Observations of turbulence-induced new particle formation in the residual layer
Item
Title (Dublin Core)
Observations of turbulence-induced new particle formation in the residual layer
Description (Dublin Core)
Aerosol particle measurements in the atmospheric boundary layer performed by a helicopter-borne measurement payload and by a lidar system from a case study during the IMPACT field campaign in Cabauw (NL) are presented. Layers of increased number concentrations of ultrafine particles were observed in the residual layer, indicating relatively recent new-particle formation. These layers were characterized by a sub-critical Richardson number and concomitant increased turbulence. Turbulent mixing is likely to lead to local supersaturation of possible precursor gases which are essential for new particle formation. Observed peaks in the number concentrations of ultrafine particles at ground level are connected to the new particle formation in the residual layer by boundary layer development and vertical mixing.
Creator (Dublin Core)
Wehner, B.
Siebert, H.
Ansmann, A.
Ditas, F.
Seifert, P.
Stratmann, F.
Wiedensohler, A.
Apituley, A.
Shaw, R. A.
Manninen, H. E.
Kulmala, M.
Date (Dublin Core)
2018-01-15
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-10-4319-2010
https://acp.copernicus.org/articles/10/4319/2010/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
