Preliminary landslide mapping in Denmark indicates an underestimated geohazard

IF 2 4区 地球科学 Q1 GEOLOGY
K. Svennevig, Gregor Luetzenburg, M. Keiding, Stig A. Schack Pedersen
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引用次数: 5

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.
丹麦的初步滑坡测绘表明,地质灾害被低估了
丹麦公众和决策者都熟知海岸侵蚀的过程;然而,人们很少意识到更大的山体滑坡带来的风险。只有少数科学研究调查了丹麦的山体滑坡,因此,该国在国际山体滑坡清单中代表性不足。在这里,我们提出了基于数字高程模型和高分辨率正射影像的系统生成的初步滑坡清单。到目前为止,初步调查记录了靠近海岸和内陆的山体滑坡的3026个形态学表现,表明山体滑坡在丹麦的分布比以前认识到的要广泛。其中一些滑坡发生在建筑物和基础设施附近。因此,本文强调了丹麦在全国范围内发生地质危险滑坡的可能性,并讨论了一些影响。本研究提出的两个主要问题是:(1)在一个没有滑坡灾害和风险管理框架或先例的国家,如何处理潜在的地质灾害;(2)在气候变化的情况下,丹麦的滑坡和相关风险将如何演变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geus Bulletin
Geus Bulletin GEOLOGY-
CiteScore
2.80
自引率
17.60%
发文量
8
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