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Recent trends of groundwater temperatures in Austria

Benz, Susanne A.; Bayer, Peter; Winkler, Gerfried; Blum, Philipp

Abstract:
Climate change is one of if not the most pressing challenge modern society faces. Increasing temperatures are observed all over the planet and the impact of climate change on the hydrogeological cycle has long been shown. However, so far we have insufficient knowledge on the influence of atmospheric warming on shallow groundwater temperatures. While some studies analyse the implication climate change has for selected wells, large-scale studies are so far lacking. Here we focus on the combined impact of climate change in the atmosphere and local hydrogeological conditions on groundwater temperatures in 227 wells in Austria, which have in part been observed since 1964. A linear analysis finds a temperature change of +0.7±0.8K in the years from 1994 to 2013. In the same timeframe surface air temperatures in Austria increased by 0.5±0.3K, displaying a much smaller variety. However, most of the extreme changes in groundwater temperatures can be linked to local hydrogeological conditions. Correlation between groundwater temperatures and nearby surface air temperatures was additionally analysed. They vary greatly, with correlation coefficients of −0.3 in central Linz to 0.8 outside of Graz. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000083654
Veröffentlicht am 20.06.2018
Originalveröffentlichung
DOI: 10.5194/hess-22-3143-2018
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Coverbild
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1607-7938
urn:nbn:de:swb:90-836545
KITopen-ID: 1000083654
HGF-Programm 35.14.01 (POF III, LK 01)
Erschienen in Hydrology and earth system sciences
Band 22
Heft 6
Seiten 3143–3154
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 06.06.2018
Nachgewiesen in Web of Science
Scopus
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