A New Turbulence Microbarometer and Its Evaluation Using the Budget of Horizontal Heat Flux

A New Turbulence Microbarometer and Its Evaluation Using the Budget of Horizontal Heat Flux

The construction, calibration, and application of a microbarometer that is capable of accurately measuring turbulence pressure fluctuations is described. The microbarometer consists of a quad-disk pressure probe and a highly sensitive high-pass pressure sensor. The accuracy of the instrument is test...

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Veröffentlicht in:Journal of atmospheric and oceanic technology 2004-08, Vol.21 (8), p.1170-1181
Hauptverfasser: Wilczak, J M, Bedard, A J
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container_title Journal of atmospheric and oceanic technology
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creator Wilczak, J M
Bedard, A J
description The construction, calibration, and application of a microbarometer that is capable of accurately measuring turbulence pressure fluctuations is described. The microbarometer consists of a quad-disk pressure probe and a highly sensitive high-pass pressure sensor. The accuracy of the instrument is tested by evaluating the budget of streamwise horizontal heat flux in the atmospheric surface layer. In this budget, shear and stratification production balance a pressure covariance term and a small turbulent transport term. The measured pressure covariance term is found to close the heat flux budget to within approximately 15%.
doi_str_mv 10.1175/1520-0426(2004)021(1170:ANTMAI)2.0.CO;2
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source American Meteorological Society; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
title A New Turbulence Microbarometer and Its Evaluation Using the Budget of Horizontal Heat Flux
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