pysteps.blending.skill_scores.spatial_correlation#
- pysteps.blending.skill_scores.spatial_correlation(obs, mod, domain_mask)#
Determine the spatial correlation between the cascade of the latest available observed (radar) rainfall field and a time-synchronous cascade derived from a model (generally NWP) field. Both fields are assumed to use the same grid.
- Parameters:
obs (array-like) – Array of shape [cascade_level, y, x] with per cascade_level the normalized cascade of the observed (radar) rainfall field.
mod (array-like) – Array of shape [cascade_level, y, x] with per cascade_level the normalized cascade of the model field.
domain_mask (array-like) – Boolean array of shape [y, x] indicating which cells fall outside the radar domain.
- Returns:
rho – Array of shape [n_cascade_levels] containing per cascade_level the correlation between the normalized cascade of the observed (radar) rainfall field and the normalized cascade of the model field.
- Return type:
array-like
References