Validation of Ionospheric Specifications During Geomagnetic Storms: TEC and foF2 During the 2013 March Storm Event
Validation of Ionospheric Specifications During Geomagnetic Storms: TEC and foF2 During the 2013 March Storm Event
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地磁风暴期间电离层规范的验证:2013 年 3 月风暴事件期间的 TEC 和 foF2
DOI:
10.1029/2018sw002034
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发表时间:
2018
期刊:
影响因子:
3.7
通讯作者:
Fedrizzi, M.
中科院分区:
文献类型:
--
作者:
Shim, J. S.;Tsagouri, I.;Goncharenko, L.;Rastaetter, L.;Kuznetsova, M.;Bilitza, D.;Codrescu, M.;Coster, A. J.;Solomon, S. C.;Fedrizzi, M.
To address challenges of assessing space weather modeling capabilities, the Community Coordinated Modeling Center is leading a newly establishedInternational Forum for Space Weather Modeling Capabilities Assessment. This paper presents preliminary results of validation of modeled foF2 (F2layer critical frequency) and TEC (total electron content) during the first selected 2013 March storm event (17 March 2013). In this study, we used eight ionospheric models ranging from empirical to physics‐based, coupled ionosphere‐thermosphere and data assimilation models. The quantities we considered are TEC and foF2 changes and percentage changes compared to quiet time background, and the maximum and minimum percentage changes. In addition, we considered normalized percentage changes of TEC. We compared the modeled quantities with ground‐based observations of vertical Global Navigation Satellite System TEC (provided by Massachusetts Institute of Technology Haystack Observatory) and foF2 data (provided by Global Ionospheric Radio Observatory) at the 12 locations selected in middle latitudes of the American and European‐African longitude sectors. To quantitatively evaluate the models' performance, we calculated skill scores including correlation coefficient, root‐mean square error (RMSE), ratio of the modeled to observed maximum percentage changes (yield), and timing error. Our study indicates that average RMSEs of foF2 range from about 1 MHz to 1.5 MHz. The average RMSEs of TEC are between ~5 and ~10 TECU (1 TEC Unit = 1016el/m2). dfoF2[%] RMSEs are between 15% and 25%, which is smaller than RMSE of dTEC[%] ranging from 30% to 60%. The performance of the models varies with the location and metrics considered.
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DOI:
10.1002/2016sw001536
发表时间:
2017-01
期刊:
Space Weather
影响因子:
--
作者:
M. Nishioka;T. Tsugawa;H. Jin;M. Ishii
通讯作者:
M. Nishioka;T. Tsugawa;H. Jin;M. Ishii
DOI:
10.1002/2016ja023341
发表时间:
2017-01
期刊:
Journal of Geophysical Research: Space Physics
影响因子:
--
作者:
J. Huba;S. Sazykin;A. Coster
通讯作者:
J. Huba;S. Sazykin;A. Coster
影响因子:
1.6
作者:
E. Araujo‐Pradere;T. Fuller‐Rowell;P. Spencer;C. Minter
通讯作者:
C. Minter
影响因子:
2.6
作者:
T. Fuller‐Rowell;E. Araujo‐Pradere;M. Codrescu
通讯作者:
M. Codrescu
影响因子:
1.6
作者:
L. Zhu;R. Schunk;G. Jee;L. Scherliess;J. Sojka;D. Thompson
通讯作者:
D. Thompson