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The global topography of Mars and implications for surface evolutionElevations measured by the Mars Orbiter Laser Altimeter have yielded a high-accuracy global map of the topography of Mars. Dominant features include the low northern hemisphere, the Tharsis province, and the Hellas impact basin. The northern hemisphere depression is primarily a long-wavelength effect that has been shaped by an internal mechanism. The topography of Tharsis consists of two broad rises. Material excavated from Hellas contributes to the high elevation of the southern hemisphere and to the scarp along the hemispheric boundary. The present topography has three major drainage centers, with the northern lowlands being the largest. The two polar cap volumes yield an upper limit of the present surface water inventory of 3.2 to 4.7 million cubic kilometers.
Document ID
20040141945
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Smith, D. E.
(NASA Goddard Space Flight Center Greenbelt MD United States)
Zuber, M. T.
Solomon, S. C.
Phillips, R. J.
Head, J. W.
Garvin, J. B.
Banerdt, W. B.
Muhleman, D. O.
Pettengill, G. H.
Neumann, G. A.
Lemoine, F. G.
Abshire, J. B.
Aharonson, O.
Brown, C. D.
Hauck, S. A.
Ivanov, A. B.
McGovern, P. J.
Zwally, H. J.
Duxbury, T. C.
Date Acquired
August 22, 2013
Publication Date
May 28, 1999
Publication Information
Publication: Science
Volume: 284
Issue: 5419
ISSN: 0036-8075
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Other

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