基于EMI 观测的珠三角地区对流层NO2 柱浓度时空变化特征分析

大气与环境光学学报 ›› 2021, Vol. 16 ›› Issue (3): 197-206.

• “高分五号卫星大气数据反演”专辑 • 上一篇下一篇

基于EMI 观测的珠三角地区对流层NO2 柱浓度时空变化特征分析

王肖汉1, 徐翼洲1, 张成歆1∗, 吴跃2, 孙中平2, 刘诚1;3

1 中国科学技术大学精密机械与精密仪器系, 安徽合肥 230026; 2 生态环境部卫星环境应用中心, 北京 100094; 3 中国科学院合肥物质科学研究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

收稿日期:2020-10-28 修回日期:2021-02-02 出版日期:2021-05-28 发布日期:2021-05-28
通讯作者: E-mail: zcx2011@mail.ustc.edu.cn E-mail:zcx2011@mail.ustc.edu.cn
作者简介:王肖汉 (1999 - ), 安徽宿州人, 主要从事卫星遥感方面研究。 E-mail: wangxiaohan@mail.ustc.edu.cn
基金资助:
Supported by the National Earth Observation Data Center (国家对地观测科学数据中心开放基金项目, NODAOP2020013), China Postdoctoral Science Foundation (中国博士后科学基金, 2020TQ0320), the National Key Research and Development Plan (国家重点研发计划, 2017YFC0210002, 2017YFB0503900-4-2, 2018YFC0213104, 2016YFC0203302, 2017YFC0212800), National Natural Science Foundation of China (国家自然科学基金, 41720501, 51778596, 41977184), the Major Scientific and Technological Projects in Anhui Province (安徽省科技重大专项, 18030801111), Beautiful China Ecological Civilization Construction Science and Technology Project (美丽中国生态文明建设科技工程专项, XDA23020301), the National Key Project for Causes and Control of Heavy Air Project (国家大气重污染成因与治理攻关项目, DQGG0102, DQGG0205), the Major Projects of High Resolution Earth Observation Systems of National Science and Technology of China (国家高分辨率对地观测重大科技专项项目“环境保护遥感动态监测信息服务系统”, 二期, 05-Y30B01-9001-19/20-3)

Spatial-Temporal Variation of Tropospheric NO2 Concentration in Pearl River Delta Based on EMI Observations

#br# WANG Xiaohan1, XU Yizhou1, ZHANG Chengxin1∗, WU Yue2, SUN Zhongping2, LIU Cheng1;3

Received:2020-10-28 Revised:2021-02-02 Published:2021-05-28 Online:2021-05-28
Contact: Chengxin /ZHANG E-mail:zcx2011@mail.ustc.edu.cn

摘要/Abstract

摘要： 珠三角城市群作为我国最具发展活力的都市经济圈之一, 近年来经济发展势头迅猛, 但与此同时, 珠三角地区大气污染问题也引起了广泛关注。在众多大气污染监测手段中, 卫星遥感方法具有观测范围广、观测种类多、可长期连续观测、成本低等优点。 EMI (Environmental trace gases monitoring instrument) 是我国首台星载大气监测光谱仪, 于 2018 年 5 月 9 日搭载于高分五号 (GF-5) 卫星发射运行, 已广泛应用于中国和全球众多区域的大气污染物空间分布与时间变化监测, 对于我国卫星高光谱遥感反演算法的研发和大气污染防治具有重要意义。本文基于 EMI 遥感数据和中国科大的卫星遥感产品, 分析了珠三角地区 2019 年 1–8 月期间对流层 NO2 柱浓度时空变化特征。结果表明: (1) 在 2019 年 1–8 月期间, 珠三角地区对流层 NO2 柱浓度整体呈现“内凹型”特征, 表现为 1–6 月呈下降趋势, 7–8 月呈上升趋势; (2) 珠三角地区的主要 NO2 污染重心集中在佛山市中部, 以及珠江入海口沿海海岸, 在 1–8 月期间, NO2 污染源重心不断由佛山市中部向深圳及香港特区方向移动; (3) 珠三角地区对流层 NO2 柱浓度分布与城市的经济状况、产业结构、常住人口数量及机动车保有量具有一定的相关关系, 其中, 城市的整体经济状况与第二产业占比对于其对流层 NO2 柱浓度影响较大, 因此各地在大气污染防治中需注意当地经济状况的发展及产业结构的持续优化。

关键词: 大气光谱遥感, 大气痕量气体差分吸收光谱仪, 对流层 NO2 柱浓度, 珠三角地区

Abstract: As one of the most dynamic urban economic circles in China, the Pearl River Delta has witnessed rapid economic development in recent years. At the same time, the prevention and control of local air pollution has attracted wide attention. Among the many means of air pollution monitoring, satellite remote sensing method has the advantages of wide observation range, ability for observation of many kinds of pollutants, sustainable observation, low cost and so on. EMI (Environmental trace gases monitoring instrument) is the first Chinese spaceborne atmosphere monitoring spectrometer, which loaded on GF-5 satellite launched on May 9, 2018. It has been widely used in monitoring spatial distribution and temporal change of atmospheric pollutants regional and global areas, and is of great significance for the control of air pollution as well as the research and development of Chinese satellite hyper-spectral remote sensing inversion algorithm. Based on EMI remote sensing data and satellite remote sensing products from University of Science and Technology of China, the spatial and temporal variation characteristics of tropospheric NO2 column concentration over Pearl River Delta region from January to August 2019 are analyzed in this work. The results show that: (1) From January to August 2019, the concentration of tropospheric NO2 column over Pearl River Delta region presents a concave pattern as a whole, showing a decreasing trend from January to June, and an increasing trend from July to August. (2) The main NO2 pollution sources over Pearl River Delta are concentrated in the central part of FoShan city and the coastal areas along the Pearl River estuary. From January to August, the center of NO2 source gradually moved from central Foshan to Shenzhen and the Hong Kong. (3) There is a positive correlation between the concentration distribution of tropospheric NO2 column over Pearl River Delta region and the economic status, industrial structure, the number of permanent residents and the number of motor vehicles. Among them, the city’s overall economic status and the proportion of the secondary industry have a great influence on the concentration of tropospheric NO2 column. Therefore, attention should be paid to the development of local economy and the optimization of industrial structure in the prevention and control of air pollution

Key words: satellite spectrum remote sensing, environmental trace gases monitoring instrument, tropospheric NO2 concentration, Pearl River Delta

中图分类号:

X87
X511

王肖汉, 徐翼洲, 张成歆∗, 吴跃, 孙中平, 刘诚, . 基于EMI 观测的珠三角地区对流层NO2 柱浓度时空变化特征分析[J]. 大气与环境光学学报, 2021, 16(3): 197-206.

WANG Xiaohan, XU Yizhou, ZHANG Chengxin∗, WU Yue, SUN Zhongping, LIU Cheng, . Spatial-Temporal Variation of Tropospheric NO2 Concentration in Pearl River Delta Based on EMI Observations[J]. Journal of Atmospheric and Environmental Optics, 2021, 16(3): 197-206.

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基于EMI 观测的珠三角地区对流层NO2 柱浓度时空变化特征分析

Spatial-Temporal Variation of Tropospheric NO2 Concentration in Pearl River Delta Based on EMI Observations

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