Marusazh K. Development of the methodology for a complex study of volumes changes of island glaciers on the Antarctic coast

The dissertation work consists in the development of the methodology for complex research of volume changes of the island glaciers on the Antarctic coast by the methods of terrestrial laser scanning and terrestrial photogrammetry. The current state of glaciers research in the Antarctic region are considered. Methods for monitoring glaciers are considered and analyzed and their classification is proposed. The corresponding conclusions concerning advantages and disadvantages of methods application are formed. Methods for determining the focal length of a digital non-metric camera were developed, their research and testing were performed. The influence of distortion of digital non-metric cameras was investigated. A study of the investigation of points cloud by terrestrial laser scanning depending on the distance to the scanning object and the characteristics of the scanning surface was presented. Proposed methodology for a complex study of volumes changes of island glaciers on the Antarctic coast was presented. The main stages of the workflow are highlighted and recommendations for their implementation are given. The application of the proposed methodology for monitoring glaciers on the islands Winter and Galindez during 2013-2014 and 2014-2018 are presented. Analysis of the results and previous research allows us to conclude that during 2013-2019, the Galindez Glacier has lost up to 3% of its total volume, and the Winter Glacier has lost up to 2%.