1. Numerical Terradynamic Simulation Group, W.A. Franke College of Forestry and Conservation, The University of Montana Missoula MT USA
2. Department of Earth System ScienceUniversity of California, Irvine Irvine CA USA
3. Jet Propulsion LaboratoryCalifornia Institute of Technology Pasadena CA USA
4. Woods Hole Research Center Falmouth MA USA