(Article of periodic en Anglais - 2010)

Document title

Coarse bed material patch evolution in low-order, ephemeral channels

Authors(s) and Affiliation(s)

YUILL B. (1) ; NICHOLS M. (2) ; YAGER E. (3) ;
(1) Pontchartrain Inst. for Environmental Science, Univ., New Orleans, ETATS-UNIS
(3) Dep. of Civil Engineering, Center for Ecohydraulics Resaerch, Univ. of Idaho, Boise, ETATS-UNIS


This paper documents the evolution of coarse bed material in Lucky Hills, a low-ordered, ephemeral watershed in southeast Arizona. The bed material is arranged in discrete patches that are differentiated from one another by their grain-size distributions. Measurements of patch size (patch surface area) and composition (GSD) are recorded for a sample of coarse material patches throughout the study period, 2005-2006. The variability of patch size and GSD through time is used as a gauge of patch stability. These measures of patch stability are then correlated to values of predicted grain mobility. Results indicate that relative stability varies from patch to patch, influenced by the balance of patch grains transported out of the patch and the deposition of new grains into the patch


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2010, vol. 81, no2 [pp. 126-136]

Bibliographic references : 1 p.

Collation : 11 fig., 3 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.02.002

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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