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Published June 1979 | Published
Journal Article Open

Martian wind activity detected by a seismometer at Viking Lander 2 site

Abstract

The seismic 'background noise' detected by the seismometer on the Viking lander 2 has an extremely high correlation with the measured wind speed at the landing site. When displayed in a compressed form, the nearly continuous seismic data clearly exhibit the diurnal as well as seasonal variations of the Martian wind activity. A preliminary spectral analysis of the long‐term variation of the background noise indicates persistent spectral peaks at periods near 1.5, 3, 7 and 10‐20 sols for the first 560 sols (0.84 Martian year) of observation.

Additional Information

© 1979 by the American Geophysical Union. Paper number 9L0719. Received April 24, 1979; accepted May 8, 1979. We wish to thank G. V. Latham and H. J. Dorman for reviewing the manuscript and offering constructive comments. This work was supported by NASA contract NAS1-9703 and Grant NSG-7418. The University of Texas Marine Science Institute Contribution No. 338, Galveston Geophysics Laboratory. Contribution Number 3236, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125.

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Created:
August 19, 2023
Modified:
October 19, 2023