Review of landslide inventories for Nepal between 2010 and 2021 reveals data gaps in global landslide hotspot

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dc.contributor.authorHarvey EL
dc.contributor.authorKincey ME
dc.contributor.authorRosser NJ
dc.contributor.authorGadtaula A
dc.contributor.authorCollins E
dc.contributor.authorDensmore AL
dc.contributor.authorDunant A
dc.contributor.authorOven KJ
dc.contributor.authorArrell K
dc.contributor.authorBasyal GK
dc.contributor.authorDhital MR
dc.contributor.authorRobinson, Tom
dc.contributor.authorVan Wyk de Vries M
dc.contributor.authorPaudyal S
dc.contributor.authorPujara DS
dc.contributor.authorShrestha R
dc.date.accessioned2024-11-25T20:48:46Z
dc.date.available2024-11-25T20:48:46Z
dc.date.issued2024
dc.description.abstractA review of landslide inventories provides an essential assessment of the state of knowledge around landslide hazard and can guide the focus of future studies. This is especially true in Nepal, which is highly prone to landslides, but lacks a comprehensive overview of landslide occurrence nationally. Here, we compile a database of 117 landslide inventories for Nepal released between 2010 and 2021. We review how these existing inventories shape our understanding of landsliding in Nepal and discuss how future research efforts could mitigate current challenges. We find that 40% of the country was only manually mapped once across the study period, and, crucially, these areas did not always correspond with areas of low landslide susceptibility. Instead, existing landslide inventories typically focus on specific areas, such as the region affected by the 2015 Gorkha Earthquake and major highway corridors. We also extrapolated the individual inventory characteristics from within this unique database to infer a national-scale areal density of 0.05 landslides per km<jats:sup>2</jats:sup>, equating to 6000 landslides across the country. This extrapolated value provides a baseline for future national-scale studies, especially for inventories created through automated mapping approaches. Our review highlights the importance of expanding the footprint of landslide inventories in Nepal to include regions with low mapping coverage and the need for inventories to be openly available, with clear protocols to enable inter-comparison. Whilst our review has focused on Nepal, these findings are likely to be relevant in other landslide-prone countries and our recommendations are intended to be applicable elsewhere.
dc.identifier.citationHarvey EL, Kincey ME, Rosser NJ, Gadtaula A, Collins E, Densmore AL, Dunant A, Oven KJ, Arrell K, Basyal GK, Dhital MR, Robinson TR, Van Wyk de Vries M, Paudyal S, Pujara DS, Shrestha R (2024). Review of landslide inventories for Nepal between 2010 and 2021 reveals data gaps in global landslide hotspot. Natural Hazards.
dc.identifier.doihttp://doi.org/10.1007/s11069-024-07013-1
dc.identifier.issn0921-030X
dc.identifier.issn1573-0840
dc.identifier.urihttps://hdl.handle.net/10092/107745
dc.languageen
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.rightsOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
dc.rights.urihttp://hdl.handle.net/10092/17651
dc.subjectLandslide inventories
dc.subjectLandslide hazard
dc.subjectNepal
dc.subject.anzsrc37 - Earth sciences::3709 - Physical geography and environmental geoscience::370903 - Natural hazards
dc.subject.anzsrc37 - Earth sciences::3709 - Physical geography and environmental geoscience::370901 - Geomorphology and earth surface processes
dc.subject.anzsrc37 - Earth sciences::3709 - Physical geography and environmental geoscience::370906 - Regolith and landscape evolution
dc.titleReview of landslide inventories for Nepal between 2010 and 2021 reveals data gaps in global landslide hotspot
dc.typeJournal Article
uc.collegeFaculty of Science
uc.departmentSchool of Earth and Environment
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