Activity for Jonathan Wynn Smith
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Jonathan Wynn Smith posted a comment on discussion Help
Here is the ncdump -h of the input file as it was too large to post: netcdf glm_source_ncremap_nan_all_vars5 { dimensions: nlat = 5424 ; nlon = 5424 ; grid_corners = 4 ; variables: float glm_ff(nlat, nlon) ; glm_ff:_FillValue = NaNf ; glm_ff:units = "Number of flashes 2km squared per seconds in a month" ; glm_ff:standard_name = "GLM Flash Frequency" ; glm_ff:coordinates = "lon lat" ; float lat(nlat, nlon) ; lat:units = "degrees_east" ; lat:standard_name = "latitude" ; lat:long_name = "latitude" ;...
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Here is the destination file:
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I made the files to have with the python netCDF4 library to have a fill_value = NaN. That resulted in this error: ncks: WARNING nco_lon_dff_brnch_dgr() reports lon_r, lon_l, lon_dff = 9.96921e+36, 6.09584, 9.96921e+36 ncks: nco_grd_nfr() WARNING reports non-CCW gridcell at idx=0, (lat,lon)_idx=(0,0), (lat,lon) = (9.96921e+36, 9.96921e+36) I used ncatted like so to change the missing values of the lat, lon, grid_corner_lon, and grid_corner_lat variables: ncatted -a _FillValue,lat,m,f,1.0e36 glm_source_ncremap_nan_all_vars.nc...
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Hello: ncremap -D 3 -a cns -i glm_source_ncremap_nan_all_vars5.nc -v glm_ff -d c96_grid_May2019_region_0_to_180_no_time.nc -o glm_downscale_052019_ncremap.nc I have a large set of GOES GLM data that I would like to downscale. It has lots of missing values due to the way the GOES FOV is project onto a sphere. I am getting this error when I substitute 1e+36 in for the missing values: ncks: WARNING nco_lon_dff_brnch_dgr() reports lon_r, lon_l, lon_dff = 1e+36, 6.09584, 1e+36 ncks: nco_grd_nfr() WARNING...
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Hello I have Geostationary Lightning Mapper data with a 5424 x 5424 resolution that I would like to reduce to a 162 x128 model grid resolution (1 degree lat by 1.25 degree lon). It seems that the conservative regridding is best: This is the command running on my workstation: ncremap -a cns -D 3 -v glm_ff -m latlon_GOES_16_GLM-FD.nc -s glm_ff.nc -d c96_grid_May2019_region.nc The command has run for nearly 24 hours. It appears to be running the command ESMF_RegridWeight. I have attached the log file....
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