中国地形起伏度公里网格数据集

地形起伏度是区域海拔高度和地表切割程度的综合表征｡在参考封志明等(2007)中国人居环境评价背景下的地形起伏度定义及其计算公式基础上，将数字高程模型（SRTM 90 m）数据重采样成1 km，运用模型计算得到中国陆地地形起伏度公里网格数据集｡该数据集包括：（1）中国全国和分省地形起伏度公里网格空间数据；（2）中国分省､分地区和分县的地形起伏度统计数据。数据集存储为ARCGIS GRID和xlsx格式，由522个数据文件组成，数据量为126 MB（压缩为1个文件，11.2 MB）｡

Topographic relief is a comprehensive indicator of regional elevation and surface incision. Drawing on the definition and calculation formula of topographic relief proposed by Feng et al. (2007) in the context of China's human settlement environment evaluation, we resampled the SRTM 90 m Digital Elevation Model (DEM) data to a 1 km spatial resolution, and calculated the kilometer-grid topographic relief dataset for China's terrestrial area. This dataset includes two parts: (1) Kilometer-grid spatial data of topographic relief at the national and provincial levels across China; (2) Statistical data of topographic relief at the provincial, prefectural and county levels in China. The dataset is stored in ArcGIS Grid and XLSX formats, consisting of 522 data files with a total uncompressed size of 126 MB (compressed into a single file of 11.2 MB).

搜集汇总

背景与挑战

背景概述

该数据集是中国地形起伏度的1公里分辨率空间数据集，基于数字高程模型和Feng(2007)模型计算生成，涵盖了全国及各省份的地形起伏度分布和统计信息。数据以ARCGIS GRID和Excel格式存储，包含522个文件，总大小为126 MB，适用于地理和地形分析研究。