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COSMIC掩星电离层资料反演以及结果验证

徐贤胜 洪振杰 郭鹏 刘荣建

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COSMIC掩星电离层资料反演以及结果验证

徐贤胜, 洪振杰, 郭鹏, 刘荣建

Retrieval and validation of ionospheric measurements from COSMIC radio occultation

Xu Xian-Sheng, Hong Zhen-Jie, Guo Peng, Liu Rong-Jian
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  • 通过COSMIC掩星电离层观测资料L1和L2相位组合,得到相对总电子含量TEC;利用非掩星的辅助观测数据校正TEC,消除LEO卫星高度以上的TEC部分;在电子密度局部球对称假设和信号直线传播的近似下,通过Abel积分变换可以得到电子密度垂直廓线.将2007年度中与电离层测高仪站点经度差小于10°,纬度差小于2°的4903个COSMIC掩星电离层资料与相对应的电离层测高仪数据进行比较,F2层的临界频率f0F2的标准差约为059
    The relative total electron content (TEC) is obtained through the combination of COSMIC radio occultation ionospheric measurements L1 and L2 phase. The TEC data are then calibrated by non-occultation observation data on the auxiliary side to remove portion of TEC above the LEO orbit altitude. The electron density profile can be retrieved from TEC by Abel integral transformation,with a spherically symmetric assumption of electron density and an approximation of signal straight-line propagation. The computation standard deviation of F2-layer critical frequency f0F2 is about 059 MHz,and the standard deviation of F2-layer peak altitude hmF2 is about 3308 km,as through comparing 4903 COSMIC ionospheric occultation profiles with those from ionosonde stations,of which the longtitude deviations are less than 10°,the latitude deviations are less than 2°.
    • 基金项目: 国家高技术研究发展计划(863计划)(批准号:2009AA12Z319),国家自然科学基金(批准号:40605012)和浙江省自然科学基金(批准号:Y506040)资助的课题.
    [1]

    [1]Mannucci A,Wilson B,Yuan D,Ho C,Lindqwister U,Runge T 1998 Radio Sci. 33 565

    [2]

    [2]Schreiner W S,Sokolovskiy S V,Rocken C,Hunt D C 1999 Radio Sci. 34 949

    [3]

    [3]Lei J,Syndergaard S,Burns A G,Solomon S C,Wang W,Zeng Z,Roble R G,Wu Q,Kuo Y H,Holt J M,Zhang S R,Hysell D L,Rodrigues F S,Lin C H 2007 J. Geophys. Res. 112 A07308 doi:101029/2006JA012240

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    [4]Guo P,Yan H J,Hong Z J,Liu M,Huang C 2004 ChA&A 28 441

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    [5]Zeng Z,Hu Z,Zhang X X 2004 Chinese J. Geophys. 47 578 (in Chinese)[曾桢、胡雄、张训械 2004 地球物理学报 47 578]

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    [6]Guo P,Yan H J,Hong Z J,Huang C,Liu M 2005 ChA&A 46 96 (in Chinese)[郭鹏、严豪健、洪振杰、黄珹、刘敏 2005 天文学报 46 96]

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    [7]Hong Z J,Guo P,Liu M,Huang C 2006 ChA&A 47 100 (in Chinese)[洪振杰、郭鹏、刘敏、黄珹 2006 天文学报 47 100]

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    [8]Huang C S,Li J,Kelley M C 1994 Acta Phys. Sin. 43 239 (in Chinese)[黄朝松、李均、Kelley M C 1994 物理学报 43 239]

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    [9]Gu Z Y,Ji P Y 2002 Acta Phys. Sin. 51 1022 (in Chinese)[顾震宇、季沛勇 2002 物理学报 51 1022]

  • [1]

    [1]Mannucci A,Wilson B,Yuan D,Ho C,Lindqwister U,Runge T 1998 Radio Sci. 33 565

    [2]

    [2]Schreiner W S,Sokolovskiy S V,Rocken C,Hunt D C 1999 Radio Sci. 34 949

    [3]

    [3]Lei J,Syndergaard S,Burns A G,Solomon S C,Wang W,Zeng Z,Roble R G,Wu Q,Kuo Y H,Holt J M,Zhang S R,Hysell D L,Rodrigues F S,Lin C H 2007 J. Geophys. Res. 112 A07308 doi:101029/2006JA012240

    [4]

    [4]Guo P,Yan H J,Hong Z J,Liu M,Huang C 2004 ChA&A 28 441

    [5]

    [5]Zeng Z,Hu Z,Zhang X X 2004 Chinese J. Geophys. 47 578 (in Chinese)[曾桢、胡雄、张训械 2004 地球物理学报 47 578]

    [6]

    [6]Guo P,Yan H J,Hong Z J,Huang C,Liu M 2005 ChA&A 46 96 (in Chinese)[郭鹏、严豪健、洪振杰、黄珹、刘敏 2005 天文学报 46 96]

    [7]

    [7]Hong Z J,Guo P,Liu M,Huang C 2006 ChA&A 47 100 (in Chinese)[洪振杰、郭鹏、刘敏、黄珹 2006 天文学报 47 100]

    [8]

    [8]Huang C S,Li J,Kelley M C 1994 Acta Phys. Sin. 43 239 (in Chinese)[黄朝松、李均、Kelley M C 1994 物理学报 43 239]

    [9]

    [9]Gu Z Y,Ji P Y 2002 Acta Phys. Sin. 51 1022 (in Chinese)[顾震宇、季沛勇 2002 物理学报 51 1022]

计量
  • 文章访问数:  8406
  • PDF下载量:  1663
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-04-21
  • 修回日期:  2009-06-30
  • 刊出日期:  2010-03-15

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