pastas.stats.signatures.duration_curve_slope#

duration_curve_slope(series, l=0.1, u=0.9, normalize=True)[source]#

Slope of the duration curve between percentile l and u.

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

  • l (float) – lower percentile, a float between 0 and 1, lower than u

  • u (float, optional) – upper percentile, a float between 0 and 1, higher than l.

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

Return type

float

Notes

Slope of the duration curve (analogue flow duration curve for streamflow) between percentile l and u.

References

oudin_2010

Oudin, L., Kay, A., Andréassian, V., & Perrin, C. (2010). Are seemingly physically similar catchments truly hydrologically similar? Water Resources Research, 46, W11558.