Which tool do you currently use for regridding and reprojecting?

[Fabien]

Hi all,

This is a general question for the "geoscience xarray users".

I was wondering what tool do you currently use to:
1. reproject your xarray datasets (for example, for comparing model data defined on a certain projection with satellite data defined in another projection)
2. regrid your xarray datasets (for example, from a high spatial resolution to a lower spatial resolution)

I'd be interested in your tools of choice for these operations. My feeling is that there is a long way until xarray-based workflow can compete with iris-based workflows on this one, but I'd love to be proven wrong ;-)

My own answer to the question:
- for 1, I have a homegrown solution (which is not dask-aware, memory hungry and not optimized for big data workflow, and therefore suboptimal)
- for 2, I am eagerly waiting for https://github.com/pydata/xarray/pull/924 to be merged in xarray itself

Thanks!

Fabien

[Joe Hamman]

Fabien -

First, let me say a number of us are quite eager to put together a package that supports the kind of things you are looking for.  We have been discussing the design of such a package here: https://aospy.hackpad.com/Regridding-Design-Document-tENJARIeg83.  We'd very much like your input on this document.

To address your specific questions, I have largely used non-python tools for these tasks (mostly CDO for remapping). I don't like this workflow but its what I had available to me at the time I needed to move forward.

Joe

Joe Hamman
Post-Doctoral Researcher
Research Applications Laboratory
Hydrometeorological Applications Program
National Center for Atmospheric Research
Phone: 206-498-5497
Email:  jha...@ucar.edu

Web:  joehamman.com

--
You received this message because you are subscribed to the Google Groups "xarray" group.
To unsubscribe from this group and stop receiving emails from it, send an email to xarray+unsubscribe@googlegroups.com.
To post to this group, send email to xar...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/xarray/ab0586e5-1284-4dc3-8b86-28571e84068b%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.