Scientist IIIUCAR staff page
CESM Chemistry-Climate Working Group co-chair
Atmospheric Chemistry Observations and Modeling (ACOM) Laboratory
National Center for Atmospheric Research
Louisa Emmons is a Senior Scientist in the Atmospheric Chemistry Observations and Modeling Laboratory of NCAR. Louisa received her Bachelor's Degree in Physics at Haverford College and her Master's and Ph.D. Degrees at the State University of New York at Stony Brook, also in Physics. 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, and has resulted in 138 published journal articles since starting her PhD research.
Louisa's research interests lie in the integration of measurements with models to investigate the impact of sources and their chemical evolution on tropospheric composition. This work includes the evaluation, and improvement, of models with observations, and the interpretation of observations with model results. Louisa developed the first climatologies of tropospheric ozone and its precursors based on many individual aircraft measurements and ground-based observations, which have been used to evaluate global models at NCAR and throughout the community. Louisa has also worked extensively with satellite observations of tropospheric constituents and published the first validation of the carbon monoxide (CO) retrievals from the Measurements Of Pollution In The Troposphere (MOPITT) instrument on the Terra satellite using airborne in situ measurements.
Louisa played a key role in the development of the NCAR community model MOZART (Model of OZone and Related Chemical Tracers), and led the publication and community release of Version 4 of MOZART in 2010. Real-time chemical forecasts using MOZART-4 have been maintained by Louisa for many years to provide global chemical forecasts of ozone, carbon monoxide and other compounds. MOZART-4 results are also provided for boundary conditions of regional models through a public webpage. She is currently co-chair of the CESM chemistry-climate working group and leads development of CAM-chem. Her particular interest is in improving the representation of volatile organic carbon oxidation. Louisa has been an active participant in NCAR-led field campaigns, including TOPSE, MIRAGE, DC3, NOMADSS and FRAPPE, using MOPITT and MOZART results to assist flight planning during the campaign and post-mission analysis. In addition, Louisa has successfully proposed to provide forecasting and flight planning support in several NASA field campaigns. She is part of the Leadership Team for KORUS-AQ, a recent joint Korea-US air quality study in Korea. Through participation in these field experiments, Louisa has collaborated with a large number of the leading groups in tropospheric chemistry on analysis of their observations.
Current Research Activities
- Chemical forecasts, flight planning and analysis for NASA aircraft experiment KORUS-AQ, a collaborative air quality study in Korea, May-June 2016.
- NCAR FRAPPE
- NASA SEAC4RS
- Chemical forecasts with MOZART-4.
- Production of MOZART-4 results for regional model boundary conditions, available on the NCAR/ACD WRF-chem webpage.