| Monitoring the global evolution of the storm ring current and storm indices from confined ground geomagnetic observatories | |
| Zeng, G.1; Shen, C.1; Rong, Z.J.2,3; Li, X.4; Chen, T.5; Chen, Z.Q.5; Ma, Y.H.1,6 | |
| Department | 空间科学部 |
| Source Publication | Journal of Atmospheric and Solar-Terrestrial Physics
 |
| 2019 | |
| Volume | 191 |
| DOI | 10.1016/j.jastp.2019.05.013 |
| ISSN | 1364-6826 |
| Language | 英语 |
| Abstract | For the first time, the global structure of the geomagnetic disturbance field around the Earth as well as the magnetic storm indices have been deduced from magnetic field measurements by ground observatories in a confined range of longitude. The spatial gradient of the H component of the geomagnetic disturbance field was obtained from ground geomagnetic observatories only in the Eastern Hemisphere, provided the geomagnetic disturbance field varies approximately linearly in space. Furthermore, the storm symmetric and asymmetric indices were derived and the spatial distribution and temporal evolution of the storm ring current was investigated. It was found that the storm indices derived from observatories in the Eastern Hemisphere are consistent with the officially published Kyoto standard indices which are derived from six globally distributed observatories. We also calculated the storm indices for 1941–1956 by using data from three observatories (HER, KAK and SJG). The correlation coefficient between the symmetric index deduced from three observatories and the one from the global six observatories is 0.98, and the correlation coefficient between the two kind of asymmetric indices is 0.79. Those results suggest that our approach is reasonable and significant when global ground observatories are not readily available. © 2019 Elsevier Ltd |
| Indexed By | SCI ; EI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/7067 |
| Collection | 空间科学部 |
| Affiliation | 1.School of Science, Harbin Institute of Technology, Shenzhen; 518055, China; 2.Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing; 100029, China; 3.Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing; 100029, China; 4.Laboratory for Atmosphere and Space Physics, University of Colorado, Boulder, United States; 5.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing; 100190, China; 6.Key Laboratory of Lunar and Deep Space Exploration, Chinese Academy of Sciences, Beijing, China |
| Recommended Citation GB/T 7714 | Zeng, G.,Shen, C.,Rong, Z.J.,et al. Monitoring the global evolution of the storm ring current and storm indices from confined ground geomagnetic observatories[J]. Journal of Atmospheric and Solar-Terrestrial Physics,2019,191. |
| APA | Zeng, G..,Shen, C..,Rong, Z.J..,Li, X..,Chen, T..,...&Ma, Y.H..(2019).Monitoring the global evolution of the storm ring current and storm indices from confined ground geomagnetic observatories.Journal of Atmospheric and Solar-Terrestrial Physics,191. |
| MLA | Zeng, G.,et al."Monitoring the global evolution of the storm ring current and storm indices from confined ground geomagnetic observatories".Journal of Atmospheric and Solar-Terrestrial Physics 191(2019). |
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| 2019S136468261830696（4523KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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