Relation between Pi 2 magnetic pulsations at L=1.3-2.1 and dipolarizations at AMPTE/CCE

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概要

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• In order to investigate relations between low-latitude Pi 1-2 pulsations on the ground and substorm-associated variations in space, we analyzed magnetic data from the conjugate area of L=1.3-2.1 and λ〜140°E, and from AMPTE/CCE in the midnight sector during August 9 to September 4,1986. From the correlation analysis, most of low-latitude Pi pulsations are found to occur within +1 to -2 min of the onsets of substorm-associated dipolarizations at geocentric distances of 8-9 R_E in the magnetotail. The dipolarizations appear to be localized in the magnetotail, because the orbiting spacecraft often cannot detect a dipolarization corresponding to an obvious Pi 2 on the grouud.

• 国立極地研究所の論文

著者

• Yumoto Kiyohumi

  Research Institute Of Atmospherics Nagoya University

• Takahashi Kazue

  Applied Physics Laboratory, The Johns Hopkins University

• Takahashi Kazue

  Applied Physics Laboratory The Johns Hopkins University

関連論文

• Low-latitude Pi 1-2 magnetic pulsations of the August 28, 1986 substorm event
• Relation between Pi 2 magnetic pulsations at L=1.3-2.1 and dipolarizations at AMPTE/CCE
• Low latitude aurorae on October 21, 1989. I.

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