Global cabration MWE bucket model LHF

[AlexisRenchon]

Write a minimal working example to calibrate latent heat flux (LHF) globally via bucket model.

• 6 free parameters: K_soil, rhoc_soil, W_f, f_bucket, p, z_0m (=z_0b)
• each parameter is constant globally
• we calibrate on ~100 columns (single sites), to get the best parameter ensembles
• we use default configuration (e.g., default loss function)
• we use ERA5 data, monthly time resolution, 1 year period
• we use EnsembleKalmanProcesses.jl (EKP), we use EKP Observations object
• simulation write ClimaDiagnostics netcdf files, we use EKP methods to stack columns

PR: #835