1.新疆师范大学地理科学与旅游学院,新疆 乌鲁木齐 830054
2.新疆维吾尔自治区重点实验室 / 新疆干旱区湖泊环境与资源实验室,新疆 乌鲁木齐 830054
马莹萍(1995年生),女;研究方向:干旱区资源与气候;E-mail:582952923@qq.com
李艳红(1977年生),女;研究方向:干旱区湖泊湿地生态恢复技术;lyh0704@126.com
纸质出版日期:2021-09-25,
网络出版日期:2021-01-14,
收稿日期:2020-08-02,
录用日期:2020-09-02
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马莹萍,李艳红,闫晶洁.克拉玛依市NO2和SO2垂直柱浓度特征分析[J].中山大学学报(自然科学版),2021,60(05):94-102.
MA Yingping,LI Yanhong,YAN Jingjie.The characteristics of NO2 and SO2 in column concentration over Karamay city[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2021,60(05):94-102.
马莹萍,李艳红,闫晶洁.克拉玛依市NO2和SO2垂直柱浓度特征分析[J].中山大学学报(自然科学版),2021,60(05):94-102. DOI: 10.13471/j.cnki.acta.snus.2020.08.02.2020D033.
MA Yingping,LI Yanhong,YAN Jingjie.The characteristics of NO2 and SO2 in column concentration over Karamay city[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2021,60(05):94-102. DOI: 10.13471/j.cnki.acta.snus.2020.08.02.2020D033.
为研究新疆克拉玛依市NO
2
和SO
2
污染状况,了解其时空分布特征及影响因素,2018年利用地基多轴差分吸收光谱仪(MAX-DOAS)在克拉玛依市进行固定点监测和车载移动环城监测获取NO
2
和SO
2
垂直柱浓度数据。研究表明:1)克拉玛依市NO
2
和SO
2
气体的日变化规律呈“U”型变化特征,NO
2
垂直柱浓度一般在9:00~11:00、17:00~19:00浓度值较高,11:00~17:00浓度值较低;SO
2
垂直柱浓度一般在11:00~13:00、15:00~17:00浓度值较高,13:00~15:00浓度值较低。即早晚高中午低。2)季节变化规律:NO
2
和SO
2
浓度皆表现为冬季>秋季>春季>夏季的变化特点。整体上同一时段内NO
2
垂直柱浓度比SO
2
垂直柱浓度值偏大。3)克拉玛依市NO
2
和SO
2
垂直柱浓度与风向风速密切相关,表现出风速越大污染范围越大。又由于特殊的地理条件和气象要素导致污染物的聚集,难以及时向外扩散。4)后向轨迹分析表明,克拉玛依市污染物主要源于外地。在外来区域传输影响中,克拉玛依市主要受到西北方向气团(占比为51.12%~75.83%)远距离传输和偏东方向气团(占比为14.0%~26.37%)近距离传输的影响。
In order to study the pollution status of NO
2
and SO
2
in Karamay city, Xinjiang, and understand their spatial and temporal distribution characteristics and influencing factors, multi-axis differential absorption spectrometer (MAX-DOAS) was used to conduct fixed-point monitoring and vehicle-mounted mobile round-town monitoring in Karamay City to obtain the concentration data of NO
2
and SO
2
vertical columns in 2018. The daily variation of NO
2
and SO
2
shows a U-shaped characteristic. The concentration of NO
2
vertical column is generally higher during 9:00 - 11:00, 17:00 - 19:00, and lower during 11:00 - 17:00. The vertical column concentration of SO
2
is generally higher during 11:00 - 13:00, 15:00 - 17:00, and lower during 13:00 - 15:00, namely high in the morning and evening low at noon. The seasonal variation of NO
2
and SO
2
shows a characteristics of winter > autumn > spring and summer. On the whole, the concentration of NO
2
vertical column is higher than that of SO
2
vertical column.The concentration of NO
2
vertical column and SO
2
vertical column is closely related to wind direction and wind speed, showing that the higher the wind speed is, the greater the pollution range is. And because of the special geographical conditions and meteorological factors, the pollutants are difficult to disperse in time.Backward trajectory analysis shows that the pollutants mainly come from other places. Among the influences of air mass transmission from the external regions, Karamay city is mainly affected by the long-distance transmission of air mass from the northwest (accounting for 51.12%~75.83%) and the short-distance transmission of air mass from the east (accounting for 14.0%~26.37%).
克拉玛依市NO2柱浓度SO2柱浓度
Karamay cityvertical column concentration of NO2vertical column concentration of SO2
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