Volume 37 Issue 6
Jun.  2012
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JIN Taoyong, HU Minzhang, JIANG Tao, ZHANG Shoujian. Cross-Calibration and Errors Analysis of Ionosphere Correction in Satellite Altimetry[J]. Geomatics and Information Science of Wuhan University, 2012, 37(6): 658-661.
Citation: JIN Taoyong, HU Minzhang, JIANG Tao, ZHANG Shoujian. Cross-Calibration and Errors Analysis of Ionosphere Correction in Satellite Altimetry[J]. Geomatics and Information Science of Wuhan University, 2012, 37(6): 658-661.
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Cross-Calibration and Errors Analysis of Ionosphere Correction in Satellite Altimetry

  • 1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2 Key Laboratory of Geospace Environment and Geodesy,Ministry of Education, Wuhan Unversity,129 Luoyu Road,Wuhan 430079,China

Funds: 国家863计划资助项目(2009AA121402);;国家自然科学基金资助项目(41004007,41074014);;地球物理大地测量国家测绘地理信息局重点实验室开放基金资助项目(10-02-08)
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  • Received Date: April 19, 2012
  • Published Date: June 04, 2012
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  • The single-and dual-frequency ionosphere corrections in satellite altimetry are analyzed in detail.Taking Topex dual-frequency ionosphere corrections as an example,RMS of cross-over difference can be reduced upto 5.7-7.3 mm by along-track filtering of low-pass Gauss.Then,the filtered Topex ionosphere corrections are cross-calibrated with DOIRS,IRI2007 and GIM models that are established by measurements of global continuous GPS tracking stations.The results show that the accuracy of DORIS and GIM is higher than that of IRI2007.The statistics of difference between the filtered Topex dual-frequency ionosphere correction and that from these models show a systematic bias of 10-15 mm.
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