- Associate Editor, IEEE Transactions on Geoscience and Remote Sensing, 2005-present
- Associate Editor, J. Electromagnetics Waves and Applications, 2008-present
- Guest Co-Editor, IEEE JSTARS, Special Issue on Microwave Remote Sensing for Land Hydrology Research and Applications, 2009
- Chapter Chair, IEEE-GRS Southeastern Michigan, 2005-present
- Guest Editor, IEEE Transactions on Instrumentation and Measurement, ICONIC07 Special Issue.
- Science Team, Japanese Earth Exploration Agency ALOS/PALSAR mission
- Science Definition Team, NASA Soil Moisture Active/Passive (SMAP) mission, 2008-2012
- Chair, Algorithms Working Group, SMAP mission, 2008-2012
- Chair, SMAP 2nd Algorithms Workshop, to be held March 2010
- Co-Chair, SMAP Algorithms and Cal/Val Workshop, June 2009
- Steering Committee, Microwave Land Hydrology Workshop, October 2008
- Co-Chair, NASA ESTO Radar Technology Panel, 2003
- Member, NASA Surface Water Working Group
- Member, NASA ESTO Radar/Radiometer Technology Working Group
- Thesis Opponent, Chalmers University of Technology, Sweden, May 2007
- Organizer of numerous conference sessions
- Chair/Co-Chair of numerous conference sessions
- Member of Technical Program Committees, multiple conferences
Recognitions
- Fellow, IEEE
- Education Excellence Award, College of Engineering, The University of Michigan (2009)
- Elected member of URSI Commission B
- Member of Phi Kappa Phi, Tau Beta Pi, Eta Kappa Nu (Vice President, 1985-1986)
- NASA Certificate of Recognition: Dual low-frequency radar for soil moisture under vegetation and at-depth
- NASA Certificate of Recognition: Single-chip high-density FPGA implementation of the SAR azimuth prefilter
- NASA Certificate of Recognition: Dual frequency stacked-patch array for large aperture antenna feed
- NASA Group Achievement Award: Cassini Program, Cassini Radar Team
- NASA Certificate of Recognition: Cassini Program, Cassini Radar Team
