pastas.stats.signatures.baseflow_stability#

baseflow_stability(series, normalize=True)[source]#

Baseflow stability after [heudorfer_2019].

Parameters

  • series (pandas.Series) – Pandas Series with DatetimeIndex and head values.

  • normalize (bool, optional) – normalize the time series to values between zero and one.

Return type

float

Notes

Originally developed for streamflow, here the Base Flow Index algorithm is analogously adapted to groundwater time series as a filter to separate the slow component (“baseflow”) of the time series. Then, the mean annual baseflow is calculated. Base Flow Stability is the difference of maximum and minimum annual baseflow.

References

heudorfer_2019

Heudorfer, B., Haaf, E., Stahl, K., & Barthel, R. (2019). Index‐based characterization and quantification of groundwater dynamics. Water Resources Research, 55, 5575–5592.