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Synthesizing changes in low flows from observations and models across scales

Stahl, Kerstin; Vidal, Jean-Philippe; Hannaford, Jamie; Prudhomme, Christel; Laaha, Gregor; Tallaksen, Lena M.. 2014 Synthesizing changes in low flows from observations and models across scales. In: Daniell, Trevor M., (ed.) Hydrology in a changing world: environmental and human dimensions. Wallingford, UK, International Association of Hydrological Sciences, 30-35. (IAHS Publication, 363).

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Abstract/Summary

This contribution presents a comparison of the observed and projected low flow trends and changes for the European domain (as derived from homogenized large-scale datasets and model applications) with the mosaic of results obtained from pan-European and national-scale studies. The large-scale datasets include the streamflow records held in the European Water Archive and the WATCH large-scale model ensemble. National studies are available from Norway, the UK, southern Germany, Austria and France. The comparison shows that large-scale model experiments focus mostly on the general pattern of seasonal flow changes, whereas national to regional scale studies tend to focus on absolute low flow values and deficits below relevant thresholds and often stratify their assessments by hydrological regime or dominant process control. The study concludes that different levels of information can indeed benefit synthesis assessments of low flow changes at the hydrological planning scale.

Item Type: Publication - Book Section
CEH Sections: Rees (from October 2014
ISBN: 9781907161414
Additional Keywords: low flow, Europe, climate change, trend analysis, scenarios
NORA Subject Terms: Hydrology
Meteorology and Climatology
Related URLs:
Date made live: 23 Oct 2014 11:55 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/508630

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