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| DOI | 10.1016/j.atmosenv.2021.118653 |
| Vertical profile of aerosol characteristics including activation over a rain shadow region in India | |
| Varghese M.; Jose J.; Anu A.S.; Konwar M.; Murugavel P.; Kalarikkal N.; Deshpande M.; Prabha T.V. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 262 |
| 英文摘要 | Unique airborne observations of aerosol size spectral and chemical characteristics over the peninsular Indian region are illustrated in this case study. Multimodal lognormal distributions were required to fit the observed in situ aerosol size distribution. The aerosol composition and mixing state was deduced from the single-particle analyses of aerosols using the transmission electron microscope and soot photometer coupled with satellite retrieved aerosol classification, and back trajectory analyses. Organic carbon was the most prominent aerosol type found at all altitudes. Refractory black carbon aerosols which constituted about 10–12% of the aerosols in the boundary layer were primarily internally mixed with both inorganic and organic coating. Other major aerosol types were dust and sea salt, with the latter primarily found below 2 km. Further, the cloud forming ability of in-situ aerosols is tested through a cloud condensation nuclei closure analysis. The effective hygroscopicity decreased above cloud base due to the absence of sea salt aerosols. The change in large-scale winds with altitude affected the aerosol composition and hygroscopicity. The multimodal aerosol size distribution and hygroscopicity parameter (κ = 0.18) obtained for the cloud base aerosols over the rain shadow region are useful for studying aerosol-cloud interactions using regional cloud-resolving models. © 2021 Elsevier Ltd |
| 关键词 | CAIPEEXCCN closureHygroscopicity parameterLognormal distributionSolapur |
| 语种 | 英语 |
| scopus关键词 | Boundary layers; Codes (symbols); Organic carbon; Particle size analysis; Rain; Size distribution; Transmission electron microscopy; Aerosol composition; Aerosol size distributions; CAIPEEX; CCN closure; Hygroscopicity parameter; Log-normal distribution; Multi-modal; Rain shadow; Shadow regions; Solapur; Aerosols; aerosol; aerosol composition; airborne survey; black carbon; boundary layer; cloud condensation nucleus; particle size; rainfall; sea salt; vertical profile; India |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248272 |
| 作者单位 | Indian Institute of Tropical Meteorology (Ministry of Earth Sciences), Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India; International and Inter University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala 686560, India; School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, Kerala 686560, India; Department of Atmospheric and Space Science, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India |
| 推荐引用方式 GB/T 7714 | Varghese M.,Jose J.,Anu A.S.,et al. Vertical profile of aerosol characteristics including activation over a rain shadow region in India[J],2021,262. |
| APA | Varghese M..,Jose J..,Anu A.S..,Konwar M..,Murugavel P..,...&Prabha T.V..(2021).Vertical profile of aerosol characteristics including activation over a rain shadow region in India.ATMOSPHERIC ENVIRONMENT,262. |
| MLA | Varghese M.,et al."Vertical profile of aerosol characteristics including activation over a rain shadow region in India".ATMOSPHERIC ENVIRONMENT 262(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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