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Climate change impacts on runoff in Sweden - assessments by global climate models, dynamical downscaling and hydrological modelling
SMHI, Research Department, Hydrology.
SMHI, Research Department, Hydrology.
SMHI, Professional Services.
SMHI, Research Department, Hydrology.
Show others and affiliations
2001 (English)In: Climate Research (CR), ISSN 0936-577X, E-ISSN 1616-1572, Vol. 16, no 2, 101-112 p.Article in journal (Refereed) Published
Abstract [en]

The Swedish regional climate modelling programme, SWECLIM, started in 1997 with the main goal being to produce regional climate change scenarios over the Nordic area on a time scale of 50 to 100 yr. An additional goal is to produce water resources scenarios with a focus on hydropower production, dam safety, water supply and environmental aspects of water resources. The scenarios are produced by a combination of global climate models (GCMs), regional climate models and hydrological runoff models. The GCM simulations used thus far are 10 yr time slices from 2 different GCMs, UKMO HadCM2 from the Hadley Centre and the ECHAM4/OPYC3 of the Max Planck Institute for Meteorology. The regional climate model is a modified version of the international HIRLAM forecast model and the hydrological model is the HBV model developed at the Swedish Meteorological and Hydrological Institute. Scenarios of river runoff have been simulated for 6 selected basins covering the major climate regions in Sweden. Changes in runoff totals, runoff regimes and extreme values have been analysed with a focus on the uncertainties introduced by the choice of GCM and routines for estimation of evapotranspiration in the hydrological model. It is further shown how these choices affect the statistical return periods of future extremes in a design situation.

Place, publisher, year, edition, pages
2001. Vol. 16, no 2, 101-112 p.
Keyword [en]
climate change impact, water resources, regional climate model, scenario, hydrological model, HBV, evapotranspiration, SWECLIM
National Category
Climate Research Oceanography, Hydrology, Water Resources
Research subject
Climate; Hydrology
Identifiers
URN: urn:nbn:se:smhi:diva-1484DOI: 10.3354/cr016101ISI: 000166806500002OAI: oai:DiVA.org:smhi-1484DiVA: diva2:848708
Available from: 2015-08-26 Created: 2015-08-17 Last updated: 2016-01-27Bibliographically approved

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Gardelin, MarieLindström, GöranRummukainen, Markku
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Citation style
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