Characteristics of convective structures of sodium layer in lower thermosphere (105-120 km) at Haikou (19.9 degrees N, 110.34 degrees E), China

	Characteristics of convective structures of sodium layer in lower thermosphere (105-120 km) at Haikou (19.9 degrees N, 110.34 degrees E), China
	Jiao, Jing; Yang, Guotao; Wang, Jihong; Zhang, Tiemin; Peng, Hongyan; Xun, Yuchang; Liu, Zhengkuan; Wang, Chi; Yang, GT (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
刊名	JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
	2017
卷号	164 页码:132-141
关键词	Low-latitude Ionosphere Lower Thermosphere Sodium Layer War
ISSN号	1364-6826
英文摘要	The atmospheric sodium layer normally occurs in the mesopause (80-105 km) region, but rarely in the lower thermosphere region (>105 km) at low latitude. We observed a kind of peculiar sodium layer in lower thermosphere at Haikou (19.99 degrees N, 110.34 degrees E)-the thermospheric convective sodium layer (TCSL) in a lidargram. The TCSL's sodium density unstably developed over time and appeared as several discontinuous convective shapes vertically. It is the first time convective sodium layer observed in the lower thermosphere region (105-120 km). Based on Haikou lidar data, we obtained 14 TCSL events during 180 nights from March 2010 to August 2012. Most of the apogees of the TCSL events are higher than 108 km. A TCSL event lasts several hours and is composed of several convective structures, with each veitical shape lasting similar to 5-30 min. All TCSL events occurred during spring and summer, and generally appear near midnight (22:00-00:00 LT). The TCSL has potential regional feature and appears to be related to the thermospheric sporadic E (Es) layers, winds, and field-aligned ionospheric irregularities (FAI).
语种	英语
资助机构	Natural Science Foundation of China [41474130, 41627804, 41604130] ; NSSC ; Specialized Research Fund for State Key Laboratories of China ; China-Brazil Joint Laboratory for Space Weather, CAS
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6132]
专题	国家空间科学中心_空间科学部
通讯作者	Yang, GT (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Jiao, Jing,Yang, Guotao,Wang, Jihong,et al. Characteristics of convective structures of sodium layer in lower thermosphere (105-120 km) at Haikou (19.9 degrees N, 110.34 degrees E), China[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2017,164:132-141.
APA	Jiao, Jing.,Yang, Guotao.,Wang, Jihong.,Zhang, Tiemin.,Peng, Hongyan.,...&Yang, GT .(2017).Characteristics of convective structures of sodium layer in lower thermosphere (105-120 km) at Haikou (19.9 degrees N, 110.34 degrees E), China.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,164,132-141.
MLA	Jiao, Jing,et al."Characteristics of convective structures of sodium layer in lower thermosphere (105-120 km) at Haikou (19.9 degrees N, 110.34 degrees E), China".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 164(2017):132-141.