SUN Fangfang, LUO Jia, XU Xiaohua, WANG Han. Comparisons of Ionospheric Peak Parameters from Radio Occultation Observations and IRI-2016 Model Outputs over China[J]. Geomatics and Information Science of Wuhan University, 2020, 45(3): 403-410. DOI: 10.13203/j.whugis20180391
Citation: SUN Fangfang, LUO Jia, XU Xiaohua, WANG Han. Comparisons of Ionospheric Peak Parameters from Radio Occultation Observations and IRI-2016 Model Outputs over China[J]. Geomatics and Information Science of Wuhan University, 2020, 45(3): 403-410. DOI: 10.13203/j.whugis20180391

Comparisons of Ionospheric Peak Parameters from Radio Occultation Observations and IRI-2016 Model Outputs over China

Funds: 

The National Natural Science Foundation of China 41774032

The National Natural Science Foundation of China 41774033

the National Key Research and Development Program of China 2018YFC1503502

the National Key Basic Research and Development Program of China 2013CB733302

More Information
  • Author Bio:

    SUN Fangfang, postgraduate, specializes in GNSS ionospheric radio occultation. E-mail:sunfangfang@whu.edu.cn

  • Corresponding author:

    LUO Jia, PhD, associatet professor. E-mail: jialuo@whu.edu.cn

  • Received Date: September 29, 2018
  • Published Date: March 04, 2020
  • NmF2 and hmF2 outputted by the latest International Reference Ionosphere (IRI-2016) model are compared with COSMIC (Constellation Observing System for Meteorology Ionosphere and Climate) radio occultation (RO) measurements during 2008-2014 over China. For both NmF2 and hmF2, the correlations between IRI-2016 model outputs and COSMIC RO measurements are higher during high solar activity years (2011-2014) than low solar activity years (2008-2010). During LT(local time) 12:00-14:00 of equinox months in low solar activity years, IRI-2016 model generally underestimates NmF2 and overestimates hmF2 at 30°N-55°N, while overestimates NmF2 and underestimates hmF2 at 15°N-30°N. Outputs based on IRI_CCIR and IRI_URSI model options both overestimate NmF2 and the overestimation is more distinct during low solar activity years than high solar activity years. As for hmF2, during low solar activity years, both IRI_CCIR and IRI_AMTB model outputs are higher than COSMIC RO observations for all the three seasons and the deviations of IRI_AMTB model outputs from RO measurements are the largest, especially in winter. It is recommended that IRI_CCIR model and IRI_Shubin model should be used for calculating NmF2 and hmF2 over China respectively.
  • [1]
    Yue X, Schreiner W S, Rocken C, et al. Validate the IRI2007 Model by the COSMIC Slant TEC Data During the Extremely Solar Minimum of 2008[J].Advances in Space Research, 2013, 51(4):647-653 doi: 10.1016/j.asr.2011.08.011
    [2]
    Gordiyenko G I, Yakovets A F. Comparison of Midlatitude Ionospheric F Region Peak Parameters and Topside Ne Profiles from IRI2012 Model Prediction with Ground-Based Ionosonde and Alouette II Observations[J]. Advances in Space Research, 2017, 60(2):461-474 doi: 10.1016/j.asr.2017.01.006
    [3]
    Bilitza D, Altadill D, Zhang Y, et al. The International Reference Ionosphere 2012-a Model of International Collaboration[J]. Journal of Space Weather and Space Climate, 2014, 4(A07):1-12 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=Doaj000003666511
    [4]
    Bilitza D, Altadill D, Truhlik V, et al. International Reference Ionosphere 2016:From Ionospheric Climate to Real-Time Weather Predictions[J]. Space Weather, 2017, 15:418-429 doi: 10.1002/2016SW001593
    [5]
    Altadill D, Magdaleno S, Torta J M, et al. Global Empirical Models of the Density Peak Height and of the Equivalent Scale Height for Quiet Conditions[J]. Advances in Space Research, 2013, 52(10):1756-1769 doi: 10.1016/j.asr.2012.11.018
    [6]
    Shubin V N. Global Median Model of the F2-Layer Peak Height Based on Ionospheric Radio-Occultation and Ground-Based Digisonde Observations[J]. Advances in Space Research, 2015, 56(5):916-928 doi: 10.1016/j.asr.2015.05.029
    [7]
    Lei J, Syndergaard S, Burns A G, et al. Comparison of COSMIC Ionospheric Measurements with Ground-Based Observations and Model Predictions:Preliminary Results[J]. Journal of Geophysical Research:Space Physics, 2007, 112(47):A07308 doi: 10.1029-2006JA012240/
    [8]
    Chu Y H, Su C L, Ko H T. A Global Survey of COSMIC Ionospheric Peak Electron Density and Its Height:A Comparison with Ground-Based Ionosonde Measurements[J]. Advances in Space Research, 2010, 46(4):431-439 doi: 10.1016/j.asr.2009.10.014
    [9]
    孙凌峰, 赵必强, 乐新安, 等.中国区域电离层垂测仪探测参量与COSMIC掩星反演结果比较研究[J].地球物理学报, 2014, 57(11):3625-3632 http://d.old.wanfangdata.com.cn/Conference/8495752

