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Arctic Sea Surface Temperature Trends in Baffin Bay and Davis Strait

Discover the significant warming trends in sea surface temperatures in the NW Atlantic from 1900 to 2011 and 1979 to 2011. Analyze the accelerated warming across various locations on different time scales.

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Arctic Sea Surface Temperature Trends in Baffin Bay and Davis Strait

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  1. Baffin Bay 0.07 Trends (oC/decade) in Sea Surface Temperature (HadISST1) in the NW Atlantic 1900-2011 S Baffin Bay 0.04 Davis Strait 0.02 S Davis Strait 0.08 • On century time scale (1900-2011): • Increase by ~ 0.1oC/decade in vicinity of 50oN & south • Little change or increase by < 0.06oC/decade north of 52oN 0.05 N Lab Shelf 0.04 -0.02 0.05 Ham Bnk ● S Lab Sea 0.04 0.01 Accelerated warming at all sites in recent decades (by factor >2.5) NE NS -0.01 0.04 0.08 0.1 0.1 ● 0.07 0.05 0.06 0.08 0.12 0.1 0.13 0.11 0.09 0.11 0.09 0.13 0.09 0.15 0.11 0.06 0.08 0.1

  2. Trends (oC/decade) in Sea Surface Temperature (HadISST1) in the NW Atlantic 1900-2011 / 1979-2011 Baffin Bay 0.07 / 0.23 Davis Strait 0.02 / 0.09 • On century time scale (1900-2011): • Increase by ~ 0.1oC/decade in vicinity of 50oN & south • Little change or increase by < 0.06oC/decade north of 52oN 0.05 / 0.56 N Lab Shelf 0.04 / 0.08 -0.02 / 0.37 0.05 / 0.53 ● 0.04 / 0.2 Accelerated warming at all sites in recent decades (by factor >2.5) -0.01 / 0.45 0.04 / 0.26 0.08 / 0.61 0.1 / 0.26 0.07 / 0.54 ● 0.06 / 0.21 0.08 / 0.28 • On tri-decadal time scale (1979-2011): • Widespread increase by 0.2-0.6 oC/decade, with weak tendency for lower on shelves and higher offshore 0.13 / 0.04 0.11 / 0.33 0.09 / 0.39 0.09 / 0.62 0.13 / 0.14 0.15 / 0.32 0.06 / 0.14 0.08 / 0.34 0.1 / 0.31

  3. Baffin Bay 0.23 Trends (oC/decade) in Sea Surface Temperature (HadISST1) in the NW Atlantic 1979-2011 S Baffin Bay 0.15 Davis Strait 0.09 S Davis Strait 0.43 0.56 N Lab Shelf 0.08 0.37 0.53 0.2 ● S Lab Sea 0.41 Accelerated warming at all sites in recent decades (by factor >2.5) 0.45 0.26 0.61 0.3 0.54 ● 0.26 0.21 0.84 0.28 • On tri-decadal time scale (1979-2011): • Widespread increase by 0.2-0.6 oC/decade, with weak tendency for lower on shelves and higher offshore 0.27 0.04 0.33 0.14 0.39 0.62 0.14 0.39 0.32 0.42 0.14 0.34 0.31

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