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Infrared Thermal Mapping of the Martian Surface and Atmosphere: First Results

Kieffer, Hugh H. and Chase, Stillman C., Jr. and Miner, Ellis D. and Palluconi, Frank Don and Münch, Guido and Neugebauer, Gerry and Martin, Terry Z. (1976) Infrared Thermal Mapping of the Martian Surface and Atmosphere: First Results. Science, 193 (4255). pp. 780-786. ISSN 0036-8075. doi:10.1126/science.193.4255.780.

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The Viking infrared thermal mapper measures the thermal emission of the martian surface and atmosphere and the total reflected sunlight. With the high resolution and dense coverage being achieved, planetwide thermal structure is apparent at large and small scales. The thermal behavior of the best-observed areas, the landing sites, cannot be explained by simple homogeneous models. The data contain clear indications for the relevance of additional factors such as detailed surface texture and the occurrence of clouds. Areas in the polar night have temperatures distinctly lower than the CO_2 condensation point at the surface pressure. This observation implies that the annual atmospheric condensation is less than previously assumed and that either thick CO_2 clouds exist at the 20-kilometer level or that the polar atmosphere is locally enriched by noncondensable gases.

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Additional Information:© 1976 American Association for the Advancement of Science. 26 July 1976. The two Viking IRTM experiments represent a fourfold increase in the total number of thermal detectors flown to other planets. Their success is the result of the individual efforts of a large number of people during design, fabrication, and the complex flight operations of this instrument. The prolonged efforts of Mike Agabra, Jack Engel, Howard Eyerly, Claude Michaux, Richard Ruiz, and Don Schofield are representative of this group. The massive data reduction system is a tribute to and from Bob Mehlman, John Gieselman, and Elliot Goldyn. We hope all involved take satisfaction from this evidence of their effort. Supported by Jet Propulsion Laboratory contract 952988 to the University of California.
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Issue or Number:4255
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Official Citation:Infrared Thermal Mapping of the Martian Surface and Atmosphere: First Results BY HUGH H. KIEFFER, STILLMAN C. CHASE JR., ELLIS D. MINER, FRANK DON PALLUCONI, GUIDO MÜNCH, GERRY NEUGEBAUER, TERRY Z. MARTIN Science 27 Aug 1976: Vol. 193, Issue 4255, pp. 780-786 DOI: 10.1126/science.193.4255.780
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74568
Deposited By: George Porter
Deposited On:28 Feb 2017 15:31
Last Modified:11 Nov 2021 05:28

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