CATS version2023 netcdf input variables - tide_currents

[VikNikolaus]

Hi everyone,

I am new to working with tides and am trying to compute tidal currents for a specific location in the Southern Ocean using the CATS 2008-version2023 netCDF file.

When using pyTMD.compute.tide_currents, I encountered an error because the OTIS.py script appears to be looking for the variables uRe and uIm. However, the version of the CATS model I am using only provides transports (variables named URe and UIm) rather than velocities. I assume the same applies to the meridional component (VRe/VIm).

I’m unsure how to handle this mismatch. Is there a way to adapt pyTMD to work with transport variables, or is additional processing required to convert transports to velocities?

I apologize if this is a basic question, but I’m currently stumped and would appreciate any guidance.

Cheers,
Viktoria

[tsutterley]

Hi @VikNikolaus ,
You're absolutely right, the variable names changed from the (pre-release) version I have. The units might also be different. I'll figure out exactly what was done and get it fixed. Sorry about that!

[tsutterley]

Should be fixed in main. Sorry about that. I should have checked for changes upon the release of TMD3.

[VikNikolaus]

Brilliant, thank you so much!