Remapping task

[forsyth2]

It may be useful to set up a zppy task for remapping and make it the dependency of qbo diags.

[whannah1]

For more context - for our SciDAC QBO project we were hoping to use the QBO diags output directly and take the different in the QBO amplitude between the model and reanalysis, but we can only do that if the datasets use the same levels. Furthermore, even though the stratospheric models levels will be nearly equal to pressure levels, it would be better to interpolate to a common set of pressure levels, or match whatever is used by reanalysis and add this pressure level array to the json files.

[chengzhuzhang]

@whannah1 thanks for providing the context. I will create an issue in E3SM diags to see if it can be more straightforward to address from e3sm diags side. I believe the level array is already included in the json files with @golaz 's recent fix https://github.com/E3SM-Project/e3sm_diags/pull/646/files. It will be available from the upcoming e3sm unified release...