- ZHAO Jian
ZHAO Jian
College of Surveying and Geo informatics, Tongji University, Shanghai 200092, China; School of Geosciences, China University of Petroleum, Qingdao 266580, China;Center for Spatial Information Science and Sustainable Development, Tongji University, Shanghai 200092, China
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Search for this author on this site - SHEN Yunzhong
SHEN Yunzhong
College of Surveying and Geo informatics, Tongji University, Shanghai 200092, China;Center for Spatial Information Science and Sustainable Development, Tongji University, Shanghai 200092, China
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P128.3；P229.2
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Four waveform retracking algorithms, Ocean1, Threshold, Offset center of gravity (OCOG), and Beta 5 parameter retracking algorithms, were used to retrack the Envisat waveforms over the Hainan coastal ocean and the accuracy of retracked sea surface heights (SSHs) were assessed. The results indicate that the accuracy of the SSHs can be improved by waveform retracking algorithms and the spatial resolution of the retracked SSHs is significantly improved. The accuracy of the Threshold 50% Algorithm is the highest and the Oceanl Algorithm also performs better than the other two. The Threshold 50% Algorithm is the most stable retracking method and more suitable for the Envisat waveform retracking over Hainan coastal ocean.
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ZHAO Jian, SHEN Yunzhong. Assessment of Retracked Envisat Altimetry Sea Surface Heights near Hainan Coastal Ocean[J].同济大学学报(自然科学版),2013,41(11):1726~1731
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History
- Received:September 14,2012
- Revised:July 15,2013
- Adopted:June 14,2013
- Online: October 28,2013
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