Method Research |
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INFORMATION EXTRACTION AND LOSS ESTIMATION OF FLOOD AND WATERLOGGING DAMAGE BASED ON DEM |
Yu Guangming1, Wang Chaonan1, Zhong Rugang1, Zou Shanghui2, Zhang Jinxia2, Zhao Junhua2 |
1. Xianning Normal College, Habei Province 437005;
2. Department of Gengraphy, Central China Normal University, Wuhan 437000 |
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Abstract As the supplementary information source of remote sensing to the research on flood and waterlogging damages, the DEM Can provides two kinds of information, that is, the background data including the elevation, the location of ground spots and the relationships between spots, the basic relationships including the elevation-area relation, the elevationvolume relation and area-volume relation, etc. By these data and relations, the information of disastrous condition can be acquired from the interpretation of remote sensing image of flooding period, which includes the inundated area, water volume, water depth, inundated time and corp damaged content, etc. In this paper, the theory and method are stated for this research.
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Keywords
Urbanization
Land use
Buffer
Shanghai
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Issue Date: 02 August 2011
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