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Process-based karst modelling to relate hydrodynamic and hydrochemical characteristics to system properties

Hartmann, A.; Weiler, M.; Wagener, T.; Lange, J.; Kralik, M.; Humer, F.; Mizyed, N.; Rimmer, A.; Barberá, J. A.; Andreo, B.; Butscher, C. 1; Huggenberger, P.
1 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)

Abstract:

More than 30% of Europe’s land surface is made up of karst exposures. In some countries, water from karst aquifers constitutes almost half of the drinking water supply. Hydrological simulation models can predict the largescale impact of future environmental change on hydrological variables. However, the information needed to obtain model parameters is not available everywhere and regionalization methods have to be applied. The responsive behaviour of hydrological systems can be quantified by individual metrics, so-called system signatures. This study explores their value for distinguishing the dominant processes and properties of five different karst systems in Europe and the Middle East. By defining ten system signatures derived from hydrodynamic and hydrochemical observations, a processbased karst model is applied to the five karst systems. In a stepwise model evaluation strategy, optimum parameters and their sensitivity are identified using automatic calibration and global variance-based sensitivity analysis. System signatures and sensitive parameters serve as proxies for dominant processes, and optimised parameters are used to determine system properties. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000037467
Originalveröffentlichung
DOI: 10.5194/hess-17-3305-2013
Scopus
Zitationen: 59
Web of Science
Zitationen: 55
Dimensions
Zitationen: 69
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2013
Sprache Englisch
Identifikator ISSN: 1027-5606, 1607-7938
urn:nbn:de:swb:90-374676
KITopen-ID: 1000037467
Erschienen in Hydrology and earth system sciences
Verlag Copernicus Publications
Band 17
Seiten 3305-3321
Nachgewiesen in Dimensions
Web of Science
Scopus
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