Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.790 IF 4.790
  • IF 5-year value: 5.921 IF 5-year
    5.921
  • CiteScore value: 5.27 CiteScore
    5.27
  • SNIP value: 1.551 SNIP 1.551
  • IPP value: 5.08 IPP 5.08
  • SJR value: 3.016 SJR 3.016
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 63 Scimago H
    index 63
  • h5-index value: 51 h5-index 51
Volume 4, issue 1
The Cryosphere, 4, 53-65, 2010
https://doi.org/10.5194/tc-4-53-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 4, 53-65, 2010
https://doi.org/10.5194/tc-4-53-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  25 Jan 2010

25 Jan 2010

On the potential of very high-resolution repeat DEMs in glacial and periglacial environments

J. Abermann1, A. Fischer2, A. Lambrecht2, and T. Geist3 J. Abermann et al.
  • 1Austrian Academy of Sciences, Commission for Geophysical Research, Vienna, Austria
  • 2Institute of Meteorology and Geophysics, University of Innsbruck, Innsbruck, Austria
  • 3FFG – Austrian Research Promotion Agency/ALR – Aeronautics and Space Agency, Vienna, Austria

Abstract. The potential of high-resolution repeat DEMs was investigated for glaciological applications including periglacial features (e.g. rock glaciers). It was shown that glacier boundaries can be delineated using airborne LIDAR-DEMs as a primary data source and that information on debris cover extent could be extracted using multi-temporal DEMs. Problems and limitations are discussed, and accuracies quantified. Absolute deviations of airborne laser scanning (ALS) derived glacier boundaries from ground-truthed ones were below 4 m for 80% of the ground-truthed values. Overall, we estimated an accuracy of +/−1.5% of the glacier area for glaciers larger than 1 km2. The errors in the case of smaller glaciers did not exceed +/−5% of the glacier area. The use of repeat DEMs in order to obtain information on the extent, characteristics and activity of rock glaciers was investigated and discussed based on examples.

Publications Copernicus
Download
Citation
Share