FEATURES OF ICEBERG UAS SURVEY PHOTOGRAMMETRIC PROCESSING
The Arctic zone plays a huge role in the development of industry engaged in the extraction and transportation of hydrocarbons. The search and discovery of new deposits and transport of raw materials over long distances in the polar zone is carried out slowly. The reason is the difficulties of navigation due to the unpredictable movement of the breakaway parts of ice shelves - icebergs. The study of shapes and sizes is part of the methodology for predicting the location of icebergs. The article presents the results of photogrammetric processing and analysis of iceberg digital surface models in various software products. The dataset includes 2.2cm ground resolution aerial images taken from the DJI Mavic 2 Zoom drone. The metadata of images contain telemetry with coordinates of projection centers from an onboard single-frequency GPS receiver. There are no reference and control points on the object. The analysis of the processing results made it possible to reveal the dependence of the relative position and detail of the iceberg DSM and the parameters of automatic algorithms. It was possible to choose the parameters of automatic processing algorithms specifically for this type of object, like an iceberg.