Meteorological constraints on characteristics of daily dustfall in Xi'an
文献类型：期刊论文
| 作者 | Chen, Hongyun4; Yan, Yan5,6; Sun, Youbin3,5; Liu, Xingxing5; Liu, Haijiao1,5; Ma, Long1,5; Liang, Lianji2 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 158期号:2017页码:98-104 |
| 关键词 | Dustfall Dust Deposition Chinese Loess Plateau Meteorological Constraint |
| DOI | 10.1016/j.atmosenv.2017.03.032 |
| 文献子类 | Article |
| 英文摘要 | Dust deposition is a crucial link of dust cycle that is less constrained in model studies. This study acquired profiles of flux and size distribution of daily dustfall from 2012 to 2013 in Xi'an on the southern Chinese Loess Plateau. On this basis, we made quantitative estimates of dust contribution from particular sources and processes, which provides important boundary conditions for model studies. Regrouping the data into transport- and source-limited deposition scenarios, we revealed that besides precipitation extreme wind speed and average relative humidity are the primary meteorological constraints in the transport and source-limited scenarios, respectively. Stronger extreme wind speed promotes higher flux and deposition of dust >16 mu m, corroborating previous interpretations of variation of flux and grain size of aeolian deposits. However, higher average relative humidity favors lower flux and deposition of dust <16 mu m, which is a deposition process not recognized before, and is possibly due to hygroscopicity of mineral dust or the influence of water vapor on air convection. Elucidating this process in future studies might substantially improve model performance on dust deposition. (C) 2017 Elsevier Ltd. All rights reserved. |
| WOS关键词 | ASIAN DUST ; GRAIN-SIZE ; MINERAL AEROSOL ; LOESS PLATEAU ; CLIMATE ; REGION ; TRANSPORT ; DESERT ; CHINA ; STORM |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000401207900009 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5473]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China 3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 4.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 6.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Hongyun,Yan, Yan,Sun, Youbin,et al. Meteorological constraints on characteristics of daily dustfall in Xi'an[J]. ATMOSPHERIC ENVIRONMENT,2017,158(2017):98-104. |
| APA | Chen, Hongyun.,Yan, Yan.,Sun, Youbin.,Liu, Xingxing.,Liu, Haijiao.,...&Liang, Lianji.(2017).Meteorological constraints on characteristics of daily dustfall in Xi'an.ATMOSPHERIC ENVIRONMENT,158(2017),98-104. |
| MLA | Chen, Hongyun,et al."Meteorological constraints on characteristics of daily dustfall in Xi'an".ATMOSPHERIC ENVIRONMENT 158.2017(2017):98-104. |
入库方式： OAI收割
来源：地球环境研究所
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