气候变化领域集成服务门户(CCPortal): The influence of DEM spatial resolution on landslide susceptibility mapping in the Baxie River basin, NW China

CCPortal

DOI	10.1007/s11069-020-03899-9
	The influence of DEM spatial resolution on landslide susceptibility mapping in the Baxie River basin, NW China
	Chen Z.; Ye F.; Fu W.; Ke Y.; Hong H.
发表日期	2020
ISSN	0921030X
起始页码	853
结束页码	877
卷号	101 期号:3
英文摘要	The selection of an appropriate map resolution is highly important for landslide susceptibility assessment. No consistent objective criteria, however, are currently applied to the choice of map resolution. This research, in conjunction with slope units, explores the effect of digital elevation model (DEM) resolution on susceptibility modelling using three statistical models (frequency ratio, index of entropy, and weight of evidence). Seven different spatial resolutions (30, 40, 50, 60, 70, 80, and 90 m) and three statistical models are investigated. For each resolution, we compare the performance of the three models using area under curve (AUC) analysis. The results show that, independent of the statistical models, the best performances are produced at 70 m DEM resolution. This highlights that finer resolutions do not necessarily lead to higher predictive accuracy in landslide susceptibility mapping. Rather, the frequency ratio model seems to be optimal for the coarser resolutions (i.e. 70, 80, and 90 m). © 2020, Springer Nature B.V.
关键词	DEM spatial resolution Frequency ratio Index of entropy Landslide susceptibility Slope units Weight of evidence
英文关键词	accuracy assessment; digital elevation model; hazard assessment; landslide; mapping; river basin; spatial resolution; China
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205631
作者单位	State Key Laboratory of Hydraulic and Mountain River Engineering, Department of Geotechnical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, 610065, China; UMR 8148 GEOPS, Univ. Paris Sud-CNRS-Université Paris-Saclay, Orsay Cedex, 91405, France; Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, 210023, China; State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, 210023, China; Jiangsu Center for Collaborative Innovation in Geographic Information Resource Development and Application, Nanjing, 210023, China
推荐引用方式 GB/T 7714	Chen Z.,Ye F.,Fu W.,et al. The influence of DEM spatial resolution on landslide susceptibility mapping in the Baxie River basin, NW China[J],2020,101(3).
APA	Chen Z.,Ye F.,Fu W.,Ke Y.,&Hong H..(2020).The influence of DEM spatial resolution on landslide susceptibility mapping in the Baxie River basin, NW China.Natural Hazards,101(3).
MLA	Chen Z.,et al."The influence of DEM spatial resolution on landslide susceptibility mapping in the Baxie River basin, NW China".Natural Hazards 101.3(2020).