C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_init_veg.F,v 1.25 2012/03/23 20:23:16 jmc Exp $ C $Name: $ #include "FIZHI_OPTIONS.h" SUBROUTINE FIZHI_INIT_VEG(myThid,vegdata,im,jm,nSx,nSy,Nxg,Nyg, & maxtyp,nchp,nchptot,nchpland,lons,lats,surftype,tilefrac, & igrd,ityp,chfr,chlt,chlon) C*********************************************************************** C Subroutine fizhi_init_veg - routine to read in the land surface types, C interpolate to the models grid, and set up tile space for use by C the land surface model, the albedo calculation and the surface C roughness calculation. C C INPUT: C C myThid - thread number (processor number) C vegdata - Character*40 Vegetation Dataset name C im - longitude dimension C jm - latitude dimension (number of lat. points) C nSx - Number of processors in x-direction C nSy - Number of processors in y-direction C maxtyp - maximum allowable number of land surface types per grid box C nchp - integer per-processor number of tiles in tile space C lons - longitude in degrees [im,jm,nSx,nSy] C lats - latitude in degrees [im,jm,nSx,nSy] C C OUTPUT: C C surftype - integer array of land surface types [im,jm,maxtyp,nSx,nSy] C tilefrac - real array of corresponding land surface type fractions C [im,jm,maxtyp,nSx,nSy] C igrd - integer array in tile space of grid point number for each C tile [nchp,nSx,nSy] C ityp - integer array in tile space of land surface type for each C tile [nchp,nSx,nSy] C chfr - real array in tile space of land surface type fraction for C each tile [nchp,nSx,nSy] C C NOTES: C Vegetation type as follows: C 1: BROADLEAF EVERGREEN TREES C 2: BROADLEAF DECIDUOUS TREES C 3: NEEDLELEAF TREES C 4: GROUND COVER C 5: BROADLEAF SHRUBS C 6: DWARF TREES (TUNDRA) C 7: BARE SOIL C 8: DESERT C 9: GLACIER C 10: DARK DESERT C 100: OCEAN C*********************************************************************** IMPLICIT NONE #include "EEPARAMS.h" INTEGER myThid,im,jm,maxtyp,nchp,nSx,nSy,Nxg,Nyg INTEGER nchptot(nSx,nSy), nchpland(nSx,nSy) INTEGER surftype(im,jm,maxtyp,nSx,nSy) INTEGER igrd(nchp,nSx,nSy),ityp(nchp,nSx,nSy) _RL tilefrac(im,jm,maxtyp,nSx,nSy) _RL lats(im,jm,nSx,nSy), lons(im,jm,nSx,nSy) _RL chfr(nchp,nSx,nSy),chlt(nchp,nSx,nSy),chlon(nchp,nSx,nSy) C- local variables: CHARACTER*40 vegdata INTEGER i,j,k,bi,bj INTEGER imdata,jmdata,Nxgdata,Nygdata INTEGER biglobal,bjglobal INTEGER ierr1,kveg INTEGER*4 im_32, jm_32, Nxg_32, Nyg_32 INTEGER*4 iveg_32(im,jm,maxtyp,Nxg,Nyg) REAL*4 veg_32(im,jm,maxtyp,Nxg,Nyg) WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: ', & 'defining surface type and fraction: ----------------------' #ifdef _BYTESWAPIO C using MDS_BYTESSWAP for sequential acces file does not work STOP 'ABNORMAL END: S/R FIZHI_INIT_VEG' #endif CALL MDSFINDUNIT( kveg, myThid ) close(kveg) open(kveg,file=vegdata,form='unformatted',access='sequential', & iostat=ierr1) if( ierr1.eq.0 ) then