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NCAR / ctsm_python_gallery

A place to put sample workflows and tools that use ctsm model output
Apache License 2.0
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Regridding #8

Open wwieder opened 5 years ago

wwieder commented 5 years ago

Can we use existing tools for regridding multi-model ensembles (e.g. LUMIP)

jhamman commented 5 years ago

We've been working with xESMF lately. We'll probably need to think about some simple wrapper to handle the multi-model ensemble but that should be doable.

https://xesmf.readthedocs.io/en/latest/

yelizy commented 5 years ago

I have been using CDO operators for remapping. It seems possible that we can call CDO functions in Python scripts. I have not tested yet, but these operators would be useful for zonal statistics, vertical interpolation, etc. calculations.

https://github.com/Try2Code/cdo-bindings https://code.mpimet.mpg.de/projects/cdo/wiki/Cdo%7Brbpy%7D

pdirmeyer commented 5 years ago

CDO is great for this and so many purposes (subsetting, reformatting, GRIB-NetCDF conversions, etc.) related to the kinds of data we all generate and use - fast and powerful. If it will work, why reinvent the wheel?

katiedagon commented 4 years ago

A good example for our gallery could be a bias plot (model compared to obs), where something needs to be regridded in the process. We could pull examples from ILAMB for this.

katiedagon commented 4 years ago

GeoCAT also has an interpolation function where they migrated the linint2 function from NCL https://geocat-comp.readthedocs.io/en/latest/user_api/generated/geocat.comp.linint2.html https://www.ncl.ucar.edu/Document/Functions/Built-in/linint2.shtml

wwieder commented 4 years ago

I used xESMF as suggested by @jhamman, but the current approach lost information around the coasts.