Atmospheric Imaging Results from the Mars Exploration Rovers: Spirit and Opportunity

Details Atmospheric Imaging Results from the Mars Exploration Rovers: Spirit and Opportunity Atmospheric Imaging Results from the Mars Exploration Rovers: Spirit and Opportunity

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sci...306.1753l&link_type=abstract

Science, Volume 306, Issue 5702, pp. 1753-1756 (2004).

Computer Science

89

Scientific paper

A visible atmospheric optical depth of 0.9 was measured by the Spirit rover at Gusev crater and by the Opportunity rover at Meridiani Planum. Optical depth decreased by about 0.6 to 0.7% per sol through both 90-sol primary missions. The vertical distribution of atmospheric dust at Gusev crater was consistent with uniform mixing, with a measured scale height of 11.56 +/- 0.62 kilometers. The dust's cross section weighted mean radius was 1.47 +/- 0.21 micrometers (μm) at Gusev and 1.52 +/- 0.18 μm at Meridiani. Comparison of visible optical depths with 9-μm optical depths shows a visible-to-infrared optical depth ratio of 2.0 +/- 0.2 for comparison with previous monitoring of infrared optical depths.

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