A new slope unit extraction method for regional landslide analysis based on morphological image analysis

doi:10.1007/s10064-018-1389-0

	A new slope unit extraction method for regional landslide analysis based on morphological image analysis
	Wang, Kai 2,3; Zhang, Shaojie 3; DelgadoTellez, Ricardo 3; Wei, Fangqiang1
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2019-09-01
卷号	78 期号:6 页码:4139-4151
关键词	Slope unit Homogeneity assumption Slope stability analysis Morphology image analysis
ISSN号	1435-9529
DOI	10.1007/s10064-018-1389-0
通讯作者	Zhang, Shaojie(sj-zhang@imde.ac.cn)
英文摘要	In landslide analysis it is necessary to first define and extract slope units from remotely sensed data. When this is done using hydrological process analysis, there can be complications caused by apparent sudden changes in slope gradient, resulting in the assumption of homogeneity of regional slope stability not being met. This issue is addressed in this paper with the proposal of a novel slope unit extraction method, which is derived from morphological image analysis (MIA) and results in the extraction of homogeneous slope units (HSU). It is thus referred to as the MIA-HSU method. In this method, slope units are defined as small, closed and homogeneous in 3D space. The MIA method uses logical algorithms, such as expansion and erosion, to extract slope units. Jiangjia Gully, Yunnan Province, China was selected to test the MIA-HSU method. Results indicate that slope units extracted by this method overcome defects of sudden changes in slope gradient and are able to identify geographical features meaningful for further landslide analysis. The MIA-HSU method presents a more uniform slope and aspect, and is better suited to regional landslide analysis than data obtained using the hydrological process analysis method.
资助项目	Science and Technology Service Network Initiative[KFJ-SW-STS-180] ; Chongqing Municipal Bureau of Land, Resources and Housing Administration[KJ-2018005] ; Edanz Group China
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000482240400020
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9608]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Zhang, Shaojie
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Zhongyuan Univ Technol, Inst Civil Engn, Zhengzhou 450007, Henan, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Kai,Zhang, Shaojie,DelgadoTellez, Ricardo,et al. A new slope unit extraction method for regional landslide analysis based on morphological image analysis[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(6):4139-4151.
APA	Wang, Kai,Zhang, Shaojie,DelgadoTellez, Ricardo,&Wei, Fangqiang.(2019).A new slope unit extraction method for regional landslide analysis based on morphological image analysis.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(6),4139-4151.
MLA	Wang, Kai,et al."A new slope unit extraction method for regional landslide analysis based on morphological image analysis".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.6(2019):4139-4151.