基于OMI卫星与地面观测数据的广东省臭氧生成敏感性分析  

Sensitivity Analysis of Ozone Generation in Guangdong Province Based on OMI Satellite and Ground Observation Data

作　　者：梁艳妮 王兴会 亓淑旻 许建敏 刘润 LIANG Yan-ni;WANG Xing-hui;QI Shu-min;XU Jian-min;LIU Run(Institute for Environmental and Climate Research,Jinan University,Guangzhou 511443,China;Guangdong-Hong Kong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality,Guangzhou 511443,China)

机构地区：[1]暨南大学环境与气候研究院,广州511443 [2]粤港澳环境质量协同创新联合实验室,广州511443

出　　处：《环境科学》2024年第11期6248-6254,共7页Environmental Science

基　　金：广州市科技项目(202002020065)。

摘　　要：基于臭氧(O_(3))检测仪卫星遥感数据及再分析气象数据,分析了广东省2015~2020年对流层二氧化氮(NO_(2))和甲醛(HCHO)时空分布和变化趋势、O_(3)生成敏感性的变化特征其与气象参数的关系.结果表明,广东省2015~2020年对流层NO_(2)柱浓度呈现出以珠三角地区为高值中心向四周逐渐减少的分布特征,珠三角地区的下降趋势最为显著;HCHO柱浓度呈现出珠三角地区高,其他地区低的分布特征,大部分地区的HCHO柱浓度呈现下降趋势,但在空间分布上较为分散;大部分区域的FNR值呈现出上升的趋势,VOCs-NO_(x)协同控制区的范围逐渐减少,NO_(x)控制区的面积不断增加,至2020年,广东省VOCs控制区、VOCs-NO_(x)协同控制区和NO_(x)控制区的比例分别为0.5%、13.1%和86.4%;O_(3)生成敏感性指标FNR值呈现增加趋势,与2 m气温、相对湿度、地表向下短波辐射和边界层高度呈正相关关系,与10 m风速和海平面气压呈负相关关系,影响最大的3个气象因子为地表下行短波辐射(DSSR)、相对湿度和2 m气温.Based on Ozone(O_(3))Monitoring Instrument satellite remoting sensing data and reanalysis meteorological data,an analysis was conducted on the spatiotemporal distribution and trends of tropospheric nitrogen dioxide(NO_(2))and formaldehyde(HCHO)in Guangdong Province from 2015 to 2020.The study also examined the changing characteristics of O_(3) generation sensitivity in relation to meteorological parameters.The results indicated that during 2015-2020,the tropospheric NO_(2) column concentration in Guangdong Province exhibited a distribution pattern with the Pearl River Delta(PRD)Region as the high-value center gradually decreasing towards the surrounding areas,with the most substantial decline observed in the Pearl River Delta.The HCHO column concentration showed a pattern of higher values in the PRD and lower values in the other regions.While most areas exhibited a decreasing trend in HCHO column concentration,the spatial distribution was more dispersed compared to that of NO_(2).In most regions,the ratio of HCHO to NO_(2)(FNR)showed an increasing trend.The area under VOCs-NO_(x) synergistic control decreased,whereas the area under NO_(x) control increased.By 2020,the proportions of VOCs control area,VOCs-NO_(x) synergistic control area,and NO_(x) control area in Guangdong Province were 0.5%,13.1%,and 86.4%,respectively.The FNR value showed an increasing trend;a positive correlation with 2 m temperature,relative humidity,downward surface shortwave radiation,and boundary layer height;and a negative correlation with 10 m wind speed and sea level pressure.The three most influential meteorological factors were downward surface shortwave radiation(DSSR),relative humidity,and 2 m temperature,impacting the FNR value the most.

关 键 词：臭氧生成敏感性 气象 卫星遥感 臭氧生成敏感性指标(FNR) 广东省 

分 类 号：X515[环境科学与工程—环境工程]