KMS National Astronomical Observatories, CAS
| Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations | |
| Gao, Chao1,2; Jin, Shuanggen1,3,4; Yuan, Liangliang1,2 | |
| 2020-07-01 | |
| Source Publication | REMOTE SENSING
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| Volume | 12Issue:14Pages:18 |
| Abstract | Geomagnetic storms are extreme space weather events, which have considerable impacts on the ionosphere and power transmission systems. In this paper, the ionospheric responses to the geomagnetic storm on 22 June 2015, are analyzed from ground-based and satellite-based Global Navigation Satellite System (GNSS) observations as well as observational data of digital ionosondes, and the main physical mechanisms of the ionospheric disturbances observed during the geomagnetic storm are discussed. Salient positive and negative storms are observed from vertical total electron content (VTEC) based on ground-based GNSS observations at different stages of the storm. Combining topside observations of Low-Earth-Orbit (LEO) satellites (GRACE and MetOp satellites) with different orbital altitudes and corresponding ground-based observations, the ionospheric responses above and below the orbits are studied during the storm. To obtain VTEC from the slant TEC between Global Positioning System (GPS) and LEO satellites, we employ a multi-layer mapping function, which can effectively reduce the overall error caused by the single-layer geometric assumption where the horizontal gradient of the ionosphere is not considered. The results show that the topside observations of the GRACE satellite with a lower orbit can intuitively detect the impact caused by the fluctuation of the F2 peak height (hmF2). At the same time, the latitude range corresponding to the peak value of the up-looking VTEC on the event day becomes wider, which is the precursor of the Equatorial Ionization Anomaly (EIA). However, no obvious response is observed in the up-looking VTEC from MetOp satellites with higher orbits, which indicates that the VTEC responses to the geomagnetic storm mainly take place below the orbit of MetOp satellites. |
| Keyword | geomagnetic storm Ionosphere VTEC GRACE MetOp |
| Funding Organization | National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project |
| DOI | 10.3390/rs12142200 |
| WOS Keyword | MAPPING FUNCTION ; LOW-LATITUDE ; REGION ; MODEL ; MIDDLE ; CHINA |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC) Project[41761134092] ; Shanghai Leading Talent Project[E056061] |
| Funding Organization | National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project ; National Natural Science Foundation of China (NSFC) Project ; National Natural Science Foundation of China (NSFC) Project ; Shanghai Leading Talent Project ; Shanghai Leading Talent Project |
| WOS Research Area | Remote Sensing |
| WOS Subject | Remote Sensing |
| WOS ID | WOS:000558016800001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/82382 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Jin, Shuanggen |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Surveying Engn, Nanjing 210044, Peoples R China 4.Jiangsu Engn Ctr Collaborat Nav Positioning & Sma, Nanjing 210044, Jiangsu, Peoples R China |
| Recommended Citation GB/T 7714 | Gao, Chao,Jin, Shuanggen,Yuan, Liangliang. Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations[J]. REMOTE SENSING,2020,12(14):18. |
| APA | Gao, Chao,Jin, Shuanggen,&Yuan, Liangliang.(2020).Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations.REMOTE SENSING,12(14),18. |
| MLA | Gao, Chao,et al."Ionospheric Responses to the June 2015 Geomagnetic Storm from Ground and LEO GNSS Observations".REMOTE SENSING 12.14(2020):18. |
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