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Science 17 December 1976:
Vol. 194. no. 4271, pp. 1341 - 1344
DOI: 10.1126/science.194.4271.1341

Articles

Martian North Pole Summer Temperatures: Dirty Water Ice

HUGH H. KIEFFER 1, STILLMAN C. CHASE JR. 2, TERRY Z. MARTIN 3, ELLIS D. MINER 4, and FRANK DON PALLUCONI 5

1 University of California, Los Angeles 90024
2 Santa Barbara Research Center, Goleta, California 93017
3 University of California, Los Angeles
4 Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91103
5 Jet Propulsion Laboratory

Broadband thermal and reflectance observations of the martian north polar region in late summer yield temperatures for the residual polar cap near 205 K with albedos near 43 percent. The residual cap and several outlying smaller deposits are water ice with included dirt; there is no evidence for any permanent carbon dioxide polar cap.

Submitted on October 18, 1976


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