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Fast spreading of surface ozone in both temporal and spatial scale in Pearl River Delta

Journal of Environmental Sciences 2024年第3期137卷 540-552页

作者： Tianhui Cao Haichao Wang Lei Li Xiao Lu Yiming Liu shaojia fan School of Atmospheric Sciences Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China

Surface ozone(O_(3))is a major air pollutant and draw increasing attention in the Pearl River Delta(PRD),***,we characterize the spatial-temporal variability of ozone based on a dataset obtained from 57 national monitoring sites during *** results show that:(1)the seasonal difference of ozone distribution in the inland and coastal areas was significant,which was largely affected by the wind pattern reversals related to the East Asian monsoon,and local ozone production and destruction;(2)the daily maximum 8hr average(MDA8 O_(3))showed an overall upward trend by 1.11 ppbv/*** the trends in the nine cities varied differently by ranging from-0.12 to 2.51 ppbv/*** hot spots of ozone were spreading to southwestern areas from the central areas since *** ozone is becoming a year-round air pollution problem with the pollution season extending to winter and spring in PRD region.(3)at the central and southwestern PRD cities,the percentage of exceedance days from the continuous type(defined as≥3 days)was ***,the ozone concentration of continuous type was much higher than that of scattered exceedance type(<3 days).In addition,although the occurrence of continuous type starts to decline since2017,the total number of exceedance days during the continuous type is *** results indicate that it is more difficult to eliminate the continuous exceedance than the scatter pollution days and highlight the great challenge in mitigation of O_(3)pollution in these cities.

关键词： Surface ozone pollution Ozone trend Spatial and temporal variability Pearl River Delta Pollution mitigation

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东南亚野火对南海北部空气质量的影响

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Science Bulletin 2024年第8期69卷 1011-1015页

作者：秦玉洁王海潮王一鸣卢骁唐海荣张建青李磊范绍佳 School of Atmospheric Sciences Sun Yat-sen UniversitySouthern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519000China Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere-Ocean System(Sun Yat-sen University)Ministry of EducationZhuhai 519000China Sansha Meteorological Bureau of Hainan Province Sansha 573199China

Wildfire smoke plays a crucial role in climate change,air quality,human health,and the *** the warming and drying of the climate,the scope,frequency,and intensity of global wildfire events are increasing rapidly[1,2].Southeast Asia,South America,Africa,and Australia are the major regions in which wildfires occur[3,4];Southeast Asia is the hotspot of wildfires and neighbors the South China Sea(SCS)[5].Therefore,the air quality and climate in the SCS can be affected by the transport of wildfire smoke in Southeast *** studies have focused on the transport pathways from Southeast Asia to the SCS,especially studies based on BASE-ASIA(Biomass-burning Aerosols in South-East Asia)and 7-SEAS(7-South-East Asian Studies)experiments[5,6].

关键词： climate warming East

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珠海地区海陆风对臭氧污染的影响

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环境科学学报 2024年第1期44卷 74-85页

作者：张亮林洁萍邵英贤黄盛君范绍佳魏婉沛董妍汝李文淑梁秀姬广东省珠海生态环境监测站珠海519000 壹点环境科技(广州)有限公司广州510220 中山大学大气科学学院珠海519000 珠海市公共气象服务中心珠海519000

近年来珠三角夏秋季大气臭氧污染愈发严重并受到广泛关注.每年9—10月珠三角会有多个城市出现臭氧连续超标,呈现污染时间长、污染范围广的特点,2022年情况尤为突出.利用2016—2022年珠海市气象观测数据统计了该地区的海陆风发生规律,结... 详细信息

近年来珠三角夏秋季大气臭氧污染愈发严重并受到广泛关注.每年9—10月珠三角会有多个城市出现臭氧连续超标,呈现污染时间长、污染范围广的特点,2022年情况尤为突出.利用2016—2022年珠海市气象观测数据统计了该地区的海陆风发生规律,结合内陆站点和沿海站点空气质量监测数据,分析了海陆风对臭氧的影响.结果表明:夜间陆风将内地高污染气团向沿海方向传输,使夜间珠海地区VOCs增加及一部分的污染气团吹至海面,第二日上午开始海风将前一日夜间高污染气团从海面吹回陆地,到下午海风气团才逐渐变的较为清洁.整体来看,海陆风影响时本地VOCs增加明显,上午臭氧的增长速度较无海陆风时更快.O_(x)原位生成速率平均值和最大小时生成速率平均值均高于无海陆风日.珠海海陆风日海风与陆风影响臭氧生成前十OFP物种基本一致,与珠三角其他城市来源相似.

