add 5deg as destination grid

[DeniseWorthen]

Issue NOAA-EMC/global-workflow#1992 has been created to add the ESMF weights needed for the 5-deg destination grid to the g-w fix file locations. A one-line change in ocnicepost is required to add the 5-deg rectilinear as a destination grid.

[GwenChen-NOAA]

@DeniseWorthen, my request is not related to the 5deg grid, but it is related to the ocnicepost code. I looked at the sample rectilinear netCDF files (ice.0p25.nc and ocean.0p25.nc) generated using the ocnicepost code, and the output variables are not consistent with the requirements in the document in the global-workflow issue 1864. Specifically, the following changes need to be made:

For ice file (https://github.com/NOAA-EMC/gfs-utils/blob/develop/parm/ocnicepost/ice.csv):

1. remove sst_h
2. add frzmlt_h; freeze/melt potential (W/m^2)
3. add albsni_h; snow/ice broad band albedo (%)
4. add mlt_onset_h; melt onset date (day of year)
5. add frz_onset_h; freeze onset date (day of year)

For ocean file (https://github.com/NOAA-EMC/gfs-utils/blob/develop/parm/ocnicepost/ocean.csv)

1. remove ePBL
2. remove MLD_0125
3. remove evap
4. remove lprec
5. remove fprec

Please help update the csv files. Thanks!

[DeniseWorthen]

@GwenChen-NOAA The fortran code is there for the users and maintainers of the Post products to tailor to their needs.

[GwenChen-NOAA]

I opened a new PR (#28) to update ocean and ice variable lists in csv files.

[aerorahul]

looks good.
thank you for adding the 5-deg target interpolation grid.