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 针对洪水灾害评估的特点,将GIS技术与RS技术相结合,根据数字高程模型DEM提供的三维数据和遥感影像数据,运用GIS的空间分析功能来预测、模拟显示红水河流域洪水淹没场景,并结合该流域水文站降雨量数据和各乡镇人口密度数据以及其他辅助数据进行洪水灾害评估。 更多还原

【Abstract】 Aim at characteristics of flood hazard assessment,combined with the GIS and RS technology,according to three-dimensional data provided by DEM and data from remote sensing image,using spatial analysis of GIS to predict,simulationed and showed flood scene of Hongshui River,then integrated rainfall data,population density data of townships and other ancillary data to evaluate disaster induced by flood. 更多还原