1. a EastFIRE Lab , Center for Earth Observing and Space Research (CEOSR) , George Mason University , MS 5C3, Fairfax, VA 22030, USA
2. b Biosphere Sciences Branch , NASA/GSFC/614.4 , Greenbelt, MD 20771, USA
3. c Science Systems and Applications, Inc. , 10210 Greenbelt Road, Lanham, MD 20706, USA