Atmospheric acoustic interferometer tomography of temperature and winds

Bradley, SG; von Hünerbein, S; Haddad, A

Abstract

A technique is described for multiple-path propagation time measurements in the surface layer of the atmosphere. This is based on solving simple bi-directional ray tracing equations on successively higher penetrating paths using propagation times for a short acoustic pulse. Full refractive effects are included for the multi-layer system. The scattering
process from turbulence is shown to be capable of providing signals from which phase comparisons can be made and time-of-flight deduced. Simulations demonstrate that the
method has potential for deriving continuous temperature and wind profiles. In practice a multiple-beam interferometer can be used at each end of the path. Such an instrument has
been designed and is described, together with future planned enhancements.

Citation

Bradley, S., von Hünerbein, S., & Haddad, A. (2005). Atmospheric acoustic interferometer tomography of temperature and winds. Acta acustica united with Acustica, 91(6), 1025-1030

• Journal Article Type: Article
• Acceptance Date: Sep 5, 2005
• Publication Date: Nov 1, 2005
• Deposit Date: Aug 19, 2010
• Journal: Acta Acustica united with Acustica
• Print ISSN: 1610-1928
• Electronic ISSN: 1861-9959
• Publisher: Hirzel Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 91
• Issue: 6
• Pages: 1025-1030
• Publisher URL: http://www.ingentaconnect.com/content/dav/aaua/2005/00000091/00000006/art00011
• Related Public URLs: http://www.acta-acustica-united-with-acustica.com/