| DOI: | 10.1002/grl.50947
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| 论文题名: | The K -derived MLT sector geomagnetic indices |
| 作者: | Chambodut A.; Marchaudon A.; Menvielle M.; El-Lemdani Mazouz F.; Lathuillére C.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8552
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| EISSN: | 1944-8283
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| 出版年: | 2013
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| 卷: | 40, 期:18 | | 起始页码: | 4808
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| 结束页码: | 4812
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| 语种: | 英语
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| 英文关键词: | geomagnetic indices
; MLT sector (Magnetic Local Time sector)
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| Scopus关键词: | Geomagnetic activities
; Geomagnetic indices
; Geomagnetic storm
; Magnetic local time
; Network stations
; Robust statistical analysis
; Statistical properties
; Statistical study
; Storms
; Geomagnetism
; data set
; geomagnetism
; statistical analysis
; storm
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| 英文摘要: | New subauroral K-derived sector indices are proposed. They are based on the K local geomagnetic activity indices from the planetary am network stations, and their derivation scheme draws directly from that of am indices. Four Magnetic Local Time (MLT) sectors are considered, leading to four different K-derived MLT sector indices: the aσDawn (03-09 MLT), aσNoon (09-15 MLT), aσDusk (15-21 MLT), and aσMidnight (21-03 MLT) indices. They cover more than four solar cycles and, thus, allow robust statistical analysis. Statistical studies of the whole aσ data series and case studies for two geomagnetic storms are presented. These analyses clearly show that the four aσ have specific behaviors and that it is possible to get insight into both the statistical properties of the physical processes responsible for the observed geomagnetic activity and contribution to the dynamics of a given storm. © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884255819&doi=10.1002%2fgrl.50947&partnerID=40&md5=f43bbc0915e2908534b86cc1aac80392
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5816
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Université de Strasbourg, CNRS, Institut de Physique du Globe de Strasbourg, 5 rue René Descartes, F-67084 Strasbourg Cedex, France
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| Recommended Citation: | |
Chambodut A.,Marchaudon A.,Menvielle M.,et al. The K -derived MLT sector geomagnetic indices[J]. Geophysical Research Letters,2013-01-01,40(18).
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