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Acoustic Travel-Time Tomography of the Atmospheric Surface Layer

[+] Author Affiliations
Vladimir E. Ostashev, Alfred J. Bedard

NOAA/Earth System Research Laboratory, Boulder, CO

Sergey N. Vecherin, D. Keith Wilson

U.S. Army Engineer Research and Development Center, Hanover, NH

Paper No. IMECE2009-12478, pp. 299-303; 5 pages
doi:10.1115/IMECE2009-12478
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 15: Sound, Vibration and Design
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4388-8 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

Acoustic travel-time tomography of the atmospheric surface layer (ASL) is based on measurements of travel time of sound impulse propagation between different pairs of sources (speakers) and receivers (microphones), which constitute the tomography array. Then, the temperature and wind velocity fields inside the tomography array are reconstructed with inverse algorithms. Improved knowledge about these fields is important in many applications: validation and input data for atmospheric models, studies of turbulence over complex topography and heterogeneous surfaces, input data for wave propagation models, etc.

Copyright © 2009 by ASME
Topics: Acoustics

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