Professional Scientific Service

• American Geophysical Union (AGU)
• Fellow since 2009
• Member from 1984 - Present
• American Institute for Astronautics and Aeronautics
• Member, 2010 - Present
• American Meteorological Society (AMS)
• Fellow since 2010
• Member, 1977 - Present
• Editor, Journal of the Atmospheric Sciences, 2004-2009
• Associate Editor, Journal of the Atmospheric Sciences, 1999-2001
• Member of Atmospheric Radiation Committee, 1994-1997
• Intergovernmental Panel on Climate Change (IPCC)
• Reviewer, IPCC WG-1 Fourth Assessment Report, Climate Change 2007
• Lead Author, IPCC Special Report on Aviation and Global Atmosphere, 1999
• Other Institutions
• Member, CGMS Working Group on Operational Cloud Parameter Retrievals, 2013-present
• Member, Research Working Group, Global Satellite InterCalibration System (GSICS), 2010-present
• Member, Organizing Committee, 2010 Eumetsat Satellite Conference
• Member, Organizing Committee, 2011 AIAA 3rd Atmosphere and Space Environment Conference
• Member, Organizing Committee, 2012 3rd International Conference on Transport, Atmos. and Climate
• Member, CIMSS Advisory Board (Madison, WI), 2001-Present
• Member, PhD Committee, Ecole Polytechnique, Paris, France, 2003-2005
• Member, GEWEX Working Group V - Polar Clouds, 1999-Present
• Member, ARESE-II Mission Plan Drafting Committee, 1997-1999
• Member, PhD Committee, SUNY, Stony Brook, NY 1997-1999
• Member, ARM-UAV Science Plan Drafting Panel, 1995-1998
• Mentor, NASA LARSS Program, 1996-1997
• Mentor, International graduate student, 1997
• Member, ISCCP Cloud Algorithm Working Group, 1981-1996
• Member, EOS Hydrology and Physical Climate Panel, 1989-1995
• Member, FIRE III Science & Implementation Plan Drafting Panels, 1993-1995
• Member, NASA AEAP, Science Plan Drafting Panel. 1994-1995,