Observations of large electric fields near the plasmasheet boundary by ISEE‐1

C. A. Cattell, M. Kim, R. P. Lin, F. S. Mozer

Research output: Contribution to journalArticle

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Abstract

We report the first observations of large electric field spikes (up to ∼ 80 mV/m) at distances of 7 ‐ 23 RE. Almost all of these spikes are detected within one minute of encountering the high latitude plasmasheet boundary, as identified by energetic particle detectors. These strong electric fields occur in regions of enhanced low frequency turbulence and in regions of field‐aligned current flow. Individual electric field spikes are well‐correlated with small‐scale gradients in particle fluxes and small‐scale currents. If these high altitude events are mappings of the low altitude electrostatic shocks, these data provide evidence that poleward auroral field lines map to the boundary of the plasmasheet.

Original languageEnglish (US)
Pages (from-to)539-542
Number of pages4
JournalGeophysical Research Letters
Volume9
Issue number5
DOIs
StatePublished - Jan 1 1982

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spikes
electric field
electric fields
radiation counters
low altitude
high altitude
energetic particles
flux (rate)
polar regions
energetics
turbulence
shock
electrostatics
low frequencies
gradients
particle

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Observations of large electric fields near the plasmasheet boundary by ISEE‐1. / Cattell, C. A.; Kim, M.; Lin, R. P.; Mozer, F. S.

In: Geophysical Research Letters, Vol. 9, No. 5, 01.01.1982, p. 539-542.

Research output: Contribution to journalArticle

Cattell, C. A. ; Kim, M. ; Lin, R. P. ; Mozer, F. S. / Observations of large electric fields near the plasmasheet boundary by ISEE‐1. In: Geophysical Research Letters. 1982 ; Vol. 9, No. 5. pp. 539-542.
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