地方时的全球电离层格网精度评价
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摘要
针对IGS发布的电离层格网产品的精度(均方根)在不同区域受太阳辐射影响不同的问题,该文提出基于地方时的全球电离层格网精度分析,通过地方时能较好地分析近似太阳辐射条件下的电离层精度。研究结果显示,电离层精度明显受地面基准站分布疏密的影响,基准站密集区域均方根随太阳辐射变化的波动较小,并且在太阳辐射较高时也能很好地保证电离层产品的精度;而基准站稀疏的区域均方根随太阳活动的影响较大,电离层精度较差。
According to the problem that the accuracy of ionosphere(root mean square)issued by IGS existed difference due to solar radiation in different areas,the paper put forward a new mode basing at the local time to analysis the precision of ionosphere,through local time,ionospheric accuracy in the similar solar radiation conditions could be well analysed.The results showed that the precision of ionosphere affected obviously by the distribution of ground-based stations,on the high-density ground-based stations areas,the RMS were less influenced by the solar radiation,and even in the high solar radiation it could ensure preferably the precision;the RMS had bigger variation with the solar radiation in the sparse areas,the precision of ionosphere was poor.
According to the problem that the accuracy of ionosphere(root mean square)issued by IGS existed difference due to solar radiation in different areas,the paper put forward a new mode basing at the local time to analysis the precision of ionosphere,through local time,ionospheric accuracy in the similar solar radiation conditions could be well analysed.The results showed that the precision of ionosphere affected obviously by the distribution of ground-based stations,on the high-density ground-based stations areas,the RMS were less influenced by the solar radiation,and even in the high solar radiation it could ensure preferably the precision;the RMS had bigger variation with the solar radiation in the sparse areas,the precision of ionosphere was poor.
引文
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[2]SCHAER S.Mapping and predicting the earth’s ionosphere using the global positioning system[D].Bernese:University of Bernese,1999.
[3]HERNANDEZ-PAJARES M,JUAN J M,SANZ J.New approaches in global ionospheric determination using ground GPS data[J].Journal of Atmospheric and Solar-Terrestrial Physics,1999,61(16):1237-1247.
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[5]王成,施闯,段兵兵,等.利用位置与云计算建立电离层TEC主动式播发平台[J].武汉大学学报(信息科学版),2016,41(3):304-309.(WANG Cheng,SHIChuang,DUAN Bingbing,et al.Ionosphere total electron content active broadcasting platform using location and cloud computing[J].Geomatics and Information Science of Wuhan University,2016,41(3):304-309.)
[6]LI Z S,YUAN Y B,WANG N B,et al.SHPTS:towards a new method for generating precise global ionospheric TEC map based on spherical harmonic and generalized trigonometric series functions[J].Journal of Geodesy,2015,89(4):331-345.
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[9]刘馨蕊,马颖异.鞍山区域电离层模型构建及GNSS应用研究[J].测绘科学,2017,42(3):80-85.(LIU Xinrui,MA Yingyi.Study on the construction of Anshan regional ionospheric model and application for GNSS[J].Science of Surveying and Mapping,2017,42(3):80-85.)
[10]柳景斌,王泽民,章红平,等.几种地基GPS区域电离层TEC建模方法的比较及其一致性研究[J].武汉大学学报(信息科学版),2008,33(5):479-483.(LIUJingbin,WANG Zemin,ZHANG Hongping,et al.Comparison and consistency research of regional ionospheric TEC models based on GPS measurements[J].Geomatics and Information Science of Wuhan University,2008,33(5):479-483.)
[11]袁运斌,霍星亮,欧吉坤.精确求定GPS信号的电离层延迟的模型与方法研究[J].自然科学进展,2006,16(1):40-48.(YUAN Yunbin,HUO Xingliang,OU Jikun.Precise study of the model and method of ionosphere delay of GPS signal[J].Progress in Natural Science,2006,16(1):40-48.)
[12]焦明连,蒋廷臣,王秀萍.基于GNSS的电离层模型研究进展[J].测绘科学,2008,33(5):91-93(JIAOMinglian,JIANG Tingchen,WANG Xiuping.Research development of ionospheric models based on GNSS[J].Science of Surveying and Mapping,2008,33(5):91-93.)
[13]陈鹏,陈家君.全球电离层格网模型精度影响因素分析[J].大地测量与地球动力学,2014,34(2):105-110.(CHEN Peng,CHEN Jiajun.Analysis of factors affecting accuracy of global ionospheric grid model[J].Journal of Geodesy and Geodynamics,2014,34(2):105-110.)
[14]SCHAER S.The ionosphere map exchange format version 1[C]∥Proc of IGS Analysis Center Workshop.Darmstadt:[s.n.],1998.
