globalchange  > 气候减缓与适应
DOI: 10.1029/2018JA025505
Scopus记录号: 2-s2.0-85052403151
论文题名:
EMIC Wave Events During the Four GEM QARBM Challenge Intervals
作者: Engebretson M.J.; Posch J.L.; Braun D.J.; Li W.; Ma Q.; Kellerman A.C.; Huang C.-L.; Kanekal S.G.; Kletzing C.A.; Wygant J.R.; Spence H.E.; Baker D.N.; Fennell J.F.; Angelopoulos V.; Singer H.J.; Lessard M.R.; Horne R.B.; Raita T.; Shiokawa K.; Rakhmatulin R.; Dmitriev E.; Ermakova E.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:8
起始页码: 6394
结束页码: 6423
语种: 英语
英文摘要: This paper presents observations of electromagnetic ion cyclotron (EMIC) waves from multiple data sources during the four Geospace Environment Modeling challenge events in 2013 selected by the Geospace Environment Modeling Quantitative Assessment of Radiation Belt Modeling focus group: 17 and 18 March (stormtime enhancement), 31 May to 2 June (stormtime dropout), 19 and 20 September (nonstorm enhancement), and 23–25 September (nonstorm dropout). Observations include EMIC wave data from the Van Allen Probes, Geostationary Operational Environmental Satellite, and Time History of Events and Macroscale Interactions during Substorms spacecraft in the near-equatorial magnetosphere and from several arrays of ground-based search coil magnetometers worldwide, as well as localized ring current proton precipitation data from low-altitude Polar Operational Environmental Satellite spacecraft. Each of these data sets provides only limited spatial coverage, but their combination shows consistent occurrence patterns and reveals some events that would not be identified as significant using near-equatorial spacecraft alone. Relativistic and ultrarelativistic electron flux observations, phase space density data, and pitch angle distributions based on data from the Relativistic Electron-Proton Telescope and Magnetic Electron Ion Spectrometer instruments on the Van Allen Probes during these events show two cases during which EMIC waves are likely to have played an important role in causing major flux dropouts of ultrarelativistic electrons, particularly near L* ~4.0. In three other cases, identifiable smaller and more short-lived dropouts appeared, and in five other cases, these waves evidently had little or no effect. ©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/113328
Appears in Collections:气候减缓与适应

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作者单位: Department of Physics, Augsburg University, Minneapolis, MN, United States; Center for Space Physics, Boston University, Boston, MA, United States; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States; Institute for the Study of the Earth, Oceans, and Space, University of New Hampshire, Durham, NH, United States; NASA/Goddard Space Flight Center, Greenbelt, MD, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; The Aerospace Corporation, Los Angeles, CA, United States; NOAA Space Weather Prediction Center, Boulder, CO, United States; British Antarctic Survey, Cambridge, United Kingdom; Sodankylä Geophysical Observatory, Sodankylä, Finland; Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan; Institute of Solar-Terrestrial Physics, Irkutsk, Russian Federation; Borok Geophysical Observatory, Borok, Russian Federation; Radiophysical Research Institute, Lobachevsky State University, Nizhny Novgorod, Russian Federation

Recommended Citation:
Engebretson M.J.,Posch J.L.,Braun D.J.,et al. EMIC Wave Events During the Four GEM QARBM Challenge Intervals[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(8)
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