Incoherent scatter radar observations of spread-F producing ionospheric structures at arecibo

John David Mathews, R. M. Harper

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Range spreading type spread-F observed during the night of 7-8 January 1971 at Arecibo, Puerto Rico is shown to be associated with tilts in the ionosphere which occurred when a region of increased total electron content drifted by in a southerly direction. This conclusion is reached by using the incoherent scatter radar to measure electron densities, vertical and horizontal ion velocities, and total content. Also used for analysis of ionogram data is a spread-F intensity index and a method of applying the time development of spread-F to estimate the vertical and horizontal velocity of the reflector producing the spread-F trace. It is also suggested that frequency spreading at Arecibo is due for the most part to overlapping of four or more range spreading type ionogram traces having different critical frequencies since each trace comes from different regions of the ionosphere.

Original languageEnglish (US)
Pages (from-to)1119-1127
Number of pages9
JournalJournal of Atmospheric and Terrestrial Physics
Volume34
Issue number6
DOIs
StatePublished - Jan 1 1972

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spread F
incoherent scatter radar
radar tracking
ionospherics
ionosphere
radar
ionograms
tilt
electron density
ionospheres
Puerto Rico
critical frequencies
ion
night
reflectors
estimates
ions
electrons
method
index

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Geophysics
  • Atmospheric Science
  • Earth and Planetary Sciences(all)

Cite this

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abstract = "Range spreading type spread-F observed during the night of 7-8 January 1971 at Arecibo, Puerto Rico is shown to be associated with tilts in the ionosphere which occurred when a region of increased total electron content drifted by in a southerly direction. This conclusion is reached by using the incoherent scatter radar to measure electron densities, vertical and horizontal ion velocities, and total content. Also used for analysis of ionogram data is a spread-F intensity index and a method of applying the time development of spread-F to estimate the vertical and horizontal velocity of the reflector producing the spread-F trace. It is also suggested that frequency spreading at Arecibo is due for the most part to overlapping of four or more range spreading type ionogram traces having different critical frequencies since each trace comes from different regions of the ionosphere.",
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Incoherent scatter radar observations of spread-F producing ionospheric structures at arecibo. / Mathews, John David; Harper, R. M.

In: Journal of Atmospheric and Terrestrial Physics, Vol. 34, No. 6, 01.01.1972, p. 1119-1127.

Research output: Contribution to journalArticle

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