气候变化领域集成服务门户(CCPortal): The Cusp as a VLF Saucer Source: First Rocket Observations of Long-Duration VLF Saucers on the Dayside

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DOI	10.1029/2020GL090747
	The Cusp as a VLF Saucer Source: First Rocket Observations of Long-Duration VLF Saucers on the Dayside
	Moser C.; LaBelle J.; Hatch S.; Moen J.I.; Spicher A.; Takahashi T.; Kletzing C.A.; Bounds S.; Oksavik K.; Sigernes F.; Yeoman T.K.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	Auroral whistler-mode radio emissions called saucers are of fundamental interest because they require an unusually stationary emission process in the dynamic auroral environment, and it is a mystery how that can happen in this or similar conditions elsewhere in geospace. The Cusp Alfvén and Plasma Electrodynamics Rocket (CAPER-2), launched into the cusp, obtained the first rocket measurements of a large-scale, multiple-armed dayside saucer, similar to those observed by the DEMETER satellite, with the addition of particle measurements and ground-based measurements. Analysis of saucer shapes, directional measurements using waveforms, and ground-based data show that, accounting for estimated uncertainties, these originate at altitudes ∼4,000 km within the cusp, the eastern side of which is penetrated by the rocket ∼100 s after the saucers are encountered. On-board particle instruments show dispersed electron bursts in the cusp, Alfvénically accelerated at altitudes at or above the saucer sources. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospherics; Electromagnetic fields; Rockets; DEMETER satellites; Directional measurement; Ground based measurement; Ground-based data; Particle measurement; Plasma electrodynamics; Rocket measurements; Stationary emissions; Uncertainty analysis; Hesperis
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/169204
作者单位	Department of Physics and Astronomy, Dartmouth College, Hanover, NH, United States; Department of Physics and Technology, Birkeland Centre for Space Science, University of Bergen, Bergen, Norway; Department of Physics, University of Oslo, Oslo, Norway; Department of Arctic Geophysics, University Centre in Svalbard, Longyearbyen, Norway; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Physics and Astronomy, University of Leicester, Leicester, United Kingdom
推荐引用方式 GB/T 7714	Moser C.,LaBelle J.,Hatch S.,et al. The Cusp as a VLF Saucer Source: First Rocket Observations of Long-Duration VLF Saucers on the Dayside[J],2021,48(2).
APA	Moser C..,LaBelle J..,Hatch S..,Moen J.I..,Spicher A..,...&Yeoman T.K..(2021).The Cusp as a VLF Saucer Source: First Rocket Observations of Long-Duration VLF Saucers on the Dayside.Geophysical Research Letters,48(2).
MLA	Moser C.,et al."The Cusp as a VLF Saucer Source: First Rocket Observations of Long-Duration VLF Saucers on the Dayside".Geophysical Research Letters 48.2(2021).