干旱区生态环境知识资源中心(Arid): The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations

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DOI	10.4209/aaqr.210101
	The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations
	Palle, Surya Nagi Reddy; Tandule, Chakradhar Rao; Kalluri, Raja Obul Reddy; Gugamsetty, Balakrishnaiah; Kotalo, Rama Gopal; Thotli, Lokeswara Reddy; Akkiraju, Bhavyasree; Lingala, Siva Sankara Reddy
通讯作者	Kotalo, RG (corresponding author), Sri Krishnadevaraya Univ, Dept Phys, Aerosol & Atmospher Res Lab, Anantapur, Andhra Pradesh, India.
来源期刊	AEROSOL AND AIR QUALITY RESEARCH
ISSN	1680-8584
EISSN	2071-1409
出版年	2021
卷号	21 期号:11
英文摘要	In the present study, we focused on the impact of lockdown on black carbon (eBC) mass concentrations and their associated radiative implications from 01st March to 30th June 2020, over a semi-arid station, i.e., in the district of Anantapur in Southern India. The mean eBC mass concentration was observed before lockdown (01st-24th March 2020) and during the lockdown (25th March-30th June 2020) period and was about 1.74 +/- 0.36 and 1.11 +/- 0.14 mu g m(-3), respectively. The sharp decrease (similar to 35%) of eBC mass concentration observed during the lockdown (LD) period as compared with before lockdown (BLD) period, was mainly due to the reduction of anthropogenic activities and meteorology. Furthermore, during the entire LD period, the net composite forcing at the top of the atmosphere (TOA) and at the surface (SUR) varied from -4.52 to -6.19 Wm(-2) and -22.91 to -29.35 Wm(-2), respectively, whereas the net forcing in the atmosphere (ATM) varied from 17.27 to 23.16 Wm(-2). Interestingly, the amount of energy trapped in the atmosphere due to eBC is 11.19 Wm(-2) before LD and 8.56 Wm(-2) during LD. It is concluded that eBC contributes almost 43-50% to the composite forcing. As a result, the eBC atmospheric heating rate decreased significantly (25%) when compared to before lockdown days to lockdown days.
英文关键词	COVID-19 Equivalent black carbon Fossil fuel Radiative forcing Semi-arid
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000725277400011
WOS关键词	LIGHT-ABSORPTION MEASUREMENTS ; BLACK CARBON AEROSOLS ; OPTICAL-PROPERTIES ; SOURCE APPORTIONMENT ; TRACE GASES ; AIR-QUALITY ; AETHALOMETER ; WOOD ; CHINA ; URBAN
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373694
作者单位	[Palle, Surya Nagi Reddy; Tandule, Chakradhar Rao; Kalluri, Raja Obul Reddy; Gugamsetty, Balakrishnaiah; Kotalo, Rama Gopal; Thotli, Lokeswara Reddy; Akkiraju, Bhavyasree; Lingala, Siva Sankara Reddy] Sri Krishnadevaraya Univ, Dept Phys, Aerosol & Atmospher Res Lab, Anantapur, Andhra Pradesh, India
推荐引用方式 GB/T 7714	Palle, Surya Nagi Reddy,Tandule, Chakradhar Rao,Kalluri, Raja Obul Reddy,et al. The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations[J],2021,21(11).
APA	Palle, Surya Nagi Reddy.,Tandule, Chakradhar Rao.,Kalluri, Raja Obul Reddy.,Gugamsetty, Balakrishnaiah.,Kotalo, Rama Gopal.,...&Lingala, Siva Sankara Reddy.(2021).The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations.AEROSOL AND AIR QUALITY RESEARCH,21(11).
MLA	Palle, Surya Nagi Reddy,et al."The Impact of Lockdown on eBC Mass Concentration over a Semi-arid Region in Southern India: Ground Observation and Model Simulations".AEROSOL AND AIR QUALITY RESEARCH 21.11(2021).