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DOI | 10.5194/acp-20-7911-2020 |
The vertical variability of black carbon observed in the atmospheric boundary layer during DACCIWA | |
Altstaedter, Barbara1; Deetz, Konrad2; Vogel, Bernhard2; Babic, Karmen2,4; Dione, Cheikh3,5; Pacifico, Federica3; Jambert, Corinne3; Ebus, Friederike1; Baerfuss, Konrad1; Paetzold, Falk1; Lampert, Astrid1; Adler, Bianca2,6,7; Kalthoff, Norbert2; Lohou, Fabienne3 | |
2020-07-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:13页码:7911-7928 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; France; Croatia; Niger; USA |
英文摘要 | This study underlines the important role of the transported black carbon (BC) mass concentration in the West African monsoon (WAM) area. BC was measured with a micro-aethalometer integrated in the payload bay of the unmanned research aircraft ALADINA (Application of Lightweight Aircraft for Detecting IN situ Aerosol). As part of the DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa) project, 53 measurement flights were carried out at Save, Benin, on 2-16 July 2016. A high variability of BC (1.79 to 2.42 +/- 0.31 mu g m(-3)) was calculated along 155 vertical profiles that were performed below cloud base in the atmospheric boundary layer (ABL). In contrast to initial expectations of primary emissions, the vertical distribution of BC was mainly influenced by the stratification of the ABL during the WAM season. The article focuses on an event (14 and 15 July 2016) which showed distinct layers of BC in the lowermost 900 m above ground level (a.g.L.). Low concentrations of NO, and CO were sampled at the Save supersite near the aircraft measurements and suggested a marginal impact of local sources during the case study. The lack of primary BC emissions was verified by a comparison of the measured BC with the model COSMO-ART (Consortium for Small-scale Modelling-Aerosols and Reactive Trace gases) that was applied for the field campaign period. The modelled vertical profiles of BC led to the assumption that the measured BC was already altered, as the size was mainly dominated by the accumulation mode. Further, calculated vertical transects of wind speed and BC presume that the observed BC layer was transported from the south with maritime inflow but was mixed vertically after the onset of a nocturnal low-level jet at the measurement site. This report contributes to the scope of DACCIWA by linking airborne BC data with ground observations and a model, and it illustrates the importance of a more profound understanding of the interaction between BC and the ABL in the WAM region. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000548519500003 |
WOS关键词 | SOUTHERN WEST-AFRICA ; CHEMISTRY-CLOUD INTERACTIONS ; LEVEL STRATUS CLOUDS ; DIURNAL CYCLE ; FIELD CAMPAIGN ; AEROSOL ; ABSORPTION ; AETHALOMETER ; AIRCRAFT ; PARTICLES |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
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/283252 |
专题 | 地球科学 |
作者单位 | 1.Tech Univ Carolo Wilhelmina Braunschweig, Inst Flight Guidance, Braunschweig, Germany; 2.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany; 3.Univ Toulouse, Lab Aerol, UPS, CNRS, Toulouse, France; 4.Croatia Control Ltd, Velika Gorica, Croatia; 5.African Ctr Meteorol Applicat Dev, Niamey, Niger; 6.Univ Colorado, CIRES, Boulder, CO 80309 USA; 7.NOAA, Phys Sci Lab, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Altstaedter, Barbara,Deetz, Konrad,Vogel, Bernhard,et al. The vertical variability of black carbon observed in the atmospheric boundary layer during DACCIWA[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(13):7911-7928. |
APA | Altstaedter, Barbara.,Deetz, Konrad.,Vogel, Bernhard.,Babic, Karmen.,Dione, Cheikh.,...&Lohou, Fabienne.(2020).The vertical variability of black carbon observed in the atmospheric boundary layer during DACCIWA.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(13),7911-7928. |
MLA | Altstaedter, Barbara,et al."The vertical variability of black carbon observed in the atmospheric boundary layer during DACCIWA".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.13(2020):7911-7928. |
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