Terrain factors can represent the basic features of the terrain surface, but it is difficult to express the features of the terrain accurately and concretely with one terrain factor. Therefore, various terrain factors can be considered comprehensively to depict the undulation and change of the terrain surface to a certain extent, which has a good effect
The terrain factors included in this dataset include micro terrain factors and macro terrain factors. The micro terrain factors include slope, slope direction, slope variability, slope direction variability, plane curvature, section curvature, comprehensive curvature, etc; There are 12 macro terrain factors, including terrain roughness, terrain undulation, elevation variation coefficient and surface cutting depth
The spatial resolution of the data is 30m, and the data is in grid format.
The data source used for the data is DEM. From geospatial data cloud（ http://www.gscloud.cn/search ）Get.
After stitching multiple Dems, the Dems are trimmed by using the vector boundary of the 200 km extension of the earthquake epicenter, and finally the terrain factor data products of the earthquake area are obtained.
The data quality is good.
This work is licensed under a
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Commons Attribution 4.0 International License.
CSTR:11738.11.ncdc.NCDC.db2461.2022
10.12072/ncdc.NCDC.db2461.2022