Modelling sea-salt aerosols in the atmosphere: 1. model development. 1. Geophys
Abstract. A simulation of the processes of sea-salt aerosol generation, diffusive transport, transformation, and removal as a function of particle size is incorporated into a one-dimensional version of the Canadian general climate model (GCMII). This model was then run in the North Atlantic between...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
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Res
1997
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| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.8291 http://www.see.ed.ac.uk/~shs/Climate change/Data sources/GONG salt injection.pdf |
| Summary: | Abstract. A simulation of the processes of sea-salt aerosol generation, diffusive transport, transformation, and removal as a function of particle size is incorporated into a one-dimensional version of the Canadian general climate model (GCMII). This model was then run in the North Atlantic between Iceland and Ireland during the period of January-March. Model predictions are compared to observations of sea-salt aerosols selected from a review of available studies that were subjected to strict screening criteria to ensure their representativeness. The number and mass size distribution and the wind dependency of total sea-salt aerosol mass concentrations predicted by the model compare well with observations. The modeled dependence of sea-salt aerosol concentration in the surface layer (X,/xg m-3) on 10-m wind speed (U•0, m s-•) is given by X = beaU•ø. Simulations show that both a and b change with location. The value a and b range from 0.20 and 3.1 |
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