New recipe and diagnostic for calculating Lamb Weathertypes

[thomaskroi1996]

Hello everyone!

At the Wegener Center in Graz, Austria, we have been doing some research with Lamb Weathertypes for quite some while now, and recently started developing a diagnostic for ESMValTool to make things easier, and potentially be of use for others!

The features are:

Calculate the 27 Lamb Weathertypes over a region specified in the corresponding recipe
Plot means, anomalies as well as standard deviations for those weathertypes for psl, tas and prcp
Combining the weathertypes based on precipitation patterns over an area specified in the corresponding recipe as done here: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020JD032824 (Table 2)
Create the same plots for those combined weathertypes

The weathertypes are calculated for ERA5 and model data, and the precipitation data for correlation calculations are taken from ERA5 and E-OBS.

The branch we are working on is called weathertyping_wegc.

We are happy to discuss this project with the community, get some feedback and features you would like to see!

Thank you very much and with kind regards,

Thomas Kroißenbrunner and Martin Jury

[thomaskroi1996]

@valeriupredoi Hello! I recently tried to add our branch "weathertyping_wegc" to this issue, however it doesn't show up when i search for it under the "Development" tab. Do you have any ideas why this could be? Thank you so much!

[valeriupredoi]

Hi @thomaskroi1996 and many thanks for dropping by, and starting to work on devel 🍺 Since you are a member of our development group, you should be able to have branches straight off the main, and then open PRs from those, without the need to use forks, and forked PRs. And, indeed so - if you look at the branches listed on the main GH page, you'll see https://github.com/ESMValGroup/ESMValTool/tree/weathertyping_wegc is there and you can open a PR off it 👍

[thomaskroi1996]

@valeriupredoi Ah, I see! thank you very much for the quick reply!