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. 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 in-strument has been designed and first results will be given, together with future planned en-hancements.

Citation

Bradley, S., von Hünerbein, S., & Haddad, A. Atmospheric acoustic interferometer tomography of temperature and winds. Presented at International Workshop on Tomography and Acoustics, Leipzig, Germany

• Presentation Conference Type: Other
• Conference Name: International Workshop on Tomography and Acoustics
• Conference Location: Leipzig, Germany
• End Date: Mar 7, 2001
• Publication Date: Mar 7, 2001
• Deposit Date: Aug 19, 2010
• Publicly Available Date: Dec 10, 2020
• Keywords: Temperature profiles, acoustic propagation, sound speed profile, acoustic inter-ferrometer
• Additional Information: Event Type : Conference