Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029814 |
Aerosol Optical Depth and Burden From Large Sea Salt Particles | |
Fei, Ke-ce1,2; Wu, Lin3; Zeng, Qing-cun1 | |
2019-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:3页码:1680-1696 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Sea salt aerosol (SSA) particles are natural aerosols which exert a large impact on various geo-chemical and geophysical processes and on Earth's climate. Emissions of SSA are mainly influenced by the wind near ocean surface. By so far, most models do not consider SSA with dry radius r(d)>10m. For example, the cutoff size of coarse SSA's r(d) in the Community Earth System Model is about 10m. However, laboratory experiments have provided the evidence that numerous large droplets are not accounted for in theoretical estimations of sea spray generation, especially in high-wind conditions, which consequently affect the large SSA emissions. This study assesses the impact of large SSA on aerosol optical depth (AOD) and aerosol burden in the atmosphere by using Community Earth System Model but with a new parameterization of large SSA emissions in high-wind conditions. Our simulations show that considering the large SSA in the model, the simulated AOD over midlatitude and high-latitude oceans are more consistent with the observation from both Moderate Resolution Imaging Spectroradiometer and Aerosol Robotic Network. And we also found that despite dry deposition, large SSA with r(d)>10m can contribute more than 15% to the total AOD over midlatitude and high-latitude oceans, particularly over oceans between 40 and 65 degrees S, and about 28.5% to the total global SSA mass burden. Plain Language Summary One large size sea salt aerosol mode is introduced in model emission to supplement the high-wind conditions. Aerosol optical depth and burden of sea salt aerosol with the large size mode are studied in Community Earth System Model. Simulated aerosol optical depth with the large size mode improve the agreements with observations, especially in high-wind regions. |
英文关键词 | sea salt aerosol optical depth aerosol burden |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000459377000029 |
WOS关键词 | COMMUNITY CLIMATE MODEL ; SPRAY GENERATION ; NATIONAL CENTER ; PARAMETERIZATION |
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/33525 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China; 2.Grad Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Fei, Ke-ce,Wu, Lin,Zeng, Qing-cun. Aerosol Optical Depth and Burden From Large Sea Salt Particles[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(3):1680-1696. |
APA | Fei, Ke-ce,Wu, Lin,&Zeng, Qing-cun.(2019).Aerosol Optical Depth and Burden From Large Sea Salt Particles.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(3),1680-1696. |
MLA | Fei, Ke-ce,et al."Aerosol Optical Depth and Burden From Large Sea Salt Particles".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.3(2019):1680-1696. |
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