Volume 33 Issue 1
Jan.  2008
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JIANG Weiping, CHU Yonghai, LI Jiancheng, YAO Yongshun. Water Level Variation of Qinghai Lake from Altimeteric Data[J]. Geomatics and Information Science of Wuhan University, 2008, 33(1): 64-67.
Citation: JIANG Weiping, CHU Yonghai, LI Jiancheng, YAO Yongshun. Water Level Variation of Qinghai Lake from Altimeteric Data[J]. Geomatics and Information Science of Wuhan University, 2008, 33(1): 64-67.
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Water Level Variation of Qinghai Lake from Altimeteric Data

  • 1Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China;2School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;3Xining Institute of Hydropower and Investigation,5 Yuanshu Road,Xining 810012,China

Funds: 国家自然科学基金资助项目(40304001)
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  • Received Date: October 11, 2007
  • Revised Date: October 11, 2007
  • Published Date: January 04, 2008
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  • The lake level variation using satellite altimetric data is focused in the environment monitoring field.The level of Qinghai Lake is computed using waveform retracking technology based on the ENVISAT SGDR data from Oct 2002 to Feb.2005.The level variations of the orthometric and normal height using EGM96 model and quasi-geoid model of Qinghai are analyzed respectively.And then the results are compared with the in-situ gauge record.The results show that the accuracy of measured altimeter range to inland lake is improved by retracking technique,and the variation of Qinghai lake level from altimetric data is very similar with that from the in-situ gauge record.
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