[15]BAKER D N.Effect of the sun on the earth’s environment[J].Journal of Atmospheric and Solar-Terrestrial physics,2000,62(17/18):1669-1681.
[16]LIU L B,WAN W X,CHEN Y D,et al.Solar activity effects of the ionosphere[J].Science Bulletin,2011,56(12):1202-1211.
[2]SCHAER S.Mapping and predicting the earth’s ionosphere using the global positioning system[D].Bernese:University of Bernese,1999.
[3]HERNANDEZ-PAJARES M,JUAN J M,SANZ J.New approaches in global ionospheric determination using ground GPS data[J].Journal of Atmospheric and Solar-Terrestrial Physics,1999,61(16):1237-1247.
[4]章红平,韩文慧,黄玲,等.地基GNSS全球电离层延迟建模[J].武汉大学学报(信息科学版),2012,37(10):1186-1189.(ZHANG Hongping,HAN Wenhui,HUANG Ling,et al.Modeling global ionospheric delay with IGS ground-based GNSS observations[J].Geomatics and Information Science of Wuhan University,2012,37(10):1186-1189.)
[5]王成,施闯,段兵兵,等.利用位置与云计算建立电离层TEC主动式播发平台[J].武汉大学学报(信息科学版),2016,41(3):304-309.(WANG Cheng,SHIChuang,DUAN Bingbing,et al.Ionosphere total electron content active broadcasting platform using location and cloud computing[J].Geomatics and Information Science of Wuhan University,2016,41(3):304-309.)
[6]LI Z S,YUAN Y B,WANG N B,et al.SHPTS:towards a new method for generating precise global ionospheric TEC map based on spherical harmonic and generalized trigonometric series functions[J].Journal of Geodesy,2015,89(4):331-345.
[7]COMBRINCK W L,CHIN M.IGS stations:station and regional issues[J].Physics and Chemistry of the Earth,Part A Solid Earth and Geodesy,2001,26(1):539-544.
[8]欧明,甄卫民,张时生,等.一种融合天地基多源数据的电离层反演方法[J].电波科学学报,2016,31(4),713-719.(OU Ming,ZHEN Weiming,ZHANG Shisheng,et al.A combined ionosphere inversion method by data fusion of space and ground-based multisource observations[J].Chinese Journal of Radio Science,2016,31(4):713-719.)
[9]刘馨蕊,马颖异.鞍山区域电离层模型构建及GNSS应用研究[J].测绘科学,2017,42(3):80-85.(LIU Xinrui,MA Yingyi.Study on the construction of Anshan regional ionospheric model and application for GNSS[J].Science of Surveying and Mapping,2017,42(3):80-85.)
[10]柳景斌,王泽民,章红平,等.几种地基GPS区域电离层TEC建模方法的比较及其一致性研究[J].武汉大学学报(信息科学版),2008,33(5):479-483.(LIUJingbin,WANG Zemin,ZHANG Hongping,et al.Comparison and consistency research of regional ionospheric TEC models based on GPS measurements[J].Geomatics and Information Science of Wuhan University,2008,33(5):479-483.)
[11]袁运斌,霍星亮,欧吉坤.精确求定GPS信号的电离层延迟的模型与方法研究[J].自然科学进展,2006,16(1):40-48.(YUAN Yunbin,HUO Xingliang,OU Jikun.Precise study of the model and method of ionosphere delay of GPS signal[J].Progress in Natural Science,2006,16(1):40-48.)
[12]焦明连,蒋廷臣,王秀萍.基于GNSS的电离层模型研究进展[J].测绘科学,2008,33(5):91-93(JIAOMinglian,JIANG Tingchen,WANG Xiuping.Research development of ionospheric models based on GNSS[J].Science of Surveying and Mapping,2008,33(5):91-93.)
[13]陈鹏,陈家君.全球电离层格网模型精度影响因素分析[J].大地测量与地球动力学,2014,34(2):105-110.(CHEN Peng,CHEN Jiajun.Analysis of factors affecting accuracy of global ionospheric grid model[J].Journal of Geodesy and Geodynamics,2014,34(2):105-110.)
[14]SCHAER S.The ionosphere map exchange format version 1[C]∥Proc of IGS Analysis Center Workshop.Darmstadt:[s.n.],1998.
[15]BAKER D N.Effect of the sun on the earth’s environment[J].Journal of Atmospheric and Solar-Terrestrial physics,2000,62(17/18):1669-1681.
[16]LIU L B,WAN W X,CHEN Y D,et al.Solar activity effects of the ionosphere[J].Science Bulletin,2011,56(12):1202-1211.