PMID- 37156952 OWN - NLM STAT- Publisher LR - 20230508 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) DP - 2023 May 9 TI - Ensemble of fuzzy-analytical hierarchy process in landslide susceptibility modeling from a humid tropical region of Western Ghats, Southern India. LID - 10.1007/s11356-023-27377-4 [doi] AB - The western flanks of the Western Ghats are one of the major landslide hotspots in India. Recent rainfall triggered landslide incidents in this humid tropical region necessitating the accurate and reliable landslide susceptibility mapping (LSM) of selected parts of Western Ghats for hazard mitigation. In this study, a GIS-coupled fuzzy Multi-Criteria Decision Making (MCDM) technique is used to evaluate the landslide-susceptible zones in a highland segment of the Southern Western Ghats. Fuzzy numbers specified the relative weights of nine landslide influencing factors that were established and delineated using the ArcGIS, and the pairwise comparison of these fuzzy numbers in the Analytical hierarchy process (AHP) system resulted in standardized causative factor weights. Thereafter, the normalized weights are assigned to corresponding thematic layers, and finally, a landslide susceptibility map is generated. The model is validated using the area under the curve values (AUC) and F1 scores. The result reveals that about 27% of the study area is classified as highly susceptible zones followed by 24% area in moderately susceptible zone, 33% in low susceptible, and 16% in a very low susceptible area. Also, the study shows that the plateau scarps in the Western Ghats are highly susceptible to the occurrence of landslides. Moreover, the predictive accuracy estimated by the AUC scores (79%) and F1 scores (85%) shows that the LSM map is trustworthy for future hazard mitigation and land use planning in the study area. CI - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Gopinath, Girish AU - Gopinath G AD - Department of Climate Variability and Aquatic Ecosystems, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, Kerala, 682508, India. ggkufos@gmail.com. FAU - Jesiya, Nalukudiparambil AU - Jesiya N AD - Department of Environmental Studies, Kannur University, Kannur, 670567, India. FAU - Achu, Ashokan Laila AU - Achu AL AD - Department of Climate Variability and Aquatic Ecosystems, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, Kerala, 682508, India. FAU - Bhadran, Arun AU - Bhadran A AD - Geological Survey of India, North-Eastern Region, Shillong, 793106, India. FAU - Surendran, Udayar Pillai AU - Surendran UP AD - Centre for Water Resources Development and Management (CWRDM), Kozhikode, Kerala, 673 571, India. LA - eng PT - Journal Article DEP - 20230509 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 SB - IM OTO - NOTNLM OT - Fuzzy-AHP OT - GIS OT - India OT - Kerala OT - Landslides OT - Western Ghats EDAT- 2023/05/09 00:42 MHDA- 2023/05/09 00:42 CRDT- 2023/05/08 23:25 PHST- 2022/09/18 00:00 [received] PHST- 2023/04/27 00:00 [accepted] PHST- 2023/05/09 00:42 [medline] PHST- 2023/05/09 00:42 [pubmed] PHST- 2023/05/08 23:25 [entrez] AID - 10.1007/s11356-023-27377-4 [pii] AID - 10.1007/s11356-023-27377-4 [doi] PST - aheadofprint SO - Environ Sci Pollut Res Int. 2023 May 9. doi: 10.1007/s11356-023-27377-4.