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

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題名:	Modeling impact of FORMOSAT-7/COSMIC-2 mission on ionospheric space weather monitoring
作者:	張起維;Lee, I. T.;Tsai, H. F.;Liu, J. Y.;Lin, C. H.;Matsuo, T.;Chang, L. C.
貢獻者:	地球科學學院太空科學與工程學系
關鍵詞:	Assimilation;Astronomy;Constellations;data assimilation;Earth, ocean, space;Exact sciences and technology;External geophysics;FORMOSAT-7/COSMIC-2;Interplanetary space;Ionosphere;Ionospheric electron density;ionospheric space weather;Ionospherics;Meteorology;Monitoring;Physics of the ionosphere;Physics of the magnetosphere;Solar system;Space weather;Three dimensional
日期:	2013-01-01
上傳時間:	2026-04-23 11:05:06 (UTC+8)
出版者:	Wiley-Blackwell;Hoboken, NJ: Blackwell Publishing Ltd
摘要:	摘要： 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 其他題名： J. Geophys. Res. Space Physics 出版者： Hoboken, NJ: Blackwell Publishing Ltd 出版日期： 2013-10 出處： Journal of geophysical research : Space physics (2013 - Present), 2013-10, Vol.118 (10), p.6518-6523 資源來源： Wiley Journals Core Collection (NTUSG) 版權： 2013. American Geophysical Union. All Rights Reserved. 版權： 2015 INIST-CNRS 識別號： ISSN: 2169-9380 識別號： EISSN: 2169-9402 識別號： DOI: 10.1002/jgra.50538
顯示於類別:	[太空科學與工程學系] 期刊論文

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