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[1]叶绿萌,樊少芬,常 鸣,等.珠三角地区秋季臭氧生成敏感性时空变化模拟研究[J].南京大学学报(自然科学),2016,52(6):977.[doi:10.13232/j.cnki.jnju.2016.06.002]
 Ye Lümeng,Fan Shaofen,Chang Ming,et al.Spatial and temporal distribution of ozone sensitive district in Pearl River Delta region during autumn[J].Journal of Nanjing University(Natural Sciences),2016,52(6):977.[doi:10.13232/j.cnki.jnju.2016.06.002]
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珠三角地区秋季臭氧生成敏感性时空变化模拟研究()
     

《南京大学学报(自然科学)》[ISSN:0469-5097/CN:32-1169/N]

卷:
52
期数:
2016年第6期
页码:
977
栏目:
出版日期:
2016-12-01

文章信息/Info

Title:
Spatial and temporal distribution of ozone sensitive district in Pearl River Delta region during autumn
作者:
叶绿萌1樊少芬2常 鸣1司徒淑娉3王雪梅4*
1.中山大学环境科学与工程学院,广州,510275;2.广州市环境科学研究院,广州,510620;3.佛山市环境监测中心,佛山,528000;4.中山大学大气科学学院,广州,510275
Author(s):
Ye Lümeng1Fan Shaofen2Chang Ming1Situ Shuping3Wang Xuemei4*
1.School of Environmental Science and Engineering,Sun Yat­sen University,Guangzhou,510275,China;
2.Guangzhou Research Institute of Environmental Protection,Guangzhou,510620,China;
3.Foshan Municipal Environmental Monitoring Center Station,Foshan,528000,China
4.School of Atmospheric Sciences,Sun Yat­sen University,Guangzhou,510275,China
关键词:
珠三角地区臭 氧敏感区WRF/Chem
Keywords:
Pearl River Delta(PRD)ozonesensitive regimesWRF/Chem
分类号:
TP181
DOI:
10.13232/j.cnki.jnju.2016.06.002
文献标志码:
A
摘要:
应用大气化学在线耦合模式WRF/Chem模式,对发生在珠三角地区秋季臭氧重污染事件进行了模拟.通过敏感性分析,划分臭氧敏感性区域,并研究敏感性区域随时间变化规律与成因.研究发现:在一定的气象条件和污染物排放情况下,VOCs敏感区主要分布在珠三角中心城区及其下风向地区(例如:佛山、中山、江门、珠海、深圳、广州南部以及肇庆南部地区),而NOx敏感区分布在珠三角的上风向郊区(例如:广州北部、惠州).珠三角臭氧敏感区表现出明显的时间变化特征,上午11-12时相较下午14-15时,VOCs敏感区域范围减少,NOx敏感区域范围增加且增幅达51.4%,其变化原因与生物源VOCs排放增加、气团老化、大气稀释扩散增加有关.
Abstract:
Understanding the evolution of severe ozone pollution events is critical for managing public health issues.The Weather Research and Forecasting­Chemistry model(WRF/Chem)is used to study a severe ozone­pollution episode occurred in autumn 2009 over the Pearl River Delta(PRD).Through analyzing WRF/Chem sensitivity simulations,NOx and VOCs­sensitive regimes of ozone chemistry are discerned to assess the mechanisms controlling the time variation of sensitive regimes.The results show that,for given weather and pollution­emission conditions,the VOCs­sensitive regime is mainly located in the central PRD and in its downwind areas(i.e.,the southern Guangzhou,Foshan,Zhongshan,Zhuhai,Shenzhen,Dongguan,Jiangmen and Zhaoqing).The NOx­sensitive regime is located in the upwind areas(i.e.,northern Guangzhou and Huizhou).These sensitive regimes are characterized with significant diurnal variations,and some areas that are previously VOCs sensitive shifted to NOx­sensitive conditions from morning to afternoon by 51.4%.Such a shift can be attributed to the photochemical aging,increased vertical dilution,and increasing biogenic VOCs emission.

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相似文献/References:

备注/Memo

备注/Memo:
科技部公益性行业(气象)科研专项(GYHY201406031),国家杰出青年科学基金(41425020),国家科技部支撑项目(2014BAC21B02),NSFC-广东联合基金(第二期)超级计算科学应用研究专题,佛山市科学技术局公共服务与能力提升项目(2015AB004371),佛山市环境保护局项目“佛山市臭氧污染成因与对策分析和大气颗粒物输送通道研究”(GDJAFS2015046G)
收稿日期:2016-08-31
*通讯联系人,E­mail:eeswxm@mail.sysu.edu.cn
更新日期/Last Update: 2016-11-20