The angular distribution of auroral kilometric radiation observed by the GEOTAIL spacecraft

Yasumasa Kasaba, H. Matsumoto, K. Hashimoto, R. R. Anderson

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We examine the angular distribution of auroral kilometric radiation (AKR) based on a 38-month data set of GEOTAIL plasma wave observations. We show that the AKR illumination pattern becomes narrower with increasing frequency above 300 kHz. The difference is more evident in the duskside zone and when geomagnetic conditions become more disturbed. We also show that AKR is more active on the winter hemisphere especially for the higher frequency range.

Original languageEnglish
Article number97GL02599
Pages (from-to)2483-2486
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number20
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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