IGSNRR OpenIR
A modified frequency ratio method for landslide susceptibility assessment
Li, Langping1; Lan, Hengxing1,2; Guo, Changbao3,4; Zhang, Yongshuang3,4; Li, Quanwen1,5; Wu, Yuming1
2017-04-01
Source PublicationLANDSLIDES
ISSN1612-510X
Volume14Issue:2Pages:727-741
Corresponding AuthorLan, Hengxing(lanhx@igsnrr.ac.cn)
AbstractThe frequency ratio method is one of the most widely adopted methods for landslide susceptibility assessment. However, due to the obligatory classifications of landslide-related factors with continuous factor values, the conventional frequency ratio method is complicated by a discontinuity problem of the frequency ratio values and a subjectivity problem. This paper has modified the conventional frequency ratio method and developed a handy geographical information system extension that implements the modified method. Through calculating the frequency ratios for every "identical normalized factor value" instead of for every "factor class," the modified method radically increased the continuity of frequency ratio values and reduced the subjectivity accompanied by the classifications of factors. An automatic and quick assessment of landslide susceptibility becomes possible because the calculations of frequency ratios for different factors in the modified method are constrained by only two uniform parameters (precision and bin width). Two case studies were adopted to inspect the performances of the modified method. From a quantitative point of view, the modified method derives landslide susceptibility models having slightly larger AUC values than the conventional method. From a qualitative point of view, the modified method gives much more detailed variations of frequency ratio with factor value and, as a result, can reveal characteristic fluctuations of frequency ratio and can smoothen the spatial discontinuity of the landslide susceptibility map derived by the conventional method. In practice, this modified frequency ratio method is expected to benefit the landslide susceptibility assessment and get further evaluations in the meantime.
KeywordLandslide susceptibility assessment Frequency ratio Modified GIS extension
DOI10.1007/s10346-016-0771-x
WOS KeywordARTIFICIAL NEURAL-NETWORK ; LOGISTIC-REGRESSION MODEL ; FUZZY-LOGIC APPROACH ; GIS MATRIX-METHOD ; LIKELIHOOD RATIO ; DECISION TREE ; CHINA ; AREA ; VALIDATION ; TURKEY
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[41525010] ; National Science Foundation of China[41421001] ; National Science Foundation of China[41272354] ; National Science Foundation of China[41402321] ; China Geological Survey Project[12120113038000] ; Research Foundation for Youth Scholars of IGSNRR, CAS
Funding OrganizationNational Science Foundation of China ; China Geological Survey Project ; Research Foundation for Youth Scholars of IGSNRR, CAS
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000398889900022
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64535
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLan, Hengxing
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, 11A Datun Rd, Beijing 100101, Peoples R China
2.Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 2R3, Canada
3.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
4.Minist Land & Resources, Key Lab Neotecton Movement & Geohazard, Beijing 100081, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Langping,Lan, Hengxing,Guo, Changbao,et al. A modified frequency ratio method for landslide susceptibility assessment[J]. LANDSLIDES,2017,14(2):727-741.
APA Li, Langping,Lan, Hengxing,Guo, Changbao,Zhang, Yongshuang,Li, Quanwen,&Wu, Yuming.(2017).A modified frequency ratio method for landslide susceptibility assessment.LANDSLIDES,14(2),727-741.
MLA Li, Langping,et al."A modified frequency ratio method for landslide susceptibility assessment".LANDSLIDES 14.2(2017):727-741.
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