NanoMap : Geographical mapping of atmospheric new-particle formation through analysis of particle number size distribution and trajectory data

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http://hdl.handle.net/10138/165206

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Kristensson , A , Johansson , M , Swietlicki , E , Kivekas , N , Hussein , T , Nieminen , T , Kulmala , M & Dal Maso , M 2014 , ' NanoMap : Geographical mapping of atmospheric new-particle formation through analysis of particle number size distribution and trajectory data ' , Boreal Environment Research , vol. 19 , pp. 329-342 .

Title: NanoMap : Geographical mapping of atmospheric new-particle formation through analysis of particle number size distribution and trajectory data
Author: Kristensson, Adam; Johansson, Martin; Swietlicki, Erik; Kivekas, Niku; Hussein, Tareq; Nieminen, Tuomo; Kulmala, Markku; Dal Maso, Miikka
Contributor: University of Helsinki, INAR Physics
University of Helsinki, INAR Physics
University of Helsinki, INAR Physics
University of Helsinki, INAR Physics
Date: 2014-09-30
Language: eng
Number of pages: 14
Belongs to series: Boreal Environment Research
ISSN: 1239-6095
URI: http://hdl.handle.net/10138/165206
Abstract: Particle number size distributions at various field sites are used to identify atmospheric new-particle formation (NPF) event days. However, the spatial distribution of regionally extensive events is unknown. To remedy this situation, the NanoMap method has been developed to enable the estimation of where NPF occurs within 500 km from any field station using as input size distribution and meteorological trajectories only. Also, the horizontal extension of NPF can be determined. An open-source program to run NanoMap is available on the internet. NanoMap has been developed using as an example the Finnish field site at Hyytiala. It shows that there are frequent NPF events over the Baltic Sea, but not as frequent as over Finland for certain wind directions; hence NanoMap is able to pinpoint areas with a low or high occurrence of NPF events. The method should be applicable to almost any field site.
Subject: AEROSOL NUCLEATION
SOUTHERN FINLAND
FORMATION EVENTS
SULFURIC-ACID
GROWTH-RATES
HYYTIALA
STATIONS
1172 Environmental sciences
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