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Salinity of marine aerosols in a Brazilian coastal area—Influence of wind regime

AuthorsMeira, G. R.; Andrade, C.; Alonso, C.; Padaratz, I. J.; Borba, J. C.
KeywordsChloride deposition
Marine aerosol
Wet candle
Wind regime
Wind speed
Issue Date2007
CitationAtmospheric Environment; 41 (38) : 8431-8441 (2007)
AbstractThis paper presents salinity data of marine aerosols in a Brazilian coastal area at sites closer to the shore and discusses the influence of wind regime. Results show that measurements of marine salt deposition are strongly influenced by wind speeds above the critical value of 3.0 m s−1. Although there is no agreement in literature yet as to how much this threshold is, the level of 3.0 m s−1 is similar to the one found in a study carried out in Spain. An exponential variation of salt concentration with wind speed is presented in previous published papers. However, in the studied case, another relationship is proposed, which is based on chloride deposition on the wet candle device and wind speeds higher than 3.0 m s−1 weighted by the accumulated time in which these wind speeds are observed, what seems to be particularly useful when wind speed ranges around the critical value.
Publisher version (URL)http://www.sciencedirect.com/science/article/pii/S1352231007006176
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