Figure 1

Correlation map between (a) winter (DJF) NAO index and winter precipitation (PP), and (b) temperature (TT) derived from the CRU TS3.24.01 data set54. Green contours outline Romania. Dotted areas indicate correlation coefficients significant at 95% significance level on a standard t-test. The figure was produced using Matlab 2014b (http://de.mathworks.com/products/new_products/release2014b.html).