F-region electron density and Te / Ti measurements using incoherent scatter power data collected at ALTAIR

M. Milla, E. Kudeki

Research output: Contribution to journalArticlepeer-review

Abstract

The ALTAIR UHF radar was used in an incoherent scatter experiment to observe the low-latitude ionosphere during the Equis 2 rocket campaign. The measurements provided the first high-resolution electron density maps of the low-latitude D- and E-region in the Pacific sector and also extended into the F-region and topside ionosphere. Although the sampling frequency was well below the Nyquist frequency of F-region returns, we were able to estimate Te / Ti ratio and infer unbiased electron density estimates using a regularized inversion technique described here. The technique exploits magnetic aspect angle dependence of ISR cross-section for Te>Ti.

Original languageEnglish (US)
Pages (from-to)1333-1342
Number of pages10
JournalAnnales Geophysicae
Volume24
Issue number5
DOIs
StatePublished - 2006

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Geology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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