Ingersoll, Andrew P. and Orton, Glenn S. (1974) Lateral Inhomogeneities in the Venus Atmosphere: Analysis of Thermal Infrared Maps. Icarus, 21 (2). pp. 121-128. ISSN 0019-1035 http://resolver.caltech.edu/CaltechAUTHORS:20121205-114347814
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The thermal infrared maps of Venus published by Murray, Wildey, and Westphal (1963) and Westphal, Wildey, and Murray (1965) have been analyzed systematically in order to separate the observed intensity into a limb-darkening component and a solar-associated component representing fixed patterns of intensity corotating with the earth and sun, respectively. Interesting new results are obtained for the solar-associated component. Regions near the subsolar point and the poles are not covered in the original maps or in the analysis. The solar-associated pattern of intensity is very nearly symmetric about the equator. In both northern and southern hemispheres, an intensity minimum seems to occur near the morning terminator at middle to high latitudes, slightly beyond the limit of the maps. An intensity maximum occurs on the equator slightly to the east of the antisolar point. Three broad ridges of relatively high intensity radiate away from this point, one pointing to the west along the equator, the others pointing to the northeast and southeast, respectively. The eastward tilt of the latter two ridges may indicate that horizontal exchange is important in maintaining the equatorial maximum of zonal momentum which is associated with the 4-day circulation of the Venus atmosphere.
|Additional Information:||© 1974 by Academic Press, Inc. Received September 4, 1973. We are grateful for discussions of material presented in this paper with Dr. D. O. Muhleman and Prof. J. A. Westphal. This research was supported by NASA NGL 05-002-003.|
|Official Citation:||Andrew P. Ingersoll, Glenn S. Orton, Lateral inhomogeneities in the Venus atmosphere: Analysis of thermal infrared maps, Icarus, Volume 21, Issue 2, February 1974, Pages 121-128, ISSN 0019-1035, 10.1016/0019-1035(74)90128-6. (http://www.sciencedirect.com/science/article/pii/0019103574901286)|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||05 Dec 2012 20:58|
|Last Modified:||05 Dec 2012 20:58|
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