SOSA – a new model to simulate the concentrations of organic vapours and sulphuric acid inside the ABL – Part 1: Model description and initial evaluation 1University of Helsinki, Department of Physical Sciences, P.O. Box 48, 00014 Helsinki, Finland
03 Jan 2011
2Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark. Building 118, P.O. Box 49, 4000, Roskilde, Denmark
3ACD, NCAR, P.O. Box 3000, 80305 Boulder, Colorado, USA
Received: 30 Jun 2010 – Published in Atmos. Chem. Phys. Discuss.: 09 Aug 2010Abstract. Chemistry in the atmospheric boundary layer (ABL) is controlled by complex
processes of surface fluxes, flow, turbulent transport, and chemical
reactions. We present a new model SOSA (model to simulate the concentration
of organic vapours and sulphuric acid) and attempt to reconstruct the
emissions, transport and chemistry in the ABL in and above a vegetation
canopy using tower measurements from the SMEAR II at Hyytiälä,
Finland and available soundings data from neighbouring meteorological
stations. Using the sounding data for upper boundary condition and nudging
the model to tower measurements in the surface layer we were able to get a
reasonable description of turbulence and other quantities through the ABL.
As a first application of the model, we present vertical profiles of organic
compounds and discuss their relation to newly formed particles.
Revised: 08 Dec 2010 – Accepted: 21 Dec 2010 – Published: 03 Jan 2011
Citation: Boy, M., Sogachev, A., Lauros, J., Zhou, L., Guenther, A., and Smolander, S.: SOSA – a new model to simulate the concentrations of organic vapours and sulphuric acid inside the ABL – Part 1: Model description and initial evaluation, Atmos. Chem. Phys., 11, 43-51, doi:10.5194/acp-11-43-2011, 2011.