, cdscrip, im, jm, lat0, lon0, ndatebc, |
667 |
. nymdbc, nhmsbc, undef, error) |
668 |
C************************************************************************ |
669 |
C!BCHEADER |
670 |
C************************************************************************ |
671 |
C |
672 |
C!ROUTINE: BCHEADER |
673 |
C!PROGRAMMER: Sharon Nebuda |
674 |
C!DATE CODED: April 29, 1996 |
675 |
C!DESCRIPTION: BCHEADER reads the header info from the file assigned to the |
676 |
C! passed unit number and returns the info back. |
677 |
C |
678 |
C!INPUT PARAMETERS: |
679 |
C! iunit unit number assigned to the data file |
680 |
C! ndmax maximum number of date/times of the data |
681 |
C! nrec record number of the header info (or assume 1??) |
682 |
C |
683 |
C!OUTPUT PARAMETERS: |
684 |
C! cname name of the data in the file header |
685 |
C! cdscrip description of the data in the file header |
686 |
C! im number of x points |
687 |
C! jm number of y points |
688 |
C! lat0 starting latitude for the data grid |
689 |
C! lon0 starting longitude for the data grid |
690 |
C! ndatebc number of date/times of the data in the file |
691 |
C! nymdbc(ndmax) array of dates for the data including century |
692 |
C! nhmsbc(ndmax) array of times for the data |
693 |
C! undef value for undefined values in the data |
694 |
C! error logical TRUE if dataset problem |
695 |
C |
696 |
C!REVISION HISTORY: |
697 |
C! NEW |
698 |
C |
699 |
C!ROUTINES CALLED: |
700 |
C! none |
701 |
C |
702 |
C-------------------------------------------------------------------------- |
703 |
|
704 |
C--------------- Variable Declaration ------------------------------------- |
705 |
implicit none |
706 |
|
707 |
C Variables passed to the routine: |
708 |
integer iunit ! Unit number assigned to the data file |
709 |
integer ndmax ! Maximum number of dates for a given field |
710 |
integer nrec ! Record number of the header info (or assume 1??) |
711 |
|
712 |
C Variables returned by the routine: |
713 |
character*8 cname ! Name of the data in the file header |
714 |
character*80 cdscrip ! Description of the data in the file header |
715 |
integer im ! Number of x points |
716 |
integer jm ! Number of y points |
717 |
real lat0 ! Starting latitude of the data |
718 |
real lon0 ! Starting longitude of the data |
719 |
integer ndatebc ! Number of date/times of the data in the file |
720 |
integer nymdbc(ndmax) ! array of dates for the data including century |
721 |
integer nhmsbc(ndmax) ! array of times for the data |
722 |
real undef ! value for undefined values in the data |
723 |
logical error ! logical TRUE if dataset problem |
724 |
|
725 |
C Variables unique to the routine: |
726 |
integer i ! DO loop counters |
727 |
integer n |
728 |
integer*4 im_32 ! Number of x points |
729 |
integer*4 jm_32 ! Number of y points |
730 |
real*4 lat0_32 ! Starting latitude of the data |
731 |
real*4 lon0_32 ! Starting longitude of the data |
732 |
integer*4 ndatebc_32 ! Number of date/times of the data in the file |
733 |
integer*4 nymdbc_32(ndmax) ! array of dates for the data including century |
734 |
integer*4 nhmsbc_32(ndmax) ! array of times for the data |
735 |
real*4 undef_32 ! value for undefined values in the data |
736 |
|
737 |
C--------- Read file ----------------------------------------------- |
738 |
|
739 |
read(iunit,rec=nrec,err=500) cname, cdscrip, |
740 |
. im_32, jm_32, lat0_32, lon0_32, |
741 |
. ndatebc_32, undef_32, |
742 |
. (nymdbc_32(i), nhmsbc_32(i), i=1,ndatebc_32) |
743 |
|
744 |
im = im_32 |
745 |
jm = jm_32 |
746 |
lat0 = lat0_32 |
747 |
lon0 = lon0_32 |
748 |
undef = undef_32 |
749 |
|
750 |
ndatebc = ndatebc_32 |
751 |
do i=1,ndatebc |
752 |
nymdbc(i) = nymdbc_32(i) |
753 |
nhmsbc(i) = nhmsbc_32(i) |
754 |
enddo |
755 |
|
756 |
return |
757 |
500 continue |
758 |
print *, 'Error reading boundary condition from unit ',iunit |
759 |
error = .true. |
760 |
return |
761 |
end |