Thermophysical properties of the MER and Beagle II landing site regions on Mars

Bruce M. Jakosky, Brian M. Hynek, Shannon M. Pelkey, Michael T. Mellon, Sara Martínez-Alonson, Nathaniel E. Putzig, Nate Murphy, Philip Christensen

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We analyzed remote-sensing observations of the Isidis Basin, Gusev Crater, and Meridiani Planum landing sites for Beagle II, MER-A Spirit, and MER-B Opportunity spacecraft, respectively. We emphasized the thermophysical properties using daytime and nighttime radiance measurements from the Mars Global Surveyor (MGS) Thermal Emission Spectrometer and Mars Odyssey Thermal Emission Imaging System (THEMIS) and thermal inertias derived from nighttime data sets. THEMIS visible images, MGS Mars Orbiter Camera (MOC) narrow-angle images, and MGS Mars Orbiter Laser Altimeter (MOLA) data are incorporated as well. Additionally, the remote-sensing data were compared with ground-truth at the MER sites. The Isidis Basin surface layer has been shaped by aeolian processes and erosion by slope winds coming off of the southern highlands and funneling through notches between massifs. In the Gusev region, surface materials of contrasting thermophysical properties have been interpreted as rocks or bedrock, duricrust, and dust deposits; these are consistent with a complex geological history dominated by volcanic and aeolian processes. At Meridiani Planum the many layers having different thermophysical and erosional properties suggest periodic deposition of differing sedimentological facies possibly related to clast size, grain orientation and packing, or mineralogy.

Original languageEnglish (US)
Article numberE08008
JournalJournal of Geophysical Research E: Planets
Volume111
Issue number8
DOIs
StatePublished - Aug 20 2006

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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    Jakosky, B. M., Hynek, B. M., Pelkey, S. M., Mellon, M. T., Martínez-Alonson, S., Putzig, N. E., Murphy, N., & Christensen, P. (2006). Thermophysical properties of the MER and Beagle II landing site regions on Mars. Journal of Geophysical Research E: Planets, 111(8), [E08008]. https://doi.org/10.1029/2004JE002320