The response of TEC at quasi-conjugate point GPS stations during solar flares

Siti Aminah Bahari, Mardina Abdullah, Baharudin Yatim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Global Positioning System (GPS) derived total electron content (TEC) measurements were analyzed to investigate the ionospheric response during the X-class solar flare event that occurred on 5-6 December 2006 at geomagnetic conjugate stations: Syowa, Antarctica (SYOG) (GC: 69.00°S, 39.58°E; CGM: 66.08°S, 71.65°E) and Árholt, Iceland (ARHO) (GC: 66.19°N, 342.89°E; CGM: 66.37°N, 71.48°E). Bernese GPS software was used to derive the TEC maps for both stations. The focus of this study is to determine the symmetry or asymmetry of TEC values which is an important parameter in the ionosphere at conjugate stations during these solar flare events. The results showed that during the first flares on 5 December, effects were more pronounced at SYOG than at ARHO. However, on 6 December, the TEC at ARHO showed a sudden spike during the flare with a different TEC variation at SYOG.

Original languageEnglish
Pages (from-to)407-427
Number of pages21
JournalActa Geophysica
Volume59
Issue number2
DOIs
Publication statusPublished - 2011

Fingerprint

conjugate points
Global Positioning System
solar flares
GPS
stations
Iceland
electrons
flares
Antarctic regions
spikes
ionospherics
ionospheres
symmetry
ionosphere
asymmetry
total electron content
station
computer programs
software

Keywords

  • conjugate points
  • GPS
  • solar flare
  • total electron content

ASJC Scopus subject areas

  • Geophysics

Cite this

The response of TEC at quasi-conjugate point GPS stations during solar flares. / Bahari, Siti Aminah; Abdullah, Mardina; Yatim, Baharudin.

In: Acta Geophysica, Vol. 59, No. 2, 2011, p. 407-427.

Research output: Contribution to journalArticle

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abstract = "Global Positioning System (GPS) derived total electron content (TEC) measurements were analyzed to investigate the ionospheric response during the X-class solar flare event that occurred on 5-6 December 2006 at geomagnetic conjugate stations: Syowa, Antarctica (SYOG) (GC: 69.00°S, 39.58°E; CGM: 66.08°S, 71.65°E) and {\'A}rholt, Iceland (ARHO) (GC: 66.19°N, 342.89°E; CGM: 66.37°N, 71.48°E). Bernese GPS software was used to derive the TEC maps for both stations. The focus of this study is to determine the symmetry or asymmetry of TEC values which is an important parameter in the ionosphere at conjugate stations during these solar flare events. The results showed that during the first flares on 5 December, effects were more pronounced at SYOG than at ARHO. However, on 6 December, the TEC at ARHO showed a sudden spike during the flare with a different TEC variation at SYOG.",
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