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(Article of periodic en Anglais - 2013)

Document title

Recalibrating aeolian sand transport models

Authors(s) and Affiliation(s)

SHERMAN D.J. (1) ; LI B. (2) ; ELLIS J.T. (3) ; FARRELL E.J. (4) ; MAIA L.P. (5) ; GRANJA H. (6) ;
(1) Dept. of Geography, Univ. of Alabama, Tuscaloosa, ETATS-UNIS
(2) Dept. of Geography, Trent Univ., Peterborough, CANADA
(3) Dept. of Geography and Marine Science Program, Univ. of South Carolina, Columbia, ETATS-UNIS
(4) Inst. of marine and Coastal Sciences, Rutgers Univ., New Brunswick, ETATS-UNIS
(5) Inst. de Ciéncias do Mar, Univ. Federal do Ceará, Fortaleza, BRESIL
(6) Dept. de Ciéncias da Terra, Univ. do Minho, Braga, PORTUGAL

Abstract

A quality-controlled data set comprising measurements of aeolian sand transport rates obtained at 3 disparate field sites is used to evaluate 6 commonly employed transport rate models (those of Bagnold, Kawamura, Zingg, Owen, Hsu, and Lettau and Lettau) and to recalibrate the empirical constants in those models. Shear velocity estimates were obtained using the von Kármán constant and an apparent von Kármán parameter. Models were recalibrated using non-linear regression and non-linear regression with least-squares lines forced through axes origins. Evaluation of the results suggests that the estimations of threshold shear velocity may be too slow, causing errors in predicted transport rates

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, no2 [pp. 169-178]

Bibliographic references : 2 p.

Collation : 5 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3310

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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