Discussion of sound propagation through the turbulent Martian atmosphere and implications for inference of turbulence spectra
Year: 2024
Type: editorial
Abstract: Chide et al. [J. Acoust. Soc. Am. 155, 420-435 (2024)] provide a first attempt to infer the spectrum of temperature fluctuations on Mars from experimental data on the variances of travel-time and log-amplitude fluctuations recorded by the microphone on board the Perseverance rover. However, the theoretical formulations that were used to interpret the travel-time data have limitations. In addition to explaining those issues, this article also outlines approaches for predicting statistical characteristics of acoustic signals in the Martian atmosphere. In particular, the experimentally observed dependence of the travel-time variance on the propagation range can be attributed to ground-blocking of buoyantly produced turbulent velocity fluctuations and the non-Markov character of phase fluctuations.
DOI: 10.1121/10.0028166
Institutions: U.S. Army Engineer Research and Development Center, Institut de Recherche en Astrophysique et Planétologie, Lyon 1 Université, École Centrale de Lyon, Centre National de la Recherche Scientifique, Laboratoire de Mécanique des Fluides et d'Acoustique, Institut National des Sciences Appliquées de Lyon
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4401637926