Open AndrewWittenberg opened 5 years ago
It's probably possible to remove that restriction, but was simpler in the programming to root the ensemble using a file variable. I recall talking about doing this and certainly understand the issue.
Meanwhile that error message could probably be improved.
The documentation for ENSEMBLE says that
"At least one file must contain each of the variables being aggregated in the ensemble, as a file variable not a LET/D variable. "
I'm wondering if it'd be possible to relax that restriction. I have files from different models that I'd like to regrid to a new common grid (not an existing grid in one of the files), and then form an ensemble. Here's an example of what I'd like to do:
Here we get an error. Instead, I'd like to get an ensemble dataset containing one variable, uwnd_ave, consisting of the regridded time-average from each dataset.
I suppose a workaround would be to save out one of the LET/D variables to a new file, cancel the original file, and use the new file instead. So continuing the above example:
But is this something that Ferret could do on-the-fly in memory, without the user having to save out a new temporary file?