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(Article of periodic en Anglais - 2014)

Document title

A new expression describing the migration of aeolian dunes

Authors(s) and Affiliation(s)

BO T.-L. (1 2) ; ZHENG X.-J. (1 2 3) ;
(1) Key Lab. of mechanics on Western Disaster and Environment, Univ., Lanzhou, CHINE
(2) Dept. of Mechanics, Univ., Lanzhou, CHINE
(3) School of Electronic and Mechanical Engineering, Xidian Univ., Xi'an, CHINE

Abstract

Based on quantitative simulations on the formation and evolution of aeolian dune fields, a semi-analytical equation describing the migration of aeolian sand dunes with respect to dune height, annual wind regime, frictional wind speed, and sand grain diameter is proposed in this paper through analyzing the migration speeds of aeolian sand dunes with different heights in a dune field. The migration speeds of aeolian sand dunes on Earth predicted by the equation is consistent with field observations, and it can be applied to describe the migration of underwater sand dunes and aeolian snow dunes on Earth, as well as that of aeolian sand dunes on other planets, for example Martian sand dunes. In addition, the A-W (annual wind regime-wind speed) method proposed by this paper can also be used to determine the annual wind regime and wind speed in dune fields for given dune speed and sand diameter

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2014, no118 [pp. 1-8]

Bibliographic references : 34 ref.

Collation : 9 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2014.01.018

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28682071 : Permanent link - XML version
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