GPS TEC Variation Affected by the Interhemispheric Conjugate Auroral Activity on 21 September 2009

• Main Authors: W. Suparta, M. A. Mohd. Ali, M. S. Jit Singh, B. Yatim, T. Motoba, N. Sato, A. Kadokura, G. Bjornsson
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2011
• Subjects: Auroral activity; GPS TEC; Interhemispheric conjugate points; Responses; Tjörnes; Husafell; Antarc*; Antarctica; Iceland
• Online Access: https://zenodo.org/record/1071132; https://doi.org/10.5281/zenodo.1071132

This paper observed the interhemispheric conjugate auroral activity occurred on 21 September 2009. The GPS derived ionospheric total electron content (TEC) during a weak substorm interval recorded at interhemispheric conjugate points at Husafell in Iceland and Syowa in Antarctica is investigated to look at their signatures on the auroral features. Selection of all-sky camera (ASC) images and keogram at Tjörnes and Syowa during the interval 00:47:54 – 00:50:14 UT on 21 September 2009 found that the auroral activity had exerted their influence on the GPS TEC as a consequence of varying interplanetary magnetic field (IMF) By polarity.