program convert_navytopo  implicit none  include 'netcdf.inc'!-----------------------------------------------------------------! make surface type netcdf file!-----------------------------------------------------------------  integer, parameter :: r8 = selected_real_kind(12)! File specific settings  integer, parameter :: nlon = 2160  !input grid : longitude points  integer, parameter :: nlat = 1080  !input grid : latitude  points  real(r8) :: lon(nlon)                   !longitude dimension array (1d)  real(r8) :: lat(nlat)                   !latitude dimension array (1d)   real(r8) :: longxy(nlon,nlat)           !longitude dimension array (2d)          real(r8) :: latixy(nlon,nlat)           !longitude dimension array (2d)  real(r8) :: edge(4)                     !N,E,S,W edges of grid  real(r8) :: dx,dy                       !grid increments  real(r8) :: tempelev(nlon,nlat)         !input elevation  real(r8) :: templandmask(nlon,nlat)     !input land mask  real(r8) :: elev(nlon,nlat)             !output elevation  real(r8) :: landmask(nlon,nlat)         !output land mask  integer :: dimlon_id                    !netCDF dimension id  integer :: dimlat_id                    !netCDF dimension id  integer :: lon_id                       !1d longitude array id  integer :: lat_id                       !1d latitude array id  integer :: longxy_id                    !2d longitude array id  integer :: latixy_id                    !2d latitude array id  integer :: edgen_id                     !northern edge of grid (edge(1)) id  integer :: edgee_id                     !eastern  edge of grid (edge(2)) id  integer :: edges_id                     !southern edge of grid (edge(3)) id  integer :: edgew_id                     !western  edge of grid (edge(4)) id  integer :: elev_id                      !elevation id  integer :: landmask_id                  !landmask id  integer :: i,j                          !indicis  integer :: ndata = 1                    !input unit  integer :: ncid                         !netCDF file id  integer :: dim1_id(1)                   !netCDF dimension id for 1-d variables  integer :: dim2_id(2)                   !netCDF dimension id for 2-d variables  integer :: status                       !status  character(len=256) :: filei, fileo      !input,output filenames  character(len=256) :: name,unit         !netCDF attributes!-----------------------------------------------------------------! Determine input and output file names  filei = '/ptmp/slevis/lsminput/new/navytopo/elev.ascii'  fileo = '/ptmp/slevis/lsminput/new/navytopo/mksrf_elev.nc'! -----------------------------------------------------------------! Determine grid for input data !! Data are 10 x 10 minute, stored in latitude bands,! from south to north. In a given latitude band, data begin! at dateline and proceed eastward.! -----------------------------------------------------------------! Define North, East, South, West edges of grid  edge(1) =   90.  edge(2) =  180.  edge(3) =  -90.  edge(4) = -180.! Make latitudes and longitudes at center of grid cell  dx = (edge(2)-edge(4)) / nlon  dy = (edge(1)-edge(3)) / nlat  do j = 1, nlat     do i = 1, nlon        latixy(i,j) = (edge(3)+dy/2.) + (j-1)*dy        longxy(i,j) = (edge(4)+dx/2.) + (i-1)*dx       end do  end do  lat(:) = latixy(1,:)  lon(:) = longxy(:,1)! -----------------------------------------------------------------! create netcdf file! -----------------------------------------------------------------  call wrap_create (fileo, nf_clobber, ncid)  call wrap_put_att_text (ncid, nf_global, 'data_type', 'elevation_data')! Define dimensions  call wrap_def_dim (ncid, 'lon' , nlon, dimlon_id)  call wrap_def_dim (ncid, 'lat' , nlat, dimlat_id)! Define grid variables  name = 'lon'  unit = 'degrees east'  dim1_id(1) = dimlon_id  call wrap_def_var (ncid,'LON', nf_float, 1, dim1_id, lon_id)  call wrap_put_att_text (ncid, lon_id, 'long_name', name)  call wrap_put_att_text (ncid, lon_id, 'units'    , unit)  name = 'lat'  unit = 'degrees north'  dim1_id(1) = dimlat_id  call wrap_def_var (ncid,'LAT', nf_float, 1, dim1_id, lat_id)  call wrap_put_att_text (ncid, lat_id, 'long_name', name)  call wrap_put_att_text (ncid, lat_id, 'units'    , unit)  name = 'longitude-2d'  unit = 'degrees east'  dim2_id(1) = dimlon_id  dim2_id(2) = dimlat_id  call wrap_def_var (ncid, 'LONGXY', nf_float, 2, dim2_id, longxy_id)  call wrap_put_att_text (ncid, longxy_id, 'long_name', name)  call wrap_put_att_text (ncid, longxy_id, 'units'    , unit)  name = 'latitude-2d'  unit = 'degrees north'  dim2_id(1) = dimlon_id  dim2_id(2) = dimlat_id  call wrap_def_var (ncid, 'LATIXY', nf_float, 2, dim2_id, latixy_id)  call wrap_put_att_text (ncid, latixy_id, 'long_name', name)  call wrap_put_att_text (ncid, latixy_id, 'units'    , unit)  name = 'northern edge of surface grid'  unit = 'degrees north'  call wrap_def_var (ncid, 'EDGEN', nf_float, 0, 0, edgen_id)  call wrap_put_att_text (ncid, edgen_id, 'long_name', name)  call wrap_put_att_text (ncid, edgen_id, 'units'    , unit)  name = 'eastern edge of surface grid'  unit = 'degrees east'  call wrap_def_var (ncid, 'EDGEE', nf_float, 0, 0, edgee_id)  call wrap_put_att_text (ncid, edgee_id, 'long_name', name)  call wrap_put_att_text (ncid, edgee_id, 'units'    , unit)  name = 'southern edge of surface