The influence of lightning activity on NOx and O3 in the Pearl River Delta region

被引：0
|
作者：
Zhang, Xue [1 ,2 ]
Deng, Tao [2 ]
Wu, Dui [1 ,2 ]
Chen, Luwen [2 ]
He, Guowen [2 ,3 ]
Yang, Honglong [4 ]
Zou, Yu [2 ]
Pei, Chenglei [5 ]
Yue, Dingli [6 ]
Tao, Liping [1 ,2 ]
Ouyang, Shanshan [2 ,7 ]
Wang, Qing [1 ,2 ]
Zhang, Zebiao [1 ,2 ]
机构：
[1] Jinan Univ, Inst Mass Spectrometry & Atmospher Environm, Guangzhou 511443, Peoples R China
[2] China Meteorol Adm, Inst Trop & Marine Meteorol, Guangdong Prov Key Lab Reg Numer Weather Predict, Guangzhou 510640, Peoples R China
[3] Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China
[4] Shenzhen Natl Climate Observ, Meteorol Bur Shenzhen Municipal, Shenzhen 518040, Peoples R China
[5] Guangzhou Environm Monitoring Ctr Stn, Guangzhou 511443, Peoples R China
[6] Guangdong Prov Environm Monitoring Ctr, Guangzhou 511443, Peoples R China
[7] Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2023年 / 902卷
关键词：
Lightning; Nitrogen oxides; Ozone; Vertical observation; OZONE; CONVECTION; TROPOSPHERE; AEROSOLS; IMPACTS; BUDGET; O-3; US;
D O I：
10.1016/j.scitotenv.2023.166001
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Extremely high-temperature lightning generates NOx by electrolyzing nitrogen and oxygen molecules, regulating ozone concentration. The Pearl River Delta (PRD) is located in the world's high-value area of lightning density, and lightning-generated NOx (LNOx) cannot be ignored. Using the flash data from Guangdong-Hong Kong-Macao Lightning Location System and multi-site atmospheric composition data, we estimate the NOx variations in lightning activity and its impact on O3 across the PRD region. The cloud-to-groud (CG) frequency from 2013 to 2021 shows a decreasing trend driven by urban regions. We observe that the lightning density is steadily decreasing from the south-central part of Guangzhou City to the surrounding area.
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页数：15
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