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  4. 中国科学院地球与行星物理重点实验室
Curlometer Technique and Applications

文献类型：期刊论文

作者Dunlop, M. W.2,3,4; Dong, X. C.3; Wang, T. Y.3; Eastwood, J. P.4; Robert, P.5; Haaland, S.6,7,8; Yang, Y. Y.9; Escoubet, P.10; Rong, Z. J.11; Shen, C.12
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2021-11-01
卷号126期号:11页码:29
ISSN号2169-9380
关键词multi-spacecraft analysis methods magnetosphere
DOI10.1029/2021JA029538
英文摘要We review the range of applications and use of the curlometer, initially developed to analyze Cluster multi-spacecraft magnetic field data; but more recently adapted to other arrays of spacecraft flying in formation, such as MMS small-scale, 4-spacecraft configurations; THEMIS close constellations of 3-5 spacecraft, and Swarm 2-3 spacecraft configurations. Although magnetic gradients require knowledge of spacecraft separations and the magnetic field, the structure of the electric current density (for example, its relative spatial scale), and any temporal evolution, limits measurement accuracy. Nevertheless, in many magnetospheric regions the curlometer is reliable (within certain limits), particularly under conditions of time stationarity, or with supporting information on morphology (for example, when the geometry of the large scale structure is expected). A number of large-scale regions have been covered, such as: the cross-tail current sheet, ring current, the current layer at the magnetopause and field-aligned currents. Transient and smaller scale current structures (e.g., reconnected flux tube or dipolarisation fronts) and energy transfer processes. The method is able to provide estimates of single components of the vector current density, even if there are only two or three satellites flying in formation, within the current region, as can be the case when there is a highly irregular spacecraft configuration. The computation of magnetic field gradients and topology in general includes magnetic rotation analysis and various least squares approaches, as well as the curlometer, and indeed the added inclusion of plasma measurements and the extension to larger arrays of spacecraft have recently been considered.
WOS关键词FIELD-ALIGNED CURRENTS ; FLUX-TRANSFER EVENTS ; BURSTY BULK FLOWS ; MAGNETIC-FIELD ; CLUSTER OBSERVATIONS ; RING CURRENT ; MAGNETOPAUSE CURRENT ; DIFFUSION REGION ; MMS OBSERVATIONS ; CURRENT SHEETS
资助项目NSFC[41821003] ; NSFC[41874193] ; NERC Highlight Topic SWIGS grant[NE/P016863/1] ; STFC[ST/M001083/1] ; STFC[ST/S000364/1]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000723106200014
资助机构NSFC ; NSFC ; NERC Highlight Topic SWIGS grant ; NERC Highlight Topic SWIGS grant ; STFC ; STFC ; NSFC ; NSFC ; NERC Highlight Topic SWIGS grant ; NERC Highlight Topic SWIGS grant ; STFC ; STFC ; NSFC ; NSFC ; NERC Highlight Topic SWIGS grant ; NERC Highlight Topic SWIGS grant ; STFC ; STFC ; NSFC ; NSFC ; NERC Highlight Topic SWIGS grant ; NERC Highlight Topic SWIGS grant ; STFC ; STFC
源URL[http://ir.iggcas.ac.cn/handle/132A11/103861]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Dunlop, M. W.
作者单位1.Royal Belgian Inst Space Aeron, Brussels, Belgium
2.Beihang Univ, Sch Space & Environm, Beijing, Peoples R China
3.RAL, Didcot, Oxon, England
4.Imperial Coll London, Space & Atmospher Phys, London, England
5.Ecole Polytech, Lab Phys Plasmas, Palaiseau, France
6.Univ Bergen, Birkeland Ctr Space Sci, Bergen, Norway
7.Univ Ctr Svalbard, Longyearbyen, Svalbard
8.Max Planck Inst Solar Syst Res, Gottingen, Germany
9.CEA, Geophys & Space Phys ICD, Beijing, Peoples R China
10.ESA ESTEC AG, Noordwijk, Netherlands
推荐引用方式
GB/T 7714		 Dunlop, M. W.,Dong, X. C.,Wang, T. Y.,et al. Curlometer Technique and Applications[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2021,126(11):29.
APA Dunlop, M. W..,Dong, X. C..,Wang, T. Y..,Eastwood, J. P..,Robert, P..,...&De Keyser, J..(2021).Curlometer Technique and Applications.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,126(11),29.
MLA Dunlop, M. W.,et al."Curlometer Technique and Applications".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126.11(2021):29.

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来源：地质与地球物理研究所

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