A 650-year record of past summer temperatures from Pirin, Bulgaria tree-ring density

Matthew Dobbyn Meko1, Valerie Trouet1, Momchil Panayotov2 and David C Frank3, (1)University of Arizona, Laboratory of Tree-Ring Research, Tucson, AZ, United States, (2)University of Forestry, Dendrology Dept., Sofia, Bulgaria, (3)University of Arizona, Tucson, AZ, United States