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Geomorphic Evidence for Martian Ground Ice and Climate ChangeRecent results from gamma-ray and neutron spectrometers on Mars Odyssey indicate the presence of a hydrogen-rich layer tens of centimeters thick in the uppermost meter in high latitudes (greater than 60) on Mars. This hydrogen-rich layer correlates to regions of ice stability. Thus, the subsurface hydrogen is thought to be water ice constituting 35 plus or minus 15% by weight near the north and south polar regions. We refine the location of subsurface ice deposits at a less than km scale by combining existing spectroscopy data with surface features indicative of subsurface ice. A positive correlation between spectroscopy data and geomorphic ice indicators has been previously suggested for high latitudes. Here we expand the comparative study to northern mid latitudes (30 degrees N- 65 degrees N).
Document ID
20040062251
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Kanner, L. C.
(Carleton Coll. Northfield, MN, United States)
Allen, C. C.
(NASA Johnson Space Center Houston, TX, United States)
Bell, M. S.
(Lockheed Martin Corp. Houston, TX, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Lunar and Planetary Science XXXV: Special Session: Mars Climate Change
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Public Use Permitted.
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