Monitoring of changes of the shoreline of glaciers and continental ice sheets based on archival and modern open source satellite imagery
Abstract
In the study of environmental changes, the continuous monitoring of land changes in the glacier is now a very important aspect. The use of correct archival data from the first remote sensing satellites is a key issue in the study of global environmental changes. Archival satellite data, in a sense, stand out from the modern images. The necessity to do the temporal analyzes based on these images and, consequently, the development of the shoreline of glaciers and ice sheets is only a seemingly simple task. When we want to achieve high accuracy, we need to apply the appropriate methods of image processing. Due to the low resolution of the open source satellite scene, an algorithm based on wavelet analysis for extracting shoreline details was proposed in the publication. This approach will enable accurate determination of changes in the coastline, which occurred over 30 years.Because the shelf of ice shelf is getting smaller, the glacier that supports inland can slip off into the ocean faster and thus lose mass faster than it gains. This situation is referred to as the "negative mass balance" and it leads directly to the sea level rise. It is estimated that shelf glaciers are the most important factor affecting the stability of the Antarctic ice sheet. Therefore, thanks to the developed method, it will be possible to conducts detailed analysis and documentation of the changing coastline of glaciers, and this will enable research into the change of glaciers and oceans, which is of great importance to the modern world.
- Publication:
-
42nd COSPAR Scientific Assembly
- Pub Date:
- July 2018
- Bibcode:
- 2018cosp...42E1125F