grid'  unit = 'degrees north'  call wrap_def_var (ncid, 'EDGES', nf_float, 0, 0, edges_id)  call wrap_put_att_text (ncid, edges_id, 'long_name', name)  call wrap_put_att_text (ncid, edges_id, 'units'    , unit)  name = 'western edge of surface grid'  unit = 'degrees east'  call wrap_def_var (ncid, 'EDGEW', nf_float, 0, 0, edgew_id)  call wrap_put_att_text (ncid, edgew_id, 'long_name', name)  call wrap_put_att_text (ncid, edgew_id, 'units'    , unit)! Define input file specific variables  name = 'elevation'  unit = 'm'  dim2_id(1) = lon_id  dim2_id(2) = lat_id  call wrap_def_var (ncid ,'ELEVATION' ,nf_float, 2, dim2_id, elev_id)  call wrap_put_att_text (ncid, elev_id, 'long_name', name)  call wrap_put_att_text (ncid, elev_id, 'units'    , unit)  name = 'land mask'  unit = 'unitless'  call wrap_def_var (ncid ,'LANDMASK' ,nf_float, 2, dim2_id, landmask_id)  call wrap_put_att_text (ncid, landmask_id, 'long_name', name)  call wrap_put_att_text (ncid, landmask_id, 'units'    , unit)! End of definition  status = nf_enddef(ncid)! Read in formatted surface data  open (unit=ndata,file=trim(filei),status='unknown',form='formatted',iostat=status)  if (status .ne. 0) then     write (6,*)'failed to open ',trim(filei),' on unit ',ndata,' ierr=',status     stop  end if  do j = 1, nlat     do i = 1, nlon        read (ndata,*) templandmask(i,j), tempelev(i,j)     end do  end do  close(ndata)  do j = 1, nlat     do i = 1, nlon        if (i>=1 .and. i<=nlon/2) then           landmask(i+1080,j) = templandmask(i,j)           elev(i+1080,j) = tempelev(i,j)        else           landmask(i-1080,j) = templandmask(i,j)           elev(i-1080,j) = tempelev(i,j)        end if     end do  end do! Create output file  call wrap_put_var_realx (ncid, lon_id     , lon)  call wrap_put_var_realx (ncid, lat_id     , lat)  call wrap_put_var_realx (ncid, longxy_id  , longxy)  call wrap_put_var_realx (ncid, latixy_id  , latixy)  call wrap_put_var_realx (ncid, edgen_id   , edge(1))  call wrap_put_var_realx (ncid, edgee_id   , edge(2))  call wrap_put_var_realx (ncid, edges_id   , edge(3))  call wrap_put_var_realx (ncid, edgew_id   , edge(4))  call wrap_put_var_realx (ncid, elev_id    , elev)  call wrap_put_var_realx (ncid, landmask_id, landmask)  call wrap_close(ncid)end program convert_navytopo!===============================================================================subroutine wrap_create (path, cmode, ncid)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  character(len=*) path  integer cmode, ncid, ret  ret = nf_create (path, cmode, ncid)  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_create!===============================================================================subroutine wrap_def_dim (nfid, dimname, len, dimid)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: nfid, len, dimid  character(len=*) :: dimname  integer ret  ret = nf_def_dim (nfid, dimname, len, dimid)  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_def_dim!===============================================================================subroutine wrap_def_var (nfid, name, xtype, nvdims, vdims, varid)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: nfid, xtype, nvdims, varid  integer :: vdims(nvdims)  character(len=*) :: name  integer ret  ret = nf_def_var (nfid, name, xtype, nvdims, vdims, varid)  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_def_var!===============================================================================subroutine wrap_put_att_text (nfid, varid, attname, atttext)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: nfid, varid  character(len=*) :: attname, atttext  integer :: ret, siz  siz = len_trim(atttext)  ret = nf_put_att_text (nfid, varid, attname, siz, atttext)  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_put_att_text!===============================================================================subroutine wrap_put_var_realx (nfid, varid, arr)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: nfid, varid  real(r8) :: arr(*)  integer :: ret#ifdef CRAY  ret = nf_put_var_real (nfid, varid, arr)#else  ret = nf_put_var_double (nfid, varid, arr)#endif  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_put_var_realx!===============================================================================subroutine wrap_put_var_int (nfid, varid, arr)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: nfid, varid  integer :: arr(*)  integer :: ret  ret = nf_put_var_int (nfid, varid, arr)  if (ret.ne.NF_NOERR) call handle_error (ret)end subroutine wrap_put_var_int  !===============================================================================subroutine wrap_close (ncid)  implicit none  include 'netcdf.inc'  integer, parameter :: r8 = selected_real_kind(12)  integer :: ncid  integer :: ret  ret = nf_close (ncid)  if (ret.ne.NF_NOERR) then     write(6,*)'WRAP_CLOSE: nf_close failed for id ',ncid     call handle_error (ret)  end ifend subroutine wrap_close!===============================================================================subroutine handle_error(ret)  implicit none  include 'netcdf.inc'  integer :: ret  if (ret .ne. nf_noerr) then     write(6,*) 'NCDERR: ERROR: ',nf_strerror(ret)     call abort  endifend subroutine handle_error!===============================================================================