Subsurface Radar Sounding of the South Polar Layered Deposits of Mars

  title={Subsurface Radar Sounding of the South Polar Layered Deposits of Mars},
  author={Jeffrey J. Plaut and Giovanni Picardi and Ali. Safaeinili and Anton Ivanov and Sarah Milkovich and Andrea Cicchetti and Wlodek Kofman and J{\'e}r{\'e}mie Mouginot and William M. Farrell and Roger J. Phillips and Stephen M. Clifford and Alessandro Frigeri and Roberto Orosei and Costanzo Federico and Iwan Prys Williams and Donald A. Gurnett and Erling Nielsen and Tor Hagfors and E. Heggy and Ellen R. Stofan and Dirk Plettemeier and Thomas R. Watters and Carl Leuschen and Peter Edenhofer},
  pages={92 - 95}
The ice-rich south polar layered deposits of Mars were probed with the Mars Advanced Radar for Subsurface and Ionospheric Sounding on the Mars Express orbiter. The radar signals penetrate deep into the deposits (more than 3.7 kilometers). For most of the area, a reflection is detected at a time delay that is consistent with an interface between the deposits and the substrate. The reflected power from this interface indicates minimal attenuation of the signal, suggesting a composition of nearly… 
Density of Mars' South Polar Layered Deposits
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Bright radar reflections observed beneath the south polar layered deposits (SPLD) by the Mars Advanced Radar for Subsurface and Ionosphere Sounding instrument were interpreted to represent liquid
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The Shallow Radar (SHARAD) on the Mars Reconnaissance Orbiter has imaged the internal stratigraphy of the north polar layered deposits of Mars, revealing a laterally continuous deposition of layers which typically consist of four packets of finely spaced reflectors separated by homogeneous interpacket regions of nearly pure ice.


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