1. a Center for the Study of Earth from Space (CSES)/Cooperative Institute for Research in Environmental Sciences (CIRES), and Department of Geological Sciences , University of Colorado , Campus Box 250, Boulder, CO 80309-0250
2. b Department of Geological Sciences , University of Colorado , Campus Box 250, Boulder, CO 80309-0250
3. c Center for the Study of Earth from Space (CSES)/Cooperative Institute for Research in Environmental Sciences (CIRES), and Department of Geological Sciences , University of Colorado , Campus Box 250, Boulder, CO 80309-0250