Premium
New‐particle formation in connection with a nocturnal low‐level jet: Observations and modeling results
Author(s) -
Siebert H.,
Wehner B.,
Hellmuth O.,
Stratmann F.,
Boy M.,
Kulmala M.
Publication year - 2007
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 - 10.1029/2007gl029891
Subject(s) - jet (fluid) , nucleation , ultrafine particle , particle (ecology) , nocturnal , atmospheric sciences , kinetic energy , mechanics , physics , materials science , environmental science , geology , thermodynamics , classical mechanics , nanotechnology , oceanography , astronomy
Tethered‐balloon borne observations show a correlation between a significant peak of ultrafine particle concentration and increased SO 2 advected by a nocturnal low‐level jet. The maximum of ultrafine particles is found at the lower edge of the jet in a region where the advected SO 2 is mixed with colder and more humid air masses from below the jet. Model results corroborate that kinetic nucleation is the key mechanism for this nucleation event.