The atmospheric instabiility perturbation scheme implemented in the Local DA.

The code of MPV perturbations and the corresponding scripts for ensemble forecasts.

The code of MPV perturbation are located in src/gen_ens/, the executable files are dyn_diag_main.exe for creating mpv observations and gen_ens_dyn_diag.exe for adding mpv perturbation. 

Numerical Estimation of derivatives are in src/numeric_h, create_pert_files.exe for small perturbations X, numerical.exe for numerical Estimation.

Only used for my paper submitted to GMD.