Место издания:The International Society of Offshore and Polar Engineers (ISOPE) USA
Первая страница:671
Последняя страница:678
Аннотация:This article presents the results of comprehensive research carried out in 2012-2017 by Rosneft Oil Company in cooperation with the Russian Arctic and Antarctic Research Institute, Institute of Geography (Russian Academy of Science), with the participation of Arctic Research Centre. Calving glaciers of Novaya Zemlya, Franz Josef Land and Severnaya Zemlya were examined with airborne radar that allowed to measure their thickness and to build 3D models. Satellite remote sensing data were used to derive glacier fronts position, ice surface flow velocity, changes of glacier margins, and parameters of iceberg distribution. The data on the flow rates of the main glaciers were compared with the satellite beacons equipped with GPS (ARGOS) installed on several glaciers. Systematic differences in the volume of the underwater part for icebergs observed in the winter-spring period and the autumn-summer period are demonstrated. These differences should be taken into account when interpreting satellite remote sensing data or estimating iceberg underwater part. The size distribution of produced icebergs is related to the structure of glaciers. The glacier areas close to flotation, zones of intensive icebergs production, present and potential intensity of icebergs production were assessed. The obtained data can be applied for simulating iceberg production in the Russian Arctic, assessing iceberg risk for offshore oil and gas facilities and ensuring safety of operations in iceberg infested waters as part of geological exploration ice management system.
