Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.06.019 |
Aerosol optical, microphysical and radiative forcing properties during variable intensity African dust events in the Iberian Peninsula | |
Fernandez, A. J.1; Molero, F.1; Salvador, P.1; Revuelta, A.2; Becerril-Valle, M.1; Gomez-Moreno, F. J.1; Artinano, B.1; Pujadas, M.1 | |
2017-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 196 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | Aerosol measurements at two AERONET (AErosol RObotic NETwork) sites of the Iberian Peninsula: Madrid (40 degrees.45N, 3.72W) and La Coruna (43 degrees.36N, 8 degrees.42W) have been analyzed for the period 20122015 to assess aerosol optical properties (intensive and extensive) throughout the atmospheric column and their radiative forcing (RF) and radiative forcing efficiency (RFeff) estimates at the Bottom and Top Of Atmosphere (BOA and TOA respectively). Specific conditions as dust-free and African dust have been considered for the study. Unprecedented, this work uses the quantification of the African dust aerosol at ground level which allows us to study such AERONET products at different intensity levels of African events: Low (L), High (H) and very high (VH). The statistical difference between dust-free and African dust conditions on the aforementioned parameters, quantified by means of the non-parametric Kolmogorov-Smirnov test, is quite clear in Madrid, however it is not in La CoruNa. Scattering Angstrom Exponent (SAE) and Absorption Angstrom Exponent (AAE) were found to be 1.64 +/- 0.29 and 1.14 +/- 0.23 respectively in Madrid for dust-free conditions because typical aerosol sources are traffic emissions and residential heating, and black carbon is an important compound in this aerosol kind. On the other hand, SAE and AAE were 0.96 +/- 0.60 and 1.44 +/- 0.51 for African dust conditions in this location. RF (at shortwave radiation) seems to decrease as the African dust contribution at ground level is larger which indicates the cooling effect of African dust aerosol in Madrid. We have also proved the potential of a 2D-cluster analysis based on AAE and SAE to differentiate both situations in Madrid. Conversely, it is suggested that aerosols observed in La Coruna under dust-free conditions might come from different sources. Then, SAE and AAE are not good enough indicators to distinguish between dust-free and African dust conditions. Besides, as La Coruna is at a further distance than Madrid from the African dust source it is believed that aerosol optical properties might significantly change due to some deposition and aging/coating process and therefore the cooling effect (RF decreases as the African dust contribution at ground level is larger) is not observed. |
英文关键词 | Aerosols Optical and microphysical properties Radiative forcing estimates African dust |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409290200012 |
WOS关键词 | PARTICULATE MATTER ; AERONET ; ABSORPTION ; SCATTERING ; VARIABILITY ; SPAIN ; PM10 ; AREA |
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/38044 |
专题 | 地球科学 |
作者单位 | 1.Ctr Invest Energet Medioambientales & Tecnol CIEM, Dept Environm, Avda Compiumnse 40, Madrid 28040, Spain; 2.Agencia Estatal Meteorol AEMET, C Leonardo Prieto Castro 8, Madrid 28071, Spain |
推荐引用方式 GB/T 7714 | Fernandez, A. J.,Molero, F.,Salvador, P.,et al. Aerosol optical, microphysical and radiative forcing properties during variable intensity African dust events in the Iberian Peninsula[J]. ATMOSPHERIC RESEARCH,2017,196. |
APA | Fernandez, A. J..,Molero, F..,Salvador, P..,Revuelta, A..,Becerril-Valle, M..,...&Pujadas, M..(2017).Aerosol optical, microphysical and radiative forcing properties during variable intensity African dust events in the Iberian Peninsula.ATMOSPHERIC RESEARCH,196. |
MLA | Fernandez, A. J.,et al."Aerosol optical, microphysical and radiative forcing properties during variable intensity African dust events in the Iberian Peninsula".ATMOSPHERIC RESEARCH 196(2017). |
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