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Issue created by Pallav Kumar Shrestha@shresthpMaintainer

mHM states_fluxes netCDF output are curvilinear even if coordinate system is set to regular latlon in mhm.nml

  • It was noted that the output netCDF files of mHM are saved as curvilinear irrespective of the coordinate system set in mhm.nml. I am working in regular latlon system but the mHM output according to CDO and NCO are in curvilinear system as shown in screenshots below.
  • The issue "seems" to be that the lat and lon are stored as 2D variable even for regular latlon system. This makes cdo and nco to assume its a curvilinear system. Storing the lat and lon as a vector instead should solve the problem @thober @schaefed @muellese (???)

cdo sinfo on the output file:

Screenshot_2020-03-09_at_11.59.46

ncdump -h on the output file:

Screenshot_2020-03-09_at_12.00.14

cdo griddes on the output file:

Screenshot_2020-03-09_at_12.01.22

cdo griddes on the input regular latlon pre.nc file for comparison:

Screenshot_2020-03-09_at_12.02.37