globalchange  > 气候减缓与适应
DOI: 10.1002/2018JA025234
Scopus记录号: 2-s2.0-85044870286
论文题名:
Large-Scale Structure of Subauroral Polarization Streams During the Main Phase of a Severe Geomagnetic Storm
作者: He F.; Zhang X.-X.; Wang W.; Liu L.; Ren Z.-P.; Yue X.; Hu L.; Wan W.; Wang H.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:4
起始页码: 2964
结束页码: 2973
语种: 英语
英文关键词: field-aligned currents ; geomagnetic storm ; midlatitude ionospheric trough ; SAPS
英文摘要: In this study, we present multisatellite observations of the large-scale structures of subauroral polarization streams (SAPS) during the main phase of a severe geomagnetic storm that occurred on 31 March 2001. Observations by the Defense Meteorological Satellite Program F12 to F15 satellites indicate that the SAPS were first generated around the dusk sector at the beginning of the main phase. The SAPS channel then expanded toward the midnight sector and moved to lower latitudes as the main phase progressed. The peak velocity, latitudinal width, latitudinal alignment, and longitudinal span of the SAPS channel were highly dynamic during the storm main phase. The large westward velocities of the SAPS were located in the region of low electron densities, associated with low ionospheric conductivity. The large-scale structures of the SAPS also corresponded closely to those of the region-2 field-aligned currents, which were mainly determined by the azimuthal pressure gradient of the ring current. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114105
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Institutions of Earth Science, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Space Weather, National Center for Space Weather, China Meteorological Administration, Beijing, China; High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, United States; Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Department of Space Physics, School of Electronic Information, Wuhan University, Wuhan, China

Recommended Citation:
He F.,Zhang X.-X.,Wang W.,et al. Large-Scale Structure of Subauroral Polarization Streams During the Main Phase of a Severe Geomagnetic Storm[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(4)
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