Fig. 10 | Climate Dynamics

Fig. 10

From: North Atlantic gyre circulation in PRIMAVERA models

Fig. 10

Cross-correlation between the NAO index (leading) and the SPG index after filtering the time series with a 7 years low-pass filter. One ensemble member for each model configuration is plotted in a and the mean curve and members’ spread are plotted in c. The area enclosed by dotted lines represents the 95% confidence levels calculated as 2/sqrt(N), where N is the number of independent data based on the time that takes autocorrelation to fall below 1/e. Positive lags mean NAO leads SPG, negative lags mean SPG leads NAO

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