The Mexican Drought Atlas: Tree-ring reconstructions of the soil moisture balance during the late pre-Hispanic, colonial, and modern eras

The Mexican Drought Atlas uses 252 climate sensitive tree-ring chronologies to reconstruct the summer Palmer Drought Severity Index at 1501 0.5° latitude/longitude grid points over Mexico and adjacent land areas. Four severe droughts are depicted here, including three previously documented events (a,c,d) and the reconstructed drought that afflicted much of Mexico soon after Conquest (b).393