Spatiotemporal drought variability in the Mediterranean over the last 900 years

Benjamin I Cook, NASA Goddard Institute for Space Studies, New York, United States, Kevin J Anchukaitis, University of Arizona, Laboratory of Tree-Ring Research, Tucson, United States, Ramzi Touchan, University of Arizona, Tucson, AZ, United States, David M Meko, University of Arizona, Laboratory of Tree Ring Research, Tucson, AZ, United States and Edward R Cook, Lamont-Doherty Earth Observatory, Palisades, United States