Ensure no missing values in coordinates

[rsignell-usgs]

I know this should really be done in xarray, but I've been using the xbitinfo .to_compressed_netcdf() and .to_compressed_zarr() convenience functions even when I'm not using bitrounding because... they are convenient! :)

CF conventions don't allow missing values in coordinates but xarray produces them nonetheless. I usually remove them via this little code snippet:

for index in ds.indexes:
    ds[index].encoding['_FillValue'] = None

Would there be any downside to adding this to to_compressed_netcdf so users don't have to?

[observingClouds]

Hi @rsignell-usgs,
Sorry for the slow response! Glad you like the convenience functions. Part of why I haven't responded yet, is that I'm not a big fan in implementing functions that should be done at a different place. However, the convenience functions could be an exception as they wrap stuff anyway. Just to be clear here, your suggestion does not get rid of missing coordinates, but rather gets rid of the _FillValue attribute so it looks like no coordinate is missing, am I right?