Extended Data Figure 5: Simulated median values of annual precipitation from six atmosphere–ocean coupled general circulation models.
From: Northern Hemisphere hydroclimate variability over the past twelve centuries

a, Raw, centennial, model anomaly median values calculated and treated and plotted in the same way as the hydrological proxy data. Only values from the same grid cells that are covered by proxy records are extracted (Methods). Anomalies are shown relative to the centennial mean and standard deviation over the eleventh–nineteenth centuries. The colour scale in both panels is truncated at −2 and 2. b Gridded, weighted, values for the same data over land areas with at least three independent grid values within the estimated centennial correlation decay length for centennial-scale hydrological variability.