DOI: 10.1029/2018JA025380
Scopus记录号: 2-s2.0-85052462999
论文题名: Comparison of Dust Impact and Solitary Wave Signatures Detected by Multiple Electric Field Antennas Onboard the MMS Spacecraft
作者: Vaverka J. ; Nakamura T. ; Kero J. ; Mann I. ; De Spiegeleer A. ; Hamrin M. ; Norberg C. ; Lindqvist P.-A. ; Pellinen-Wannberg A.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期: 8 起始页码: 6119
结束页码: 6129
语种: 英语
英文关键词: dust
; dust impacts
; electric field instruments
; MMS
; solitary waves
英文摘要: Dust impact detection by electric field instruments is a relatively new method. However, the influence of dust impacts on electric field measurements is not completely understood and explained. A better understanding is very important for reliable dust impact identification, especially in environments with low dust impact rate. Using data from Earth-orbiting Magnetospheric Multiscale mission (MMS) spacecraft, we present a study of various pulses detected simultaneously by multiple electric field antennas in the monopole (probe-to-spacecraft potential measurement) and dipole (probe-to-probe potential measurement) configurations. The study includes data obtained during an impact of a millimeter-sized object. We show that the identification of dust impacts by a single antenna is a very challenging issue in environments where solitary waves are commonly present and that some pulses can be easily misinterpreted as dust impacts. We used data from multiple antennas to distinguish between changes in the spacecraft potential (dust impact) and structures in the ambient plasma or electric field. Our results indicate that an impact cloud is in some cases able to influence the potential of the electric field antenna during its expansion. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113392
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physics, Umeå University, Umeå, Sweden; National Institute of Polar Research, Tachikawa, Japan; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Swedish Institute of Space Physics, Kiruna, Sweden; The Arctic University of Norway, Tromsø, Norway; Royal Institute of Technology, Stockholm, Sweden
Recommended Citation:
Vaverka J.,Nakamura T.,Kero J.,et al. Comparison of Dust Impact and Solitary Wave Signatures Detected by Multiple Electric Field Antennas Onboard the MMS Spacecraft[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(8)