Effect of auroral electrojets and solar wind parameters on variations in the intensity of low-latitude geomagnetic disturbances and Dst during the extremely large magnetic storm of November 20-21, 2003
文献类型：期刊论文
| 作者 | Solovyev, S. I.1; Boroyev, R. N.1; Moiseyev, A. V.1; Du, A.2; Yumoto, K.3 |
| 刊名 | GEOMAGNETISM AND AERONOMY
 |
| 出版日期 | 2008-06-01 |
| 卷号 | 48期号:3页码:293-306 |
| ISSN号 | 0016-7932 |
| DOI | 10.1134/S0016793208030031 |
| 文献子类 | Article |
| 英文摘要 | The effect of auroral electrojets on the variations in the low-latitude geomagnetic disturbances and Dst during a strong magnetic storm of November 20-21, 2003, with Dst approximate to -472 nT has been studied based on the global magnetic observations. It has been indicated that the magnetospheric storm expansive phase with Delta t approximate to 1-2 h results in positive low-latitude disturbances (Delta H) of the same duration and with an amplitude of similar to 30-100 nT in the premidnight-dawn sector. A growth of negative low-latitude Delta H values and Dst is mainly caused by regular convection electrojets with Delta t >= 10 h, the centers of which shift to latitudes of similar to 50 degrees-55 degrees during the storm development. It has been established that the maximal low-latitude values of the field Delta H component at 1800-2400 MLT are observed when the auroral luminosity equatorward boundary shifts maximally southward during an increase in the negative values of the IMF B-z component. It has been assumed that, during this storm, a magnetic field depression at low latitudes was mainly caused by an enhancement of the partially-ring current which closes through field-aligned currents into the ionosphere at the equatorward boundary of the auroral luminosity zone. |
| WOS关键词 | MAGNETOSPHERIC SUBSTORMS ; CURRENT SYSTEM ; SATELLITE ; PRESSURE ; CURRENTS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000256776300003 |
| 出版者 | MAIK NAUKA/INTERPERIODICA/SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/69260]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Solovyev, S. I. |
| 作者单位 | 1.Russian Acad Sci, Siberian Branch, Shafer Inst Nosmophys Studies & Aeron, Yakutsk 677007, Russia 2.Inst Geol & Geophys, Beijing, Peoples R China 3.Kyushu Univ, Fukuoka 812, Japan |
| 推荐引用方式 GB/T 7714 | Solovyev, S. I.,Boroyev, R. N.,Moiseyev, A. V.,et al. Effect of auroral electrojets and solar wind parameters on variations in the intensity of low-latitude geomagnetic disturbances and Dst during the extremely large magnetic storm of November 20-21, 2003[J]. GEOMAGNETISM AND AERONOMY,2008,48(3):293-306. |
| APA | Solovyev, S. I.,Boroyev, R. N.,Moiseyev, A. V.,Du, A.,&Yumoto, K..(2008).Effect of auroral electrojets and solar wind parameters on variations in the intensity of low-latitude geomagnetic disturbances and Dst during the extremely large magnetic storm of November 20-21, 2003.GEOMAGNETISM AND AERONOMY,48(3),293-306. |
| MLA | Solovyev, S. I.,et al."Effect of auroral electrojets and solar wind parameters on variations in the intensity of low-latitude geomagnetic disturbances and Dst during the extremely large magnetic storm of November 20-21, 2003".GEOMAGNETISM AND AERONOMY 48.3(2008):293-306. |
入库方式： OAI收割
来源：地质与地球物理研究所
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