The regional ionospheric models are successful in capturing the variability of ionosphere with the inclusion of local ground-based GPS observations and location dependent ionospheric dynamics. In this context, there is a need to develop regional ionospheric maps that aids in improving the consistency of global models. In this paper, an attempt is made to understand the potentiality of multi-instrument observations over Indian region. Four different Total Electron Content (TEC) data sources namely from network of GPS receivers, Ionosonde stations, space based COSMIC radio occultation profiles and SWARM mission data is utilized. The multi-source data is chosen for the geo-magnetic storm conditions prevailed during March 2015. Data from multiple-sources is observed over the period from 15th March 2015 to 20th March 2015. Validation of ground and space-based TEC data with International GNSS service (IGS) station data is significantly observed.

中文翻译：

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使用多仪器 TEC 观测对 2015 年 3 月地磁风暴的低纬度电离层响应在印度

区域电离层模型成功地捕捉到了电离层的变化，包括当地基于地面的 GPS 观测和位置相关的电离层动力学。在此背景下，需要开发有助于提高全球模型一致性的区域电离层图。在本文中，试图了解印度地区多仪器观测的潜力。利用了四种不同的总电子含量 (TEC) 数据源，即来自 GPS 接收器网络、离子探空仪站、基于空间的 COSMIC 无线电掩星剖面和 SWARM 任务数据。多源数据是针对2015年3月盛行的地磁暴条件选择的。多源数据是在2015年3月15日至2015年3月20日期间观测到的。