Acta Geodaetica et Cartographica Sinica

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Spatial Distribution of Antarctic Ionosphere TEC based on GPS

  

  • Received:2009-11-26 Revised:2010-04-22 Online:2011-02-25 Published:2011-02-25

Abstract: Using the GPS observations from perennial GPS station in Chinese Zhongshan Station and IGS (International GNSS Service) station in the Antarctic region, the high accurate ionosphere TECs is calculated in polar area during 2000~2006, TECs above GPS stations located in polar cap, polar cap edge, in and out of auroral zone are comparatively analyzed. The results show that, the daily maximum TECs in the auroral zone are smaller than outer, larger than TECs in the polar cap, but this difference isn’t obvious on minimum daily TECs. This spatial distribution is related to different place has different solar incident angle and special configurations of geomagnetic filed in high latitude regions.