Member, ISSI International Team on The Earth's Radiation Belts: Physical Processes and Dynamic Modeling, International Space Science Institute (ISSI), Bern, Switzerland. (2012 - 2013) Deputy Scientific Organizer, Panel on Radiation Belt Environment Models: Wave and Particle Dynamics. COSPAR 2010, Bremen, Germany. (2010 - 2010) Co-Investigator, ECT (Energetic Particle, Composition, and Thermal Plasma) team, NASA Radiation Belt Storm Probe (RBSP) spacecraft mission. (2012 - 2015) Research Area Coordinator (RAC), Inner Magnetosphere and Storms, Geospace Environment Modeling (GEM) Program, National Science Foundation. (2010 - 2015) Member, National Academy Committee on Solar and Space Physics (CSSP). (2005 - 2005)