Particle concentration and flux dynamics in the atmospheric boundary layer as the indicator of formation mechanism

Publication: Research - peer-reviewJournal article – Annual report year: 2011



View graph of relations

We carried out column model simulations to study particle fluxes and deposition and to evaluate different particle formation mechanisms at a boreal forest site in Finland. We show that kinetic nucleation of sulphuric acid cannot be responsible for new particle formation alone as the simulated vertical profile of particle number concentration does not correspond to observations. Instead organic induced nucleation leads to good agreement confirming the relevance of the aerosol formation mechanism including organic compounds emitted by the biosphere. The simulation of aerosol concentration within the atmospheric boundary layer during nucleation event days shows a highly dynamical picture, where particle formation is coupled with chemistry and turbulent transport. We have demonstrated the suitability of our turbulent mixing scheme in reproducing the most important characteristics of particle dynamics within the boundary layer. Deposition and particle flux simulations show that deposition affects noticeably only the smallest particles
Original languageEnglish
JournalAtmospheric Chemistry and Physics
Issue number12
Pages (from-to)5591-5601
StatePublished - 2011

Bibliographical note

This work is distributed under the Creative Commons Attribution 3.0 License.

CitationsWeb of Science® Times Cited: 12


  • Wind power meteorology
Download as:
Download as PDF
Select render style:
Download as HTML
Select render style:
Download as Word
Select render style:

Download statistics

No data available

ID: 5665014