Karst sinkhole mapping using GIS and digital terrain models

Authors

  • Peter Brøgger Sørensen Møllepold 17, 6200 Aabenraa, Denmark
  • Holger Lykke-Andersen Department of Geoscience, Aarhus University, Høegh Guldbergs Gade 2, 8000 Aarhus C, Denmark
  • Peter Gravesen Geological Survey of Denmark and Greenland, Øster Voldgade 10, Copenhagen K, Denmark
  • Bertel Nilsson Geological Survey of Denmark and Greenland, Øster Voldgade 10, Copenhagen K, Denmark

DOI:

https://doi.org/10.34194/geusb.v38.4392

Abstract

Danish glacial landscape elements such as basal till plains, hummocky moraine areas and outwash plains contain a variety of small and large depressions. They were probably formed in glacial, late-glacial or Holocene time and may represent dead-ice holes or degraded pingos, or sinkholes formed by interaction between pre-Quaternary chalk or limestone bedrock and the thin glacial co ver. The aim of this study is to map terrain depressions that might potentially be karst sinkholes by analysing digital terrain models in the geographic information system (GIS). The incentive to apply the technique for mapping of sinkholes came from an accidental acquaintance with a farmer, Jens Kirk, whose farmland is located near Thisted. Jens Kirk told us that the front end of his tractor had suddenly sunk into the ground during routine farming work, and this incident was our inspiration to start the project described here.

Downloads

Download data is not yet available.

Downloads

Published

2017-07-31

How to Cite

Brøgger Sørensen, P., Lykke-Andersen, H. ., Gravesen, P., & Nilsson, B. (2017). Karst sinkhole mapping using GIS and digital terrain models. GEUS Bulletin, 38, 25–28. https://doi.org/10.34194/geusb.v38.4392

Issue

Section

RESEARCH ARTICLE | SHORT

Most read articles by the same author(s)

1 2 > >>