气候变化领域集成服务门户(CCPortal): Factors Controlling O+ and H+ Outflow in the Cusp During a Geomagnetic Storm: FAST/TEAMS Observations

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DOI	10.1029/2020GL086975
	Factors Controlling O+ and H+ Outflow in the Cusp During a Geomagnetic Storm: FAST/TEAMS Observations
	Zhao K.; Kistler L.M.; Lund E.J.; Nowrouzi N.; Kitamura N.; Strangeway R.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	Factors related to two sources of energy input to the ionosphere, the Poynting flux associated with both quasistatic fields (Sdc) and Alfvénic fluctuations (Sac), and the soft electron precipitation, are investigated to evaluate their correlations with the O+ and the H+ outflows in the dayside cusp region by using recalibrated FAST/Time-of-Flight Energy, Angle, and Mass Spectrograph (TEAMS) data during the 24–25 September 1998 geomagnetic storm studied by Strangeway et al. (2005, https://doi.org/10.1029/2004JA010829). The Poynting flux and the soft electron precipitation are well correlated with ion outflow flux in the dayside cusp region. Sdc shows the highest correlation with the O+ outflows, while it is the electron number flux that correlates best with the H+ outflows. The Alfvénic waves play an essential role in accelerating outflows. The averaged O+/H+ flux ratio is 3.0 and is positively correlated to the Poynting flux, suggesting that the O+ flux increases more strongly with the energy input. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ionosphere; Magnetosphere; Mass spectrometry; Storms; Electron number; Electron precipitation; Energy inputs; Geomagnetic storm; Ion outflow; Mass spectrographs; Poynting flux; Quasistatic field; Geomagnetism; calibration; correlation; electron; geomagnetic storm; hydrogen; outflow; oxygen
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170299
作者单位	Institute of Space Weather, Nanjing University of Information Science and Technology, Nanjing, China; Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH, United States; Department of Physics, University of New Hampshire, Durham, NH, United States; College Brook Scientific, Durham, NH, United States; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Zhao K.,Kistler L.M.,Lund E.J.,et al. Factors Controlling O+ and H+ Outflow in the Cusp During a Geomagnetic Storm: FAST/TEAMS Observations[J],2020,47(11).
APA	Zhao K.,Kistler L.M.,Lund E.J.,Nowrouzi N.,Kitamura N.,&Strangeway R.J..(2020).Factors Controlling O+ and H+ Outflow in the Cusp During a Geomagnetic Storm: FAST/TEAMS Observations.Geophysical Research Letters,47(11).
MLA	Zhao K.,et al."Factors Controlling O+ and H+ Outflow in the Cusp During a Geomagnetic Storm: FAST/TEAMS Observations".Geophysical Research Letters 47.11(2020).