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| DOI | 10.1016/j.atmosres.2019.03.003 |
| Identification of absorbing aerosol types at a site in the northern edge of Indo-Gangetic Plain and a polluted valley in the foothills of the central Himalayas | |
| Rupakheti D.; Kang S.; Rupakheti M.; Cong Z.; Panday A.K.; Holben B.N. | |
| Date Issued | 2019 |
| ISSN | 01698095 |
| Volume | 223 |
| Other Abstract | Identification of atmospheric aerosol types and characterization of absorbing aerosols, based on AErosol RObotic NETwork (AERONET) data collected during 2013–2014 over two sites in Nepal: Lumbini in the northernmost part of central Indo-Gangetic Plain (IGP) and Kathmandu Valley in foothills of the central Himalayas, have been conducted in the present study. The relationship between four aerosol parameters; Extinction Angstrom Exponent (EAE), Absorption Angstrom Exponent (AAE), Single Scattering Albedo (SSA) and Real Refractive Index (RRI) was analyzed to study the aerosol types. This resulted in the identification of two types of aerosols concerning their origin: biomass burning and urban/industrial mix. Furthermore, to understand the absorbing aerosol types, the relationship between aerosol size parameters; Fine Mode Fraction (FMF) and Angstrom Exponent (AE), and aerosol absorption characteristics; SSA and AAE were investigated. In regards to the absorbing aerosol types, ‘Mostly BC’ was the dominant absorbing aerosol, over both sites, with comparatively negligible contribution from other absorbing aerosol types such as dust. The aerosol subtypes obtained from satellite-borne CALIPSO instrument supported the results derived from the AERONET data. The CALIPSO images also indicated that the aerosols over the foothills of the Himalayas could extend to the height of >5 km above the ground, which could be transported towards the Himalayan and Tibetan Plateau (HTP) region with sensitive ecosystems. The multi-sites based study of long-term records is required to elucidate the nature and trends of aerosols in the HTP region and any perturbation to the atmospheric environment and other environments in this region. © 2019 Elsevier B.V. |
| enkeywords | Absorbing aerosols; Aerosol types; Biomass burning; Central Himalayas; Mostly BC; Urban industrial |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85062464125&doi=10.1016%2fj.atmosres.2019.03.003&partnerID=40&md5=dd0bcbae03e694515bf73fc8cd5b4d0a |
| Language | 英语 |
| scopus keywords | Refractive index; Absorbing aerosol; Aerosol types; Biomass-burning; Himalayas; Mostly BC; Urban industrial; Atmospheric aerosols; absorption; AERONET; aerosol; atmospheric transport; biomass burning; black carbon; industrial emission; size distribution; valley; Gangetic Plain; Himalayas; Kathmandu Valley; Nepal; Nepal |
| journal | Atmospheric Research
 |
| Source Publication | 中国科学院西北生态环境资源研究院 |
| Document Type | 期刊论文 |
| Identifier | http://gcip.llas.ac.cn/handle/2XKMVOVA/77336 |
| Recommended Citation GB/T 7714 | Rupakheti D.； Kang S.； Rupakheti M.； Cong Z.； Panday A.K.； Holben B.N.. Identification of absorbing aerosol types at a site in the northern edge of Indo-Gangetic Plain and a polluted valley in the foothills of the central Himalayas[J]. 中国科学院西北生态环境资源研究院,2019,223. |
| APA | Rupakheti D.； Kang S.； Rupakheti M.； Cong Z.； Panday A.K.； Holben B.N..(2019).Identification of absorbing aerosol types at a site in the northern edge of Indo-Gangetic Plain and a polluted valley in the foothills of the central Himalayas.Atmospheric Research,223. |
| MLA | Rupakheti D.； Kang S.； Rupakheti M.； Cong Z.； Panday A.K.； Holben B.N.."Identification of absorbing aerosol types at a site in the northern edge of Indo-Gangetic Plain and a polluted valley in the foothills of the central Himalayas".Atmospheric Research 223(2019). |
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