NSSC OpenIR  > 空间科学部
Alternative TitleObservation of Sporadic Sodium Layer over Haikou of China in 2010
张铁民; 王继红; 刘汉军
Source Publication空间科学学报
Keyword激光雷达 突发钠层 电离层偶发 低纬度地区
Other AbstractSodium lidar observations of Sporadic Sodium Layers (SSL) in 2010 at a low-latitude location (Haikou, China, 20.0°N, 110.3°E) are reported in this paper. The wavelength of the dye laser is set to 589 nm by a sodium fluorescence cell. The energy and divergence of the beam are about 45 mJ and 1mrad,respectively. The repetition rate of Nd:YAG laser is 30 Hz. The backscattered fluorescence photons from the sodium layer are collected by a telescope with a 1000 mm diameter primary mirror. From 38 SSLs events detected in about 458 h of observation, an SSL occurrence rate of 1 event every 12 h at our location was obtained. This result, combined with previous studies at a mid-latitude location (Wuhan, China, 31°N, 114°E), and compared with the SSLs at a low-latitude location (Brazil, 23°S, 46°W), reveals that the SSL occurrence can be frequent at a low-latitude location of Haikou, China. The profiles of a peak density of the SSL were very spatial symmetry on Dec. 30, 2010. With respect to the correlation with sporadic E, the ionosphere data obtained by an ionosonde operated at Danzhou, China (19.5°N, 109.1°E), about 160km southwest of Haikou lidar station, have been examined. By statistical analysis of 13 events, when simultaneous SSL data and ionograms are available, a considerable correlation was found between sporadic E layers and the SSLs. The sporadic sodium layers have average downward vertical velocities at Haikou, China.
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Document Type期刊论文
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GB/T 7714
张铁民,王继红,刘汉军. 2010年海口上空突发钠层事件观测[J]. 空间科学学报,2015,35(5):566-573.
APA 张铁民,王继红,&刘汉军.(2015).2010年海口上空突发钠层事件观测.空间科学学报,35(5),566-573.
MLA 张铁民,et al."2010年海口上空突发钠层事件观测".空间科学学报 35.5(2015):566-573.
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