Original scientific paper
https://doi.org/10.17794/rgn.2017.1.4
CROSS-CORRELATION MODELLING OF SURFACE WATER – GROUNDWATER INTERACTION USING THE EXCEL SPREADSHEET APPLICATION
Kristijan Posavec
orcid.org/0000-0002-5392-9329
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Pierottijeva 6, 10000 Zagreb, Associate Professor, PhD
Perica Vukojević
; Geotehnički studio Ltd. Zagreb, Nikole Pavića 11, 10090 Zagreb, Mag.Ing.Geol
Matija Ratkaj
; IHK Karlovac, Selce 25, 47000 Karlovac, Mag.Ing.Geol.
Tea Bedeniković
; University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Pierottijeva 6, 10000 Zagreb, Graduate student
Abstract
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, the cross-correlation analysis tool is 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 fi eld data from the Zagreb aquifer system and the Kopački rit Nature Park aquifer system are used to illustrate the usefulness of the cross-correlation application.
Keywords
cross-correlation; Excel spreadsheet application; surface water-groundwater interaction
Hrčak ID:
172691
URI
Publication date:
20.12.2016.
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