Study of high-latitude ionosphere: One-year campaign over Husafell, Iceland

S. A. Bahari, Mardina Abdullah, Alina Marie Hasbi, Baharudin Yatim, Wayan Suparta, A. Kadokura, G. Bjornsson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper reports on the effects of diurnal, seasonal, geomagnetic and solar activity on GPS Vertical Total Electron Content (VTEC) measurements at a high-latitude station in Husafell, Iceland (64.7°N, 21.0°W) from March 2009 to February 2010. According to the diurnal VTEC pattern, there was generally a build-up region at sunrise (0500-1000 LT), a daytime plateau in the afternoon (1200-1400 LT), and a decay region from evening to pre-dawn (1800-0400 LT). The month-to-month analysis showed high VTEC variability, particularly in February 2010, due to an increase in solar activity. The VTEC showed a high variability during both winter and the equinoxes, with the highest value being 90%, but showed a low variability in summer. Two abnormal peaks appeared at sunrise and sunset in winter and the equinoxes. These peaks were the result of steep density gradients caused by the onset and turnoff of solar radiation. The correlation analysis yielded almost no correlation between the VTEC and geomagnetic activity but showed a high correlation with solar activity for all the seasons, particularly at night-time.

Original languageEnglish
Pages (from-to)45-52
Number of pages8
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume145
DOIs
Publication statusPublished - 1 Jul 2016

Fingerprint

Iceland
polar regions
ionospheres
ionosphere
solar activity
equinoxes
sunrise
electrons
winter
sunset
evening
daytime
solar radiation
night
summer
plateaus
GPS
stations
total electron content
plateau

Keywords

  • Diurnal
  • GPS
  • High latitude
  • Seasonal
  • TEC

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science
  • Atmospheric Science

Cite this

Study of high-latitude ionosphere : One-year campaign over Husafell, Iceland. / Bahari, S. A.; Abdullah, Mardina; Hasbi, Alina Marie; Yatim, Baharudin; Suparta, Wayan; Kadokura, A.; Bjornsson, G.

In: Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 145, 01.07.2016, p. 45-52.

Research output: Contribution to journalArticle

Bahari, S. A. ; Abdullah, Mardina ; Hasbi, Alina Marie ; Yatim, Baharudin ; Suparta, Wayan ; Kadokura, A. ; Bjornsson, G. / Study of high-latitude ionosphere : One-year campaign over Husafell, Iceland. In: Journal of Atmospheric and Solar-Terrestrial Physics. 2016 ; Vol. 145. pp. 45-52.
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