NDLI: Variations of ionospheric TEC at geomagnetic conjugate points during solar minimum

Content Provider	IEEE Xplore Digital Library
Author	Bahari, S.A. Abdullah, M. Yatim, B.
Copyright Year	2009
Description	Author affiliation: Institute of Space Science, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Selangor, Malaysia (Yatim, B.) \|\| Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Selangor, Malaysia (Bahari, S.A.; Abdullah, M.)
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 E°), and Árholt station (ARHO), Iceland (high Arctic region) (GC: 66.19° N, 342.89° E; CGM: 66.37°S, 71.48 E°) 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 conjugate points.
Starting Page	157
Ending Page	160
File Size	1050632
Page Count	4
File Format	PDF
ISBN	9781424449569
DOI	10.1109/ICONSPACE.2009.5352647
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-26
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geomagnetism User-generated content Geophysical measurements Predictive models Geomagnetic storms Magnetosphere Global Positioning System TEC Ionization Conjugate points Antarctica Arctic Ionosphere
Content Type	Text
Resource Type	Article

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