Cassini Imaging Science: Initial results on Saturn's atmosphere

被引：94
|
作者：
Porco, CC
Baker, E
Barbara, J
Beurle, K
Brahic, A
Burns, JA
Charnoz, S
Cooper, N
Dawson, DD
Del Genio, AD
Denk, T
Dones, L
Dyudina, U
Evans, MW
Giese, B
Grazier, K
Heifenstein, P
Ingersoll, AP
Jacobson, RA
Johnson, TV
McEwen, A
Murray, CD
Neukum, G
Owen, WM
Perry, J
Roatsch, T
Spitale, J
Squyres, S
Thornas, P
Tiscareno, M
Turtle, E
Vasavada, AR
Veverka, J
Wagner, R
West, R
机构：
[1] Space Sci Inst, Cassini Imaging Cent Lab Operat, Boulder, CO 80301 USA
[2] NASA, Goddard Inst Space Studies, New York, NY 10025 USA
[3] Univ London, Queen Mary, Astron Unit, London E1 4NS, England
[4] Univ Paris 07, Ctr Etud Saclay, F-91191 Gif Sur Yvette, France
[5] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA
[6] Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA
[7] Free Univ Berlin, Inst Geol Wissensch, D-12249 Berlin, Germany
[8] SW Res Inst, Dept Space Sci, Boulder, CO 80302 USA
[9] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
[10] German Aerosp Ctr, Inst Planetary Res, D-12489 Berlin, Germany
[11] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
SCIENCE | 2005年 / 307卷 / 5713期
关键词：
D O I：
10.1126/science.1107691
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The Cassini Imaging Science Subsystem (ISS) began observing Saturn in early February 2004. From analysis of cloud motions through early October 2004, we report vertical wind shear in Saturn's equatorial jet and a maximum wind speed of similar to375 meters per second, a value that differs from both Hubble Space Telescope and Voyager values. We also report a particularly active narrow southern mid-latitude region in which dark ovals are observed both to merge with each other and to arise from the eruptions of large, bright storms. Bright storm eruptions are correlated with Saturn's electrostatic discharges, which are thought to originate from lightning.
引用
收藏
页码：1243 / 1247
页数：5
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