关键词：海陆风影响臭氧(O_(3)) 生成速率珠海

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Enhancement of the polynomial functions response surface model for real-time analyzing ozone sensitivity

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Frontiers of Environmental Science & Engineering 2021年第2期15卷 155-168页

作者： Jiangbo Jin Yun Zhu Jicheng Jang Shuxiao Wang Jia Xing Pen-Chi Chiang shaojia fan Shicheng Long Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control College of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006China Southern Marine Science and Engineering Guangdong Laboratory Sun Yat-Sen UniversityZhuhai 519000China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Graduate Institute of Environmental Engineering Taiwan UniversityTaipei 10673China Carbon Cycle Research Center Taiwan UniversityTaipei 10672China

Quantification of the nonlinearities between ambient ozone(O3)and the emissions of nitrogen oxides(NOx)and volatile organic compound(VOC)is a prerequisite for an effective O3 control *** Enhanced polynomial functions Response Surface Model(Epf-RSM)with the capability to analyze O3-NOx-VOC sensitivities in real time was developed by integrating the hill-climbing adaptive method into the optimized Extended Response Surface Model(ERSM)*** Epf-RSM could single out the best suited polynomial function for each grid cell to quantify the responses of O3 concentrations to precursor emission *** comparisons between Epf-RSM and pf-ERSM(polynomial functions based ERSM)were performed using out-of-sample validation,together with comparisons of the spatial distribution and the Empirical Kinetic Modeling Approach *** comparison results showed that Epf-RSM effectively addressed the drawbacks of pf-ERSM with respect to overfitting in the margin areas and high biases in the transition *** O3 concentrations predicted by Epf-RSM agreed well with Community Multi-scale Air Quality simulation *** case study results in the Pearl River Delta and the north-western area of the Shandong province indicated that the O3 formations in the central areas of both the regions were more sensitive to anthropogenic VOC in January,April,and October,while more NOx-sensitive in July.

关键词： Response surface model Hill-climbing algorithm Ozone pollution Precursor emissions Control strategy

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Research Progress on Estimation of the Atmospheric Boundary Layer Height

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Journal of Meteorological Research 2020年第3期34卷 482-498页

作者： Hongsheng ZHANG Xiaoye ZHANG Qianhui LI Xuhui CAI shaojia fan Yu SONG Fei HU Huizheng CHE Jiannong QUAN Ling KANG Tong ZHU Laboratory for Climate and Ocean–Atmosphere Studies Department of Atmospheric and Oceanic SciencesSchool of PhysicsPeking UniversityBeijing 100871 State Key Laboratory of Severe Weather and Key Laboratory of Atmospheric Chemistry of CMA Chinese Academy of Meteorological SciencesChina Meteorological Administration(CMA)Beijing 100081 State Key Joint Laboratory of Environmental Simulation and Pollution Control Department of Environmental SciencePeking UniversityBeijing 100871 School of Atmospheric Sciences Sun Yat-sen UniversityGuangzhou 510275 State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 Institute of Urban Meteorology China Meteorological AdministrationBeijing 100081

Atmospheric boundary layer height(ABLH)is an important parameter used to depict characteristics of the planetary boundary layer(PBL)in the lower *** ABLH is strongly associated with the vertical distributions of heat,mass,and energy in the PBL,and it is a key quantity in numerical simulation of the PBL and plays an essential role in atmospheric environmental *** this paper,various definitions and methods for deriving and estimating the ABLH are summarized,from the perspectives of turbulent motion,PBL dynamics and thermodynamics,and distributions of various substances in the *** methods for determining the ABLH by means of direct observation and remote sensing retrieval are reviewed,and comparisons of the advantages and disadvantages of these methods are *** paper also summarizes the ABLH parameterization schemes,discusses current problems in the estimation of ABLH,and finally points out the directions for possible future breakthroughs in the ABLHrelated research and application.

