title: A Martian acoustic anemometer.
abstract: An acoustic anemometer for use on Mars has been developed. To understand the processes that control the interaction between surface and atmosphere on Mars, not only the mean winds, but also the turbulent boundary layer, the fluxes of momentum, heat and molecular constituents between surface and atmosphere must be measured. Terrestrially this is done with acoustic anemometers, but the low density atmosphere on Mars makes it challenging to adapt such an instrument for use on Mars. This has been achieved using capacitive transducers and pulse compression, and was successfully demonstrated on a stratospheric balloon (simulating the Martian environment) and in a dedicated Mars Wind Tunnel facility. This instrument achieves a measurement accuracy of ∼5 cm/s with an update rate of >20 Hz under Martian conditions.
authors: Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, New York 14853, USA.
authors: Don
authors: D
authors: Banfield
authors: MicroAcoustic Instruments, Incorporated, 416 Chemin d'Aylmer, Suite 1, Gatineau, Quebec J9H 1A8, Canada.
authors: David W
authors: DW
authors: Schindel
authors: Boulder Systems Design, Incorporated, 503 Collyer Street, Longmont, Colorado 80501, USA.
authors: Steve
authors: S
authors: Tarr
authors: Ball Aerospace & Technologies Corporation, 1600 Commerce Street, Boulder, Colorado 80301, USA.
authors: Richard W
authors: RW
authors: Dissly