On the Size Dependence of Particle Deposition |
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Authors: | Garland J. A. |
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Affiliation: | (1) 48 Priory Orchard, Wantage, Oxon, U.K |
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Abstract: | Measurements of dry deposition ofparticles 0.1 to 1.0 m diameter to forest bythroughfall and eddy correlation methods giveresults of 1.0 cm s-1 or more, whilemechanistic models do not explain values greaterthan about 1 mm s-1. Results of othermethods involving radioactive tracers arerecalled. These data indicate values of about 5 mm s-1. The possibility of additionalmechanisms, omitted from the models, is difficultto exclude, but much of the remaining discrepancymay be due to the wide size distribution of theadventitious radioactive tracers in the atmosphere. |
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Keywords: | aerosol lifetime dry deposition of particles radioactive aerosols |
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