Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum

Siti Aminah Bahari, Mardina Abdullah, Baharudin Yatim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have studied the variations of TEC at quasi-conjugate points using data obtained from GPS receiver at Syowa station, Antarctica (SYOG) (GC: -69.00° S, 39.58° E; CGM: -66.08°S, 71.65 EO), and Arholt station (ARHO), Iceland (high Arctic region) (GC: 66.19° N, 342.89° E; CGM: 66.37°S, 71.48 EO) for a period in 2007, during the minimum phase of solar cycle 23. The GPS measurements of IGS and IMO network were used to create TEC maps. The time resolution of TEC maps is about 1 hour. The TEC maps show that the maximum TEC value over SYOG is at 1000 UT (1300 LT) while in ARHO is at 1300 UT (UT = LT). March 2007, when it was summer in the southern polar region, the TEC value over SYOG range was higher by 3 TECU than ARHO, which was experiencing winter during that time. This has proved the role of sun in the TEC distribution with photoionization process. The measurements of the TEC variation obtained from GPS during different months at both hemispheres showed symmetry in the median TEC at the conj ugate points.

Original languageEnglish
Title of host publication2009 International Conference on Space Science and Communication, IconSpace - Proceedings
Pages157-160
Number of pages4
DOIs
Publication statusPublished - 10 Dec 2009
Event2009 International Conference on Space Science and Communication, IconSpace - Port Dickson, Negeri Sembilan
Duration: 26 Oct 200927 Oct 2009

Other

Other2009 International Conference on Space Science and Communication, IconSpace
CityPort Dickson, Negeri Sembilan
Period26/10/0927/10/09

Fingerprint

Global positioning system
Antarctica
Iceland
Arctic
Values
Photoionization
recipient
Sun
time

Keywords

  • Conjugate points
  • Geomagnetic storms
  • TEC

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Communication

Cite this

Bahari, S. A., Abdullah, M., & Yatim, B. (2009). Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum. In 2009 International Conference on Space Science and Communication, IconSpace - Proceedings (pp. 157-160). [5352647] https://doi.org/10.1109/ICONSPACE.2009.5352647

Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum. / Bahari, Siti Aminah; Abdullah, Mardina; Yatim, Baharudin.

2009 International Conference on Space Science and Communication, IconSpace - Proceedings. 2009. p. 157-160 5352647.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bahari, SA, Abdullah, M & Yatim, B 2009, Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum. in 2009 International Conference on Space Science and Communication, IconSpace - Proceedings., 5352647, pp. 157-160, 2009 International Conference on Space Science and Communication, IconSpace, Port Dickson, Negeri Sembilan, 26/10/09. https://doi.org/10.1109/ICONSPACE.2009.5352647
Bahari SA, Abdullah M, Yatim B. Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum. In 2009 International Conference on Space Science and Communication, IconSpace - Proceedings. 2009. p. 157-160. 5352647 https://doi.org/10.1109/ICONSPACE.2009.5352647
Bahari, Siti Aminah ; Abdullah, Mardina ; Yatim, Baharudin. / Variations of Ionospheric TEC at geomagnetic conjugate points during solar minimum. 2009 International Conference on Space Science and Communication, IconSpace - Proceedings. 2009. pp. 157-160
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