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Science 24 December 1971:
Vol. 174. no. 4016, pp. 1321 - 1324
DOI: 10.1126/science.174.4016.1321
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Articles

Martian Craters and a Scarp as Seen by Radar

G. H. Pettengill 1, A. E. E. Rogers 2, and I. I. Shapiro 3

1 Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge 02139
2 Haystack Observatory, Northeast Radio Observatory Corporation, Westford, Massachusetts 01886
3 Department of Earth and Planetary Sciences, Massachusetts Institute of Technology

Radar observations of Mars with a surface resolution of 1.3° in latitude and 0.8° in longitude have been carried out during the opposition of 1971. With a precision in surface height measurement approaching 75 meters in regions of high reflectivity, it has been possible to measure the detailed characteristics of a number of craters. Many of these can be identified with craters shown in Mariner photographs of Mars. In addition, a scarp has been seen at 41° west, 14° south with an average slope of about 6° extending over about 40 kilometers.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Venus: Topography Revealed by Radar Data.
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Mariner 9 Television Reconnaissance of Mars and Its Satellites: Preliminary Results.
H. Masursky, H. Masursky, R. M. Batson, J. F. McCauley, L. A. Soderblom, R. L. Wildey, M. H. Carr, D. J. Milton, D. E. Wilhelms, B. A. Smith, et al. (1972)
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Infrared Spectroscopy Experiment on the Mariner 9 Mission: Preliminary Results.
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Infrared Radiometry Experiment on Mariner 9.
S. C. Chase, S. C. Chase Jr., H. Hatzenbeler, H. H. Kieffer, E. Miner, G. Munch, and G. Neugebauer (1972)
Science 175, 308-309
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Mariner 9 S-Band Martian Occultation Experiment: Initial Results on the Atmosphere and Topography of Mars.
A. J. Kliore, A. J. Kliore, D. L. Cain, G. Fjeldbo, B. L. Seidel, and S. I. Rasool (1972)
Science 175, 313-317
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Mariner 9 Celestial Mechanics Experiment: Gravity Field and Pole Direction of Mars.
J. Lorell, J. Lorell, G. H. Born, E. J. Christensen, J. F. Jordan, P. A. Laing, W. L. Martin, W. L. Sjogren, I. I. Shapiro, R. D. Reasenberg, et al. (1972)
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