气候变化领域集成服务门户(CCPortal): Statistical Characteristics of Spread F in the Northeastern Edge of the Qinghai-Tibet Plateau during 2017-2022

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DOI	10.3390/rs16071142
	Statistical Characteristics of Spread F in the Northeastern Edge of the Qinghai-Tibet Plateau during 2017-2022
	Liu, Zhichao; Jiang, Chunhua; Liu, Tongxin; Wei, Lehui; Yang, Guobin; Shen, Hua; Huang, Wengeng; Zhao, Zhengyu
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	7
卷号	16 期号:7
英文摘要	Spread F (SF) in the ionosphere can be observed frequently in mid-latitude regions. It is suggested that atmospheric gravity waves play a significant role for the seeding of mid-latitude SF. Previous research suggested that the source of travelling ionospheric disturbances (TIDs) over China is in the southeastern and northeastern edge of the Qinghai-Tibet Plateau, however, until now there have been no ground-based observations of the ionosphere in this region. Recently, an advanced digital ionosonde was installed at Zhangye station (39.2 degrees N, 100.54 degrees E, Dip Lat 29.6 degrees N) in the northeastern edge of the Qinghai-Tibet Plateau. It is an opportunity to verify the effect of gravity waves on the formation of mid-latitude SF by comparing it with observations in other regions of the Chinese sector. In this study, statistical analysis of SF recorded at Zhangye station during 2017-2022 was carried out. Results show that diurnal, seasonal and solar cycle characteristics of the occurrence rate of SF are similar with previous studies. At Zhangye station, the maximum occurrence rate of SF is during the post-midnight period in summer and winter. The occurrence rate of SF events have a negative relationship with solar activity. There is no obvious relationship between the occurrence rate of SF and geomagnetic activity. Comparing observations of other stations in the mid-latitude region, we found that the occurrence rates of SF (the annual maximum rates are from 33.83% to 53.29%) are much higher at Zhangye station. Further studies show that ionospheric disturbances can be observed frequently at Zhangye station, especially in autumn and winter. Gravity waves/TIDs in the northeast of the Qinghai-Tibet Plateau are suggested to explain the abnormal higher occurrence rate of SF at Zhangye station.
英文关键词	mid-latitude spread F; atmospheric gravity waves; Qinghai-Tibet Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001201660500001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/307852
作者单位	Wuhan University; Chinese Academy of Sciences; National Space Science Center, CAS
推荐引用方式 GB/T 7714	Liu, Zhichao,Jiang, Chunhua,Liu, Tongxin,et al. Statistical Characteristics of Spread F in the Northeastern Edge of the Qinghai-Tibet Plateau during 2017-2022[J],2024,16(7).
APA	Liu, Zhichao.,Jiang, Chunhua.,Liu, Tongxin.,Wei, Lehui.,Yang, Guobin.,...&Zhao, Zhengyu.(2024).Statistical Characteristics of Spread F in the Northeastern Edge of the Qinghai-Tibet Plateau during 2017-2022.REMOTE SENSING,16(7).
MLA	Liu, Zhichao,et al."Statistical Characteristics of Spread F in the Northeastern Edge of the Qinghai-Tibet Plateau during 2017-2022".REMOTE SENSING 16.7(2024).