Rapid increasing of SST in Kara and Laptev Seas

Despite of possible slow downing of Gulf Stream due to enhancement of water refreshment in Nordic Seas we found a strong positive trend in the August and September SST magnitudes spatially averaged over Kara Sea aqua in 1970s and since 1990 (Fig. 4) when ice melting was activated by arrival of warm Atlantic waters after neutral SST and ice extent phase in 1980s (Figs. 1, 2). It is necessary to note the most rapid SST increasing during last decade when temperature increment achieved 2°C. Spatial maps shows that the monthly SST contrasts between August 2006 and 2003 values exceeded 3°C in the central and eastern parts of Kara Sea. Changes occurred in Arctic Ocean actively impact on atmospheric processes in Northern Siberia.

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Fig. 4. Kara Sea SST (°C) trend for August (dotted line) and September (solid line): 1948-2005.

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Fig. 4. Kara Sea SST (°C) trend for August (dotted line) and September (solid line): 1948-2005.

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