Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather
文献类型：期刊论文
| 作者 | Balan,N.2,3; Zhang,Qing-He3; Xing,Zanyang3; Skoug,R.6; Shiokawa,K.5; Lühr,H.4; Ram,S. Tulasi1; Otsuka,Y.5; Zhao,Lingxin3 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2019-12-10 |
| 卷号 | 887期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Space weather Geomagnetic fields Solar wind |
| DOI | 10.3847/1538-4357/ab5113 |
| 英文摘要 | Abstract The paper investigates the capability of geomagnetic storm parameters in the disturbance storm-time (Dst), Kp, and AE indices to distinguish between severe space weather (SvSW) that causes the reported electric power outages and/or telecommunication failures and normal space weather (NSW) that does not cause these severe effects in a 50 yr period (1958–2007). The parameters include the storm intensities DstMin (minimum Dst during the main phase, MP, of the storm), (dDst/dt)MPmax, Kpmax, and AEmax. In addition, the impulsive parameter is derived for the storms that are automatically identified in the Kyoto Dst and USGS is the integral of the modulus of the Dst from onset of the MP (MPO) to the DstMin. TMP is the MP duration from MPO to DstMin. The corresponding mean values and are also calculated. Regardless of the significant differences in the storm parameters between the two Dst indices, the IpsDst in both indices seems to identify four of the five SvSW events (and the Carrington event) in more than 750 NSW events that have been reported to have occurred in 1958–2007, while all other parameters separate one or two SvSWs from the NSWs. Using the Kyoto IpsDst threshold of ?250 nT, we demonstrate a 100% true SvSW identification rate with only one false NSW. Using the false NSW event (1972 August 4), we investigate whether using a higher resolution Dst might result in a more accurate identification of SvSWs. The mechanism of the impulsive action leading to large IpsDst and SvSW involves the coincidence that the fast interplanetary coronal mass ejection velocity V contains its shock (or front) velocity and large interplanetary magnetic field Bz southward covering . |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-887-1-AB5113 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/94048]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 作者单位 | 1.Indian Institute of Geomagnetism, Navi Mumbai, 410218, India 2.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, People’s Republic of China 3.Institute of Space Sciences, Shandong University, Weihai, Shandong 264209, People’s Republic of China; balan.nanan@yahoo.com 4.GFZ, German Research Centre for Geosciences, D-14473 Potsdam, Germany 5.Institute for Space-Earth Environmental Research, Nagoya University, Nagoya 464-8601, Japan 6.Los Alamos National Laboratory, Los Alamos, NM 87544, USA |
| 推荐引用方式 GB/T 7714 | Balan,N.,Zhang,Qing-He,Xing,Zanyang,et al. Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather[J]. The Astrophysical Journal,2019,887(1). |
| APA | Balan,N..,Zhang,Qing-He.,Xing,Zanyang.,Skoug,R..,Shiokawa,K..,...&Zhao,Lingxin.(2019).Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather.The Astrophysical Journal,887(1). |
| MLA | Balan,N.,et al."Capability of Geomagnetic Storm Parameters to Identify Severe Space Weather".The Astrophysical Journal 887.1(2019). |
入库方式： OAI收割
来源：地质与地球物理研究所
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