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A Three-Dimensional Inversion Study of Ebinur Terrace |
ZAN Mei, CHEN Shu-Jiang, WU Cheng-Yong |
School of Geographic Science and Tourism, Xinjiang Normal University, Urumqi 830054, China |
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Abstract With ASTER, ETM and SPOT remote-sensing images as the data sources, the authors used remote-sensing software to enhance the images so as to highlight the embankment information of the Ebinur Lake. By superimposition of the practical sampling points, satellite remote-sensing images and DEM data, the relic sites of lakeshore and terrace were determined. Through setting up the flooding model, the authors obtained the three-dimensional information of the Ebinur Lake terrace easily and accurately, formulated high-precision DEM data, created simulated three-dimensional landform model, and realized three-dimensional demonstration and three-dimensional flooding. The overall and partial characteristics of the landform can be observed from different angles, different points of view and different attitudes. With the help of the GIS system tool, the lake surface areas, volumes and flooding ranges of different periods can be accurately calculated, and the surface situation of the Ebinur Lake can be understood through inversion. All these results are of great significance in the study of the morphologic shape and evolution of the Ebinur Lake.
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Keywords
Land types
Fractal theory
Shape parameter
GIS
Nanji Island
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Issue Date: 02 August 2011
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