PHAZE II observations of lower hybrid burst structures occurring on density gradients

PHAZE II sounding rocket observations of VLF waves and plasma density measurements made with a HF wave instrument rather than a fixed bias Langmuir probe show conclusively that the observed lower hybrid solitary structures (LHSS) are associated with density fluctuations. LHSS occur on the positive a...

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Veröffentlicht in:	Geophysical research letters 1998-08, Vol.25 (16), p.3091-3094
Hauptverfasser:	McAdams, K. L., LaBelle, J., Schuck, P. W., Kintner, P. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Airglow. Aurora Earth, ocean, space Exact sciences and technology External geophysics Physics of the high neutral atmosphere
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container_end_page	3094
container_issue	16
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container_title	Geophysical research letters
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creator	McAdams, K. L. LaBelle, J. Schuck, P. W. Kintner, P. M.
description	PHAZE II sounding rocket observations of VLF waves and plasma density measurements made with a HF wave instrument rather than a fixed bias Langmuir probe show conclusively that the observed lower hybrid solitary structures (LHSS) are associated with density fluctuations. LHSS occur on the positive and negative gradients of plasma density fluctuations of 25–50%. These findings lend support to theories of ambient lower hybrid waves exciting resonances created by pre‐existing density gradients rather than wave collapse or refraction mechanisms; the issue of how the gradients are created is still unresolved.
doi_str_mv	10.1029/98GL02424
format	Article
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source	Wiley Free Content; Wiley-Blackwell AGU Digital Library; Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects	Airglow. Aurora Earth, ocean, space Exact sciences and technology External geophysics Physics of the high neutral atmosphere
title	PHAZE II observations of lower hybrid burst structures occurring on density gradients
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