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C/NOFS, COSMIC and GNSS Observations of Plasma Irregularity During the Evening and Nighttimes in East African Sector
Radio Science ( IF 1.6 ) Pub Date : 2021-04-15 , DOI: 10.1029/2019rs007032
Samson Tilahun 1
Affiliation  

In this paper, a comprehensive view of the evening and nighttime ionospheric irregularities using Communication/Navigation Outage Forecasting System (C/NOFS), Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC), and Global Navigation Satellite System GPS satellites were carried out over the east African region during June and September 2014. The strength of the pre‐reversal enhancement measured by C/NOFS during June and September shows a direct relationship with the mean rate of change of TEC index observation for respective months at both ADIS and BDMT GPS‐sites in Ethiopia. Simultaneous measurements of C/NOFS ion density and Scintillation Networks and Decision Aid dedicated scintillation show strong and weak ionospheric irregularities during September and June, respectively. Most importantly C/NOFS has detected the deep plasma irregularities in the local time range of 20:00–21:00. A significant decrease in ion density within the plasma irregularity became much smaller between 21:00–01:00 LT.

中文翻译:

C / NOFS,COSMIC和GNSS在东非地区夜间和夜间的血浆不规则性观察

本文利用通信/导航中断预报系统(C / NOFS),气象,电离层和气候星座观测系统(COSMIC)以及全球导航卫星系统GPS卫星,对夜间和夜间电离层的不规则现象进行了全面的观察。 C / NOFS在6月和9月期间对东非地区进行了逆向增强。C/ NOFS在6月和9月期间对逆转前增强的强度显示出与ADIS和TEC各自月份的TEC指数观测值的平均变化率有直接关系。埃塞俄比亚的BDMT GPS站点。C / NOFS离子密度和闪烁网络以及决策辅助专用闪烁的同时测量分别显示了9月和6月的电离层不规则性强和弱。最重要的是,C / NOFS在当地时间20:00–21:00发现了深层血浆不规则现象。在21:00–01:00 LT之间,等离子体不规则内离子密度的显着下降变得很小。
更新日期:2021-04-23
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