Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0580.1 |
On the Seasonality of Arctic Black Carbon | |
Shen, Zhaoyi1; Ming, Yi2; Horowitz, Larry W.2; Ramaswamy, V.2; Lin, Meiyun1 | |
2017-06-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Arctic haze has a distinct seasonal cycle with peak concentrations inwinter but pristine conditions in summer. It is demonstrated that the Geophysical Fluid Dynamics Laboratory (GFDL) atmospheric general circulation model (AM3) can reproduce the observed seasonality of Arctic black carbon (BC), an important component of Arctic haze. The model is used to study how large-scale circulation and removal drive the seasonal cycle of Arctic BC. It is found that despite large seasonal shifts in the general circulation pattern, the transport of BC into the Arctic varies little throughout the year. The seasonal cycle of Arctic BC is attributed mostly to variations in the controlling factors of wet removal, namely the hydrophilic fraction of BC and wet deposition efficiency of hydrophilic BC. Specifically, a confluence of low hydrophilic fraction and weak wet deposition, owing to slower aging process and less efficient mixed-phase cloud scavenging, respectively, is responsible for the wintertime peak of BC. The transition to low BC in summer is the consequence of a gradual increase in the wet deposition efficiency, whereas the increase of BC in late fall can be explained by a sharp decrease in the hydrophilic fraction. The results presented here suggest that future changes in the aging and wet deposition processes can potentially alter the concentrations of Arctic aerosols and their climate effects. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402379600006 |
WOS关键词 | AIR-POLLUTION ; TRANSPORT ; CLIMATE ; MODEL ; ATMOSPHERE ; AEROSOLS ; SULFATE ; SENSITIVITY ; EMISSIONS ; IMPACTS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19599 |
专题 | 气候变化 |
作者单位 | 1.Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08544 USA; 2.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA |
推荐引用方式 GB/T 7714 | Shen, Zhaoyi,Ming, Yi,Horowitz, Larry W.,et al. On the Seasonality of Arctic Black Carbon[J]. JOURNAL OF CLIMATE,2017,30(12). |
APA | Shen, Zhaoyi,Ming, Yi,Horowitz, Larry W.,Ramaswamy, V.,&Lin, Meiyun.(2017).On the Seasonality of Arctic Black Carbon.JOURNAL OF CLIMATE,30(12). |
MLA | Shen, Zhaoyi,et al."On the Seasonality of Arctic Black Carbon".JOURNAL OF CLIMATE 30.12(2017). |
条目包含的文件 | 条目无相关文件。 |
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