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Observations of ultrafine aerosol particle formation and growth in boreal forest
Author(s) -
Mäkelä J. M.,
Aalto P.,
Jokinen V.,
Pohja T.,
Nissinen A.,
Palmroth S.,
Markkanen T.,
Seitsonen K.,
Lihavainen H.,
Kulmala M.
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl00920
Subject(s) - aerosol , ultrafine particle , atmospheric sciences , particle size distribution , environmental science , particle (ecology) , particle size , particle number , taiga , meteorology , materials science , physics , geology , geography , nanotechnology , oceanography , paleontology , plasma , quantum mechanics , forestry
Number size distribution of ambient submicron and ultrafine aerosol particles have been measured on a continuous basis (every 10 minutes) for three quarters of the year 1996, at a forest site in Southern Finland. Continuous monitoring offers additional insight over the diurnal dynamics of the submicron size distribution, including existence of clearly separate size modes as well as events of new particle formation. Selected examples of the measured size distributions are presented, including the particle formation events observed at the measurement site. Typical characteristics of days with particle formation events versus days of no events are discussed.