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Potential ocean–atmosphere preconditioning of late autumn Barents-Kara sea ice concentration anomaly

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Potential ocean–atmosphere preconditioning of late autumn Barents-Kara sea ice concentration anomaly


Authors:  Martin P. King &Javier García-Serrano


Published online:   19th February, 2016



Many recent studies have revealed the importance of the climatic state in November on the seasonal climate of the subsequent winter. In particular, it has been shown that interannual variability of sea ice concentration (SIC) over the Barents-Kara (BK) seas in November is linked to winter atmospheric circulation anomaly that projects on the North Atlantic Oscillation. Understanding the lead–lag processes involving the different components of the climate system from autumn to winter is therefore important. This note presents dynamical interpretation for the ice-ocean–atmosphere relationships that can affect the BK SIC anomaly in late autumn. It is found that cyclonic (anticyclonic) wind anomaly over the Arctic in October, by Ekman drift, can be responsible for positive (negative) SIC in the BK seas in November. The results also suggest that ocean heat transport via the Barents Sea Opening in September and October can contribute to BK SIC anomaly in November

Link to full article (website version): https://www.tandfonline.com/doi/full/10.3402/tellusa.v68.28580?src=recsys


Link to full article (pdf version):  https://www.tandfonline.com/doi/abs/10.3402/tellusa.v68.28580?needAccess=true#aHR0cHM6Ly93d3cudGFuZGZvbmxpbmUuY29tL2RvaS9wZGYvMTAuMzQwMi90ZWxsdXNhLnY2OC4yODU4MD9uZWVkQWNjZXNzPXRydWVAQEAw

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