黑龙江流域海拔高度分类数据集

黑龙江流域（亦称阿穆尔河流域-Amur River Basin)由一系列中低山和平原组成，最高处为肯特山海拔2473米，入海口处为0米。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（<50米）、2级（50-100米）、3级（100-200米）、4级（200-500米）、5级（500-1000米）、6级（1000-1500米）、7级（1500-2000米）、8级（>2000米）。统计表明，黑龙江流域海拔高度在500-1000米之间的地域分布面积最大，达803，402.10平方千米，占流域总面积的38.58%；其次是200-500米地区，面积达605，881.74平方千米，占流域总面积的29.10%。其中面积最小的是2000米以上的地区，939.81平方千米，占流域总面积的0.05%。黑龙江流域海拔高度数据集以栅格数据存储，数据格式为.tif，压缩后数据量为64.8MB。

The Heilongjiang River Basin (also referred to as the Amur River Basin) comprises a series of low and medium mountains and plains, with its highest point being the Khentii Mountains at an elevation of 2473 meters above sea level, and the estuary at 0 meters. Based on ASTER-DEM data, after undergoing denoising and reconstruction, the dataset is divided into 8 elevation tiers according to elevation ranges: Tier 1 (<50 m), Tier 2 (50–100 m), Tier 3 (100–200 m), Tier 4 (200–500 m), Tier 5 (500–1000 m), Tier 6 (1000–1500 m), Tier 7 (1500–2000 m), and Tier 8 (>2000 m). Statistical analyses reveal that the area with elevation between 500–1000 meters accounts for the largest proportion in the basin, reaching 803,402.10 square kilometers, which is 38.58% of the total basin area; followed by the region with elevation 200–500 meters, with an area of 605,881.74 square kilometers, accounting for 29.10% of the total basin area. The smallest area is the region above 2000 meters, covering 939.81 square kilometers, which accounts for only 0.05% of the total basin area. The elevation dataset of the Heilongjiang River Basin is stored as raster data in .tif format, with a compressed size of 64.8 MB.

搜集汇总

背景与挑战

背景概述

黑龙江流域海拔高度分类数据集基于ASTER-DEM数据，将流域海拔分为八个等级（<50m至>2000m），其中500-1000m和200-500m区域占比最大。数据集以30米分辨率.tif格式存储，压缩大小为64.8MB，适用于地理和生态研究。