On fractal nature of groundwater level fluctuations due to rainfall process
2016
Joelson, Maminirina | Golder, Jacques | Beltrame, Philippe | Neel, Marie-Christine | Di Pietro, Liliana
Hourly resolution time series of groundwater level fluctuations are analyzed after removing the seasonal cycle. It is found that fluctuations of groundwater levels have fractal scaling and a persistent behavior. We show also that groundwater level fluctuations exhibit non-Gaussian heavy tailed probability distribution that is well fitted by the Levy stable distribution. Implications of the present results on the groundwater system modeling as a fractional Levy motion and the connection with the anomalous diffusion inside the soil are discussed
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