    Sun L F, Zhao B Q, Yue X A, et al. Comparison Between Ionospheric Character Parameters Retrieved from FORMOSAT3 Measurements and Ionosonde Observation over China[J]. Chinese Journal of Geophysics, 2014, 57(11):3625-3632 http://d.old.wanfangdata.com.cn/Conference/8495752
    [10]
    赵莹, 张小红. COSMIC掩星观测数据反演电离层电子密度廓线[J].武汉大学学报·信息科学版, 2010, 35(6):644-648 http://ch.whu.edu.cn/CN/abstract/abstract980.shtml

    Zhao Ying, Zhang Xiaohong. Inversion of Ionospheric Electron Density Profiles with COSMIC Occultation Data[J].Geomatics and Information Science of Wuhan University, 2010, 35(6):644-648 http://ch.whu.edu.cn/CN/abstract/abstract980.shtml
    [11]
    Zhao X K, Ning B Q, Zhang M L, et al. Comparison of the Ionospheric F-2 Peak Height Between Ionosonde Measurements and IRI2016 Predictions over China[J]. Advances in Space Research, 2017, 60(7):1524-1531 doi: 10.1016/j.asr.2017.06.056
    [12]
    Yang K F, Chu Y H, Su C L, et al. An Examination of FORMOSAT-3/COSMIC Ionospheric Electron Density Profile:Data Quality Criteria and Comparisons with the IRI Model[J]. Terrestrial, Atmospheric and Oceanic Sciences, 2009, 20(1):193-206 doi: 10.3319/TAO.2007.10.05.01(F3C)
    [13]
    黄智, 袁洪.磁赤道地区2007-2013年COSMIC掩星反演和国际参考电离层模型输出结果分析[J].地球物理学报, 2016, 59(7):2333-2343 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxb201607001

    Huang Zhi, Yuan Hong. An Analysis of Ionospheric Characteristic Parameters Retrieved from COSMIC and IRI at Jicamarca During the Period of 2007-2013[J]. Chinese Journal of Geophysics, 2016, 59(7):2333-2343 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxb201607001
    [14]
    Yue X, Schreiner W S, Lei J, et al. Error Analysis of Abel Retrieved Electron Density Profiles from Radio Occultation Measurements[J]. Annales Geophysicae, 2010, 28(1):217-222 doi: 10.5194/angeo-28-217-2010
    [15]
    Hu L, Ning B, Liu L, et al. Validation of COSMIC Ionospheric Peak Parameters by the Measurements of an Ionosonde Chain in China[J]. Annales Geophysicae, 2014, 32(10):1311-1319 doi: 10.5194/angeo-32-1311-2014

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