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(Article of periodic en Anglais - 1996)

Document title

Using spectral analysis to detect sensor noise and correct turbulence intensity and shear stress estimates from EMCM flow records

Authors(s) and Affiliation(s)

LAPOINTE M.F. ; DE SERRES B. ; BIRON P. ; ROY A.G. ;

Abstract

This paper demonstrates the usefulness of spectral analysis to detect and characterize narrow-band noise components in turbulent flow records. Statistical principles underlying the use of spectral analysis for noise detection are briefly reviewed. Examples of u and v velocity spectra and cospectra are then presented from actual EMCM velocity records from flume and field deployments that were found to be contaminated by such noises. The sensivity of the shear stress estimates to even minor noise levels is demonstrated

Source

Article of periodic

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

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

Millesime : 1996, vol. 21, no2 [pp. 195-203]

Bibliographic references : 21 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1996.
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