Elizabeth Pattey, Ph.D., leads the micrometeorology laboratory at Agriculture and Agri-Food Canada’s (AAFC) Ottawa Research and Development Centre. She specializes in trace gas flux measurement techniques, process-based models verification, and remote-sensing applications. Her research focuses on developing and improving trace gas flux measurement techniques to quantify greenhouse gas emissions (GHG: N2O, CH4, and CO2) and other airborne contaminants, such as NH3 and particulate matter. She did pioneer work on the relaxed eddy accumulation technique to measure trace gas fluxes. She contributes to international efforts for verifying process-based models for GHG emissions and NH3 volatilization from agricultural sources, and for assimilation of biophysical descriptors in crop models.