inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Shifting discharge peaks in Arctic rivers, 1977-2007

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

Auteur(s) et Affiliation(s)

OVEREEM, I.
Community Surface Dynamics Modeling System (CSDMS), Inst. of Arctic and Alpine Research, Univ. of Colorado, Boulder, Etats-Unis
SYVITSKI, J.P.M.
Community Surface Dynamics Modeling System (CSDMS), Inst. of Arctic and Alpine Research, Univ. of Colorado, Boulder, Etats-Unis
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 :
Here, the most recent observational records are analyzed for 19 large rivers encompassing the entire Arctic region over the period 1977 to 2007. Trends in total annual water discharge, melt month and peak month discharge are calculated for individual systems based on records with monthly time resolution. An increase in annual discharge over the entire region is observed over the last 30 years. Melt month discharge increases considerably, whereas peak month discharge is reduced. The AA. attribute the considerable change in the melt month to a shift in snowmelt in the drainage basin.


Type de document :
Article de monographie

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2010, vol. 92, n°. 2, p. 285-296, nombre de pages : 12, Références bibliographiques : 36 ref.

Date :
2010

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

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)