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C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_init_veg.F,v 1.5 2004/06/07 20:26:43 molod Exp $ |
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C $Name: $ |
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|
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subroutine fizhi_init_veg(mythid,vegdata,im,jm,Nsx,Nsy,Nxg,Nyg, |
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.maxtyp,nchp,lons,lats,surftype,tilefrac,igrd,ityp,chfr,chlt,chlon) |
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C*********************************************************************** |
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C Subroutine fizhi_init_veg - routine to read in the land surface types, |
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C interpolate to the models grid, and set up tile space for use by |
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C the land surface model, the albedo calculation and the surface |
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C roughness calculation. |
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C |
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C INPUT: |
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C |
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C mythid - thread number (processor number) |
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C vegdata - Character*40 Vegetation Dataset name |
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C im - longitude dimension |
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C jm - latitude dimension (number of lat. points) |
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C Nsx - Number of processors in x-direction |
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C Nsy - Number of processors in y-direction |
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C maxtyp - maximum allowable number of land surface types per grid box |
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C nchp - integer per-processor number of tiles in tile space |
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C lons - longitude in degrees [im,jm,nSx,nSy] |
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C lats - latitude in degrees [im,jm,nSx,nSy] |
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C |
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C OUTPUT: |
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C |
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C surftype - integer array of land surface types [im,jm,maxtyp,Nsx,Nsy] |
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C tilefrac - real array of corresponding land surface type fractions |
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C [im,jm,maxtyp,Nsx,Nsy] |
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C igrd - integer array in tile space of grid point number for each |
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C tile [nchp,Nsx,Nsy] |
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C ityp - integer array in tile space of land surface type for each |
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C tile [nchp,Nsx,Nsy] |
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C chfr - real array in tile space of land surface type fraction for |
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C each tile [nchp,Nsx,Nsy] |
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C |
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C NOTES: |
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C Vegetation type as follows: |
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C 1: BROADLEAF EVERGREEN TREES |
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C 2: BROADLEAF DECIDUOUS TREES |
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C 3: NEEDLELEAF TREES |
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C 4: GROUND COVER |
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C 5: BROADLEAF SHRUBS |
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C 6: DWARF TREES (TUNDRA) |
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C 7: BARE SOIL |
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C 8: DESERT |
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C 9: GLACIER |
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C 10: DARK DESERT |
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C 100: OCEAN |
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C*********************************************************************** |
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implicit none |
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#include "EEPARAMS.h" |
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|
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integer mythid,im,jm,maxtyp,nchp,Nsx,Nsy,Nxg,Nyg |
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integer surftype(im,jm,maxtyp,Nsx,Nsy) |
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integer igrd(nchp,Nsx,Nsy),ityp(nchp,Nsx,Nsy) |
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real tilefrac(im,jm,maxtyp,Nsx,Nsy) |
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real lats(im,jm,nSx,nSy), lons(im,jm,nSx,nSy) |
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real chfr(nchp,Nsx,Nsy),chlt(nchp,Nsx,Nsy),chlon(nchp,Nsx,Nsy) |
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character*40 vegdata |
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integer imdata,jmdata,Nxgdata,Nygdata |
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integer nchplocal,nchpland,biglobal,bjglobal |
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|
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integer*4 im_32, jm_32, Nxg_32, Nyg_32 |
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integer*4 iveg_32(im,jm,maxtyp,Nxg,Nyg) |
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real*4 veg_32(im,jm,maxtyp,Nxg,Nyg) |
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|
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integer i,j,k,bi,bj,ierr1,kveg |
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|
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call mdsfindunit( kveg, myThid ) |
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close(kveg) |
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open(kveg,file=vegdata,form='unformatted',access='sequential', |
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. iostat=ierr1) |
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if( ierr1.eq.0 ) then |
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read(kveg)im_32,jm_32,Nxg_32,Nyg_32,IVEG_32,VEG_32 |
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else |
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print * |
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print *, 'Veg Dataset: ',vegdata,' not found!' |
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print * |
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call exit(101) |
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endif |
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close(kveg) |
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IF (myThid.eq.1) THEN |
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imdata = im_32 |
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jmdata = jm_32 |
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Nxgdata = Nxg_32 |
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Nygdata = Nyg_32 |
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if( (imdata.ne.im) .or. (jmdata.ne.jm) .or. |
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. (Nxgdata.ne.Nxg) .or. (Nygdata.ne.Nyg) ) then |
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print * |
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print *, 'Veg Data Resolution is Incorrect! ' |
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print *,' Model Res: ',im,'x',jm,' Data Res: ',imdata,'x',jmdata |
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print *,' Model Nxg Nyg: ',Nxg,' ',Nyg,' Data Nxg Nyg: ',Nxgdata, |
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. ' ',Nygdata |
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print * |
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call exit(102) |
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ENDIF |
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|
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DO BJ = myByLo(myThid), myByHi(myThid) |
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DO BI = myBxLo(myThid), myBxHi(myThid) |
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|
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biglobal=bi+(myXGlobalLo-1)/im |
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bjglobal=bj+(myYGlobalLo-1)/jm |
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|
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do k = 1,maxtyp |
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do j = 1,jm |
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do i = 1,im |
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surftype(i,j,k,bi,bj) = iveg_32(i,j,k,biglobal,bjglobal) |
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tilefrac(i,j,k,bi,bj) = veg_32(i,j,k,biglobal,bjglobal) |
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enddo |
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enddo |
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enddo |
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|
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c create chip arrays for : |
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c igrd : grid index |
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c ityp : veg. type |
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c chfr : vegetation fraction |
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c chlon: chip longitude |
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c chlt : chip latitude |
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|
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c nchplnd<=nchplocal is the actual number of land chips |
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|
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c land points |
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c ----------- |
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nchplnd = 0 |
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do k=1,maxtyp |
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do j=1,jm |
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do i=1,im |
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if(surftype(i,j,k,bi,bj).lt.100.and. |
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. tilefrac(i,j,k,bi,bj).gt.0.)then |
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nchplnd = nchplnd + 1 |
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igrd (nchplnd,bi,bj) = i + (j-1)*im |
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ityp (nchplnd,bi,bj) = surftype(i,j,k,bi,bj) |
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chfr (nchplnd,bi,bj) = tilefrac(i,j,k,bi,bj) |
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chlon(nchplnd,bi,bj) = lons(i,j,bi,bj) |
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chlt (nchplnd,bi,bj) = lats(i,j,bi,bj) |
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endif |
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enddo |
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enddo |
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enddo |
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|
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c ocean points |
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c ------------ |
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nchplocal = nchplnd |
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|
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do k=1,maxtyp |
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do j=1,jm |
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do i=1,im |
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if(surftype(i,j,k,bi,bj).ge.100 .and. |
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. tilefrac(i,j,k,bi,bj).gt.0.)then |
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nchplocal = nchplocal + 1 |
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igrd (nchplocal,bi,bj) = i + (j-1)*im |
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ityp (nchplocal,bi,bj) = surftype(i,j,k,bi,bj) |
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chfr (nchplocal,bi,bj) = tilefrac(i,j,k,bi,bj) |
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chlon(nchplocal,bi,bj) = lons(i,j,bi,bj) |
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chlt (nchplocal,bi,bj) = lats(i,j,bi,bj) |
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endif |
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enddo |
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enddo |
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enddo |
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|
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print *, 'bi ',bi,' bj ',bj |
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print *, 'Number of Total Tiles: ',nchplocal |
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print *, 'Number of Land Tiles: ',nchplnd |
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print * |
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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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