姜卫平, 褚永海, 李建成, 姚永顺. 国家自然科学基金资助项目(40701152,40471108)[J]. 武汉大学学报 ( 信息科学版), 2008, 33(1): 64-67.
引用本文: 姜卫平, 褚永海, 李建成, 姚永顺. 国家自然科学基金资助项目(40701152,40471108)[J]. 武汉大学学报 ( 信息科学版), 2008, 33(1): 64-67.
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.

国家自然科学基金资助项目(40701152,40471108)

Water Level Variation of Qinghai Lake from Altimeteric Data

  • 摘要: 使用2002年10月~2006年2月的ENVISAT SGDR数据,并利用重跟踪技术实施了距离等相关改正之后,计算了青海湖的水位变化;同时分别利用EGM96、青海省的似大地水准面模型计算了青海湖的正高和正常高相应水位变化,并与青海湖下社站的水文观测数据进行了验证。研究结果表明,利用波形重跟踪技术在某种程度上可以改进内陆水域的距离精度,能够较好地监测出青海湖的水位变化。

     

    Abstract: 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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