Open AccessVertical aerosol fluxes measured by the eddy covariance method and deposition of nucleation mode particles above a Scots pine forest in southern Finland
Author(s) -
Buzorius G.,
Rannik Ü.,
Mäkelä J. M.,
Keronen P.,
Vesala T.,
Kulmala M.
Publication year - 2000
Publication title -
journal of geophysical research: atmospheres
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2000jd900108
Subject(s) - aerosol , scots pine , atmospheric sciences , eddy covariance , deposition (geology) , particle (ecology) , range (aeronautics) , flux (metallurgy) , environmental science , particle number , nucleation , particle size distribution , particle size , physics , meteorology , materials science , chemistry , geology , pinus <genus> , thermodynamics , ecosystem , geomorphology , oceanography , volume (thermodynamics) , sediment , ecology , composite material , biology , metallurgy , botany
Particle number fluxes were measured by the eddy covariance method above a Scots pine forest in southern Finland. The observed number fluxes included particles with sizes down to 10 nm in diameter. The errors of measured particle number fluxes resulting from the technical limitations of particle counter and atmospheric fluctuations of water content are estimated. Simultaneous aerosol size distribution measurements were used to obtain information on particle sizes contributing to the flux. During new particle formation events the particle fluxes were dominated by nucleation mode particles, allowing the deduction of the deposition velocities characteristic to those particles. The corresponding deposition velocities were within a range from 5 to 40 mm s −1 .