hunter3789 / ensalign

Spatial Alignment of Ensemble Precipitation

1. Required packages/libraries

• MPI
• Gfortran
• ecCodes (Version 2.27.0), for GRIB I/O
• NetCDF

2. Build program

• Set the paths of ecCodes and NetCDF in 'buildit_mpi' (Already set)
• Execute 'buildit_mpi' in the 'build' directory in the project

3. Run program

• Command line : ${path_of_program}/ensalign ${YYYYMMDDHH} ${fhr} ${input_file_path}
• Command line (with MPI): mpirun -np ${number_of_processors} ${path_of_program}/ensalign ${YYYYMMDDHH} ${fhr} ${input_file_path}

4. Output file

4.1) command line to read the header of output file

• ncdump -h ${filename}

4.2) variables

• ensfcst(nmembers, y, x) : Each member's original preicipitation field from ensemble system
• ensshffcst(nshfpass, nmembers, y, x) : Each member's aligned precipitation field
• shiftvec_u(nshfpass, nmembers, y, x), shiftvec_v(nshfpass, nmembers, y, x) : Each member's shift vector fields
• ensmean(y, x) : Ensemble mean of precipitation
• enspm(y, x) : Ensemble PM mean of precipitation
• enslpm(y, x) : Ensemble LPM mean of precipitation
• ensshfmean(nshfpass, y, x) : Spatially Aligned Mean (SAM) of precipitation
• ensshflpm(nshfpass, y, x) : Spatially Aligned Mean with LPM method applied (SAM-LPM) of precipitation