earthkit.meteo.score.array.crps_from_ensemble

earthkit.meteo.score.array.crps_from_ensemble(x, y, nan_policy='propagate')

Compute Continuous Ranked Probability Score (CRPS).

Parameters:

  • x (array-like (n_ens, n_points)) – Ensemble forecast

  • y (array-like (n_points)) – Observation/analysis

  • nan_policy (str) – Determines how to handle nans. Options are ‘raise’, ‘propagate’, or ‘omit’.

Returns:

CRPS values

Return type:

array-like (n_points)

The method is described in [Hersbach2000].