(Article of periodic en Anglais - 2009)

Document title

Preliminary study of the interference of surface objects and rainfall in overland flow resistance

Authors(s) and Affiliation(s)

LI G. (1) ;
(1) Dep. of Geography and Environmental Studies, California State Univ., Hayward, ETATS-UNIS


This study examines the validity of linear superposition approach when rainfall and surface roughness are considered in overland flow resistance. To examine a possible interference in flow resistance, a set of flume experiments using surface objects and rainfall as roughness elements were conducted. Since the flow resistance due to each element cannot be measured directly, the linear superposition equation had to be rewritten using friction factor increment as variable. The result shows that the interference between rainfall and surface roughness is significant and the composite resistance does not statistically equal to the sum of individual resistance. The linear superposition approach is hence invalid in the case of rainfall and surface elements in overland flow resistance


Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2009, vol. 78, no2 [pp. 154-158]

Bibliographic references : 24 ref.

Collation : 2 fig., 4 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2009.03.010

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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