Saturn's equatorial oscillation: Evidence of descending thermal structure from Cassini radio occultations

被引：22

作者：

Schinder, P. J. ^{[1
]}

Flasar, F. M. ^{[3
]}

Marouf, E. A. ^{[5
]}

French, R. G. ^{[4
]}

McGhee, C. A. ^{[4
]}

Kliore, A. J. ^{[2
]}

Rappaport, N. J. ^{[2
]}

Barbinis, E. ^{[2
]}

Fleischman, D. ^{[2
]}

Anabtawi, A. ^{[2
]}

机构：

[1] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY 14853 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[4] Wellesley Coll, Dept Astron, Wellesley, MA 02481 USA

[5] San Jose State Univ, Dept Elect Engn, San Jose, CA 95192 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2011年 / 38卷

关键词：

STRATOSPHERIC TEMPERATURES; MIDDLE ATMOSPHERE; ZONAL WINDS; JUPITER;

D O I：

10.1029/2011GL047191

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A series of near-equatorial radio occultations of Cassini by Saturn occurred in 2005 and again in 2009-2010. Comparison of the temperature-pressure profiles obtained from the two sets of occultations shows evidence of a descending pattern in the stratosphere that is similar to those associated with equatorial oscillations in Earth's middle atmosphere. This is the first time that this descent has been observed in another planetary atmosphere. If absorption of upwardly propagating waves drives the descent, the implied absorbed flux is 0.05 m(2) s(-2), at least as large if not greater than on Earth. Citation: Schinder, P. J., F. M. Flasar, E. A. Marouf, R. G. French, C. A. McGhee, A. J. Kliore, N. J. Rappaport, E. Barbinis, D. Fleischman, and A. Anabtawi (2011), Saturn's equatorial oscillation: Evidence of descending thermal structure from Cassini radio occultations, Geophys. Res. Lett., 38, L08205, doi:10.1029/2011GL047191.

引用

页数：5

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