Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements

A. Runov; V. A. Sergeev; R. Nakamura; W. Baumjohann; T. L. Zhang; Y. Asano; M. Volwerk; Z. Vörös; A. Balogh; H. R̀me

doi:10.1016/j.pss.2004.09.049

Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements

A. Runov^*
, V. A. Sergeev
, R. Nakamura
, W. Baumjohann
, T. L. Zhang
, Y. Asano
, M. Volwerk
, Z. Vörös
, A. Balogh
, H. R̀me

^*Corresponding author for this work

Austrian Academy of Sciences
St. Petersburg State University
Max Planck Institute for Extraterrestrial Physics
Imperial College London
Université de Toulouse

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

In this paper we analyze the vertical structure of the magnetotail current sheet for a few intervals during which Cluster repeatedly crosses the neutral sheet due to fast flapping motion. They include fast flows with episodes of flow reversals. The curl, gradient and divergence of the magnetic field are estimated using linear gradient/curl estimator techniques. The reconstruction of the electric current and magnetic field profiles are performed by integration of the estimated gradient scales. We found examples of thin current sheets, (half-thickness of 1000 km) with the current density maximum at the magnetic equator (B_x = 0), as well as examples of off-center or bifurcated current sheets.

Original language	English
Pages (from-to)	237-243
Number of pages	7
Journal	Planetary and Space Science
Volume	53
Issue number	1-3
DOIs	https://doi.org/10.1016/j.pss.2004.09.049
State	Published - 2005
Externally published	Yes

Keywords

Bursty bulk flow
Current sheet
Magnetospheric tail
Neutral sheet

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10.1016/j.pss.2004.09.049

Cite this

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title = "Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements",

abstract = "In this paper we analyze the vertical structure of the magnetotail current sheet for a few intervals during which Cluster repeatedly crosses the neutral sheet due to fast flapping motion. They include fast flows with episodes of flow reversals. The curl, gradient and divergence of the magnetic field are estimated using linear gradient/curl estimator techniques. The reconstruction of the electric current and magnetic field profiles are performed by integration of the estimated gradient scales. We found examples of thin current sheets, (half-thickness of 1000 km) with the current density maximum at the magnetic equator (Bx = 0), as well as examples of off-center or bifurcated current sheets.",

keywords = "Bursty bulk flow, Current sheet, Magnetospheric tail, Neutral sheet",

author = "A. Runov and Sergeev, \{V. A.\} and R. Nakamura and W. Baumjohann and Zhang, \{T. L.\} and Y. Asano and M. Volwerk and Z. V{\"o}r{\"o}s and A. Balogh and H. {\`R}me",

year = "2005",

doi = "10.1016/j.pss.2004.09.049",

language = "英语",

volume = "53",

pages = "237--243",

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TY - JOUR

T1 - Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements

AU - Runov, A.

AU - Sergeev, V. A.

AU - Nakamura, R.

AU - Baumjohann, W.

AU - Zhang, T. L.

AU - Asano, Y.

AU - Volwerk, M.

AU - Vörös, Z.

AU - Balogh, A.

AU - R̀me, H.

PY - 2005

Y1 - 2005

N2 - In this paper we analyze the vertical structure of the magnetotail current sheet for a few intervals during which Cluster repeatedly crosses the neutral sheet due to fast flapping motion. They include fast flows with episodes of flow reversals. The curl, gradient and divergence of the magnetic field are estimated using linear gradient/curl estimator techniques. The reconstruction of the electric current and magnetic field profiles are performed by integration of the estimated gradient scales. We found examples of thin current sheets, (half-thickness of 1000 km) with the current density maximum at the magnetic equator (Bx = 0), as well as examples of off-center or bifurcated current sheets.

AB - In this paper we analyze the vertical structure of the magnetotail current sheet for a few intervals during which Cluster repeatedly crosses the neutral sheet due to fast flapping motion. They include fast flows with episodes of flow reversals. The curl, gradient and divergence of the magnetic field are estimated using linear gradient/curl estimator techniques. The reconstruction of the electric current and magnetic field profiles are performed by integration of the estimated gradient scales. We found examples of thin current sheets, (half-thickness of 1000 km) with the current density maximum at the magnetic equator (Bx = 0), as well as examples of off-center or bifurcated current sheets.

KW - Bursty bulk flow

KW - Current sheet

KW - Magnetospheric tail

KW - Neutral sheet

UR - https://www.scopus.com/pages/publications/19944428522

U2 - 10.1016/j.pss.2004.09.049

DO - 10.1016/j.pss.2004.09.049

M3 - 文章

AN - SCOPUS:19944428522

SN - 0032-0633

VL - 53

SP - 237

EP - 243

JO - Planetary and Space Science

JF - Planetary and Space Science

IS - 1-3

ER -

Reconstruction of the magnetotail current sheet structure using multi-point Cluster measurements

Abstract

Keywords

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