The new high-resolution LiDAR digital height model (‘Ny Nationell Höjdmodell’) and its application to Swedish Quaternary geomorphology

Abstract

This letter outlines the abilities and potential applications of the Swedish ‘Ny Nationell Höjdmodell’ (new national height model), with particular reference to the mapping of Quaternary landforms. The application of high-resolution, light-detection and ranging data allows the mapping of terrain in an unprecedented level of detail, even under dense forest cover that has previously hidden key features from view. The new data set can be applied in a variety of ways: from digital morphological analysis to the production of field reconnaissance maps when combined with geographical information systems (GIS) layers such as access routes and landownership. It is hoped that this will start a national effort of applying the new national height model across the geological sciences. Encouraging cooperation and collaboration across interested parties within Sweden is vital in order to get the most out of this rich new source of data.

Keywords:

• light detection and ranging
• geomorphology
• digital elevation model
• glacial geology

Acknowledgements

The authors would like to thank Mark Johnson and Clas Hättestrand for comment and discussion related to the use of the NNH and cooperation within Sweden, and Karin Larsson for technical support.