干旱区生态环境知识资源中心(Arid): Classifying aerosol type using in situ and satellite observations over a semi-arid station, Anantapur, from southern peninsular India

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DOI	10.1016/j.asr.2023.03.046
	Classifying aerosol type using in situ and satellite observations over a semi-arid station, Anantapur, from southern peninsular India
	Vadde, Suryanarayana; Kalluri, Raja Obul Reddy; Gugamsetty, Balakrishnaiah; Kotalo, Rama Gopal; Virupakshappa, Usha Kajjer; Akkiraju, Bhavyasree; Thotli, Lokeswara Reddy; Lingala, Siva Sankara Reddy; Rapole, Jeevan Kumar
通讯作者	Kotalo, RG
来源期刊	ADVANCES IN SPACE RESEARCH
ISSN	0273-1177
EISSN	1879-1948
出版年	2023
卷号	72 期号:4 页码:1109-1122
英文摘要	The chemical composition of aerosols is crucial for understanding aerosol radiative characteristics, classifying aerosol sources, and improving atmospheric aerosol satellite retrieval algorithms. In this study, the absorption angstrom exponent (AAE) and scattering angstrom exponent (SAE) values are derived from an aethalometer and three wavelength integrating nephelometer. MERRA-2 (Modern-Era Retrospective Study for Research and Applications) speciated aerosol optical depths and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) aerosol subtypes are utilized for the identification of a possible aerosol type over a semi-arid station, Anantapur, in Southern peninsular India from March 2016 to February 2018. Analysis from MERRA-2 for different aerosols illustrates that sulphate aerosol optical depth (SO4 AOD) dominates (>0.16) during winter and post-monsoon, while dust aerosol optical depth (DU AOD), organic carbon optical depth (OCAOD), and sulphate aerosol optical depth (SO4 AOD) mainly contributed (>0.07) to the total AOD during summer. SO4 AOD accounted for over similar to 50% of total AOD during winter and postmonsoon, whereas DU AOD accounted for<10% of total aerosol optical depth in the respective seasons. The seasonal mean values of SAE (AAE) were found to be 1.95 +/- 0.37 (1.03 +/- 0.08), 1.65 +/- 0.55 (1.03 +/- 0.08), 2.53 +/- 0.20 (1.03 +/- 0.08) and 2.66 +/- 0.15 (1.0 3 +/- 0.08) during summer, monsoon, post-monsoon, and winter, respectively. AAE and SAE classification schemes showed that during winter, summer, and post-monsoon, continental polluted aerosols dominated (>56%), while dust and marine pollution aerosols dominated (similar to 47%) to the total aerosols during the monsoon. Continental aerosols are predominant during all seasons except for monsoon, and result from local anthropogenic activities and the transport of mineral dust particles and smoke aerosols from the north and western India. The observed aerosol types are consistent with the air mass back-trajectory cluster analysis performed with the help of Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT). The various aerosol types (absorbing and non-absorbing) and their change over a region are essential for for reducing the uncertainty in the assessment of aerosol radiative effects. (C) 2023 COSPAR. Published by Elsevier B.V. All rights reserved.
英文关键词	Aerosol optical depths Aerosol types HYSPLIT MERRA-2 Semi-arid region
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001062921000001
WOS关键词	BLACK CARBON AEROSOLS ; OPTICAL-PROPERTIES ; ATMOSPHERIC AEROSOLS ; LIGHT-ABSORPTION ; SCATTERING ; SURFACE ; PARTICLES ; REGION ; AETHALOMETER ; CAMPAIGN
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394981
推荐引用方式 GB/T 7714	Vadde, Suryanarayana,Kalluri, Raja Obul Reddy,Gugamsetty, Balakrishnaiah,et al. Classifying aerosol type using in situ and satellite observations over a semi-arid station, Anantapur, from southern peninsular India[J],2023,72(4):1109-1122.
APA	Vadde, Suryanarayana.,Kalluri, Raja Obul Reddy.,Gugamsetty, Balakrishnaiah.,Kotalo, Rama Gopal.,Virupakshappa, Usha Kajjer.,...&Rapole, Jeevan Kumar.(2023).Classifying aerosol type using in situ and satellite observations over a semi-arid station, Anantapur, from southern peninsular India.ADVANCES IN SPACE RESEARCH,72(4),1109-1122.
MLA	Vadde, Suryanarayana,et al."Classifying aerosol type using in situ and satellite observations over a semi-arid station, Anantapur, from southern peninsular India".ADVANCES IN SPACE RESEARCH 72.4(2023):1109-1122.