Climate changes in the Barents Sea over the last half century
Abstract
The Barents Sea, being a transition area between the North Atlantic and the Arctic Basin, plays a key role in water exchange between them. Atlantic waters enter the Arctic Basin through the Barents Sea and the Fram Strait. Variations in volume flux, temperature and salinity of Atlantic waters affect hydrographic conditions in both the Barents Sea and the Arctic Ocean and are related to large-scale atmospheric pressure systems. In this paper, meteorological and oceanographic conditions of the Barents Sea were analyzed over the last half century. An attempt was made to formulate integral indices for characterizing the thermohaline conditions of the Barents Sea as a whole. Using them, since 1965, large periods with different thermal (warm/cold) and haline (fresh/saline) conditions were found. A stable warm period in the Barents Sea has been observed since 2000. Since 2005, the sea waters have been the warmest and the most saline for the entire considered period. The year of 2016 was characterized as a record warm in the sea as a whole.
About the Authors
A. G. Trofimov
N. M. Knipovich Polar Research Institute of Marine Fisheries and Oceanography (FSBSI «PINRO»)
Russian Federation
Russian Federation
Murmansk
A. L. Karsakov
N. M. Knipovich Polar Research Institute of Marine Fisheries and Oceanography (FSBSI «PINRO»)
Russian Federation
Russian Federation
Murmansk
V. A. Ivshin
N. M. Knipovich Polar Research Institute of Marine Fisheries and Oceanography (FSBSI «PINRO»)
Russian Federation
Russian Federation
Murmansk
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Review
For citations:
Trofimov A.G., Karsakov A.L., Ivshin V.A. Climate changes in the Barents Sea over the last half century. Trudy VNIRO. 2018;173:79-91. (In Russ.)
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