论文标题
评估在地磁风暴期间用导体观测的电离层模型的性能
Assessment of the Performance of Ionospheric Models with NavIC Observations during Geomagnetic Storms
论文作者
论文摘要
本文介绍了全球经验模型的性能的评估：国际参考电离层（IRI）-2016和NEQUICK2模型在印度星座（NAVIC）/印度区域导航卫星系统（IRNSS）估计的TEC估计的TEC估计的TEC条件下，Indian Constellation（NAVIC）/印度区域导航卫星系统（NAVIC）/印度区域导航条件下的NEQUICK2模型。本研究是通过印多尔进行的（地理：22.52 $^{\ circ} $ n 75.92 $^{\ circ} $ e and Magnetic dip：32.23 $^{\ circ} $ n，位于印度部门的赤道离子化Anomaly（EIA）地区附近）。对一场激烈的风暴（2017年9月6日至10日），中度风暴（2017年9月26日至30日）和轻度风暴（2018年1月17日至21日）进行了分析。据观察，与Navic观察到的TEC相比，IRI-2016和NEQUICK2衍生的TEC都被低估了，因此无法预测该地区TEC的暴风雨时间变化，并且需要从Navic（Navic）包含在Navic中，以更好地预测对可变印度经度部门的预测。
The paper presents an assessment of the performances of the global empirical models: International Reference Ionosphere (IRI)-2016 and the NeQuick2 model derived ionospheric Total Electron Content (TEC) with respect to the Navigation with Indian Constellation (NavIC)/ Indian Regional Navigation Satellite System(IRNSS) estimated TEC under geomagnetic storm conditions. The present study is carried out over Indore (Geographic: 22.52$^{\circ}$N 75.92$^{\circ}$E and Magnetic Dip: 32.23$^{\circ}$N, located close to the northern crest of the Equatorial Ionization Anomaly (EIA) region of the Indian sector). Analysis has been performed for an intense storm (September 6-10, 2017), a moderate storm (September 26-30, 2017) and a mild storm (January 17-21, 2018) that fall in the declining phase of the present solar cycle. It is observed that both IRI-2016 and NeQuick2 derived TEC are underestimates when compared with the observed TEC from NavIC and therefore fail to predict storm time changes in TEC over this region and requires real data inclusion from NavIC for better prediction over the variable Indian longitude sector.
