Add small program to read UMD mask file, used by the orog

code, and convert it to netcdf.

Fixes ufs-community#786.

sorc/orog_mask_tools.fd/CMakeLists.txt

@@ -7,6 +7,7 @@ add_subdirectory(orog.fd)
 add_subdirectory(orog_gsl.fd)
 add_subdirectory(lake.fd)
 add_subdirectory(inland.fd)
+add_subdirectory(mask.fd)
 
 # If doxygen documentation we enabled, build it.
 if(ENABLE_DOCS)

sorc/orog_mask_tools.fd/mask.fd/CMakeLists.txt

@@ -0,0 +1,17 @@
+list(APPEND fortran_src
+  mask.f90
+)
+
+if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel)$")
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -r8 -i4 -convert big_endian")
+elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
+  set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fdefault-real-8")
+endif()
+
+set(exe_name mask.exe)
+add_executable(${exe_name} ${fortran_src})
+target_link_libraries(
+  ${exe_name}
+  NetCDF::NetCDF_Fortran)
+
+install(TARGETS ${exe_name})

sorc/orog_mask_tools.fd/mask.fd/mask.f90

@@ -0,0 +1,101 @@
+ program mask_netcdf
+
+! Convert the UMD land use data to netcdf.
+
+ use netcdf
+
+ implicit none
+
+ integer*4, parameter :: idim=43200
+ integer*4, parameter :: jdim=21600
+
+ character(len=150) :: filenetcdf, fileraw
+
+ integer :: i, istat, ncid, status, dim_idim, dim_jdim
+ integer :: dim_idim_p1, dim_jdim_p1
+ integer :: id_lon, id_lat, id_data
+
+ integer(kind=1), allocatable :: mask(:,:)
+
+ real(kind=8), allocatable :: lats(:), lons(:)
+ real(kind=8)    :: lat11, lon11, dx, dy
+
+ dx = 1.0_8/120.0_8
+ dy = -(1.0_8/120.0_8)
+
+ lat11 =  90.0_8 + dy*0.5_8
+ lon11 = -180.0_8 + dx*0.5_8
+
+ allocate(lons(idim),lats(jdim),mask(idim,jdim))
+
+ do i = 1, idim
+   lons(i) = real((i-1),8) * dx + lon11
+   print*,'lon ',i,lons(i)
+ enddo
+
+ do i = 1, jdim
+   lats(i) = real((i-1),8) * dy + lat11
+   print*,'lat ',i,lats(i)
+ enddo
+
+ fileraw="/scratch1/NCEPDEV/global/glopara/fix/raw/orog/landcover30.fixed"
+
+ open(11, file=trim(fileraw), access='direct', recl=idim*jdim)
+ read(11, rec=1, iostat=istat) mask
+ if (istat /= 0) stop 99
+ close(11)
+
+ print*,'mask ', maxval(mask),minval(mask)
+ where(mask > 0) mask = 1
+
+ filenetcdf="./mask.nc"
+
+ print*,"- CREATE FILE: ", trim(filenetcdf)
+ status=nf90_create(filenetcdf, IOR(NF90_NETCDF4,NF90_CLASSIC_MODEL), ncid)
+ if (status /= nf90_noerr) stop 1
+
+ status=nf90_def_dim(ncid, 'idim', idim, dim_idim)
+ if (status /= nf90_noerr) stop 3
+
+ status=nf90_def_dim(ncid, 'jdim', jdim, dim_jdim)
+ if (status /= nf90_noerr) stop 2
+
+ status=nf90_def_dim(ncid, 'idim_p1', (idim+1), dim_idim_p1)
+ if (status /= nf90_noerr) stop 4
+
+ status=nf90_def_dim(ncid, 'jdim_p1', (jdim+1), dim_jdim_p1)
+ if (status /= nf90_noerr) stop 5
+
+ status=nf90_put_att(ncid, nf90_global, 'source', 'UMD land use')
+ if (status /= nf90_noerr) stop 6
+
+ status=nf90_def_var(ncid, 'lat', nf90_double, dim_jdim, id_lat)
+ if (status /= nf90_noerr) stop 17
+
+ status=nf90_put_att(ncid, id_lat, 'long_name', 'grid cell center latitude')
+ if (status /= nf90_noerr) stop 10
+
+ status=nf90_def_var(ncid, 'lon', nf90_double, dim_idim, id_lon)
+ if (status /= nf90_noerr) stop 16
+
+ status=nf90_put_att(ncid, id_lon, 'long_name', 'grid cell center longitude')
+ if (status /= nf90_noerr) stop 10
+
+ status=nf90_def_var(ncid, 'land_mask', nf90_byte, (/dim_idim,dim_jdim/), id_data)
+ if (status /= nf90_noerr) stop 20
+
+ status=nf90_enddef(ncid)
+ if (status /= nf90_noerr) stop 22
+
+ status=nf90_put_var(ncid, id_lon, lons)
+ if (status /= nf90_noerr) stop 19
+
+ status=nf90_put_var(ncid, id_lat, lats)
+ if (status /= nf90_noerr) stop 20
+
+ status=nf90_put_var(ncid, id_data, mask)
+ if (status /= nf90_noerr) stop 24
+
+ status=nf90_close(ncid)
+
+ end program mask_netcdf

sorc/orog_mask_tools.fd/mask.fd/runit.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+#SBATCH --ntasks=1 --nodes=1
+#SBATCH -t 0:03:00
+#SBATCH -A fv3-cpu
+#SBATCH -q debug
+#SBATCH -J fv3
+#SBATCH -o ./log
+#SBATCH -e ./log
+
+set -x
+
+source ../../machine-setup.sh > /dev/null 2>&1
+module use ../../../modulefiles
+module load build.$target.intel
+module list
+
+../../../exec/mask.exe
+
+