Irregularities of ionospheric VTEC during lightning activity over Antarctic Peninsula

2017 International Conference on Space Science and Communication

物理学;无线电电子学

Suparta, W.^1 ; Wan Mohd Nor, W.N.A.^1

Space Science Centre (ANGKASA), Institute of Climate Change, Universiti Kebangsaan Malaysia, Bangi, Selangor Darul Ehsan

43600, Malaysia^1

关键词: Antarctic Peninsula;    Lightning activity;    Lightning datum;    Lightning discharge;    Lightning location;    Radio signals;    Vertical total electron contents;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/852/1/012017/pdf
DOI  :  10.1088/1742-6596/852/1/012017

来源: IOP

【 摘 要 】

This paper investigates the irregularities of vertical total electron content (VTEC) during lightning activity and geomagnetic quiet days over Antarctic Peninsula in year 2014. During the lightning event, the ionosphere may be disturbed which may cause disruption in the radio signal. Thus, it is important to understand the influence of lightning on VTEC in the study of upper-lower interaction. The lightning data is obtained from World Wide Lightning Location Network (WWLLN) and the VTEC data has analyzed from Global Positioning System (GPS) for O'Higgins (OHI3), Palmer (PALV), and Rothera (ROTH). The results demonstrate the VTEC variation of ∼0.2 TECU during low lightning activity which could be caused by energy dissipation through lightning discharges from troposphere into the thermosphere.