Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.04.024 |
Evaluation of satellite aerosol retrievals with in situ aircraft and ground measurements: Contribution of relative humidity | |
Quan, Jiannong1,2; Jiang, Chunlai3; Xin, Jinyuan4; Zhao, Xiujuan1; Jia, Xingcan1; Liu, Quan2; Gao, Yang5; Chen, Dan1 | |
2018-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 212页码:1-5 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The contribution of relative humidity (RH) on Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) was investigated based on in-situ aircraft and ground observations of aerosol and RH from 2007 to 2010 in Beijing, China. The profiles of dry aerosol particle number and size distributions with diameter ranging from 0.1 to 3.0 mu m as well as RH were observed during aircraft measurement. The calculated AOD based on aircraft observed dry aerosol particles is lower than MODIS AOD under high RH, but consistent with MODIS AOD after accounting for the aerosol hygroscopic growth effect. A comparison of ground PM2.5 and MODIS AOD further shows that the ratio of PM2.5 concentration to AOD decreases with RH. These results collectively suggest that a strong aerosol hygroscopic growth effect on AOD. The averaged contribution of RH (hygroscopic growth) on AOD are estimated as 37% and 22% respectively based on in-situ aircraft and ground measurements, and hence aerosol concentration would be overestimated if the aerosol hygroscopic growth effect is neglected. As a result, it should be cautious with the applications of AOD in studying the complex relationships between aerosol and its climatic effects. |
英文关键词 | Relative humidity AOD Aircraft measurements |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439403300001 |
WOS关键词 | PLANETARY BOUNDARY-LAYER ; BEIJING-TIANJIN-HEBEI ; OPTICAL-PROPERTIES ; MODIS AOD ; POLLUTION ; CHINA ; PM2.5 ; RESOLUTION ; EVOLUTION ; THICKNESS |
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/38099 |
专题 | 地球科学 |
作者单位 | 1.Chinese Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 2.Beijing Weather Modificat Off, Beijing, Peoples R China; 3.Chinese Acad Environm Planning, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China; 5.Chinese Acad Meteorol Sci, Weather Modificat Ctr, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Quan, Jiannong,Jiang, Chunlai,Xin, Jinyuan,et al. Evaluation of satellite aerosol retrievals with in situ aircraft and ground measurements: Contribution of relative humidity[J]. ATMOSPHERIC RESEARCH,2018,212:1-5. |
APA | Quan, Jiannong.,Jiang, Chunlai.,Xin, Jinyuan.,Zhao, Xiujuan.,Jia, Xingcan.,...&Chen, Dan.(2018).Evaluation of satellite aerosol retrievals with in situ aircraft and ground measurements: Contribution of relative humidity.ATMOSPHERIC RESEARCH,212,1-5. |
MLA | Quan, Jiannong,et al."Evaluation of satellite aerosol retrievals with in situ aircraft and ground measurements: Contribution of relative humidity".ATMOSPHERIC RESEARCH 212(2018):1-5. |
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