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Defining dry/wet sp...
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Bärring, LarsLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
(author)
Defining dry/wet spells for point observations, observed area averages, and regional climate model gridboxes in Europe
- Article/chapterEnglish2006
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LIBRIS-ID:oai:lup.lub.lu.se:9b9e1419-1052-45a7-833d-2980a1d50a4e
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https://lup.lub.lu.se/record/395286URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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A new method for optimising threshold values of dry/wet spells is evaluated. A set of indices is used to find the best threshold giving good correspondence between the frequency of dry/wet spells in Hadley Centre regional model (HadRM3) output, reference observations with predetermined thresholds, and area-averaged observations. The analyses focus on selected model gridboxes in 3 different European climate regimes (Sweden, UK, Italy), where station data are available from several locations. In addition, a pan-European analysis using the European Climate Assessment (ECA) dataset is carried out. Generally, there is good agreement between point observations and the corresponding area average using the common thresholds of 0.1 or 1.0 mm with observational data. Applying the optimal thresholds on the model output is important, as it typically results in substantially better agreement between the simulated and observed series of dry/wet days. The fitted optimal pan-European dry/wet threshold is (1) 0.47 or 0.15 mm, depending on model version, for the observed point data threshold of 0.1 mm, and (2) 1.2 or 0.56 mm, depending on model version, for the threshold of 1.0 mm.
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Holt, Tom
(author)
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Linderson, Maj-LenaLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)ngeo-mll
(author)
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Radziejewski, Madej
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Moriondo, Marco
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Palutikof, Jean P.
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Institutionen för naturgeografi och ekosystemvetenskapNaturvetenskapliga fakulteten
(creator_code:org_t)
Related titles
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In:Climate Research31:1, s. 35-491616-1572
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