Research Papers

Application of satellite remote sensing to coastal topography generation: case study of Chongming Island in Shanghai, China

[+] Author Affiliations
Xiaohu Zhang, Zhongyang Guo

East China Normal University, Department of Geography, Key Laboratory of Geographic Information Science, Ministry of Education, Shanghai, 200062 China

Xiaoyan Dai

East China Normal University, Key Laboratory of Estuarine and Coastal Research, Shanghai, 200062 China

Xiaodong Li

East China Normal University, Department of Geography, Key Laboratory of Geographic Information Science, Ministry of Education, Shanghai, 200062 China

J. Appl. Remote Sens. 3(1), 033572 (December 16, 2009). doi:10.1117/1.3289727
History: Received October 14, 2008; Revised October 19, 2009; Accepted December 14, 2009; December 16, 2009; Online December 16, 2009
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Abstract

This study couples Laplacian-of-Gaussian filter (LoG) and wavelet multi-scale edge detection approaches to extract the waterlines of Chongming Island from Landsat images. The digital elevation model (DEM) of the Chongming tidal flat is constructed by means of the "waterline method". From multi-temporal images obtained under different tidal conditions, it is possible to build up a set of heighted waterlines within the tidal zone, and gridded DEM is then generated by the Australian National University Digital Elevation Model (ANUDEM) method. The results indicate that the methods proposed by this paper can effectively reproduce the coastal near shore topography of Chongming Island, and the precision of the DEM of Dongtan tidal flat is acceptable.

© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Xiaohu Zhang ; Zhongyang Guo ; Xiaoyan Dai and Xiaodong Li
"Application of satellite remote sensing to coastal topography generation: case study of Chongming Island in Shanghai, China", J. Appl. Remote Sens. 3(1), 033572 (December 16, 2009). ; http://dx.doi.org/10.1117/1.3289727


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