pastas.stats.sgi#
- sgi(series)[source]#
Method to compute the Standardized Groundwater Index Bloomfield and Marchant [2013].
- Parameters
series (pandas.Series or Pandas.DataFrame) –
- Returns
sgi_series – Pandas time series of the groundwater levels. Time series index should be a pandas DatetimeIndex.
- Return type
pandas.Series or Pandas.DataFrame
Notes
The Standardized Groundwater Index (SGI) is a non-parametric method to standardize groundwater levels. The SGI is calculated for each month separately. The SGI is a dimensionless index and is used to compare groundwater levels across different wells. It is generally recommended to resample the data to a monthly time series before computing the SGI.