pastas.stats.signatures.fall_rate#

fall_rate(series, normalize=False)[source]#

Mean negative head changes from one day to the next.

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

Mean rate of negative changes in head from one day to the next, according to [richter_1996].

References

richter_1996

Richter, B. D. (1996). A method for assessing hydrologic alteration within ecosystems. Society for Conservation Biology, 10(4), 1163–1174. https://doi.org/10.1046/j.1523‐1739.1996.10041163.x