渭河流域海拔高度分类数据集

渭河是黄河的重要支流，渭河流域地形复杂，海拔高度从227米至3934米，是海拔高度变化最明显的地区之一。在ASTER-DEM数据基础上，经数据除噪、重建，按照海拔高度的变化，划分为８个等级，分别为：1级（200-500米）、2级（500-1000米），之后，每500米划分一个等级，直至第8级（3500-4000米）。统计数据得出，渭河流域海拔高度在1000-1500米之间的地域分布面积最大，面积达56018.21平方千米，占流域总面积的41.58%；其次是1500-2000米地区，面积达37999.48千米，占流域总面积的28.20%。其中面积最小的是3500米以上的地区，占流域总面积的0.01%。渭河流域海拔高度分类数据集以栅格数据存储，数据格式为.tif，压缩后数据量为4.43MB。

The Wei River is an important tributary of the Yellow River. The Wei River Basin has complex topography, with elevation ranging from 227 m to 3934 m, making it one of the regions with the most significant elevation changes. Based on ASTER-DEM data, after data denoising and reconstruction, the basin is divided into 8 elevation tiers according to elevation variations: Tier 1 (200–500 m), Tier 2 (500–1000 m), with subsequent tiers set at 500 m intervals until Tier 8 (3500–4000 m). Statistical analysis shows that the area with elevation between 1000–1500 m is the largest in the basin, covering 56018.21 square kilometers and accounting for 41.58% of the total basin area; followed by the 1500–2000 m zone, with an area of 37999.48 square kilometers, accounting for 28.20% of the total. The smallest area is regions above 3500 m, which only accounts for 0.01% of the total basin area. The Wei River Basin elevation classification dataset is stored as raster data in .tif format, with a compressed size of 4.43 MB.

搜集汇总

背景与挑战

背景概述

渭河流域海拔高度分类数据集是一个30米分辨率的栅格数据，基于ASTER GDEM 2和部分SRTM数据开发，将渭河流域的海拔分为8个等级，最高达3934米。数据集以tiff格式存储，压缩后大小为4.43MB，适用于地理科学和地貌学等领域的研究。