Observations of ultra-fine particles above a deciduous forest in Denmark

Details Observations of ultra-fine particles above a deciduous forest in Denmark Observations of ultra-fine particles above a deciduous forest in Denmark

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206804p&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 6, CiteID L06804

Physics

1

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions (0426, 1610), Atmospheric Composition And Structure: Pollution: Urban And Regional (0305, 0478, 4251), Atmospheric Composition And Structure: Troposphere: Composition And Chemistry, Atmospheric Composition And Structure: Instruments And Techniques

Scientific paper

We report physical particle size distribution and chemical composition data over a Beech forest in Denmark during May and June of 2004 with a focus on four days characterized by high concentrations of ultra-fine particles. Highest number concentrations of sub-30 nm particles were observed when net radiation >300 W m-2 and ambient particle surface area <100 μm2 cm-3. The 10-30 nm particles show growth rates of 1.5-4.5 nm hr-1 and are comprised predominantly of ammonium, sulfate and associated water.

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