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Summary of Proposal MTH2843

TitleGlacier surface velocity estimation using TerraSAR-X images
Investigator ju, chu - Hunan University, Surveying, Mapping and Remote Sensing
Team Member
Doctor ming, li - hunan university, Surveying, Mapping and Remote Sensing
Master liu, li - hunan university, Surveying, Mapping and Remote Sensing

For the observation and monitoring of glacier surface velocity, remote sensing is an increasingly suitable tool thanks to the high temporal and spatial resolution of the data. Radar sensors have the specific advantage over optical sensors of being nearly weather and time-independent. The TerraSAR-X images with the high-resolution spotlight and stripmap modes were used to estimated glacial surface velocity over Qinghai-Tibet plateau. The SM mode covers larger ground swaths, making it more suitable for glacier-wide observations, while HS images cover less area but offer the highest-possible spatial resolution, approximately 1 by 1 m on the ground. Glacial surface velocity estimation was performed using two methods, the comparison of which was a major goal of this study: traditional cross-correlation optimisation and a dense image matching algorithm based on complex wavelet decomposition.

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DLR 2004-2016