| 基于DEM的洪涝灾害信息提取与损失估算 |
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| 引用本文： | 喻光明,王朝南,钟儒刚,邹尚辉,张金霞,赵俊华.基于DEM的洪涝灾害信息提取与损失估算[J].国土资源遥感,1996,7(1):42-50. |
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| 作者姓名： | 喻光明 王朝南 钟儒刚 邹尚辉 张金霞 赵俊华 |
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| 作者单位： | 咸宁师范高等专科学校，华中师范大学地理系 |
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| 基金项目： | 湖北省高校青年科学研究发展计划,国家自然科学基金 |
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| 摘 要： | 数字高程模型(DEM)作为洪涝灾害遥感研究的辅助信息源可以提供两类信息,一是地面点的高程和所处地形部位以及与邻域的相互关系等方面的背景数据,二是研究区高程-面积关系、高程-容积关系及面积-容积关系等基本关系信息。利用这些背景数据和基本关系信息,结合洪水期遥感图像的解译,可以获取洪水淹没范围、淹没区积水量、水深、淹没历时以及作物受灾程度等灾情信息。本文阐述了这种研究的原理和方法。
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| 关 键 词： | 洪涝灾害 DEM 辅助信息 信息提取 损失估算 |
| 收稿时间： | 1995-12-27 |
INFORMATION EXTRACTION AND LOSS ESTIMATION OF FLOOD AND WATERLOGGING DAMAGE BASED ON DEM |
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| Yu Guangming, Wang Chaonan, Zhong Rugang.INFORMATION EXTRACTION AND LOSS ESTIMATION OF FLOOD AND WATERLOGGING DAMAGE BASED ON DEM[J].Remote Sensing for Land & Resources,1996,7(1):42-50. |
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| Authors: | Yu Guangming Wang Chaonan Zhong Rugang |
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| Institution: | 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: | flood and waterloggins damage DEM supplementary information information extraction loss estimation |
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