Temporal and spatial distributions of dust and its deposition to the China Sea | |
Gao, Y; Arimoto, R; Duce, RA; Zhang, XY; Zhang, GY; An, ZS; Chen, LQ; Zhou, MY; Gu, DY | |
刊名 | TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY |
1997-04 | |
卷号 | 49期号:2页码:172-189 |
DOI | 10.1034/j.1600-0889.49.issue2.5.x |
文献子类 | Article |
英文摘要 | Atmospheric concentrations of aluminum, an indicator of dust substances, have been determined in a set of high-volume aerosol particle samples collected at different locations over continental China and over the China Sea. High concentrations of dust were observed in northern continental China, and at certain locations such as Beijing dust may include an anthropogenic fraction. The mass particle-size distributions of dust varied depending on its distance from source regions, with the mass median diameter for Al of similar to 1.6-5.9 mu m at Beijing in northern China and similar to 1.9 mu m over off-shore areas of the East China Sea. Model-predicted mean dry deposition velocities of dust particles are from 1.4 to 4.8 cm s(-1) over northern continental China and from 1.4 to 2.1 cm s(-1) over the China Sea. Atmospheric deposition models have been applied to estimate the atmospheric fluxes and deposition of dust at different locations. The estimated atmospheric flux of dust at Xi'an of the Loess Plateau is 25 (4.9 to 44) g m(-2) mo(-1) which is the highest among the regions we studied. The estimated present-day dust flux is comparable to the late quaternary records of eolian dust accumulation at this site. The total atmospheric deposition of dust to the China Sea is 67 Tg yr(-1), accounting for 14% of the total atmospheric deposition of dust to the entire North Pacific. With such a high deposition rate, Asian dust may play an important role in biogeochemical cycles of trace substances in the Asia/North Pacific region. |
学科主题 | Meteorology & Atmospheric Sciences |
WOS关键词 | NORTH PACIFIC-OCEAN ; ATMOSPHERIC TRACE-ELEMENTS ; DRY DEPOSITION ; LOESS PLATEAU ; TRANSPORT ; ASIA ; MINERALOGY ; PARTICLES ; AEROSOLS ; STORMS |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | WILEY-BLACKWELL |
WOS记录号 | WOS:A1997WZ85800005 |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/11879] |
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 | Gao, Y,Arimoto, R,Duce, RA,et al. Temporal and spatial distributions of dust and its deposition to the China Sea[J]. TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY,1997,49(2):172-189. |
APA | Gao, Y.,Arimoto, R.,Duce, RA.,Zhang, XY.,Zhang, GY.,...&Gu, DY.(1997).Temporal and spatial distributions of dust and its deposition to the China Sea.TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY,49(2),172-189. |
MLA | Gao, Y,et al."Temporal and spatial distributions of dust and its deposition to the China Sea".TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY 49.2(1997):172-189. |
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