Vol. 44 | 2020

Preliminary landslide mapping in Denmark indicates an underestimated geohazard

RESEARCH ARTICLE | SHORT
Published November 9, 2020
Kristian Svennevig
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Gregor Lützenburg
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Marie K. Keiding
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Stig Asbjørn Schack Pedersen
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RESEARCH ARTICLE | SHORT
Published November 9, 2020
Map of Denmark showing locations of geohazards
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Keywords

Landslides, Geohazard, climate change, Denmark, landslide inventory

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Copyright (c) 2020 Kristian Svennevig, Gregor Lützenburg, Marie K. Keiding, Stig Asbjørn Schack Pedersen

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

GEUS Bulletin is an open-access, peer-reviewed journal published by the Geological Survey of Denmark and Greenland (GEUS). This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents. Read the full open access policy.

Abstract

The process of coastal erosion is well known to the public and decision-makers in Denmark; however, there is little awareness of the risks posed by larger landslides. Only a few scientific studies investigate landslides in Denmark, and as a result, the country is underrepresented in international landslide inventories. Here, we present a systematically produced preliminary landslide inventory based on digital elevation models and high-resolution orthophotos. So far, the preliminary inventory documents 3026 morphological expressions of landslides close to the coast and inland, showing that landslides are more widespread in Denmark than previously recognised. A number of these landslides are near buildings and infrastructure. This paper therefore highlights the potential for geohazardous landslides to occur in Denmark on a national scale and discusses some of the implications. Two of the major questions arising from this study are (1) how to approach potential geohazards in a country with no framework or precedence for landslide hazard and risk management and (2) how landslides and associated risk in Denmark will evolve under a changing climate.

Keywords

Landslides, Geohazard, climate change, Denmark, landslide inventory

License

Copyright (c) 2020 Kristian Svennevig, Gregor Lützenburg, Marie K. Keiding, Stig Asbjørn Schack Pedersen

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

GEUS Bulletin is an open-access, peer-reviewed journal published by the Geological Survey of Denmark and Greenland (GEUS). This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents. Read the full open access policy.

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