[gdal-dev] Reading NetCDF files from EPA RSIG

[Kodi Arfer]

Looking at some NetCDF files produced by EPA RSIG, which is described at

https://www.epa.gov/hesc/web-access-rsig-data

I've found that GDAL 3.4.3 doesn't recognize them as readable at all 
("ERROR 4: `rsig.nc' not recognized as a supported file format."), 
although I can open them with e.g. the R library `ncdf4`. You can get a 
400-kb example file at

https://ofmpub.epa.gov/rsig/rsigserver?SERVICE=wcs&VERSION=1.0.0&REQUEST=GetCoverage&COVERAGE=tropomi.offl.no2.nitrogendioxide_tropospheric_column&minimum_quality=50&BBOX=-70,24,-65,30&TIME=2019-11-01T00:00:00Z/2019-11-01T23:00:00Z&FORMAT=netcdf-coards

I spoke to an administrator of the service and he believes that valid 
NetCDF is being produced. Any idea what's going on?