search

MetOffice / CSET

Toolkit for evaluation and investigation of numerical models for weather and climate applications.
https://metoffice.github.io/CSET/
Apache License 2.0
10 stars 4 forks source link

Document what coordinate system the subarea extraction uses #668

Open jfrost-mo opened 4 months ago

jfrost-mo commented 4 months ago

What problem does your feature request solve?

Currently it uses the grid coordinates, while the documentation in rose edit doesn't make it clear whether real world coordinates, or grid coordinates should be used. This is relevant for rotated pole domains, as for non-rotated pole domains they are the same.

Describe the solution you'd like

This should be clearly documented in the rose edit description.

Describe alternatives you've considered

We should consider whether we actually want to use the grid coordinates, or whether we should use the real world coordinates, and regrid them before use. I'm not sure what would be expected here.

jfrost-mo commented 4 months ago

@daflack / @Sylviabohnenstengel do you have an opinion on whether we should be generally be using grid native coordinates, or real world coordinates?

daflack commented 4 months ago

l would generally suggest real world coordinates being easier for the user than grid native coordinates. One reason is how the grid native coordinates in regional models can behave near the meridian. A second is that it would save people having to go into their data to find the relevant co-ordinate system before being able to use CSET.