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题名: Study on Plasma Blob to Result in Radio Signal Scintillations in Low Latitude Ionosphere
作者: Shi, J. K.; Wang, Z.; Torkar, K.; Zherebtsov, G.; Ratovsky, K.; Nomanova, E.
作者部门: 空间科学部
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
会议录: 2017 PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM - SPRING (PIERS)
出版日期: 2017
收录类别: EI ; CPCI
页码: 2004-2007
ISBN号: 978-1-5090-6269-0
英文摘要: 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.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.nssc.ac.cn/handle/122/6299
Appears in Collections:空间科学部_会议论文

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