Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3964/j.issn.1000-0593(2021)02-0345-09 |
Study on the Relationship Between Urban Traffic Flow and Tropospheric NO2 Vertical Column Density in Oasis on the North Slope of Tianshan Mountain | |
Zhao Xiao-rong; Li Yan-hong | |
通讯作者 | Li, YH (corresponding author), Xinjiang Normal Univ, Coll Geog Sci & Tourism, Urumqi 830054, Peoples R China. ; Li, YH (corresponding author), Xinjiang Lab Lake Environm & Recourse Arid Area, Key Lab Xinjiang Uygur Autonomous Reg, Urumqi 830054, Peoples R China. |
来源期刊 | SPECTROSCOPY AND SPECTRAL ANALYSIS |
ISSN | 1000-0593 |
出版年 | 2021 |
卷号 | 41期号:2页码:345-353 |
英文摘要 | Inquiring into the northern region of Tianshan Mountain valley oasis, urban traffic and the link between tropospheric NO2 vertical column density, Employing ground-based multi-axis difference spectrometer, (Mini MAX-DOAS) in 2018-2019, the north slope of Tianshan Mountains, economic belt comprehensive city Urumqi, Shihezi and in addition, medium-sized city, small continuous fixed monitoring Fukang city downtown area, carrying on the vehicle-mounted mobile monitoring on the city traffic trunk road, based on the urban traffic condition. Studying the influence of the tropospheric NO2 vertical column density, and analysis of mountain valley oasis city with developed cities of middle basin system's pollution differences. The results show that: (1) Medium cities of the north slope of Tianshan Mountain cities of daily mean value flow in Urumqi (1 406/5 min) greater than the small and medium-sized cities, medium-sized city Shihezi (203/5 min) and the small city Fukang (185/5 min), there is no significant difference (p>0. 05) , and all kinds of city NO2 VCD overall significant difference (p<0. 05), the daily variation of the peak, Urumqi (22. 613 X 10(15) molec . cm(2)) > Fukang (17. 758 X 10(1)(5) molec . cm(2)) > Shihezi (15. 272 X 10(1)(5) molec . cm(2)). The daily variation trend of traffic flow and NO2 VCD in the three cities is consistent, showing a trend of high in the morning and evening, low at noon. In the seasonal variation, the traffic flow and NO2 VCD of the three types of cities are: winter and spring>autumn and summer; (2) Although the traffic flow at the monitoring points in the morning and evening is different, the traffic flow of the three types of cities is concentrated near the city center; The movement monitoring data show that the high NO2 VCD value occurs in urban areas with high traffic flow, and when the wind direction is stable in each city, the downwind concentration is greater than the upwind concentration. Due to the differences of living space, people's activities in various functional areas of the city, traffic flow and NO2 VCD are concentrated in the commercial district with dense population, indicating that vehicles have a great contribution to NO2 VCD; (3)2009-2019, ten years north slope of Tianshan Mountain medium cities economic growth rate of GDP over 200% , Urumqi, Shihezi motor vehicle growth rate than developed cities such as Beijing, Shanghai, rapid urban development, and in the valley oasis area, low meteorological terrain north, the winter inversion layer, deep calm wind days more, heating period 6 months long, causing serious pollution in winter. In addition to the anthropogenic pollution discharge, natural factors contribute to the accumulation of pollutants in the north slope of Tianshan Mountain. |
英文关键词 | The north slope of Tianshan Mountain Traffic flow Troposphere NO2 vertical column density Ground-based MAX-DOAS(Multi-axis differential optical absorption spectroscopy) |
类型 | Article |
语种 | 中文 |
收录类别 | SCI-E |
WOS记录号 | WOS:000626516700003 |
WOS类目 | Spectroscopy |
WOS研究方向 | Spectroscopy |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/351802 |
作者单位 | [Zhao Xiao-rong; Li Yan-hong] Xinjiang Normal Univ, Coll Geog Sci & Tourism, Urumqi 830054, Peoples R China; [Zhao Xiao-rong; Li Yan-hong] Xinjiang Lab Lake Environm & Recourse Arid Area, Key Lab Xinjiang Uygur Autonomous Reg, Urumqi 830054, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao Xiao-rong,Li Yan-hong. Study on the Relationship Between Urban Traffic Flow and Tropospheric NO2 Vertical Column Density in Oasis on the North Slope of Tianshan Mountain[J],2021,41(2):345-353. |
APA | Zhao Xiao-rong,&Li Yan-hong.(2021).Study on the Relationship Between Urban Traffic Flow and Tropospheric NO2 Vertical Column Density in Oasis on the North Slope of Tianshan Mountain.SPECTROSCOPY AND SPECTRAL ANALYSIS,41(2),345-353. |
MLA | Zhao Xiao-rong,et al."Study on the Relationship Between Urban Traffic Flow and Tropospheric NO2 Vertical Column Density in Oasis on the North Slope of Tianshan Mountain".SPECTROSCOPY AND SPECTRAL ANALYSIS 41.2(2021):345-353. |
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