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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3846
DTSTART:20151030T170000Z
DTEND:20151030T180000Z
DTSTAMP:20260417T101904Z
LAST-MODIFIED:20151026T172425Z
LOCATION:4421 Sterling Hall
SUMMARY:Widespread buried ice in Arcadia Planitia\, Mars \, Special Fr
 iday Lunch Talk\, Ali Bramson\, University of Arizona
DESCRIPTION:The distribution and concentration of subsurface water ice
  on Mars are key constraints on past climate and the processes that le
 d to the ice’s deposition. We investigate the subsurface of Arcadia 
 Planitia by measuring the depth of terraces in simple impact craters a
 nd mapping a widespread subsurface reflection in radar sounding data. 
 Our mapping of these data sets has allowed us to constrain the thickne
 ss\, latitude range and volume of an extensive subsurface layer. We ha
 ve also constrained the composition of the layer by combining these da
 ta\, and results are consistent with a widespread deposit of excess ic
 e in the northern mid-latitudes of Mars. Understanding the conditions 
 that formed and preserved this thick\, extensive layer of ice will imp
 rove our understanding of the Martian climate system and the deposit m
 ay also serve as a resource for future human exploration to Mars. 
URL:https://www.physics.wisc.edu/events/?id=3846
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