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Comparison of hydrological model structures based on recession and low flow simulations
Department of Geography, University of Zurich.
Institute of Hydrology Freiburg, Albert-Ludwigs University,.
Department of Geography, University of Zurich.
University Cooperation for Atmospheric Research, Boulder, Colorado.
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2011 (English)In: Hydrology and Earth System Sciences, ISSN 1027-5606, E-ISSN 1607-7938, Vol. 15, no 11, 3447-3459 p.Article in journal (Refereed) Published
Abstract [en]

Low flows are often poorly reproduced by commonly used hydrological models, which are traditionally designed to meet peak flow situations. Hence, there is a need to improve hydrological models for low flow prediction. This study assessed the impact of model structure on low flow simulations and recession behaviour using the Framework for Understanding Structural Errors (FUSE). FUSE identifies the set of subjective decisions made when building a hydrological model and provides multiple options for each modeling decision. Altogether 79 models were created and applied to simulate stream flows in the snow dominated headwater catchment Narsj√ł in Norway (119 km2). All models were calibrated using an automatic optimisation method. The results showed that simulations of summer low flows were poorer than simulations of winter low flows, reflecting the importance of different hydrological processes. The model structure influencing winter low flow simulations is the lower layer architecture, whereas various model structures were identified to influence model performance during summer.

Place, publisher, year, edition, pages
Copernicus Publications , 2011. Vol. 15, no 11, 3447-3459 p.
National Category
Oceanography, Hydrology, Water Resources
Research subject
URN: urn:nbn:se:uu:diva-164914DOI: 10.5194/hess-15-3447-2011OAI: oai:DiVA.org:uu-164914DiVA: diva2:470859
Available from: 2011-12-30 Created: 2011-12-30 Last updated: 2012-08-07Bibliographically approved

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Publisher's full texthttp://www.hydrol-earth-syst-sci.net/15/3447/2011/
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Hydrology and Earth System Sciences
Oceanography, Hydrology, Water Resources

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