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C $Header: /u/gcmpack/MITgcm/verification/fizhi-gridalt-hs/code/fizhi_init_veg.F,v 1.1 2004/08/24 19:33:15 molod Exp $ |
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molod |
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C $Name: $ |
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#include "FIZHI_OPTIONS.h" |
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SUBROUTINE FIZHI_INIT_VEG(myThid,vegdata,im,jm,nSx,nSy,Nxg,Nyg, |
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& maxtyp,nchp,nchptot,nchpland,lons,lats,surftype,tilefrac, |
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& 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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INTEGER myThid,im,jm,maxtyp,nchp,nSx,nSy,Nxg,Nyg |
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INTEGER nchptot(nSx,nSy), nchpland(nSx,nSy) |
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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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_RL tilefrac(im,jm,maxtyp,nSx,nSy) |
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_RL lats(im,jm,nSx,nSy), lons(im,jm,nSx,nSy) |
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_RL chfr(nchp,nSx,nSy),chlt(nchp,nSx,nSy),chlon(nchp,nSx,nSy) |
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C- local variables: |
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CHARACTER*40 vegdata |
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INTEGER i,j,k,bi,bj |
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CHARACTER*15 aim_landfile |
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_RS aim_landFr(-1:34,-1:34,6,1) |
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DATA aim_landfile /'landFrc.2f2.bin'/ |
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WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: ', |
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& 'defining surface type and fraction: ----------------------' |
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CALL READ_REC_XY_RS(aim_LandFile,aim_landFr,1,0,myThid) |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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do j = 1,jm |
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do i = 1,im |
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if(aim_landfr(i,j,bi,bj).gt.0.1) then |
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surftype(i,j,1,bi,bj) = 1 |
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tilefrac(i,j,1,bi,bj) = 0.5 _d 0 |
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surftype(i,j,2,bi,bj) = 2 |
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tilefrac(i,j,2,bi,bj) = 0.5 _d 0 |
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else |
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surftype(i,j,1,bi,bj) = 100 |
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tilefrac(i,j,1,bi,bj) = 0.99 _d 0 |
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surftype(i,j,2,bi,bj) = 100 |
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tilefrac(i,j,2,bi,bj) = 0.01 _d 0 |
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endif |
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enddo |
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enddo |
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do k = 3,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) = 0 |
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tilefrac(i,j,k,bi,bj) = 0. |
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enddo |
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enddo |
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enddo |
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ENDDO |
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ENDDO |
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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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C nchpland<=nchptot is the actual number of land chips |
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WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: ', |
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& 'setting surface Tiles:' |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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C- initialise grid index array: |
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do i=1,nchp |
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igrd(i,bi,bj) = 1 |
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enddo |
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C- land points: |
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nchpland(bi,bj) = 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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nchpland(bi,bj) = nchpland(bi,bj) + 1 |
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igrd (nchpland(bi,bj),bi,bj) = i + (j-1)*im |
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ityp (nchpland(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) |
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chfr (nchpland(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) |
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chlon(nchpland(bi,bj),bi,bj) = lons(i,j,bi,bj) |
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chlt (nchpland(bi,bj),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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C- ocean points: |
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nchptot(bi,bj) = nchpland(bi,bj) |
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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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nchptot(bi,bj) = nchptot(bi,bj) + 1 |
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igrd (nchptot(bi,bj),bi,bj) = i + (j-1)*im |
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ityp (nchptot(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) |
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chfr (nchptot(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) |
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chlon(nchptot(bi,bj),bi,bj) = lons(i,j,bi,bj) |
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chlt (nchptot(bi,bj),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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WRITE(standardMessageUnit,'(2(A,I4),2(A,I10))') ' bi=', bi, |
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& ', bj=', bj, ', # of Land Tiles=', nchpland(bi,bj), |
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& ', Total # of Tiles=', nchptot(bi,bj) |
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ENDDO |
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ENDDO |
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WRITE(standardMessageUnit,'(2A)') ' FIZHI_INIT_VEG: done' |
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RETURN |
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END |
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