Document Detail


Meteorological instrumentation for infrasonic wind noise studies.
MedLine Citation:
PMID:  18189765     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Recent research on the prediction of wind noise contributions from the measured turbulent velocity spectrum has led to a better understanding of what meteorological variables are necessary to analyze and compare wind noise measurements on infrasound arrays. In this talk, we will describe the variables necessary to correlate different contributions to the pressure spectrum, depending on the sensor configuration and arrangement. The instrumentation necessary to study surface pressure fluctuations on wind screens, the intrinsic turbulence-turbulence pressure fluctuation, the mean shear-turbulence fluctuation pressure, and the surface pressure fluctuations above flat surfaces will be discussed. The case of elevated shears above vegetation layers is particularly important to infrasound arrays. A theoretical investigation has identified what meteorological parameters must be evaluated in order to compare theory to measurement. [Research supported by the U.S. Army TACOM-ARDEC at Picatinny Arsenal, NJ.].
Authors:
Richard Raspet; Jeremy Webster
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  122     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2008-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2984     Citation Subset:  IM    
Affiliation:
Natl. Ctr. for Physical Acoust. and Dept. of Phys. and Astron., Univ. of Mississippi, University, MS 38677.
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