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Observation and Analysis of Particle Nucleation at a Forest Site in Southeastern US
Citation:
Pillai, P., A. Khlystov, Johnt Walker, AND V. Aneja. Observation and Analysis of Particle Nucleation at a Forest Site in Southeastern US. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, Turkey, 4(2):72-93, (2013).
Impact/Purpose:
This paper describes the frequency and intensity of particle nucleation events at Duke Forest and the meteorological and atmospheric chemical conditions that favor nucleation. The results improve our understanding of particle nucleation in the southeast U.S. and provide datasets for air quality model validation.
Description:
This study examines the characteristics of new particle formation at a forest site in the Southeast U.S. Particle size distributions above a Loblolly pine plantation were measured between November, 2005 and September, 2007 and analyzed by event type and frequency as well as relation to meteorological and atmospheric chemical conditions. Nucleation events occurred on 79% of classifiable observation days. Nucleation frequency was highest in spring and lowest in fall. The highest daily nucleation (class A and B events) frequency (81%) was observed in April. The average total particle number concentration on nucleation days was 8684 cm-3 (10
