基于GEE云平台和Sentinel-5P卫星数据的苏皖鲁豫地区臭氧前体物污染特征及臭氧生成敏感性分析

孔凡萍; 张英磊; 韩胜男; 刘亚萍; 刘永伟

doi:10.13205/j.hjgc.202504003

基于GEE云平台和Sentinel-5P卫星数据的苏皖鲁豫地区臭氧前体物污染特征及臭氧生成敏感性分析

doi: 10.13205/j.hjgc.202504003

北京首创大气环境科技股份有限公司,北京 100176

详细信息

作者简介:
孔凡萍（1989-），女，博士研究生，主要研究方向为大气环境和水环境遥感监测技术及应用。kongfanping@aircapital.cn

通讯作者:
张英磊（1989-），男，技术总工，主要研究方向为大气污染综合防治。zhangyinglei@aircapital.cn

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出版历程
- 收稿日期: 2024-03-29
- 录用日期: 2024-05-23
- 修回日期: 2024-05-14
- 刊出日期: 2025-04-01

Analysis of ozone precursor pollution characteristics and ozone formation sensitivity in the Su-Wan-Lu-Yu Region based on GEE cloud platform and Sentinel-5P satellite data

Beijing Capital Air Environmental Science & Technology Co. Ltd., Beijing 100176, China

摘要

摘要: 基于Google Earth Engine（GEE）云平台和Sentinel-5P卫星遥感数据，采用FNR（formaldehyde to nitrogen dioxide ratio）指示剂法，系统分析了2019—2023年苏皖鲁豫地区臭氧（O₃）前体物及其生成敏感性的时空变化特征。研究发现，对流层甲醛（HCHO）柱浓度表现出明显的夏秋季高、冬春季低的季节变化特征，其中夏季最高，总体呈现波动上升趋势，尤其是在河南、安徽和山东三省交界地区增加较为明显；而对流层二氧化氮（NO₂）柱浓度则表现出秋冬季高、春夏季低的特征，冬季最高，总体呈波动下降趋势，表明各省会及其周边城市氮氧化物（NO_x ）减排成效显著。O₃生成敏感性以协同控制区为主，其次是挥发性有机化合物（VOCs）控制区，主要分布在郑州、济南、徐州、南京、合肥等中心城市及其周边区域，面积呈现增加趋势；NO_x 控制区面积最小，主要分布在河南和安徽省的西部、南部非中心城市区域，总体呈现下降趋势。研究可为了解苏皖鲁豫地区O₃前体物时空分布特征提供科学依据，对环境管理和污染防治政策的制定提供参考。
- GEE /
- Sentinel-5P /
- 卫星遥感 /
- 臭氧前体物 /
- 臭氧生成敏感性 /
- 时空特征
Abstract: In recent years， China's air quality has continued to improve， but the intensity and frequency of regional ozone （O₃） pollution processes shows an increasing trend. It is of great significance to study the spatiotemporal variations of O₃ precursors and their formation sensitivity in Jiangsu， Anhui， Shandong and Henan （Su-Wan-Lu-Yu Region）. This study utilized the Google Earth Engine （GEE） cloud platform and Sentinel-5P satellite remote sensing data to systematically analyze the spatiotemporal variations of ozone （O₃） precursors and their sensitivity to O₃ formation in the Su-Wan-Lu-Yu region from 2019 to 2023. The study found that the concentration of tropospheric formaldehyde （HCHO） column exhibited a distinct seasonal variation pattern of higher in summer and autumn， and lower in winter and spring， with the highest value in summer and an overall fluctuating increasing trend， particularly pronounced at the intersection of Henan， Anhui， and Shandong provinces. Conversely， the concentration of tropospheric nitrogen dioxide （NO₂） column showed the characteristics of higher in autumn and winter， and lower in spring and summer， with the highest value in winter peaks and an overall fluctuating decreasing trend， indicating a significant reduction in nitrogen oxides （NO_x ） emissions reduction effects in provincial capitals and surrounding cities. The O₃ formation sensitivity to precursor emissions was predominantly influenced by synergistic control zones， followed by volatile organic compounds （VOCs） control areas， predominantly distributed around central cities such as Zhengzhou， Jinan， Xuzhou， Nanjing and Hefei， showing an increasing trend in coverage. The NO_x control areas had the smallest coverage， mainly located in the western and southern non-central urban areas of Henan and Anhui provinces， showing an overall decreasing trend. This study provides scientific evidence for understanding the spatiotemporal distribution characteristics of O₃ precursors in the Su-Wan-Lu-Yu region， but also provides a reference for the formulation of environmental management and pollution control policies.
- GEE /
- Sentinel-5P /
- satellite remote sensing /
- ozone precursors /
- ozone formation sensitivity /
- spatiotemporal characteristics

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1 研究区范围及地形信息示意

1. Schematic diagram of the scope and topographical information of the study area

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2 2018年12月—2023年11月对流层HCHO和NO₂柱浓度月均变化趋势

2. Trends in tropospheric HCHO and NO₂ column concentration from December 2018 to November 2023

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3 2019—2023年对流层HCHO和NO₂柱浓度多年季节平均空间分布

from 2019 to 2023

3. Multi-year seasonal average spatial distribution maps of tropospheric HCHO and NO₂ column concentrations

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4 2019~2023年对流层HCHO和NO₂柱浓度年均空间分布

4. Annual average spatial distribution of tropospheric HCHO and NO₂ column concentrations from 2019 to 2023

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5 2018年12月—2023年11月对流层HCHO和NO₂柱浓度变化趋势

5. Trends of tropospheric HCHO and NO₂ column concentrations from December 2018 to November 2023

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6 2019—2023年O₃污染高发时间段（4—10月）FNR空间分布

6. Spatial distribution of FNR during high ozone pollution periods （April to October） from 2019 to 2023

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7 2019—2023年苏皖鲁豫地区O₃生成控制区面积占比变化

7. The variations of proportion classified by ozone sensitivity control zones in the Su-Wan-Lu-Yu region

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