Modeling impact of FORMOSAT-7/COSMIC-2 mission on ionospheric space weather monitoring

I. T. Lee, H. F. Tsai, J. Y. Liu, C. H. Lin, T. Matsuo, L. C. Chang

研究成果: 雜誌貢獻期刊論文同行評審

25 引文 斯高帕斯(Scopus)


For the past decade, the paucity of ionospheric observations has made it almost impossible to reconstruct the three-dimensional structures of global ionospheric electron density. The Formosa Satellite-3/Constellation Observing System for Meteorology, Ionosphere and Climate (FORMOSAT-3/COSMIC, F3/C) constellation has provided ionospheric electron density profiles with high vertical resolution through radio occultation measurements. Slated for deployment starting in 2016, the FORMOSAT-7/COSMIC-2 (F7/C2) constellation will further provide more than 4 times the number of the F3/C occultation soundings. An observing system simulation experiment is conducted to determine the impact of F7/C2 on ionospheric weather monitoring. The results first show that the F7/C2 observations can reconstruct 3-D ionospheric structure with a data accumulation period of 1 h, which can advance studies of small spatial/temporal scale variation/signatures in the ionosphere. Comparing to assimilation results of F3/C, the assimilation system significantly reduces the error arising in the models and observations after assimilating synthetic observations of F7/C2. During this observing system simulation experiment period, the averaged root-mean-square error percentage for the results of F7/C2 is about 4.4%, lower than that of F3/C 7.3%. Furthermore, even with an assimilation window of less than 60 min, the F7/C2 RMS errors still yield reliable values compared to the F3/C results. This paper represents a major advance in ionospheric weather monitoring for the future mission. Key Points New operational constellation for ionospheric studies Near real-time 3-D electron density structure for space weather monitoring Keeping error of assimilation result reduced by short data accumulation period

頁(從 - 到)6518-6523
期刊Journal of Geophysical Research: Space Physics
出版狀態已出版 - 10月 2013


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