engleski

Cross-correlation Modelling of Surface Water – Groundwater Interaction Using Excel Spreadsheet Application

Modelling responses of groundwater levels in aquifer systems, which occur as a reaction to changes in aquifer system boundary conditions such as river or stream stages, is commonly being studied using statistical methods, namely correlation, cross-correlation and regression methods. Although correlation and regression analysis tools are readily available in Microsoft Excel, a widely applied spreadsheet industry standard, cross-correlation analysis tool is though missing. As a part of research of groundwater pressure propagation into alluvial aquifer systems of the Sava and Drava/Danube river catchments following river stages rise, focused on estimating groundwater pressure travel times in aquifers, an Excel spreadsheet data analysis application for cross-correlation modelling has been designed and used in modelling surface water – groundwater interaction. Examples of field data from Zagreb aquifer system and Kopački rit Nature Park aquifer system are used to illustrate the usefulness of cross-correlation application.

cross-correlation; Excel spreadsheet application; surface water-groundwater interaction

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