武汉市潜在淹没区数据集(2020）

武汉市2020年潜在淹没区数据集。该数据基于汉口水文站警戒水位，利用SRTM DEM数据，在面状数字高程模型上提取武汉市等于及小于警戒水位线的空间范围。同时，结合长江干流水系分布数据，排除小于警戒水位范围内的不连通区域，利用流域范围，得到武汉市潜在淹没区范围。

Wuhan 2020 Potential Submerged Area Dataset. This dataset is developed based on the warning water level of the Hankou Hydrological Station. Using SRTM DEM data, the spatial extent within Wuhan where the elevation is equal to or lower than the warning water level is extracted from the planar digital elevation model. Meanwhile, combined with the distribution data of the Yangtze River mainstream water system, disconnected areas within the region with elevation lower than the warning water level are excluded, and the final potential submerged area extent of Wuhan is determined using the watershed boundary.

搜集汇总

背景与挑战

背景概述

该数据集为2020年武汉市潜在淹没区范围数据，基于汉口水文站警戒水位和SRTM DEM数据生成，通过提取等于及小于警戒水位线的区域并结合长江干流水系排除不连通部分，得到连续性的潜在洪水淹没区。数据采用Albers双纬线圆锥投影，经过严格质量审查，适用于地理学和洪涝灾害相关研究。