Change search
ReferencesLink to record
Permanent link

Direct link
A new flexible multicomponent model for the study of aerosol dynamics in the marine boundary layer
Stockholm University, Faculty of Science, Department of Meteorology .
2011 (English)In: Tellus. Series B, Chemical and physical meteorology, ISSN 0280-6509, E-ISSN 1600-0889, Vol. 63, no 5, 1001-1025 p.Article in journal (Refereed) Published
Abstract [en]

A new sectional aerosol dynamics model, MAFOR, was developed with the focus to study nucleation in the marine boundary layer. Novel aspects of the model are (1) flexibility in the treatment of gas phase chemistry, (2) treatment of liquid phase chemistry, which can be extended according to needs and (3) simultaneous calculation of number and mass concentration distributions of a multicomponent aerosol as functions of time. Comparison with well-documented aerosol models (MONO32 and AEROFOR), a comprehensive data set on gas phase compounds, aerosol size distribution and chemical composition obtained during the AOE-96 (Arctic Ocean Expedition, 1996) was used to evaluate the model. Dimethyl sulphide decay during advection of an air parcel over the Arctic pack ice was well captured by the applied models and predicted concentrations of gaseous sulphuric acid and methane sulphonic acid range up to 1.0 x 10(6) cm(-3) and 1.8 x 10(6) cm(-3), respectively. Different nucleation schemes were implemented in MAFOR which allow the simulation of new particle formation. Modelled nucleation rates from sulphuric acid nucleation via cluster activation were up to 0.21 cm(-3) s(-1) while those from ion-mediated nucleation were below 10(-2) cm(-3) s(-1). Classical homogeneous binary and ternary nucleation theories failed to predict nucleation over the central Arctic Ocean in summer.

Place, publisher, year, edition, pages
2011. Vol. 63, no 5, 1001-1025 p.
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-69888DOI: 10.1111/j.1600-0889.2011.00562.xISI: 000296030800015OAI: diva2:479763
authorCount :4Available from: 2012-01-18 Created: 2012-01-15 Last updated: 2012-01-18Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Leck, Caroline
By organisation
Department of Meteorology
In the same journal
Tellus. Series B, Chemical and physical meteorology
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 19 hits
ReferencesLink to record
Permanent link

Direct link