Extended Data Figure 7: Gradients of proxy-reconstructed and simulated Northern Hemisphere centennial hydroclimate anomalies along three meridional transects for the tenth, twentieth and seventeenth centuries.
From: Northern Hemisphere hydroclimate variability over the past twelve centuries
The tenth and twentieth centuries were the warmest centuries of the past twelve and the seventeenth century was the coldest. a, Smoothed, surfaced, and contoured weighted average centennial proxy anomalies for the tenth century (top right). The trend of the smoothed surfaced anomaly values, with their regression line, is shown along the meridional transects, passing through the densest data clusters (red line, North America; blue line, Europe and Africa; and black line, Asia). b, c, The same as a but depicting centennial proxy anomalies of hydroclimate for the seventeenth and the twentieth centuries, respectively. d–f, The equivalent analysis for the same centennial periods using median-model simulated values, extracted from the same proxy locations, of centennial precipitation anomalies (see Methods).
