Yonsook Enloe, Science Systems and Applications, Inc., Lanham, MD, United States, Christopher Lynnes, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Helen Conover, University of Alabama in Huntsville, Huntsville, AL, United States, Allan Doyle, International Interfaces, Natick, MA, United States, Yaxing Wei, Oak Ridge National Laboratory, Oak Ridge, TN, United States and John Scialdone, Columbia University of New York, Center for International Earth Science Information Network (CIESIN), Palisades, NY, United States