Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2011GL049634 |
Urban emission hot spots as sources for remote aerosol deposition | |
Kunkel, D.1; Lawrence, M. G.1; Tost, H.3; Kerkweg, A.3; Joeckel, P.2; Borrmann, S.1,3 | |
通讯作者 | Kunkel, D. |
来源期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
出版年 | 2012 |
卷号 | 39 |
英文摘要 | Large point sources such as major population centers (MPCs) emit pollutants which can be deposited nearby or transported over long distances before deposition. We have used tracer simulations of aerosols emitted from MPCs worldwide to assess the fractions which are deposited at various distances away from their source location. Considering only source location, prevailing meteorology, and the aerosol size and solubility, we show that fine aerosol particles have a high potential to pollute remote regions. About half of the emitted mass of aerosol tracers with an ambient diameter <= 1.0 mu m is typically deposited in regions more than 1000 km away from the source. Furthermore, using the Koppen-Geiger climate classification to categorize the sources into various climate classes we find substantial differences in the deposition potential between these classes. Tracers originating in arid regions show the largest remote deposition potentials, with values more than doubled compared to the smallest potentials from tracers in tropical regions. Seasonal changes in atmospheric conditions lead to variations in the remote deposition potentials. On average the remote deposition potentials in summer correspond to about 70-80% of the values in winter, with a large spread among the climate classes. For tracers from tropical regions the summer remote deposition values are only about 31% of the winter values, while they are about 95% for tracers from arid regions. Citation: Kunkel, D., M. G. Lawrence, H. Tost, A. Kerkweg, P. Jockel, and S. Borrmann (2012), Urban emission hot spots as sources for remote aerosol deposition, Geophys. Res. Lett., 39, L01808, doi:10.1029/2011GL049634. |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000299179100002 |
WOS关键词 | GLOBAL ATMOSPHERIC CHEMISTRY ; SUBMODEL SYSTEM MESSY ; TECHNICAL NOTE ; INTERCONTINENTAL TRANSPORT ; AIR-POLLUTION ; MEGACITIES ; CLIMATE ; MODEL ; ECHAM5/MESSY1 ; SIMULATIONS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/172591 |
作者单位 | 1.Max Planck Inst Chem, D-55099 Mainz, Germany; 2.Deutsch Zentrum Luft & Raumfahrt, Inst Phys Atmosphare, D-82234 Oberpfaffenhofen, Wessling, Germany; 3.Johannes Gutenberg Univ Mainz, Inst Atmospher Phys, D-55099 Mainz, Germany |
推荐引用方式 GB/T 7714 | Kunkel, D.,Lawrence, M. G.,Tost, H.,et al. Urban emission hot spots as sources for remote aerosol deposition[J],2012,39. |
APA | Kunkel, D.,Lawrence, M. G.,Tost, H.,Kerkweg, A.,Joeckel, P.,&Borrmann, S..(2012).Urban emission hot spots as sources for remote aerosol deposition.GEOPHYSICAL RESEARCH LETTERS,39. |
MLA | Kunkel, D.,et al."Urban emission hot spots as sources for remote aerosol deposition".GEOPHYSICAL RESEARCH LETTERS 39(2012). |
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