Louisa Emmons is a Senior Scientist in the Atmospheric Chemistry Observations and Modeling Laboratory of the National Center for Atmospheric Research (NCAR). Louisa received her Ph.D. Degree in Physics at the State University of New York at Stony Brook in 1994. Her graduate research focused on remote sensing measurements of stratospheric ozone depletion, using ground-based mm-wave spectroscopy to study the Antarctic ozone hole and the Arctic springtime stratosphere. Her research since then has encompassed both measurements and modeling of tropospheric chemistry, first as a post-doc at the University of Michigan and then as a research scientist at NCAR. Louisa's current research interests lie in the integration of measurements with models to investigate the impact of sources and their chemical evolution on tropospheric composition. Louisa has been co-chair of the CESM chemistry-climate working group since 2014 and leads the development of the chemistry-climate model CAM-chem, a component of CESM. Louisa has been an active participant in many field campaigns, providing forecasting and flight planning support, as well as post-mission analysis. She is part of the Leadership Team for KORUS-AQ, a recent joint Korea-US air quality study in Korea.