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Effect of intense geomagnetic storms on low-latitude TEC during the ascending phase of the solar cycle 24
Journal of Astrophysics and Astronomy ( IF 1.1 ) Pub Date : 2021-08-23 , DOI: 10.1007/s12036-021-09774-8
Abha Singh 1, 2 , Vishnu S. Rathore 1 , Sanjay Kumar 1 , S. S. Rao 1 , A. K. Singh 1 , Sudesh K. Singh 2
Affiliation  

The results presented in this paper are obtained from low-latitude ionospheric total electron content (TEC) variation during the chosen geomagnetic storm events happening during the solar cycle 24. We include the four intense geomagnetic storms that occurred on 26 September 2011, 15 July 2012, 19 February 2014 and 20 December 2015, depending upon the availability of TEC data. For this, we have used the TEC data from low-latitude station Varanasi (geographic latitude 25°, 16′N, geographic longitude 82°, 59′E and geomagnetic latitude 16°, 24′N) and an equatorial station Bengaluru (geographic latitude 13°, 02′N, geographic longitude 77°, 34′E and geomagnetic latitude 04°, 68′N). The storm-induced TEC changes at chosen stations have been discussed in terms of local time, storm wind effect, neutral wind, composition changes and variation in the dawn–dusk component of the interplanetary electric field (IEF Ey).



中文翻译:

太阳活动周期上升阶段强烈地磁风暴对低纬度TEC的影响 24

本文提出的结果是从太阳周期 24 期间发生的选定地磁暴事件期间低纬度电离层总电子含量 (TEC) 变化中获得的。我们包括了 2011 年 9 月 26 日和 2012 年 7 月 15 日发生的四次强烈地磁暴,2014 年 2 月 19 日和 2015 年 12 月 20 日,取决于 TEC 数据的可用性。为此,我们使用了来自低纬度站 Varanasi(地理纬度 25°, 16'N,地理经度 82°, 59'E 和地磁纬度 16°, 24'N)和一个赤道站班加罗尔(地理纬度)的 TEC 数据。纬度 13°, 02'N, 地理经度 77°, 34'E 和地磁纬度 04°, 68'N)。已根据当地时间、风暴风效应、中性风、ê ÿ)。

更新日期:2021-08-24
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