Generation of large sheet-like ionospheric plasma irregularities at Arecibo

M. C. Lee, R. J. Riddolls, W. J. Burke, M. P. Sulzer, S. P. Kuo, E. M.C. Klien

Research output: Contribution to journalArticlepeer-review

Abstract

Large-scale ionospheric plasma irregularities, generated by O-mode heater waves at Arecibo, are shown for the first time to have "sheet-like" structures. The irregularities are aligned with the magnetic meridional plane and have scale sizes ranging from a few hundred meters to a few kilometers. This interpretation is based on detailed considerations of sequential measurements of radar baekscatter power, the controlling magnetic field geometry, and the deduced E × B plasma drift. The alignment of O-mode-generatcd irregularities with the magnetic meridional plane, and their disappearance during X-mode heating intervals are consistent with predictions of the thermal filamentation instability model.

Original languageEnglish (US)
Pages (from-to)3067-3070
Number of pages4
JournalGeophysical Research Letters
Volume25
Issue number16
DOIs
StatePublished - Aug 15 1998

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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