Midlatitude and high-latitude electron density profiles in the ionosphere of Saturn obtained by Cassini radio occultation observations

被引:49
作者
Kliore, A. J. [1 ]
Nagy, A. F. [2 ]
Marouf, E. A. [3 ]
Anabtawi, A. [1 ]
Barbinis, E. [1 ]
Fleischman, D. U. [1 ]
Kahan, D. S. [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[2] Univ Michigan, Space Phys Res Lab, Ann Arbor, MI 48109 USA
[3] San Jose State Univ, Dept Elect Engn, San Jose, CA 95192 USA
关键词
ATMOSPHERE;
D O I
10.1029/2008JA013900
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Nineteen new radio occultations of the ionosphere of Saturn have been obtained since 2006. Sixteen of these occultations were from midlatitude and high latitudes and thus provided important, new information of the ionosphere for these regions. A high degree of variability in the electron densities were observed, but grouping and averaging the observations as low-, middle-, and high-latitude ones clearly showed that the electron densities increase with latitude. The topside scale heights also indicate small increases with latitude, but these changes are small enough so these increases may not be statistically significant.
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页数:8
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