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Using ensemble climate projections to assess probabilistic hydrological change in the Nordic region
SMHI, Forskningsavdelningen, Hydrologi.ORCID-id: 0000-0001-5331-9064
SMHI, Forskningsavdelningen, Klimatforskning - Rossby Centre.ORCID-id: 0000-0001-5701-5922
SMHI, Affärsverksamhet.
SMHI, Forskningsavdelningen, Hydrologi.
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2011 (Engelska)Ingår i: Natural hazards and earth system sciences, ISSN 1561-8633, E-ISSN 1684-9981, Vol. 11, nr 8, s. 2295-2306Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Assessing hydrological effects of global climate change at local scales is important for evaluating future hazards to society. However, applying climate model projections to local impact models can be difficult as outcomes can vary considerably between different climate models, and including results from many models is demanding. This study combines multiple climate model outputs with hydrological impact modelling through the use of response surfaces. Response surfaces represent the sensitivity of the impact model to incremental changes in climate variables and show probabilies for reaching a priori determined thresholds. Response surfaces were calculated using the HBV hydrological model for three basins in Sweden. An ensemble of future climate projections was then superimposed onto each response surface, producing a probability estimate for exceeding the threshold being evaluated. Site specific impacts thresholds were used where applicable. Probabilistic trends for future change in hazards or potential can be shown and evaluated. It is particularly useful for visualising the range of probable outcomes from climate models and can easily be updated with new results as they are made available.

Ort, förlag, år, upplaga, sidor
2011. Vol. 11, nr 8, s. 2295-2306
Nationell ämneskategori
Oceanografi, hydrologi och vattenresurser
Forskningsämne
Hydrologi
Identifikatorer
URN: urn:nbn:se:smhi:diva-539DOI: 10.5194/nhess-11-2295-2011ISI: 000294438700017OAI: oai:DiVA.org:smhi-539DiVA, id: diva2:805441
Tillgänglig från: 2015-04-15 Skapad: 2015-04-15 Senast uppdaterad: 2018-01-11Bibliografiskt granskad

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Wetterhall, FredrikGraham, PhilAndreasson, JohanRosberg, JörgenYang, Wei

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Wetterhall, FredrikGraham, PhilAndreasson, JohanRosberg, JörgenYang, Wei
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HydrologiKlimatforskning - Rossby CentreAffärsverksamhet
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Natural hazards and earth system sciences
Oceanografi, hydrologi och vattenresurser

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