Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.11.020 |
Application of remote sensing techniques to study aerosol water vapour uptake in a real atmosphere | |
Fernandez, A. J.; Molero, F.; Becerril-Valle, M.; Coz, E.; Salvador, P.; Artinano, B.; Pujadas, M. | |
2018-04-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 202页码:112-127 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | In this work, a study of several observations of aerosol water uptake in a real (non-controlled) atmosphere, registered by remote sensing techniques, are presented. In particular, three events were identified within the Atmospheric Boundary Layer (ABL) and other two events were detected in the free troposphere (beyond the top of the ABL). Then, aerosol optical properties were measured at different relative humidity (RH) conditions by means of a multi-wavelength (MW) Raman lidar located at CIEMAT (Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas, Research Centre for Energy, Environment and Technology) facilities in Madrid (Spain). Additionally, aerosol optical and microphysical properties provided by automatic sun and sky scanning spectral radiometers (CIMEL CE-318) and a meteorological analysis complement the study. However, a detailed analysis only could be carried out for the cases observed within the ABL since well-mixed atmospheric layers are required to properly characterize these processes. This characterization of aerosol water uptake is based on the curve described by the backscatter coefficient at 532 nm as a function of RH which allows deriving the enhancement factor. Thus, the Hanel parameterization is utilized, and the results obtained are in the range of values reported in previous studies, which shows the suitability of this approach to study such hygroscopic processes. Furthermore, the anti-correlated pattern observed on backscatter-related Angstrom exponent (532/355 nm) and RH indicates plausible signs of aerosol hygroscopic growth. According to the meteorological analysis performed, we attribute such hygroscopic behaviour to marine aerosols which are advected from the Atlantic Ocean to the low troposphere in Madrid. We have also observed an interesting response of aerosols to RH at certain levels which it is suggested to be due to a hysteresis process. The events registered in the free troposphere, which deal with volcano and wild fire plumes transported at higher altitudes, indicate that these processes can take place in the free troposphere, where the climate relevance can be rather different considering the role of aerosol as cloud condensation nuclei. |
英文关键词 | Aerosol Lidar Optical properties Hygroscopicity |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426226500012 |
WOS关键词 | BIOMASS BURNING AEROSOLS ; LONG-RANGE TRANSPORT ; RAMAN-LIDAR ; OPTICAL-PROPERTIES ; HYGROSCOPIC GROWTH ; PARTICULATE MATTER ; IN-SITU ; EXTINCTION ; VARIABILITY ; BACKSCATTER |
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/38393 |
专题 | 地球科学 |
作者单位 | Ctr Invest Energet Medioambientales & Tecnol CIEM, Dept Environm, Avda Complutense 40, Madrid 28040, Spain |
推荐引用方式 GB/T 7714 | Fernandez, A. J.,Molero, F.,Becerril-Valle, M.,et al. Application of remote sensing techniques to study aerosol water vapour uptake in a real atmosphere[J]. ATMOSPHERIC RESEARCH,2018,202:112-127. |
APA | Fernandez, A. J..,Molero, F..,Becerril-Valle, M..,Coz, E..,Salvador, P..,...&Pujadas, M..(2018).Application of remote sensing techniques to study aerosol water vapour uptake in a real atmosphere.ATMOSPHERIC RESEARCH,202,112-127. |
MLA | Fernandez, A. J.,et al."Application of remote sensing techniques to study aerosol water vapour uptake in a real atmosphere".ATMOSPHERIC RESEARCH 202(2018):112-127. |
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