1. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
2. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
3. Baldi Designs, Inc., New Bedford, MA, USA
4. United States Department of Agriculture (USDA), United States Forest Service, Fort Collins, CO, USA
5. Department of Electrical and Computer Engineering, University of Massachusetts at Amherst, Amherst, MA, USA