rewind(kveg) read(kveg)im_32,jm_32,Nxg_32,Nyg_32,iveg_32,veg_32 else print * print *, 'Veg Dataset: ',vegdata,' not found!' print * call EXIT(101) endif close(kveg) #if defined( _BYTESWAPIO ) defined( ALLOW_MDSIO ) CALL MDS_BYTESWAPI4(1,im_32) CALL MDS_BYTESWAPI4(1,jm_32) CALL MDS_BYTESWAPI4(1,nxg_32) CALL MDS_BYTESWAPI4(1,nyg_32) #endif IF (myThid.EQ.1) THEN imdata = im_32 jmdata = jm_32 Nxgdata = Nxg_32 Nygdata = Nyg_32 if( (imdata.ne.im) .or. (jmdata.ne.jm) .or. & (Nxgdata.ne.Nxg) .or. (Nygdata.ne.Nyg) ) then print * print *, 'Veg Data Resolution is Incorrect! ' print *,' Model Res: ',im,'x',jm,' Data Res: ',imdata,'x',jmdata print *,' Model Nxg Nyg: ',Nxg,' ',Nyg, & ' Data Nxg Nyg: ',Nxgdata,' ',Nygdata print * call EXIT(102) endif ENDIF DO bj = myByLo(myThid), myByHi(myThid) DO bi = myBxLo(myThid), myBxHi(myThid) biglobal=bi+(myXGlobalLo-1)/im bjglobal=bj+(myYGlobalLo-1)/jm #if defined( _BYTESWAPIO ) defined( ALLOW_MDSIO ) CALL MDS_BYTESWAPR4( im*jm*maxtyp, & veg_32(1,1,1,biglobal,bjglobal) ) CALL MDS_BYTESWAPI4( im*jm*maxtyp, & iveg_32(1,1,1,biglobal,bjglobal) ) #endif do k = 1,maxtyp do j = 1,jm do i = 1,im surftype(i,j,k,bi,bj) = iveg_32(i,j,k,biglobal,bjglobal) tilefrac(i,j,k,bi,bj) = veg_32(i,j,k,biglobal,bjglobal) enddo enddo enddo ENDDO ENDDO C create chip arrays for : C igrd : grid index C ityp : veg. type C chfr : vegetation fraction C chlon: chip longitude C chlt : chip latitude C nchpland<=nchptot is the actual number of land chips WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: ', & 'setting surface Tiles:' DO bj = myByLo(myThid), myByHi(myThid) DO bi = myBxLo(myThid), myBxHi(myThid) C- initialise grid index array: do i=1,nchp igrd(i,bi,bj) = 1 enddo C- land points: nchpland(bi,bj) = 0 do k=1,maxtyp do j=1,jm do i=1,im if(surftype(i,j,k,bi,bj).lt.100 .and. & tilefrac(i,j,k,bi,bj).gt.0.) then nchpland(bi,bj) = nchpland(bi,bj) + 1 igrd (nchpland(bi,bj),bi,bj) = i + (j-1)*im ityp (nchpland(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) chfr (nchpland(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) chlon(nchpland(bi,bj),bi,bj) = lons(i,j,bi,bj) chlt (nchpland(bi,bj),bi,bj) = lats(i,j,bi,bj) endif enddo enddo enddo C- ocean points: nchptot(bi,bj) = nchpland(bi,bj) do k=1,maxtyp do j=1,jm do i=1,im if(surftype(i,j,k,bi,bj).ge.100 .and. & tilefrac(i,j,k,bi,bj).gt.0.) then nchptot(bi,bj) = nchptot(bi,bj) + 1 igrd (nchptot(bi,bj),bi,bj) = i + (j-1)*im ityp (nchptot(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) chfr (nchptot(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) chlon(nchptot(bi,bj),bi,bj) = lons(i,j,bi,bj) chlt (nchptot(bi,bj),bi,bj) = lats(i,j,bi,bj) endif enddo enddo enddo WRITE(standardMessageUnit,'(2(A,I4),2(A,I10))') ' bi=', bi, & ', bj=', bj, ', # of Land Tiles=', nchpland(bi,bj), & ', Total # of Tiles=', nchptot(bi,bj) ENDDO ENDDO WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: done' RETURN END