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Changes to the Quantitative Status of Groundwater and the Water Supply

Chapter in book
Authors Roland Barthel
Ralf Ziller
Anita Leinberger
Thomas Hörhan
Published in Regional Assessment of Global Change Impacts
Pages 561-567
ISBN 978-3-319-16750-3
Publisher Springer International Publishing
Publication year 2016
Published at Department of Earth Sciences
Pages 561-567
Language en
Links dx.doi.org/10.1007/978-3-319-16751-...
Keywords GLOWA-Danube, DANUBIA, Groundwater, Water supply, Quantitative status, Qualitative status
Subject categories Climate Research, Oceanography, Hydrology, Water Resources, Geosciences, Multidisciplinary

Abstract

Global change will change the quantity and quality of groundwater resources and subsequently the prerequisites for the supply of safe drinking water. Quite often, attempts are made to simply express the status of groundwater resources by stating changes in groundwater level or concentrations. However, such results require further interpretation by experts before they can be used in decision making. This chapter presents the approach chosen in GLOWA-Danube to translate the results of model simulations of groundwater head, groundwater recharge and river discharge into an index that expresses the status of groundwater resources in one single value. This index, called a “flag”, is used by the socioeconomic Actor models in DANUBIA as a basis for decision making. Here we describe the principle approach to generating flags from model results and how they are used in the decision process. Maps showing the results of flag calculations are shown for different climatic and societal scenarios.

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