Smith, David E. and Zuber, Maria T. and Solomon, Sean C. and Phillips, Roger J. and Head, James W. and Garvin, James B. and Banerdt, W. Bruce and Muhleman, Duane O. and Pettengill, Gordon H. and Neumann, Gregory A. and Lemoine, Frank G. and Abshire, James B. and Aharonson, Oded and Brown, C. David and Hauck, Steven A. and Ivanov, Anton B. and McGovern, Patrick J. and Zwally, H. Jay and Duxbury, Thomas C. (1999) The Global Topography of Mars and Implications for Surface Evolution. Science, 284 (5419). pp. 1495-1503. ISSN 0036-8075. doi:10.1126/science.284.5419.1495. https://resolver.caltech.edu/CaltechAUTHORS:20141125-075410579
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Abstract
Elevations 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.
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| Additional Information: | © 1999 American Association for the Advancement of Science. Received 21 April 1999; accepted 10 May 1999. We acknowledge the MOLA instrument team and the MGS spacecraft and operation teams at the Jet Propulsion Laboratory and Lockheed-Martin Astronautics for providing the engineering foundation that enabled this analysis. We also thank G. Elman, P. Jester, and J. Schott for assistance in altimetry processing, D. Rowlands and S. Fricke for help with orbit determination, S. Zhong for assistance with the Hellas relaxation calculation, and G. McGill for a constructive review. The MOLA investigation is supported by the NASA Mars Global Surveyor Project. | ||||||||||||||||||||
| Errata: | In note 14 (p. 1502) of the Research Article “The global topography of Mars and Implications for surface evolution” by D. E. Smith et al. (28 May, p. 1495), the last line should have read, “3,396,000 m.” | ||||||||||||||||||||
| Group: | Division of Geological and Planetary Sciences | ||||||||||||||||||||
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| Issue or Number: | 5419 | ||||||||||||||||||||
| DOI: | 10.1126/science.284.5419.1495 | ||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20141125-075410579 | ||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141125-075410579 | ||||||||||||||||||||
| Official Citation: | The Global Topography of Mars and Implications for Surface Evolution David E. Smith, Maria T. Zuber, Sean C. Solomon, Roger J. Phillips, James W. Head, James B. Garvin, W. Bruce Banerdt, Duane O. Muhleman, Gordon H. Pettengill, Gregory A. Neumann, Frank G. Lemoine, James B. Abshire, Oded Aharonson, C. David, Brown, Steven A. Hauck, Anton B. Ivanov, Patrick J. McGovern, H. Jay Zwally, and Thomas C. Duxbury Science 28 May 1999: 284 (5419), 1495-1503. [DOI:10.1126/science.284.5419.1495] | ||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||
| ID Code: | 52119 | ||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||
| Deposited On: | 25 Nov 2014 20:48 | ||||||||||||||||||||
| Last Modified: | 07 Mar 2023 23:21 |
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