Way to Save Reader Data as Local File?

[toddChavezz]

Is there a way to save the data a reader read from a remote URL during the run of a simulation as a .nc file or similar?
In cases, where the remote THREDDS server is down this would be quite helpful. Also, it would reduce traffic.

Any help or hint is highly appreciated! Thanks in advance.

[knutfrode]

I agree it would be nice to have, but is not implemented. Thus only possibility is to download locally with eg Xarray or Nco/ncks