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Science 29 July 1994:
Vol. 265. no. 5172, pp. 625 - 631
DOI: 10.1126/science.265.5172.625
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Articles

Spatial Organization and Time Dependence of Jupiter's Tropospheric Temperatures, 1980-1993

Glenn S. Orton 1, A. James Friedson 1, Padmavati A. Yanamandra-Fisher 1, John Caldwell 2, Heidi B. Hammel 3, Kevin H. Baines 1, Jay T. Bergstralh 4, Terry Z. Martin 1, Robert A. West 1, Glenn J. Veeder Jr. 5, David K. Lynch 6, Ray Russell 6, Michael E. Malcom 7, William F. Golisch 8, David M. Griep 8, Charles D. Kaminski 8, Alan T. Tokunaga 8, Thomas Herbst 9, and Mark Shure 8

1 M. S. 169-237, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
2 Space Astrophysics Laboratory, Institute for Space and Terrestrial Science, Concord, Ontario L4K 3C8, Canada
3 Department of Earth, Atmospheric and Planetary Sciences, Building 54-416, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
4 Code SL-4, National Aeronautics and Space Administration, Washington, DC 20546, USA
5 M. S. 183-501, Jet, Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
6 Space Sciences Laboratory, M2-266, The Aerospace Corporation, P.O. Box 92957, Los Angeles, CA 90009, USA
7 TRW, R2/2186, 1 Space Park, Redondo Beach, CA 90278, USA
8 Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA
9 Max-Planck-Institute für Astronomie, Heidelberg, Germany

The spatial organization and time dependence of Jupiter's temperatures near 250-millibar pressure were measured through a jovian year by imaging thermal emission at 18 micrometers. The temperature field is influenced by seasonal radiative forcing, and its banded organization is closely correlated with the visible cloud field. Evidence was found for a quasi-periodic oscillation of temperatures in the Equatorial Zone, a correlation between tropospheric and stratospheric waves in the North Equatorial Belt, and slowly moving thermal features in the North and South Equatorial Belts. There appears to be no common relation between temporal changes of temperature and changes in the visual albedo of the various axisymmetric bands.

Submitted on December 27, 1993
Accepted on May 2, 1994


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