- q_gvg(series, tmin=None, tmax=None, by_year=True)[source]#
Gemiddeld Voorjaarsgrondwaterstand (GVG) also called MSGL (Mean Spring GW Level).
series (pandas.Series) – Series to calculate the GVG for.
tmin (pandas.Timestamp, optional) –
tmax (pandas.Timestamp, optional) –
by_year (bool, optional) – Take average over quantiles per year (default True)
- Return type:
Approximated by taking the median of the values in the period between 14 March and 15 April (after resampling to daily values). This function does not care about series length!