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contributor authorCohn, Stephen A.
date accessioned2017-06-09T13:58:14Z
date available2017-06-09T13:58:14Z
date copyright1995/02/01
date issued1994
identifier issn0739-0572
identifier otherams-1009.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4145168
description abstractTwo independent radar methods for estimating the turbulent eddy dissipation rate ? are applied to a common dataset, and the results are compared. The first method estimates ? from backscattered power and relies on the effects of turbulent mixing of atmospheric refractive index gradients. It requires additional measurements of temperature and humidity from a balloon sounding. The second makes use of broadening of the backscattered Doppler spectrum by turbulent motions. The turbulent eddy dissipation rate ? is a measure of the energy cascade through scales of inertial subrange turbulence. Data were collected with the Millstone Hill UHF radar in Westford, Massachusetts, and with Cross-chain Loran Atmospheric Sounding System thermodynamic soundings launched from Hanscom Field about 25 km away. Encouraging similarities are found both in the magnitude and shape of the measured profiles, though differences are also found. Some differences may be explained by characteristics of the measurement techniques. The relative strengths and weaknesses of the methods, and limitations imposed by the radar, will be discussed.
publisherAmerican Meteorological Society
titleRadar Measurements of Turbulent Eddy Dissipation Rate in the Troposphere: A Comparison of Techniques
typeJournal Paper
journal volume12
journal issue1
journal titleJournal of Atmospheric and Oceanic Technology
identifier doi10.1175/1520-0426(1995)012<0085:RMOTED>2.0.CO;2
journal fristpage85
journal lastpage95
treeJournal of Atmospheric and Oceanic Technology:;1994:;volume( 012 ):;issue: 001
contenttypeFulltext


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