Modeling Size-Distributed Sea Salt Aerosols in the Atmosphere: An Application Using Canadian Climate Models
An algorithm for size-distributed atmospheric aerosols designed for the Northern Aerosol Regional Climate Model [NARCM] is applied to three versions of the Canadian climate models: GCM, RCM and FIZ-C/LCM. It incorporates the processes of aerosol generation, diffusive transport, transformation and removal as a function of particle size to simulate global and regional sea-salt aerosol spatial and temporal distributions. A comparison was made between observations and model predictions of sea-salt. Size-resolved aerosol properties such as transport patterns, fluxes and removals are obtained from the simulations. Since the sea-salt generation term is relatively well quantified, the comparison ensures that a reasonable parameterization of removal and transport schemes is used.
KeywordsAerosol Concentration Surface Wind Speed Aerosol Generation Prognostic Equation Aerosol Surface Area
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- Exton, H.J., Latham, J., Park, P.M., Smith, M.H. and Allan R.R. (1986), The production and dispersal of maritime aerosol, in Oceanic Whitecaps, E.G. Monahan and G. Mac Niocaill (eds.), D. Redeil Publishing, Dordrecht, Holland, 175-193.Google Scholar
- Fitzgerald J.M. (1992), Numerical simulation of the evolution of the aerosol size distribution in a remote marine boundary layer, in Nucleation and Atmospheric Aerosols, Fukuta and Wagner (eds.), 157-160.Google Scholar
- Monahan, E.C., Spiel, D.E. and Davidson, K.L. (1986), A model of marine aerosol generation via whitecaps and wave disruption, in Oceanic Whitecaps, Monahan and Mac Niocaill (eds.), 167-174.Google Scholar
- Robert, A. (1966). The integration of a low order spectral form of the primitive meteorological equations. J. Meteor. Soc. Japan, Ser. 2, 44, 237-245.Google Scholar
- Stramska, M. (1987), Vertical profiles of sea-salt aerosol in the atmospheric surface layer: A numerical model, ACTA Geophysica Polonica, Vol. xxxv (1).Google Scholar
- Therrien, D. (1993), Le modèle de circulation générale atmosphérique Canadien en version colomne: FIZ-C, MSc Thesis, University of Quebec at Montreal, 123pp.Google Scholar