Comparison of wind speed and turbulence measurements made by a hot-film probe and a bivane in the atmospheric surface layer

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Two independent systems for determining wind speed and turbulence levels are being used in an on-shore diffusion study on Long Island near Brookhaven National Laboratory. Results obtained from the two instrument systems are compared to illustrate the differences in the measured values of the vector wind, mean wind speed, variance, turbulence level and energy spectra. Details of the physical characteristics and relative advantages of a commercial Vector Vane and a three-dimensional hot-film sensor are also presented. Measurements of the mean wind speed and the turbulence level compared well. The Vector Vane underestimated spectral densities for frequencies above 1 hertz. (auth)

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Pages: 13

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SethuRaman, S. & Brown, R.M. April 30, 1974.

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Description

Two independent systems for determining wind speed and turbulence levels are being used in an on-shore diffusion study on Long Island near Brookhaven National Laboratory. Results obtained from the two instrument systems are compared to illustrate the differences in the measured values of the vector wind, mean wind speed, variance, turbulence level and energy spectra. Details of the physical characteristics and relative advantages of a commercial Vector Vane and a three-dimensional hot-film sensor are also presented. Measurements of the mean wind speed and the turbulence level compared well. The Vector Vane underestimated spectral densities for frequencies above 1 hertz. (auth)

Physical Description

Pages: 13

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Dep. NTIS

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  • American Chemical Society 2nd joint conference on sensing of environmental pollutants, Washington, District of Columbia, USA, 10 Dec 1973

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  • Report No.: BNL--18431
  • Report No.: CONF-731205--4
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 4350716
  • Archival Resource Key: ark:/67531/metadc1023138

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Office of Scientific & Technical Information Technical Reports

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  • April 30, 1974

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 25, 2017, 7:08 p.m.

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SethuRaman, S. & Brown, R.M. Comparison of wind speed and turbulence measurements made by a hot-film probe and a bivane in the atmospheric surface layer, article, April 30, 1974; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1023138/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.