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Modelling the Effects of Global Change on Drinking Water Supply: The DeepWaterSupply Decision Model

Chapter in book
Authors Roland Barthel
Darla Nickel
Published in Regional Assessment of Global Change Impacts
Pages 221-227
ISBN 978-3-319-16750-3
Publisher Springer International Publishing
Publication year 2016
Published at Department of Earth Sciences
Pages 221-227
Language en
Keywords GLOWA-Danube, DANUBIA, Water supply, Upper Danube, Actor-based modelling, Decision modelling
Subject categories Climate Research, Hydrology, Water in nature and society, Geosciences, Multidisciplinary


The DeepWaterSupply model described in this chapter presents an extension of the preliminary base version of the WaterSupply model presented in Chap. 27. It is based on the DeepActor approach presented in Chap. 3. Whereas the preliminary model strategy (see Chap. 27) is based on a fixed assignment of extraction sites (supply) and communities (demand) to each water supply company (WSC) and on a fixed maximum withdrawal, the DeepWaterSupply extension allows a dynamic, context-specific adaptation of the infrastructure or a flexible use of resources. The Actors in this deep model are the water supply companies (WSC), who have the main goal to guarantee supply to all connected users. The WSC observe demand and supply. In case the demand exceeds the supply, the WSC takes actions, i.e. it chooses from predefined plans. Whether or not a plan is feasible and how it is performed depends on a variety of dynamic and static variables, including, for example, the status of the groundwater resources. This chapter describes the main components of the DeepWaterSupply model and the typical workflows of decision making. The most decisive factors influencing a WSCs decision to perform certain plans and actions are explained. Results are shown for different climatic and societal scenarios.

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