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Conceptual study on nucleation burst evolution in the convective boundary layer – Part I: Modelling approach
Modelling Department, Institute for Tropospheric Research, Permoser Str. 15, 04318 Leipzig, Germany
Abstract. A high-order modelling approach to interprete 'continental-type' particle formation bursts in the anthropogenically influenced convective boundary layer (CBL) is proposed. The model considers third-order closure for planetary boundary layer turbulence, sulfur and ammonia chemistry and aerosol dynamics. In part I of the present paper, previous observations of ultrafine particle evolution are reviewed, model equations are derived, the model setup for a conceptual study on binary and ternary homogeneous nucleation is defined, and shortcomings of process parameterization are discussed. In subsequent parts of the paper simulation results obtained within the framework of a conceptual study on the CBL evolution and new particle formation (NPF) will be presented and compared with observational findings.
Discussion Paper (PDF, 911 KB) Interactive Discussion (Closed, 8 Comments) Final Revised Paper (ACP)
Citation: Hellmuth, O.: Conceptual study on nucleation burst evolution in the convective boundary layer – Part I: Modelling approach, Atmos. Chem. Phys. Discuss., 5, 11413-11487, 2005. Bibtex EndNote Reference Manager
