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(Article of periodic en Anglais - 2013)

Document title

Large roughness element effects on sand transport, Oceano Dunes, California

Authors(s) and Affiliation(s)

GILLIES J.A. (1) ; LANCASTER N. (2) ;
(1) Division of Atmospheric Sciences, Desert research Inst., Reno, ETATS-UNIS
(2) Div. of Earth and Environmental Sciences, National Lab., Los Alamos, ETATS-UNIS

Abstract

The effect of large roughness elements on sand transport efficiency was evaluated on a coastal sand sheet by measuring sand flux with 2 types of sand traps [Big Spring Number Eight (BSNE) and the Cox Sand Catcher (CSC)] at 30 positions. The sediment transport measurements were made in the Oceano Dunes State Vehicular Recreation Area, Oceano, California, in support of a study to evaluate the effectiveness of emplaced roughness to control sand movement and dust emissions. Measurements of local winds and sand flux in the established roughnessarray were conducted from April 15 - May 4, 2011. It is highlighted that roughness element height is a critical parameter that enhances reduction in sand transport by wind for similar roughness density (λ) configurations. The available data suggest the form of the relationship between transport reduction efficiency and height is likely a power relationship with 2 limiting conditions

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no8 [pp. 785-792]

Bibliographic references : 25 ref.

Collation : 11 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3317

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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