Xi Yang¹, David A Lutz², Manuel Lerdau³, Michael W Palace⁴, Adrianna Foster³ and Herman Henry Shugart³, (1)University of Virginia, Environmental Sciences, Charlottesville, VA, United States, (2)Dartmouth College, Hanover, NH, United States, (3)University of Virginia Main Campus, Charlottesville, VA, United States, (4)University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, NH, United States