Combine multiple 2D IODA files to one output file

JEDI
1

Hello,

Is there a script or python code in JEDI to combine multiple 2D IODA V3 observation files (e.g., ObsValue/aerosolOpticalDepth(Location, Channel)) into one output file? I attempted to modify combine_obsspace.py for the 1D case with “Location” only for this purpose. But it hasn’t been successful yet.

Thanks,
Bo

2

Hi Bo,

We are working on an official solution for combining files/obs spaces, but this is still under development. In the meantime it might be best to try NCO tools to combine files. combine_obsspace.py was made specifically for the ncdiag ioda converter (while processing conventional obs data) and I’m not sure it would be easy to make this script work with 2D data.

Take a look at this note about using NCO tools to concatenate files: GES DISC. You should be able to substitute “Location” for “TIME” in their example. This should handle multi-dimensional variables.

I’m happy to help if you have more questions about this.

Steve

3

Hi Steve,

Thanks very much for your quick response and sharing the link. It worked to use NCO tools to concatenate 2D AOD IODA v3 files.

Thanks,
Bo