干旱区生态环境知识资源中心(Arid): The Temporal-Spatial Characteristics of Column NO2 Concentration and Influence Factors in Xinjiang of Northwestern Arid Region in China

Arid

DOI	10.3390/atmos13101533
	The Temporal-Spatial Characteristics of Column NO2 Concentration and Influence Factors in Xinjiang of Northwestern Arid Region in China
	Yu, Zhixiang; Li, Xia
通讯作者	Li, X
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2022
卷号	13 期号:10
英文摘要	This paper investigates the temporal-spatial characteristics of column NO2 concentration and influence factors in Xinjiang based on the Tropospheric Monitoring Instrument (TROPOMI) aboard the EU/ESA Sentinel-5 Precursor satellite. The findings indicate that there is a high linear correlation between TROPOMI NO2 data and ground-based data, with Yining having the highest correlation (R-2 = 0.8132) and Aksu having the lowest correlation (R-2 = 0.7307). The TROPOMI NO2 data can be used to approximate the characteristics of near-surface atmospheric NO2 concentration. NO2 VCD in the troposphere varies greatly geographically, with a noticeable 'island' pattern. The high-value zones are mostly found on the northern slope of Tianshan Mountain, in the capital cities of several prefectures, and occasionally in the industrial parks. Urumqi has the highest annual average NO2 VCD of 553.9 x 10(-6) mol center dot m(-2). The NO2 VCD is characterized by seasonal shifts and cyclical swings of low in spring, high in winter, and transition in summer and autumn. The monthly mean value is highest in December (27.14 x 10(-6) mol m(-2)) and lowest in March (12.66 x 10(-6) mol m(-2)). Meteorological factors can influence the temporal and spatial distribution of NO2 VCD. The GRA in Urumqi is 0.774 between the monthly mean of NO2 VCD and relative humidity. The main causes of the increase in NO2 VCD are man-made emissions. The annual GDP of the secondary industry and its annual average NO2 VCD in fifteen key cities in Xinjiang have a correlation coefficient of 0.78. TROPOMI NO2 data can provide strong support for the fine control of air pollution and air quality in early warning forecast in Xinjiang.
英文关键词	sentinel-5P TROPOMI NO2 Xinjiang
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:000872298800001
WOS关键词	LONG-TERM TRENDS ; TROPOSPHERIC NO2 ; MAX-DOAS ; SO2 ; VALIDATION ; EMISSIONS ; AIRBORNE ; PM2.5 ; O-3
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391928
推荐引用方式 GB/T 7714	Yu, Zhixiang,Li, Xia. The Temporal-Spatial Characteristics of Column NO2 Concentration and Influence Factors in Xinjiang of Northwestern Arid Region in China[J],2022,13(10).
APA	Yu, Zhixiang,&Li, Xia.(2022).The Temporal-Spatial Characteristics of Column NO2 Concentration and Influence Factors in Xinjiang of Northwestern Arid Region in China.ATMOSPHERE,13(10).
MLA	Yu, Zhixiang,et al."The Temporal-Spatial Characteristics of Column NO2 Concentration and Influence Factors in Xinjiang of Northwestern Arid Region in China".ATMOSPHERE 13.10(2022).