A national landslide inventory for Denmark

Gregor Luetzenburg, Kristian Svennevig, Anders A. Bjørk, Marie Keiding, Aart Kroon

Research output: Contribution to journalArticleResearchpeer-review

6 Citations (Scopus)

Abstract

Landslides are a frequent natural hazard occurring globally in regions with steep topography. Additionally, landslides play an important role in landscape evolution by transporting sediment downslope. Landslide inventory mapping is a common technique to assess the spatial distribution and extent of landslides in an area of interest. High-resolution digital elevation models (DEMs) have proven to be useful databases to map landslides in large areas across different land covers and topography. So far, Denmark had no national landslide inventory. Here, we create the first comprehensive national landslide inventory for Denmark derived from a 40ĝ€¯cm resolution DEM from 2015 supported by several 12.5ĝ€¯cm resolution orthophotos. The landslide inventory is created based on a manual expert-based mapping approach, and we implemented a quality control mechanism to assess the completeness of the inventory. Overall, we mapped 3202 landslide polygons in Denmark with a level of completeness of 87ĝ€¯%. The complete landslide inventory is freely available for download at 10.6084/m9.figshare.16965439.v2 (Svennevig and Luetzenburg, 2021) or as a web map (https://data.geus.dk/landskred/, last access: 6 June 2022) for further investigations.

Original languageEnglish
Pages (from-to)3157-3165
Number of pages9
JournalEarth System Science Data
Volume14
Issue number7
DOIs
Publication statusPublished - 11 Jul 2022

Programme Area

  • Programme Area 5: Nature and Climate

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