Infrastrukturen (Energie- und Wasserversorgung)

Groth, Markus; Rose, Julia

doi:10.1007/978-3-662-55379-4_9

Cited by 1 publication

(1 citation statement)

References 20 publications

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“…Continental Europe lies in between these two extremes and must expect an increase in winter precipitation, a decrease in summer precipitation as well as an increase in heat extremes. Coherently, the anticipated impacts of climate change in Germany for the period 2020 to 2050 include drier and hotter summers, as well as a seasonal increase in water demand and daily demand peaks [7][8][9][10][11][12][13]. Since the vast majority of water demand in Germany is covered by groundwater, a seasonal increase in water demand could force additional groundwater abstractions and inflict elevated stress on heavily exploited groundwater bodies in summer periods [14,15].…”

Section: Introductionmentioning

confidence: 99%

GIS-AHP Ensembles for Multi-Actor Multi-Criteria Site Selection Processes: Application to Groundwater Management under Climate Change

Scheihing¹,

Kübeck

Sütering³

2022

Water

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A possible adaptation pathway for water suppliers in Germany who face a climatically driven increase in water stress is the development of aquifers which are not used at their full potential. However, identifying suitable sites for aquifer development can go along with severe conflict potential due to the great variety of stakeholders who are involved in the decision-making process. We approach this multi-actor and multi-criteria decision-making problem by developing a geoinformation system-based analytic hierarchy process ensemble (GIS-AHP ensemble). As opposed to the classic GIS-AHP method that yields ratings of site suitability based on a single expert evaluation, the here proposed new GIS-AHP ensemble method respects multiple expert evaluations and allows for quantifying the robustness of yielded site ratings in multi-actor contexts, which helps to mitigate conflict potential. The respectively derived GIS-AHP ensemble site ratings for northwest Germany are successfully checked for plausibility in the framework of the study by using long-established groundwater abstraction areas as indicators for good site conditions. The GIS-AHP ensemble site ratings are further tested regarding their usability for long-term water supply planning by integrating a groundwater recharge scenario under climate change for the period 2020 to 2050. The proposed GIS-AHP ensemble methodology proves useful in the given case study for fostering integrated environmental decision-making and exhibits a high transferability to other, thematically differing site selection problems.

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