Gone with the wind

Eolian erasure of the Mars Rover tracks

P. E. Geissler, R. Sullivan, M. Golombek, J. R. Johnson, K. Herkenhoff, N. Bridges, A. Vaughan, J. Maki, T. Parker, James Bell

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The wheel tracks left by the Mars Exploration Rovers Spirit and Opportunity are unique artificial markings on the surface of Mars. The tracks stretch several kilometers across diverse terrain in two widely separated regions of the planet. The initial appearance and characteristics of the tracks were well documented by the science and navigation cameras aboard the vehicles at the time the tracks were formed. Orbital observations by Mars Global Surveyor and Mars Reconnaissance Orbiter document the erasure of the tracks over a period of more than 2 Mars years. Close-up examinations of track crossings, where the rovers encountered tracks made hundreds of Martian solar days earlier, provide insights into the mechanisms and time scales of eolian alteration on Mars. These observations suggest that fallout of atmospheric dust plays only a minor role in obscuring rover tracks over time. Instead, track erasure is dominated by sediment that is transported by surface winds. Both deposition and erosion act to erase the rover tracks. The length scales for eolian sediment transport are hundreds of meters at least, much larger than the size of the tracks. Gradual processes such as dust devils and sand saltation have minor effects that can nonetheless erase rover tracks over long time periods. However, short-lived strong wind events associated with seasonal dust storms have much more pronounced effects, significantly altering the tracks on time scales of days. These episodic strong winds tend to occur annually during the perihelion season. The time scale for track erasure is typically only 1 Martian year.

Original languageEnglish (US)
Article numberE00F11
JournalJournal of Geophysical Research E: Planets
Volume115
Issue number11
DOIs
StatePublished - 2010
Externally publishedYes

Fingerprint

mars
Dust
Mars
Fallout
Sediment transport
Planets
timescale
Erosion
Wheels
Sediments
Navigation
Sand
Cameras
dust devil
saltation
dust storm
fallout
surface wind
navigation
sediment transport

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Geissler, P. E., Sullivan, R., Golombek, M., Johnson, J. R., Herkenhoff, K., Bridges, N., ... Bell, J. (2010). Gone with the wind: Eolian erasure of the Mars Rover tracks. Journal of Geophysical Research E: Planets, 115(11), [E00F11]. https://doi.org/10.1029/2010JE003674

Gone with the wind : Eolian erasure of the Mars Rover tracks. / Geissler, P. E.; Sullivan, R.; Golombek, M.; Johnson, J. R.; Herkenhoff, K.; Bridges, N.; Vaughan, A.; Maki, J.; Parker, T.; Bell, James.

In: Journal of Geophysical Research E: Planets, Vol. 115, No. 11, E00F11, 2010.

Research output: Contribution to journalArticle

Geissler, PE, Sullivan, R, Golombek, M, Johnson, JR, Herkenhoff, K, Bridges, N, Vaughan, A, Maki, J, Parker, T & Bell, J 2010, 'Gone with the wind: Eolian erasure of the Mars Rover tracks', Journal of Geophysical Research E: Planets, vol. 115, no. 11, E00F11. https://doi.org/10.1029/2010JE003674
Geissler PE, Sullivan R, Golombek M, Johnson JR, Herkenhoff K, Bridges N et al. Gone with the wind: Eolian erasure of the Mars Rover tracks. Journal of Geophysical Research E: Planets. 2010;115(11). E00F11. https://doi.org/10.1029/2010JE003674
Geissler, P. E. ; Sullivan, R. ; Golombek, M. ; Johnson, J. R. ; Herkenhoff, K. ; Bridges, N. ; Vaughan, A. ; Maki, J. ; Parker, T. ; Bell, James. / Gone with the wind : Eolian erasure of the Mars Rover tracks. In: Journal of Geophysical Research E: Planets. 2010 ; Vol. 115, No. 11.
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