California Institute of Technology Environmental Science and Engineering Division of Geological and Planetary Sciences, 1200 E. California Blvd. MS 100-23, Pasadena, CA 91125 United States
Jet Propulsion Laboratory California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109 United States
California Institute of Technology Environmental Science and Engineering Division of Geological and Planetary Sciences, 1200 E. California Blvd. MS 100-23, Pasadena, CA 91125 United States; University of California, Irvine Earth System Science Department, 3212 Croul Hall, Irvine, CA 92697 United States