A research focus of the Climate Change Research Center emphasizes understanding of carbonaceous aerosols in the atmosphere. These studies are diverse in their approach,
scope, and location of interest. Field measurements focus on size resolution, source, physical properties, transformation, and chemical speciation of atmospheric carbonaceous aerosols
using mist chambers, filter and impactor collection, and aerosol mass spectrometry. Field sites include New England (inland, coastal, and marine), Houston (urban pollution), and
Summit, Greenland (remote). Laboratory studies utilize chamber experiments to determine yields and speciation of simplified reaction systems, including those consisting of chlorine atom
and reactive organics. Modeling studies center on simulation of atmospheric secondary organic aerosol (SOA) concentrations using state-of-the-science modules in three-dimensional
air quality models applied to the northeastern United States and southern California. Model applications include seasonal and dynamical controls on SOA formation, particle chemical
characterization, and source apportionment.
AIRMAP is a UNH air quality and climate program unraveling fundamental
chemistry-climate connections in the rural atmosphere of New England,
directly downwind of major urban/industrialized emissions.
The Greenland Environmental Observatory at Summit (GEOSummit) is a year-round Arctic sampling station funded by the National Science Foundation.
GEOSummit is located at the top of the Greenland Ice Sheet and provides unique opportunities for investigation of atmospheric processes.