Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2151/jmsj.2012-A09 |
Contrasting the Effect of Iron Mobilization on Soluble Iron Deposition to the Ocean in the Northern and Southern Hemispheres | |
Ito, Akinori | |
通讯作者 | Ito, Akinori |
来源期刊 | JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN
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ISSN | 0026-1165 |
EISSN | 2186-9057 |
出版年 | 2012 |
卷号 | 90A页码:167-188 |
英文摘要 | This study extends a comprehensive modeling study by Ito and Feng to investigate the effect of iron mobilization in size-segregated particles on soluble iron deposition to the open ocean using a global aerosol chemistry transport model. The iron dissolution from relatively insoluble iron in mineral aerosols due to chemical reactions with acidic species is calculated from the online simulation of our aerosol chemistry model. In addition, the iron from combustion sources such as biomass and fossil fuels burning is readily released into solutions in aerosols assuming constant iron solubility (i.e., the mass fraction of dissolved to total iron). The simulation results indicate that fine particles play a major role in soluble iron supply to the Pacific and Atlantic oceans in the Northern Hemisphere (70-100%) due to acid mobilization. In significant portions of the Southern Ocean, in contrast, the amount of acidic trace gases is not high enough to promote the iron dissolution in the fine aerosols. Consequently, coarse particles are important source of soluble iron in the South Atlantic Ocean (40-60%) downwind of regions from Patagonian desert in South America. The model response of soluble iron deposition to perturbation by iron solubility suggests that large fires may supply a potentially important source of soluble iron to the open ocean, compared to dust. |
类型 | Article |
语种 | 英语 |
国家 | Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000304385900010 |
WOS关键词 | MINERAL-DUST ; ATMOSPHERIC IRON ; ASIAN DUST ; CHEMICAL-CHARACTERIZATION ; REACTIVE CHLORINE ; EAST-ASIA ; SEA-SALT ; LOW PH ; AEROSOL ; TRANSPORT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173893 |
作者单位 | (1)JAMSTEC, Res Inst Global Change, Kanazawa Ku, Yokohama, Kanagawa 2360001, Japan |
推荐引用方式 GB/T 7714 | Ito, Akinori. Contrasting the Effect of Iron Mobilization on Soluble Iron Deposition to the Ocean in the Northern and Southern Hemispheres[J],2012,90A:167-188. |
APA | Ito, Akinori.(2012).Contrasting the Effect of Iron Mobilization on Soluble Iron Deposition to the Ocean in the Northern and Southern Hemispheres.JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN,90A,167-188. |
MLA | Ito, Akinori."Contrasting the Effect of Iron Mobilization on Soluble Iron Deposition to the Ocean in the Northern and Southern Hemispheres".JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN 90A(2012):167-188. |
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