Impact of climate change on future discharges and flow characteristics of the Tana River, Sub-Arctic northern Fennoscandia

Special issue. Sedimentary fluxes and budgets in changing cold environments : quantitative analysis and scaling issues

Auteur(s) et Affiliation(s)

LOTSARI, E.

Dep. of Geography, Univ., Turku, Finlande

VEIJALAINEN, N.

Finnish Environment Inst., Mechelininkatu, Helsinki, Finlande

ALHO, P.

Dep. of Geography, Univ., Turku, Finlande

KÄYHKÖ, J.

Dep. of Geography, Univ., Turku, Finlande

BEYLICH, A.A.

Geological survey of Norway (NGU), Quaternary Geology and Climate Group, NO-7491, Trondheim, Norvege

Dep. of Geography, Norwegian Univ. of Science and Technology (NTNU), Trondheim, Norvege

LAMOUREUX, S.F.

Dep. of Geography, Queen's Univ., Ontario, Kingston, Canada

Description :
The aims of this paper are to simulate the effects of climate change on 1) future floods and 2) spatial variability of velocity, bed shear stress and stream power per unit area at the lower reach of the Tana River, Norway. Future discharge scenarios spanning the years 2070 to 2099 are modelled with a conceptual hydrological model incorporating three emissions scenarios, with two global and one regional climate model. These simulated flood discharges were used as input hydrographs to model flow characteristics with a two-dimensional hydraulic model. Differences in the spatial distribution of flow characteristics between frequent and infrequent floods were examined. Results are compared to the present-day situation and discussed.

Type de document :
Article de monographie

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2010, vol. 92, n°. 2, p. 263-284, nombre de pages : 22, Références bibliographiques : 2 p.

Date :
2010

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi

Langue :
Anglais