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(Article of periodic en Anglais - 2009)

Document title

Promise, performance and current limitations of a magnetic Bedload Movement Detector

Authors(s) and Affiliation(s)

HASSAN M.A. (1) ; CHURCH M. (1) ; REMPEL J. (1 2) ; ENKIN R.J. (3) ;
(1) Dep. of Geography, Univ. of British Columbia, Vancouver, CANADA
(2) Rescan Environmental Services, British Columbia, Vancouver, CANADA
(3) Geological Survey of Canada, Pacific, British Columbia, Sidney, CANADA

Abstract

The AA. conducted two types of laboratory experiments to attempt to calibrate the Bedload Movement Detector (BMD) system: (1) rotating platter experiments were designed to relate sensor response curves to particle properties, and (2) flume experiments were designed to measure particle speed and permit computation of a calibrated model. Physically based relations were derived amongst particle volume, speed and magnetic content, and signal integral, amplitude and width. The calibrated relations demonstrate a basis to estimate sediment flux in gravel-bed rivers, but they require independent knowledge of particle magnetic susceptibility. Results and discussion about the weaknesses in the sensor design and performance in both the field and laboratory

Source

Article of periodic

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

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

Millesime : 2009, vol. 34, no7 [pp. 1022-1032]

Bibliographic references : 19 ref.

Collation : 14 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1797

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