Other
Scientific paper
Mar 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jgr...105.6961v&link_type=abstract
Journal of Geophysical Research, Volume 105, Issue E3, p. 6961-6970
Other
28
Planetology: Solid Surface Planets: Physical Properties Of Materials, Planetology: Solid Surface Planets: Polar Regions, Planetology: Solar System Objects: Mars
Scientific paper
On December 3, 1999, the Mars Polar Lander and Mars Microprobes will land on the planet's south polar layered deposits near (76°S, 195°W) and conduct the first in situ studies of the planet's polar regions. The scientific goals of these missions address several poorly understood and globally significant issues, such as polar meteorology, the composition and volatile content of the layered deposits, the erosional state and mass balance of their surface, their possible relationship to climate cycles, and the nature of bright and dark aeolian material. Derived thermal inertias of the southern layered deposits are very low (50-100 Jm-2s-1/2K-1), suggesting that the surface down to a depth of a few centimeters is generally fine grained or porous and free of an appreciable amount of rock or ice. The landing site region is smoother than typical cratered terrain on ~1 kmpixel-1 Viking Orbiter images but contains low-relief texture on ~5 to 100 mpixel-1 Mariner 9 and Mars Global Surveyor images. The surface of the southern deposits is older than that of the northern deposits and appears to be modified by aeolian erosion or ablation of ground ice.
Bass Deborah S.
Bridges Nathan T.
Greeley Ronald
Herkenhoff Ken E.
McBride Karen S.
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