focusing on the photobiology and remote sensing of vegetation, with expertise in field and laboratory measurements of plant physiological and spectral optical properties, project management, and satellite remote sensing of ecosystems. Awards GSFC Nordberg Award 2012 GSFC Nordberg Award, 2012 Earth Scientist of Year. NASA/GSFC HOBI Career Achievement Award (Laboratory 614), 2011; NASA/GSFC Performance Awards: 1988, 1991, 1993, 1994, 1995, 1996, 2000, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013. NASA/GSFC Special Achievement, Outstanding Achievement, or Special Act Awards: 1979, 1981, 1993, 2003, 2005, 2008 NASA Group Achievement Award: Eastern Regional Remote Sensing Applications Center, 1983