气候变化领域集成服务门户(CCPortal): A New Method of 3-D Magnetic Field Reconstruction

CCPortal

DOI	10.1029/2019GL085542
	A New Method of 3-D Magnetic Field Reconstruction
	Torbert R.B.; Dors I.; Argall M.R.; Genestreti K.J.; Burch J.L.; Farrugia C.J.; Forbes T.G.; Giles B.L.; Strangeway R.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	A method is described to model the magnetic field in the vicinity of three-dimensional constellations of satellites (at least four) using field and plasma current measurements. This quadratic model matches the measured values of the magnetic field and its curl (current) at each spacecraft, with ∇ • B zero everywhere, and thus extends the linear curlometer method to second order. Near the spacecraft, it predicts the topology of magnetic structures, such as reconnecting regions or flux ropes, and allows a tracking of the motion of these structures relative to the spacecraft constellation. Comparisons to particle-in-cell simulations estimate the model accuracy. Reconstruction of two electron diffusion regions definitively confirms the expected field line structure. The model can be applied to other small-scale phenomena (e.g., bow shocks) and can also be modified to reconstruct the electric field, allowing tracing of particle trajectories. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electric fields; Image reconstruction; Magnetic fields; Motion tracking; Plasma simulation; Topology; Magnetic models; Magnetic topologies; Particle trajectories; Particle-in-cell simulations; Plasma current measurements; Small-scale phenomena; Spacecraft constellations; Three-dimensional constellations; Magnetoplasma; accuracy assessment; field method; magnetic field; measurement method; satellite constellation; spacecraft; three-dimensional modeling; topology; visualization
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/170744
作者单位	Physics Department, University of New Hampshire, Durham, NH, United States; Southwest Research Institute, San Antonio, TX, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Torbert R.B.,Dors I.,Argall M.R.,et al. A New Method of 3-D Magnetic Field Reconstruction[J],2020,47(3).
APA	Torbert R.B..,Dors I..,Argall M.R..,Genestreti K.J..,Burch J.L..,...&Strangeway R.J..(2020).A New Method of 3-D Magnetic Field Reconstruction.Geophysical Research Letters,47(3).
MLA	Torbert R.B.,et al."A New Method of 3-D Magnetic Field Reconstruction".Geophysical Research Letters 47.3(2020).