In today’s RHESSys lab meeting, Aubrey Dugger presented the work she has been doing utilizing tree ring data to validate her RHESSys model runs in the Santa Fe municipal watershed, and Ian McCullough presented the work he will be doing in the Tejon watershed utilizing tree ring data. We were fortunate to have Tom Swetnam, director of the laboratory of tree ring research at the University of Arizona College of Science, as a guest at our lab meeting today to give his feedback on their work and share his expertise on using tree ring data with us. Tom also presented at last week’s Bren colloquium – “Reaping the Whirlwind: Wildfire and Climate Change in the Western United States”.