Figure 5

Relationship between the threshold correlation coefficient and the associated typical spatial scale for surface temperatures (a), and precipitations (b) in the two main directions. The typical spatial scales corresponding to different thresholds of correlation coefficient (from 0.25 to 0.95 with a 0.05 increment) were determined and are represented by the four different symbols. The four lines are fitted exponential functions of the decays of the correlations with increasing distance.