ZHANG Xiao,AI Jie,JIANG Wan-ting,et al.Spatiotemporal Distribution Characteristics of Troposphere NO2 Columns in Chengdu Region during 2005-2015[J].Journal of Chengdu University of Information Technology,2016,(06):656-664.
成都地区2005～2015年对流层NO2 柱浓度趋势与时空分布
- Title:
- Spatiotemporal Distribution Characteristics of Troposphere NO2 Columns in Chengdu Region during 2005-2015
- 文章编号:
- 2096-1618(2016)06-0656-09
- 关键词:
- 大气化学; 卫星遥感; 二氧化氮对流层柱浓度; 成都地区; 时空分布
- Keywords:
- atmospheric chemistry; satellite remote sense; tropospheric NO2columns; Chengdu region; spatiotemporal distribution
- 分类号:
- X511
- 文献标志码:
- A
- 摘要:
- 根据臭氧观测仪数据,分析成都地区2005年1～12月NO2对流层柱浓度时空分布特征。结果表明,研究期间对流层NO2柱浓度年均值为10.31*1015 molec·cm-2,总体呈波动上升趋势,年上升率为0.42 molec·cm-2·yr-1,主城区西北部的上升趋势最明显。NO2柱浓度时间分布特征呈现:11月和12月最高,7月和8月最低。空间分布上,NO2柱浓度高值区中心位于城区及偏北区域; 山区最低; 农业地区可能受季节性的秸秆燃烧影响较大。
- Abstract:
- According to the remote sensing data obtained from Ozone Monitoring Instrumentsatellite, the study analyzed the spatiotemporal distribution of troposphere NO2 column and its variation from January 2005 to December 2015 in Chengdu region. It shows that the annual average of tropospheric NO2 columnswas 10.31*1015 molec·cm-2 during study period. Its rising rate in average was 0.42 molec·cm-2·yr-1, with the most significant trend in regions northwest of the urban area.It was observed that troposphericnitrogen dioxide columns reached their maximum in November and December, and minimum in July and August. As for spatial distribution, the highest concentration of NO2 column was observed in urban area and north of it and lowest in mountainous area,and the agriculture region was effected by biomass burning probably.
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备注/Memo
收稿日期:2016-09-06 基金项目:国家自然科学基金资助项目(41275139)