鸭绿江流域海拔高度分类数据集
收藏资源简介：
鸭绿江流域最高处为鸭绿江发源地长白山，海拔2745 m，鸭绿江流域最低处位于鸭绿江入海口，海拔0米。全流域面积65215.49 km²。根据DEM数据和海拔高度分类指标，鸭绿江流域海拔高度各类型分布面积及所占比例分别为：<50 m的土地面积1926.22 km²，占流域总面积的2.95%；50-100 m高度的土地面积1327.35 km²，占流域总面积的2.04%；100-200 m高度的土地面积3141.77 km²，占流域总面积的4.82%；200-500 m高度的土地面积15987.50 km²，占流域总面积的24.51%；500-1000 m的土地面积23492.12 km²，占流域总面积的36.02%；1000-1500 m土地面积13868.31 km²，占流域总面积的21.27%；1500-2000 m高度的土地面积5102.53 km²，占流域总面积的7.82%；>2000 m高度的土地面积369.69 km²，占流域总面积的0.57%。数据结果表明，鸭绿江流域80%以上的土地位于海拔高度200-1500 m的中低山，海拔高度在100 m以下的地区仅占流域总面积的5%左右。数据集以栅格.adf格式存储，数据量3.72 MB（压缩为2 MB）。
The highest point of the Yalu River Basin is Changbai Mountain, the source of the Yalu River, with an elevation of 2745 m, while the lowest point is located at the Yalu River Estuary, with an elevation of 0 m. The total area of the basin is 65215.49 km². Based on DEM data and elevation classification indices, the area and proportion of each elevation category in the Yalu River Basin are as follows: - Land area with elevation <50 m: 1926.22 km², accounting for 2.95% of the total basin area; - 50–100 m: 1327.35 km², 2.04% of the total; - 100–200 m: 3141.77 km², 4.82% of the total; - 200–500 m: 15987.50 km², 24.51% of the total; - 500–1000 m: 23492.12 km², 36.02% of the total; - 1000–1500 m: 13868.31 km², 21.27% of the total; - 1500–2000 m: 5102.53 km², 7.82% of the total; - >2000 m: 369.69 km², 0.57% of the total. The data results indicate that over 80% of the land in the Yalu River Basin lies in the low and medium mountainous areas with an elevation of 200–1500 m, while regions below 100 m above sea level account for only approximately 5% of the total basin area. This dataset is stored in raster .adf format, with a data size of 3.72 MB (compressed to 2 MB).
