Henri Grissino Mayer

Henri Grissino-Mayer is a Full Professor of Geography and Director of the Laboratory of Tree-Ring Science at the University of Tennessee, Knoxville. Grissino-Mayer is a dendrochronologist who specializes in the use of tree-ring analysis to reconstruct environmental and cultural history. He received a BS (with honors) in Geography in 1985 and a MS in Geography in 1988 from the University of Georgia. His thesis research directed by David Butler (now at Texas State University, San Marcos) investigated the relationships between climate and growth of shortleaf pine in north-central Georgia. He completed his Ph.D. under Tom Swetnam in the Laboratory of Tree-Ring Research at the University of Arizona in 1995. His dissertation research was conducted at El Malpais National Monument in New Mexico where he reconstructed precipitation and wildfire activity for the last 2,000 years. Grissino-Mayer has published over 90 peer-reviewed articles during his career. His work has appeared in high impact journals such as Ecology, Holocene, International Journal of Wildland Fire, and Journal of Archaeological Science and has been featured on the Discovery Channel, the History Channel, and the Weather Channel.