nomadssThe Selin group is part of the NOMADSS (Nitrogen, Oxidants and Aerosol Distribution, Sources and Sinks) study, a field campaign using the NCAR C-130 in summer 2013 out of Smyrna, Tennessee. The NOMADSS study merges three major experiments, focusing on understanding major atmospheric constituents and their behavior in the eastern U.S. The Selin group’s work as part of this campaign focuses on mercury, with goals to constrain emissions of mercury from major source regions in the United States, and quantify the distribution and chemical transformations of spectated mercury in the troposphere. The Selin group runs forecasting and near-real-time monitoring in the field using the GEOS-Chem model.


In summer 2011, members of Jesse Kroll’s group took part in the BEACHON-RoMBAS (“Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen – Rocky Mountain Biogenic Aerosol Study”) field campaign, in Manitou Forest, CO.  This multigroup, international effort was focused in part on better understanding the chemistry of biogenic  secondary organic aerosol.  Kroll Group members brought a new instrument for the detection and characterization of intermediate-volatility and semivolatile organic compounds.  Measurements were highly complementary to the VOC and PM measurements made by other groups; together these instruments provided the fullest description to date of the volatiliy distribution of organic compounds in the atmosphere.