Results of the Expedition to the North Pole on the Icebreaker “50 Let Pobedy”
https://doi.org/10.31857/S2587-556620195131-140
Abstract
The article presents the results of the expeditionary investigations carried out from the “50 Let Pobedy” nuclear icebreaker to research the present physiographic conditions of the Barents Sea and the Arctic Ocean and estimations of the main features that may reflect the global climatic variability of the seas and oceans of the Arctic. The observations of the ice lanes, hummocks, puddles, icebergs, the thickness and closeness of ice allowed us to make a real picture of the ice cover in the second half of August 2017. The zonal distribution of drifting ice, air temperature, temperature and salinity of seawater is shown. The results of observations and conclusions presented in the article reflect the simultaneous situation of the most western part of the Central Arctic adjacent to the Norwegian-Greenland basin. The analysis of new data of the structure and distribution of sea ice and icebergs gives a reason to present a number of general conclusions about the variability of ice thickness and closeness, relative age, the ratio of the area covered with ice and pure water. Recommendations about the development of new satellite systems for a reliable assessment of the seasonal and inter-annual dynamics of the area and thickness of sea ice in the Arctic Ocean are presented.
About the Authors
G. G. Matishov
Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences; Murmansk Marine Biological Institute, Russian Academy of Sciences
Russian Federation
Russian Federation
A. V. Kleshchenkov
Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
E. E. Kirillova
Federal Research Center the Southern Scientific Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
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Graphical Abstract
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1. Экспедиция на Северный полюс на ледоколе “50 лет Победы” в 2017 г. | |
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2. Expedition to the North Pole on the icebreaker 50 Let Pobedy in 2017 | |
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- In the direction from the ice edge to the North Pole, the thickness of the ice cover increases by 2 times (from 0.5–0.9 meters to 1.5–2 meters) and its age increases up to 2–3 years. Hummocks are more common.
- The ice along the icebreaker’s route consisted mainly of the ice of two sizes in thickness: two-meter and one and a half meter. The first ones occupied about 50–70% of the visible area, the second ones occupied about 10–25%. Wormwood and cracks accounted for about 10–15% of the area.
Review
For citations:
Matishov G.G., Kleshchenkov A.V., Kirillova E.E. Results of the Expedition to the North Pole on the Icebreaker “50 Let Pobedy”. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2019;(5):131-40. (In Russ.) https://doi.org/10.31857/S2587-556620195131-140
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