基于OMI卫星数据结合车载DOAS技术修正的NOx排放通量估算

大气与环境光学学报 ›› 2017, Vol. 12 ›› Issue (1): 15-21.

• “先进环境监测技术与设备”专辑 • 上一篇下一篇

基于OMI卫星数据结合车载DOAS技术修正的NOx排放通量估算

张琼1,2，李昂1*，胡肇焜1,2，吴丰成1，谢品华1,3,4

（1 中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室，安徽合肥 230031；
2 中国科学技术大学研究生院，安徽合肥 230026；
3 中国科学院区域大气环境研究卓越创新中心，福建厦门 361021;
4 中国科学技术大学环境科学与光电技术学院，安徽合肥 230026）

收稿日期:2016-07-25 修回日期:2016-11-15 出版日期:2017-01-28 发布日期:2017-01-13
通讯作者: 李昂（1980-），男，博士，副研究员，主要从事光学环境监测及光学遥感技术方面的研究。 E-mail:angli@aiofm.ac.cn
作者简介:张琼（1992-），女，安徽蚌埠人，研究生，主要从事环境光学及卫星遥感方面的研究。
基金资助:
Supported by National High Technology Research and Development Program of China (国家863计划，2014AA06A508，2014AA06A511），National Natural Science Foundation of China（国家自然科学基金，41530644, 41405033），Anhui Natural Science Foundation（安徽省自然科学基金，1508085QD71）

Modification of Estimates of NOx Emissions Based on OMI Satellite Database and Mobile DOAS Technology

ZHANG Qiong1,2, LI Ang1*, HU Zhaokun1,2, WU Fengcheng1, XIE Pinhua1,3,4

（1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;
2 Graduate school, University of Science and Technology of China, Hefei 230026, China;
3 CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China;
4 School of Environmental Science and Optoeclectronic Technology, University of Science and Technology of China, Hefei 230026, China）

Received:2016-07-25 Revised:2016-11-15 Published:2017-01-28 Online:2017-01-13

摘要/Abstract

摘要：

与搭载在EOS AURA卫星上的OMI（Ozone Monitoring Instrument）探测器相比，由车载被动差分吸收光谱（differential optical absorption spectroscopy，DOAS）技术获得的NO2柱浓度数据空间分辨率更高，因而能够更准确的反映出NO2时空分布情况，利用OMI NO2 Level2数据产品重构2013年6月石家庄及周边区域的NO2柱浓度分布，结合风场数据分析NO2柱浓度沿风场方向的空间分布，同时，使用车载被动DOAS系统对西南通道即石家庄-保定-北京路段进行走航观测，获取车载DOAS NO2柱浓度分布数据，使用指数修正高斯（exponentially-modified Gaussian，EMG）拟合方式，分别拟合OMI NO2 数据和经过地基DOAS数据修正后的OMI NO2 数据得到NOx排放通量分别为195.8 mol/s、160.6 mol/s。经过地基DOAS数据修正的NOx排放量小于卫星估算值，可能是由于卫星的空间分辨率较低导致的。

关键词: OMI, 车载差分光学吸收光谱, NO2分布, NOx排放通量

Abstract:

Compared with the tropospheric NO2 column concentration measured by the Monitoring Instrument Ozone (OMI) detector mounted on the AURA EOS satellite, the mobile passive differential optical absorption spectroscopy (DOAS) has higher spatial resolution. It can better reflect the distribution of NO2 pollution in a region. Therefore the distribution of NO2 column concentration over Shijiazhuang was reconstructed using data from OMI database(June 2013), combined with the wind data, the variation of spatial and temporal patterns of the distribution of NO2 concentration under southwest wind in Shijiazhuang were obtained. At the same time, the mobile DOAS system was used to observe the distribution of NO2 concentration on the southwest transport channel (Shijiazhuang-Baoding-Beijing). Finally, the exponentially-modified Gaussian (EMG) method was used to estimate the NOx emission rate over Shijiazhuang in June 2013. The results shown that, the emission fluxes of OMI NOx and emission fluxes modified by mobile DOAS was about 195.8 mol/s and 160.6 mol/s, respectively. The reason why the latter is less than the former may be because the low spatial resolution of the satellite.

Key words: Monitoring Instrument Ozone, mobile DOAS, NO2 distributions, NOx emission flux

中图分类号:

X831

张琼李昂胡肇焜吴丰成谢品华. 基于OMI卫星数据结合车载DOAS技术修正的NOx排放通量估算[J]. 大气与环境光学学报, 2017, 12(1): 15-21.

ZHANG Qiong, LI Ang, HU Zhao-Kun, WU Feng-Cheng, XIE Pin-Hua. Modification of Estimates of NOx Emissions Based on OMI Satellite Database and Mobile DOAS Technology[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(1): 15-21.

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基于OMI卫星数据结合车载DOAS技术修正的NOx排放通量估算

Modification of Estimates of NOx Emissions Based on OMI Satellite Database and Mobile DOAS Technology

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