The ROCSAT-1 IPEI preliminary results: Low-latitude ionospheric plasma and flow variations

Shin Yi Su, Huey Ching Yeh, Roderick A. Heelis, Jing Mei Wu, Shu Chih Yang, Li Fan Lee, Hsin Liang Chen

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The IPEI payload onboard ROCSAT-1 has observed many well-known low-latitude ionospheric phenomena at 600 km altitude, such, as the diurnal variations of ion density, composition and temperature. The equatorial spread F events, such as bubbles and blobs, together with the flow variations are also recorded with an unprecedented high time resolution at a sampling rate of 1024 Hz. The satellite-borne data on power spectral density of the equatorial spread F event on the transitional scale (10 - 100 m) is presented here for the first time. The local-time and longitudinal variations of the vertical drift velocity in the dawn sector indicated strong hemispheric asymmetry.

Original languageEnglish
Pages (from-to)787-804
Number of pages18
JournalTerrestrial, Atmospheric and Oceanic Sciences
Volume10
Issue number4
DOIs
StatePublished - Dec 1999

Keywords

  • IPEI
  • Low-latitude Ionosphere
  • ROCSAT-1

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