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Verlagsausgabe
DOI: 10.5445/IR/1000085153
Veröffentlicht am 09.08.2018

Dynamics of water fluxes and storages in an Alpine karst catchment under current and potential future climate conditions

Chen, Zhao; Hartmann, Andreas; Wagener, Thorsten; Goldscheider, Nico

Abstract:
Karst aquifers are difficult to manage due to their unique hydrogeological characteristics. Future climate projections suggest a strong change in temperature and precipitation regimes in European karst regions over the next decades. Alpine karst systems can be especially vulnerable under changing hydro-meteorological conditions since snowmelt in mountainous environments is an important controlling process for aquifer recharge and is highly sensitive to varying climatic conditions. Our paper presents the first study to investigate potential impacts of climate change on mountainous karst systems by using a combined lumped and distributed modeling approach with consideration of subsurface karst drainage structures. The study site is characterized by high-permeability (karstified) limestone formations and low-permeability (non-karst) sedimentary Flysch. The model simulation under current conditions demonstrates that a large proportion of precipitation infiltrates into the karst aquifer as autogenic recharge. Moreover, the result shows that surface snow storage is dominant from November to April, while subsurface water storage in the kar ... mehr


Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1607-7938
URN: urn:nbn:de:swb:90-851530
KITopen ID: 1000085153
Erschienen in Hydrology and earth system sciences
Band 22
Heft 7
Seiten 3807–3823
Vorab online veröffentlicht am 18.07.2018
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