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Study on Plasma Blob to Result in Radio Signal Scintillations in Low Latitude Ionosphere
Shi, J. K.; Wang, Z.; Torkar, K.; Zherebtsov, G.; Ratovsky, K.; Nomanova, E.
作者部门空间科学部
会议录名称2017 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM - SPRING (PIERS)
2017
页码2004-2007
语种英语
ISBN号978-1-5090-6269-0
摘要It is well known that the ionosphere has significant influences on the radio wave propagation, for example, can result in radio signal scintillation. In general, the scintillations in the low latitude ionosphere are considered as signatures of equatorial plasma bubbles (depletions). However, some authors considered that the scintillations may also be associated with plasma blobs (enhancements), but it needs further observation to be confirmed. We performed a case study on concurrent observation of ionospheric plasma blob with in-situ measurements by satellite ROCSAT-1 and of radio signal amplitude scintillations with GPS receiver at low latitude Hainan station (19.5 degrees N, 109.1 degrees E, Mag 8.9 degrees N) on March 8, 2004. The ionospheric plasma blob in the F-layer measured in-situ had extend distance of about 375km along the orbit. The ion density inside the blobs was very high and severely disturbed. The concurrently observed GPS signal amplitude scintillations were with S-4 > 0.2 over the same station. There was no plasma bubble observed while the plasma blob appearing. Therefore, we can conclude that radio signal amplitude scintillations in this case were associated with the plasma blob. It confirms that the amplitude scintillations can also be caused by the plasma blob at low latitude.
会议名称Progress in Electromagnetics Research Symposium - Spring (PIERS)
会议日期MAY 22-25, 2017
会议地点St Petersburg, RUSSIA
收录类别EI ; CPCI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6299
专题空间科学部
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GB/T 7714
Shi, J. K.,Wang, Z.,Torkar, K.,et al. Study on Plasma Blob to Result in Radio Signal Scintillations in Low Latitude Ionosphere[C],2017:2004-2007.
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