2018年汾河流域水系分布数据集

利用SRTM3 DEM、SRTM1 DEM、ASTER GDEM和AW3D30 DEM四种不同方式获得的全球DEM数据，以山西省汾河流域为实验区，利用数字地形分析方法和四种DEM数据提取汾河流域的河流水系分布，并将其与通过基于遥感影像目视解译的水系进行对比，获取不同DEM数据在汾河流域的水系提取能力对比结果。

Global DEM data derived from four distinct datasets: SRTM3 DEM, SRTM1 DEM, ASTER GDEM, and AW3D30 DEM. Taking the Fenhe River Basin in Shanxi Province, China as the experimental study area, digital terrain analysis methods were utilized to extract the river system distribution of the Fenhe River Basin from these four DEM datasets. The extracted river systems were then compared with the water system obtained via visual interpretation of remote sensing images, and the comparative results of the water system extraction capabilities of different DEM datasets in the Fenhe River Basin were finally obtained.

搜集汇总

背景与挑战

背景概述

该数据集是2018年汾河流域的水系分布矢量数据，通过整合SRTM3 DEM、SRTM1 DEM、ASTER GDEM和AW3D30 DEM四种数字高程模型，采用数字地形分析方法提取水系，并与基于遥感影像目视解译的结果进行对比，旨在评估不同DEM数据在汾河流域的水系提取能力，为地理研究和水资源管理提供基础数据支持。