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Periodic Insolation Variations on Mars

Murray, Bruce C. and Ward, William R. and Yeung, Sze C. (1973) Periodic Insolation Variations on Mars. Science, 180 (4086). pp. 638-640. ISSN 0036-8075. doi:10.1126/science.180.4086.638.

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Previously unrecognized insolation variations on Mars are a consequence of periodic variations in eccentricity, first established by the theory of Brouwer and Van Woerkom (1950). Such annual insolation variations, characterized by both 95,000-year and 2,000,000-year periodicities, may actually be recorded in newly discovered layered deposits in the polar regions of Mars. An additional north-south variation in seasonal insolation, but not average annual insolation, exists with 51,000-year and 2,000,000-year periodicities.

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Additional Information:© 1973 American Association for the Advancement of Science. 24 November 1972; revised 14 February 1973. L. A. Soderblom of the U.S. Geological Survey and California Institute of Technology originally called our attention to the Brouwer and Clemence reference to Mars' eccentricity variations, the essential starting point for this investigation. P. Goldreich of California Institute of Technology provided helpful advice. This work was partly supported by the National Aeronautics and Space Administration, Contribution No. 2235, Division of Geological and Planetary Sciences, California Institute of Technology.
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Caltech Division of Geological and Planetary Sciences2235
Issue or Number:4086
Record Number:CaltechAUTHORS:20151111-100012991
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Official Citation:Periodic Insolation Variations on Mars Bruce C. Murray, William R. Ward, and Sze C. Yeung Science 11 May 1973: 180 (4086), 638-640. [DOI:10.1126/science.180.4086.638]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62056
Deposited By: Ruth Sustaita
Deposited On:11 Nov 2015 20:55
Last Modified:10 Nov 2021 22:57

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