1. SAIC, Inc.; Beltsville Maryland USA
2. NASA Goddard Space Flight Center; Greenbelt Maryland USA
3. Department of Geography and GeoInformation Science; George Mason University; Fairfax Virginia USA
4. USRA; Columbia MD USA
5. Department of Atmospheric, Oceanic and Earth Sciences; George Mason University; Fairfax Virginia USA
6. Center for Ocean-Land-Atmosphere Studies; Calverton Maryland USA