干旱区生态环境知识资源中心(Arid): Diurnal, seasonal, and vertical distribution of carbon monoxide levels and their potential sources over a semi-arid region, India

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DOI	10.20937/ATM.52808
	Diurnal, seasonal, and vertical distribution of carbon monoxide levels and their potential sources over a semi-arid region, India
	Busa, Elijabetthamma; Gugamsetty, Balakrishnaiah; Kalluri, Raja Obul Reddy; Kotalo, Rama Gopal; Tandule, Chakradhar Rao; Thotli, Lokeswara Reddy; Chakala, Manjunatha; Palle, Surya Nagi Reddy
通讯作者	Kotalo, RG
来源期刊	ATMOSFERA
ISSN	0187-6236
EISSN	2395-8812
出版年	2022
卷号	35 期号:1 页码:165-178
英文摘要	The present study focuses on the investigation of both near-surface and vertical variability of carbon monoxide (CO) concentrations and their potential sources obtained from both in situ and satellite Measurements of Pollution in the Troposphere (MOPITT) over a semiarid region (Anantapur, India) from January 2016 to December 2017. The diurnal variation of CO shows sharp morning (07:00-09:00 LT) and evening (07:0009:00 LT) peaks associated to local anthropogenic activities as well as the impact of the mixed layer height, and low concentrations during daytime (12:00-15:00 LT). The low levels during afternoon hours may be due to the increase of the mixed layer height and the decrease of anthropogenic sources. The seasonal mean CO showed no obvious variation, with highest levels observed in winter (329 +/- 52 ppbv), followed by the pre-monsoon (327 +/- 57 ppbv), post-monsoon (234 +/- 36 ppbv) and monsoon (192 +/- 22 ppbv). The high levels of CO during the winter are attributed to increased emissions from anthropogenic sources and a shallow mixed layer height. The vertical distribution of CO showed secondary peaks at high-pressure levels (300-200 hPa) during winter, pre-monsoon, and post-monsoon, which indicates CO transport from different source regions. These findings are reasonably confirmed through the air mass Concentrated Weighted Trajectory (CWT) analysis obtained from the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model. This study suggests that except for the monsoon, air masses transported from Indo-Gangetic Basin region also contribute to the enhancement of CO concentrations at the receptor site.
英文关键词	carbon monoxide MOPITT HYSPLIT semiarid
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000790058400005
WOS关键词	ATMOSPHERIC AEROSOLS ; KATHMANDU VALLEY ; SURFACE OZONE ; BLACK CARBON ; URBAN SITE ; CO ; ABSORPTION ; PRECURSORS ; TRANSPORT ; ANANTAPUR
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391902
推荐引用方式 GB/T 7714	Busa, Elijabetthamma,Gugamsetty, Balakrishnaiah,Kalluri, Raja Obul Reddy,et al. Diurnal, seasonal, and vertical distribution of carbon monoxide levels and their potential sources over a semi-arid region, India[J],2022,35(1):165-178.
APA	Busa, Elijabetthamma.,Gugamsetty, Balakrishnaiah.,Kalluri, Raja Obul Reddy.,Kotalo, Rama Gopal.,Tandule, Chakradhar Rao.,...&Palle, Surya Nagi Reddy.(2022).Diurnal, seasonal, and vertical distribution of carbon monoxide levels and their potential sources over a semi-arid region, India.ATMOSFERA,35(1),165-178.
MLA	Busa, Elijabetthamma,et al."Diurnal, seasonal, and vertical distribution of carbon monoxide levels and their potential sources over a semi-arid region, India".ATMOSFERA 35.1(2022):165-178.