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ACCESS-Community-Hub / LWG-Workshop-Day2-Scripts

A repository containing scripts created and curated during the 2024 Land Working Group Workshop
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What land-sea mask do we use? #7

Open ccarouge opened 1 week ago

ccarouge commented 1 week ago

CABLE takes the assumption the met. forcing defines the grid and the land-sea mask. This means the simulation runs exactly on the grid of the met. forcing and this forcing needs no interpolation/filling etc. operation.

JULES takes a different approach where the land-sea mask comes from a separate file or the land cover.

Which approach do we want to adopt? It seems avoiding regridding the met forcing before simulation is better but we need to decide.

matlipson commented 4 days ago

I agree it will be better to avoid regridding met-forcing and adapting new ancils to match. We can use tools such as ants.analysis.make_consistent_with_lsm() to a) remove land data outside met forcing region, b) fill missing land points (ants.analysis.FillMissingPoints) using a "spiral-search" nearest neighbour approach.