Characterization of ULF pulsations by THEMIS

T. E. Sarris; W. Liu; K. Kabin; X. Li; S. R. Elkington; R. Ergun; R. Rankin; V. Angelopoulos; J. Bonnell; K. H. Glassmeier; U. Auster

doi:10.1029/2008GL036732

Characterization of ULF pulsations by THEMIS

T. E. Sarris
, W. Liu
, K. Kabin
, X. Li
, S. R. Elkington
, R. Ergun
, R. Rankin
, V. Angelopoulos
, J. Bonnell
, K. H. Glassmeier
, U. Auster

University of Colorado Boulder
Democritus University of Thrace
University of Alberta
University of California at Los Angeles
University of California at Berkeley
Technical University of Braunschweig

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

51 Scopus citations

Abstract

The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1R_E among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the magnetosphere. In the case study presented, electric and magnetic field fluctuations are identified as field line resonances and their modes of oscillation are discussed. Phase-difference calculations between probes allow estimates of the mode number of the fluctuations. These observations give an excellent source for the verification of model estimates of frequency and polarization of the various modes of field line resonances.

Original language	English
Article number	L04104
Journal	Geophysical Research Letters
Volume	36
Issue number	4
DOIs	https://doi.org/10.1029/2008GL036732
State	Published - 28 Feb 2009
Externally published	Yes

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10.1029/2008GL036732

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title = "Characterization of ULF pulsations by THEMIS",

abstract = "The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1RE among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the magnetosphere. In the case study presented, electric and magnetic field fluctuations are identified as field line resonances and their modes of oscillation are discussed. Phase-difference calculations between probes allow estimates of the mode number of the fluctuations. These observations give an excellent source for the verification of model estimates of frequency and polarization of the various modes of field line resonances.",

author = "Sarris, \{T. E.\} and W. Liu and K. Kabin and X. Li and Elkington, \{S. R.\} and R. Ergun and R. Rankin and V. Angelopoulos and J. Bonnell and Glassmeier, \{K. H.\} and U. Auster",

year = "2009",

month = feb,

day = "28",

doi = "10.1029/2008GL036732",

language = "英语",

volume = "36",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley and Sons Inc",

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TY - JOUR

T1 - Characterization of ULF pulsations by THEMIS

AU - Sarris, T. E.

AU - Liu, W.

AU - Kabin, K.

AU - Li, X.

AU - Elkington, S. R.

AU - Ergun, R.

AU - Rankin, R.

AU - Angelopoulos, V.

AU - Bonnell, J.

AU - Glassmeier, K. H.

AU - Auster, U.

PY - 2009/2/28

Y1 - 2009/2/28

N2 - The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1RE among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the magnetosphere. In the case study presented, electric and magnetic field fluctuations are identified as field line resonances and their modes of oscillation are discussed. Phase-difference calculations between probes allow estimates of the mode number of the fluctuations. These observations give an excellent source for the verification of model estimates of frequency and polarization of the various modes of field line resonances.

AB - The THEMIS five-probe constellation was launched in 17 February 2007 to study substorms; however its instrumentation and the alignment at distances <1RE among some of the THEMIS probes, particularly in the first period of its mission, provides unique opportunities to study ULF pulsations in the magnetosphere. In the case study presented, electric and magnetic field fluctuations are identified as field line resonances and their modes of oscillation are discussed. Phase-difference calculations between probes allow estimates of the mode number of the fluctuations. These observations give an excellent source for the verification of model estimates of frequency and polarization of the various modes of field line resonances.

UR - https://www.scopus.com/pages/publications/66149184628

U2 - 10.1029/2008GL036732

DO - 10.1029/2008GL036732

M3 - 文章

AN - SCOPUS:66149184628

SN - 0094-8276

VL - 36

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 4

M1 - L04104

ER -

Characterization of ULF pulsations by THEMIS

Abstract

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