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- Reynolds, J. EduardoUppsala universitet,Luft-, vatten- och landskapslära,Ctr Nat Hazards & Disaster Sci CNDS, Uppsala, Sweden (author)
Definitions of climatological and discharge days : do they matter in hydrological modelling?
- Article/chapterEnglish2018
Publisher, publication year, extent ...
- 2018-03-27
- Informa UK Limited,2018
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:su-156765
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156765URI
- https://doi.org/10.1080/02626667.2018.1451646DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353191URI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- The performance of hydrological models is affected by uncertainty related to observed climatological and discharge data. Although the latter has been widely investigated, the effects on hydrological models from different starting times of the day have received little interest. In this study, observational data from one tropical basin were used to investigate the effects on a typical bucket-type hydrological model, the HBV, when the definitions of the climatological and discharge days are changed. An optimization procedure based on a genetic algorithm was used to assess the effects on model performance. Nash-Sutcliffe efficiencies varied considerably between day definitions, with the largest dependence on the climatological-day definition. The variation was likely caused by how storm water was assigned to one or two daily rainfall values depending on the definition of the climatological day. Hydrological models are unlikely to predict high flows accurately if rainfall intensities are reduced because of the day definition.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
- NATURVETENSKAP Geovetenskap och miljövetenskap Oceanografi, hydrologi och vattenresurser hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Oceanography, Hydrology and Water Resources hsv//eng
- climatological day
- discharge day
- rainfall-runoff model
- daily resolution
- regionalization
- floods
Added entries (persons, corporate bodies, meetings, titles ...)
- Halldin, SvenUppsala universitet,Luft-, vatten- och landskapslära,Ctr Nat Hazards & Disaster Sci CNDS, Uppsala, Sweden(Swepub:uu)svenhall (author)
- Seibert, JanUppsala universitet,Stockholms universitet,Institutionen för naturgeografi,Uppsala University, Sweden; University of Zurich, Switzerland,Luft-, vatten- och landskapslära,Stockholm Univ, Dept Phys Geog, Stockholm, Sweden;Univ Zurich, Dept Geog, Zurich, Switzerland(Swepub:uu)janseibe (author)
- Xu, Chong-YuUppsala universitet,Luft-, vatten- och landskapslära,Univ Oslo, Dept Geosci, Oslo, Norway(Swepub:uu)chongxu (author)
- Uppsala universitetLuft-, vatten- och landskapslära (creator_code:org_t)
Related titles
- In:Hydrological Sciences Journal: Informa UK Limited63:5, s. 836-8440262-66672150-3435
Internet link
- https://doi.org/10.1080/02626667.2018.1451646Fulltext
- https://www.tandfonline.com/doi/pdf/10.1080/02626667.2018.1451646?needAccess=true
- https://uu.diva-portal.org/smash/get/diva2:1216986/FULLTEXT01.pdffulltext:print
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-156765
- https://doi.org/10.1080/02626667.2018.1451646
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-353191
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