Dr. Mary Barth is a Senior Scientist at NCAR conducting research focused on the interactions between clouds and chemistry. She is using cloud-scale and regional-scale modeling and observations from field experiments to investigate effects of vertical transport, wet scavenging, aqueous-phase chemistry, and lightning in clouds on ozone precursors and aerosol concentrations.

Dr. Barth is one of the leaders of the Multiscale Infrastructure for Chemistry and Aerosols (MUSICA) project in NCAR/ACOM. MUSICA is a global modeling framework that allows for simulations of large-scale atmospheric phenomena while still resolving chemistry at emission and exposure relevant scales. In developing this infrastructure a model-independent chemistry module is being created to provide the atmospheric chemistry solver to any of the NCAR, and other, atmosphere models along with information characterizing each chemical species via a database. MUSICA is part of the NCAR-wide System for Integrated Modeling of the Atmosphere (SIMA), for which Dr. Barth is the Science Lead.

Barth is currently the President of the International Commission on Atmospheric Chemistry and Global Pollution. In 2017 she became a Fellow of the American Meteorological Society.