pywrdrb.post.metrics.get_ensemble_hashimoto_metrics

pywrdrb.post.metrics.get_ensemble_hashimoto_metrics#

pywrdrb.post.metrics.get_ensemble_hashimoto_metrics(major_flows, mrf_targets, model, node, lower_basin_mrf_contributions=None)#

Calculate ensemble reliability and vulnerability metrics.

Uses the Hashimoto (1982) definitions of reliability and vulnerability for streamflow time series compared to MRF targets. Special handling is added for delTrenton.

Parameters:

  • major_flows (dict) – Dictionary of simulated flows for each model and realization.

  • mrf_targets (dict) – Dictionary of MRF targets for each model and realization.

  • model (str) – Model key to evaluate.

  • node (str) – Node name for which metrics are calculated.

  • lower_basin_mrf_contributions (dict, optional) – Dictionary of additional flow contributions (e.g., Blue Marsh).

Returns:

  • reliability (np.ndarray) – Array of reliability values for each realization.

  • vulnerability (np.ndarray) – Array of vulnerability values for each realization.

Notes

Required for validation of reliability objectives at key regulatory nodes.