Modeled size-segregated wet and dry deposition budgets of soil dust aerosol during ACE-Asia 2001: Implications for trans-Pacific transport
文献类型：期刊论文
| 作者 | Zhao, TL; Gong, SL; Zhang, XY; McKendry, IG |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2003-08-26 |
| 卷号 | 108期号:D23 |
| 关键词 | Asian soil dust budgets deposition transport patterns simulation |
| DOI | 10.1029/2002JD003363 |
| 文献子类 | Article |
| 英文摘要 | [1] Size-segregated budgets of soil dust aerosols in Asia for spring 2001 during ACE-Asia were investigated using the NARCM model [ Gong et al., 2003b]. Simulated mass size distributions of dust deposition showed a similar size distribution to the dust emission fluxes over the source regions and a decreased peak corresponding to a 1 - 3 mum diameter range over downwind regions. The simulations suggest that dry deposition was a dominant dust removal process near the source areas and the removal of dust particles by precipitation was the major process over the trans-Pacific transport pathway, where wet deposition exceeded dry deposition by up to a factor of 10. The Asian dust deposition from the atmosphere to the North Pacific Ocean was correlated not only with precipitation over the North Pacific but also with the dust transport patterns. Variations of monthly Asian dust outflow were identified with the latitudinal center of transport at 38 degreesN in March, 42 degreesN in April, and 47 degreesN in May. The monthly trans-Pacific transport patterns of Asian dust in spring were characterized. The transport axis extended around 30 degreesN and 40 degreesN from the east Asian subcontinent to the North Pacific in March. A zonal transport pathway around 40 degreesN was well developed in April over the North Pacific and reached North America. However, the transport in May was separated into two pathways: an eastward zonal path over the North Pacific and a meridional path from the source regions to the northeast Asian continent. On the basis of the averaged dust budgets during spring 2001, it was found that the major sources of Asian dust were located in the desert regions in China and Mongolia with an estimated dust emission of 21.5 tons km(-2), and the regions from the Loess Plateau to the North Pacific were sinks of soil dust aerosols with the Loess Plateau as the main sink for Asian dust. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| WOS关键词 | LONG-RANGE TRANSPORT ; NORTH PACIFIC ; MINERAL AEROSOL ; ATMOSPHERIC TRANSPORT ; OPTICAL-THICKNESS ; YELLOW SAND ; APRIL 1998 ; EAST-ASIA ; SIMULATION ; CHINA |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000185252300002 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.ieecas.cn/handle/361006/11890]  |
| 专题 | 黄土与第四纪地质国家重点实验室（1985-2004） |
| 推荐引用方式 GB/T 7714 | Zhao, TL,Gong, SL,Zhang, XY,et al. Modeled size-segregated wet and dry deposition budgets of soil dust aerosol during ACE-Asia 2001: Implications for trans-Pacific transport[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2003,108(D23). |
| APA | Zhao, TL,Gong, SL,Zhang, XY,&McKendry, IG.(2003).Modeled size-segregated wet and dry deposition budgets of soil dust aerosol during ACE-Asia 2001: Implications for trans-Pacific transport.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,108(D23). |
| MLA | Zhao, TL,et al."Modeled size-segregated wet and dry deposition budgets of soil dust aerosol during ACE-Asia 2001: Implications for trans-Pacific transport".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 108.D23(2003). |
入库方式： OAI收割
来源：地球环境研究所
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