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| DOI | 10.1016/j.atmosenv.2020.117432 |
| Origin, transport and deposition of aerosol iron to Australian coastal waters | |
| Perron M.M.G.; Proemse B.C.; Strzelec M.; Gault-Ringold M.; Boyd P.W.; Rodriguez E.S.; Paull B.; Bowie A.R. | |
| 发表日期 | 2020 |
| ISSN | 1352-2310 |
| 卷号 | 228 |
| 英文摘要 | Australia is a major source of Fe-laden dust to the anemic marine phytoplankton in the Southern Ocean and to Southern Hemisphere (SH) low latitudes diazotrophic bacteria. However, the paucity of observations and laboratory experiments on SH aerosols biases model predictions of atmospheric Fe deposition to the southern oceans and the subsequent response of ocean productivity. As a result of an extensive shipboard aerosol sampling effort, this study presents laboratory measurements of aerosol Fe concentrations, solubilities and fluxes and analysis of chemical tracers, highlighting the large heterogeneity between aerosol Fe sources in 5 coastal regions around Australia. While dust-sourced high Fe loadings and low Fe solubilities (5%) aerosols dominate the atmospheric burden of the western coasts of Australia, much lower Fe concentrations but greater Fe solubilities (10.5% and 13%) were measured in aerosols along the east coast which was attributed to solubility-enhancing atmospheric reactions with anthropogenic pollutants. Surprisingly high aerosol Fe solubilities (>20%) in northern Australia aerosols were associated with direct emissions or atmospheric reactions with bushfire emissions at tropical latitudes, which accounted for 49% of the total (sum) atmospheric dry deposition flux of labile Fe measured across the continent's surrounding seawaters in this study. © 2020 Elsevier Ltd |
| 关键词 | Anthropogenic pollutantsBushfireDustLabile ironSolubilitySouthern hemisphere |
| 语种 | 英语 |
| scopus关键词 | Atmospheric aerosols; Atmospheric chemistry; Atmospheric movements; Chemical analysis; Deposition; Dust; Iron; Marine biology; Phytoplankton; Solubility; Anthropogenic pollutants; Atmospheric dry deposition; Atmospheric reactions; Bushfire; Labile irons; Laboratory experiments; Laboratory measurements; Southern Hemisphere; Air pollution; iron; sea water; tracer; aerosol; anthropogenic source; coastal water; dry deposition; dust; phytoplankton; solubility; Southern Hemisphere; aerosol; Article; atmospheric deposition; atmospheric transport; Australia; biomass; coastal waters; concentration (parameter); dry deposition; dust; laboratory test; latitude; marine environment; priority journal; solubility; wildfire; Australia; Southern Ocean |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/249226 |
| 作者单位 | Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Tasmania, Australia; Antarctic Climate and Ecosystems CRC, University of Tasmania, Battery Point, Tasmania, Australia; Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Sandy Bay, Tasmania 7001, Australia |
| 推荐引用方式 GB/T 7714 | Perron M.M.G.,Proemse B.C.,Strzelec M.,et al. Origin, transport and deposition of aerosol iron to Australian coastal waters[J],2020,228. |
| APA | Perron M.M.G..,Proemse B.C..,Strzelec M..,Gault-Ringold M..,Boyd P.W..,...&Bowie A.R..(2020).Origin, transport and deposition of aerosol iron to Australian coastal waters.ATMOSPHERIC ENVIRONMENT,228. |
| MLA | Perron M.M.G.,et al."Origin, transport and deposition of aerosol iron to Australian coastal waters".ATMOSPHERIC ENVIRONMENT 228(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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