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Mars' South Pole Ice Deep and Wide
03.15.07
 
New measurements of Mars' south polar region indicate extensive frozen water.
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Below are images related to this release.

Bright Lower Echo in Radargram of South Polar Layered Deposits
The upper image is a radargram from the Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS), showing data from the subsurface of Mars in the ice-rich layered deposits that surround the south pole.
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  Top portion: black-and-white tracing of echoes detected by radar instrument. Lower portion: color topographical map of the strip of terrain flown over by the orbiter during this radar observation.
Virtual Slice Through Icy Layered Deposits Near Mars' South Pole
The upper image is a radargram from the Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS), showing data from the subsurface of Mars in the ice-rich layered deposits that surround the south pole.
+ Full image and caption
  Top portion: black-and-white tracing of echoes detected by radar instrument. Lower portion: color topographical map of the strip of terrain flown over by the orbiter during this radar observation.
Thickness of Mars' South Polar Layered Deposits
This map shows the thickness of the south polar layered deposits of Mars, an ice-rich geologic unit that was probed by the Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS).
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  Multi-colored map of the south polar layered deposits of Mars indicates the thickness of the stack of ice-rich layers, from about 3.5 kilometers near the pole tapering to less than one-half kilometer at the edges.
Lower Boundary of Icy Layers Covering Mars' South Polar Region
This map shows the topography of the south polar region of Mars, including topography buried by thick deposits of icy material.
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  Multi-colored topographical map of the Martian region from the south pole to about 75 degrees south latitude indicates the contours of the rocky surface underneath the ice-rich polar layered deposits.
Upper Surface of Icy Layers Covering Mars' South Polar Region
This map shows the topography of the south polar region of Mars. The data were collected by the Mars Orbiter Laser Altimeter aboard NASA’s Mars Global Surveyor orbiter between 1997 and 2001.
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  Multi-colored topographical map of the Martian region from the south pole to about 75 degrees south latitude indicates the contours of the surface, including the top surface of the polar layered deposits.