pastas.stats.signatures.baseflow_stability#

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

Baseflow stability after Heudorfer et al. (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.