Response of Influence of Internal and External Factors in the Latitudinal Sea Ice Edge Displacement in the Arctic Basin

Inter-annual climatic response of the sea ice edge latitudinal displacement in the Arctic to variability of the large-scale atmospheric circulation (the Arctic Oscillation and North Atlantic Oscillation), location of the Gulf Stream northern boundary and solar activity in 1969–2012 is studied. It is...

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Bibliographic Details
Published in:Physical Oceanography
Main Authors: A.E. Bukatov, A.A. Bukatov, M.V. Babii
Format: Article in Journal/Newspaper
Language:English
Published: Federal State Budget Scientific Institution «Marine Hydrophysical Institute of RAS» 2016
Subjects:
Arctic
sea ice
sea ice edge
dynamics of edge position
Oceanography
GC1-1581
Barents Sea
Bering Strait
Greenland
Norwegian Sea
Arctic Basin
Greenland Sea
North Atlantic
North Atlantic oscillation
Novaya Zemlya
Sea ice
Online Access:https://doi.org/10.22449/1573-160X-2016-6-24-31
https://doaj.org/article/6f431410e383499590f44bedcaf29fbf
Description
Summary:Inter-annual climatic response of the sea ice edge latitudinal displacement in the Arctic to variability of the large-scale atmospheric circulation (the Arctic Oscillation and North Atlantic Oscillation), location of the Gulf Stream northern boundary and solar activity in 1969–2012 is studied. It is noted that the most significant ice edge latitudinal displacements in the intra-annual cycle were observed westward of Novaya Zemlya and in the Bering Strait area. It is shown that, depending on the longitudinal sector, response of the edge geographical position to changes of the atmospheric circulation and the Gulf Stream indices can be manifested both quasi-synchronously and with a delay. Exceptions are the Greenland Sea and the Norwegian Sea areas as well as the Barents Sea western part where ice edge displacements advance the Gulf Stream index variation. The correlation between the edge latitudinal displacement along its perimeter and the Wolf numbers variation is assessed. It is received that the oscillations of cross-correlation functions with a period which is close to 11-year one (Schwabe Cycle) are observed on each longitude at that. In the variations of cross-correlation functions from their average position, solar activity variation is manifested in the edge position displacement with up to two-year delay.

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