Calculating the connection between precipitation and shallow groundwater

Ilyés, Csaba and Tóth, Márton and Szűcs, Péter (2023) Calculating the connection between precipitation and shallow groundwater. MULTIDISZCIPLINÁRIS TUDOMÁNYOK: A MISKOLCI EGYETEM KÖZLEMÉNYE, 13 (3). pp. 292-299. ISSN 2062-9737

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Abstract

From a water management point of view, it is particularly important to be able to examine the temporality of the precipitation that replenishes the shallow or even deeper groundwater layers. In our study, we use a method that allows us to analyze the evolution of both the precipitation and groundwater levels together. With cross-correlation and cross-spectral analyses, we can quantify the relationship between the two hydrological parameters for a given sample area, and the periods found in the relationship can also be detected. During our calculations, we were able to determine such delay times for a sample area in Debrecen using monthly and daily data series, so an 8-10 month and a shorter 3-4 day linear relationship between precipitation and groundwater was detected. Based on our results, several periodic components can also be found in this elation.

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