Analysis of the speed of change of the Werenskiold glacier front for the period 2015-2018
Abstract
Geodetic measurements allow to determine the displacement of natural objects in space and time. Registration of position allows to determine spatial changes in time. In polar regions is very difficult to direct measurements, due to the lack of reference points, the most frequently used measurement method is GNSS measurement in relation to the GPS and GLONASS positioning systems, the results of which are developed in post-processing. The paper presents three stages of measurement of the Werenskioldbreen glacier front in 2015, 2017 and 2018, in the southern part of the island of Spitsbergen, which is part of the Svalbard archipelag. At the same time, measurements of the glacier's forehead in the same summer periods indicate that the Werenskiold Glacier reverses annually by about 25 m. The recorded changes are uneven, the greatest degradation takes place in the central part of the glacier front, before the middle moraine. Measurement and analysis of the photographs indicate the formation of a new central moraine in the southern part of the glacier, which is constantly increasing in size Changes in the position of the front of the glacier are the result of continuous climate change, which leads to degradation of the land glaciers, which is represented by the glacier described in the study.
- Publication:
-
American Institute of Physics Conference Series
- Pub Date:
- March 2020
- DOI:
- 10.1063/5.0000007
- Bibcode:
- 2020AIPC.2209d0003G