Fig. 1: Interannual variation of WACC. | npj Climate and Atmospheric Science

Fig. 1: Interannual variation of WACC.

From: Arctic-associated increased fluctuations of midlatitude winter temperature in the 1.5° and 2.0° warmer world

Fig. 1

Regression coefficient of 850hPa temperature anomalies with respect to (a) the Barents-Kara sea (30°–70°E, 70°–80°N) and (b) East Siberia Chukchi sea (160°–200°E, 65°–80°N) 850hPa temperature anomalies during 1979/80-2017/18 winters from ERA-interim daily reanalysis data. Middle shows the regression coefficient from 1979 to 2018. Left and right shows the regression coefficient that is analyzed for 90 days when the regression coefficient is the smallest and biggest. c, d Time series of the regression coefficients of 850hPa temperature anomalies in East Asia (105°–125°E, 47°–55°N) and North America (255°–275°E, 45°–53°N) with respect to the Barents-Kara sea (30°–70°E, 70°–80°N) and East Siberia Chukchi sea (160°–200°E, 65°–80°N) 850hPa temperature anomaly during 1979/80-2017/18 winters (DJF), respectively. Black boxes indicate (a) the East Asia (105°–125°E, 47°–55°N) and (b) North America (255°–275°E, 45°–53°N). Blue boxes indicate (a) the Barents-Kara sea (30°–70°E, 70°–80°N) and (b) East Siberia Chukchi sea (160°–200°E, 65°–80°N).

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