(Article of periodic en Anglais - 2012)

Document title

Spatial and scale-dependent controls on North American Pan-Arctic minimum river discharge

published at : The geographical analysis of water problems

Authors(s) and Affiliation(s)

RENNERMALM A.K. (1) ; BRING A. (2) ; MOTE T.L. (3) ;
(1) Dep. of Geography, State Univ. of New Jersey, Piscataway, ETATS-UNIS
(2) Dep. of Physical Geography and Quaternary Geology, Univ., Stockholm, SUEDE
(3) Dep. of Geography, Climatological Research Lab., Univ. of Georgia, Athens, ETATS-UNIS


Spatial patterns of minimum monthly river discharge in the North American Pan-Arctic and its potential controls are explored with geographically weighted regression (GWR). Minimum discharge is indicative of soil water conditions; therefore, understanding spatial variability of its controls may provide insights into patterns of hydrologic change. Here, GWR models are applied to determine a suitable combination of independent variables selected from a set of 8 variables. A model specification with annual mean river discharge, temperature at time of minimum discharge, and biome describes well the spatial patterns in minimum discharge. However, minimum discharge in larger watersheds is influenced more by temperature and biome distributions than it is in small basins, suggesting that scale is critical for understanding minimum river discharge


Thematical fascicle

published at : Geographical analysis / ISSN 0016-7363

Editor : Ohio State University Press, Columbus, OH - ETATS-UNIS (1969)

Millesime : 2012, vol. 44, no 3 [pp. 202-218]

Bibliographic references : 35 ref.

Collation : fig., tabl.



INIST-CNRS, Cote INIST : 17078

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1111/j.1538-4632.2012.00849.x

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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