关键词： atmospheric boundary layer height(ABLH) turbulent boundary layer aerosol accumulation layer remote sensing retrieval parameterization

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基于风廓线仪等资料的珠江三角洲污染气象条件研究

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环境科学学报 2015年第3期35卷 619-626页

作者：吴蒙吴兑范绍佳中山大学环境科学与工程学院大气科学系广州510275 中国气象局广州热带海洋气象研究所广州510080

利用珠江三角洲区域空气质量资料和珠海、南沙、增城的逐30 min风廓仪观测资料,以及清远探空站每天08时和20时的温度探空资料等,研究了2012年10月珠江三角洲出现的大范围持续性污染天气期间的大气边界层特征.结果表明:2012年10月珠江三... 详细信息

利用珠江三角洲区域空气质量资料和珠海、南沙、增城的逐30 min风廓仪观测资料,以及清远探空站每天08时和20时的温度探空资料等,研究了2012年10月珠江三角洲出现的大范围持续性污染天气期间的大气边界层特征.结果表明:2012年10月珠江三角洲出现的大范围持续性污染天气主要是受到弱冷空气南下和台风外围下沉气流天气形势的影响;在污染日,增城、南沙和珠海低层风速普遍小于3 m·s-1,300m高度以下风速甚至小于2 m·s-1,增城和珠海观测站的通风量普遍小于5000~6000 m2·s-1;非污染日的通风量则远远大于污染日;在近海的南沙站和珠海站,海陆风等局地环流的的作用不利于污染物的扩散,海风约出现于下午6时,最大影响高度约600~800 m;逆温层是导致重污染的天气的重要原因,清远探空站频繁出现逆温层,甚至出现多层低空逆温,污染日的逆温层平均厚度和平均强度都较大.

关键词：空气质量大气边界层风廓线仪珠江三角洲

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珠江三角洲风场对空气质量的影响

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中山大学学报（自然科学版） 2011年第6期50卷 130-134页

作者：张人文范绍佳中山大学环境科学与工程学院大气科学系广东广州510275 民航中南空管局气象中心广东广州510405

利用2006-2008年珠江三角洲11个地面气象站逐日14:00风场资料与粤港珠三角区域空气监控网11个监测子站的区域空气质量指数(RAQI)数据,分析研究风场对空气质量的影响。结果表明:珠江三角洲无论干湿季,北部、东部空气质量比南部、西部好,... 详细信息

利用2006-2008年珠江三角洲11个地面气象站逐日14:00风场资料与粤港珠三角区域空气监控网11个监测子站的区域空气质量指数(RAQI)数据,分析研究风场对空气质量的影响。结果表明:珠江三角洲无论干湿季,北部、东部空气质量比南部、西部好,中部是空气质量较差的地区。区域污染输送对珠江三角洲空气质量有重要影响:区域平均风速大于2.6 m/s时不会出现区域性空气污染,区域平均风速大于3.2 m/s时空气非常清洁;区域平均风速小于1.8 m/s时区域空气污染严重;风速介于1.8～2.6 m/s时空气质量变化比较复杂。

关键词：空气质量影响风场污染输送珠江三角洲

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自动气象站资料在海陆风等局地环流研究中的应用

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中山大学学报（自然科学版） 2013年第2期52卷 133-136页

作者：邱晓暖范绍佳中山大学环境科学与工程学院广东广州510275 广州市环境监测中心站广东广州510030

利用珠江口西侧广州市南沙区4个自动气象站2001-2008逐时风向风速资料,建立了自动气象站数据处理筛选方法和海陆风等局地环流的分离与判定技术。该数据处理筛选方法和局地环流分离与判定技术,可利用程序编程程序化。利用该方法对广州市... 详细信息

利用珠江口西侧广州市南沙区4个自动气象站2001-2008逐时风向风速资料,建立了自动气象站数据处理筛选方法和海陆风等局地环流的分离与判定技术。该数据处理筛选方法和局地环流分离与判定技术,可利用程序编程程序化。利用该方法对广州市南沙区自动气象站数据进行分析,得到海陆风的分析结果符合一般规律,符合当地海陆风的特征。

关键词：自动气象站数据处理局地环流分离与判定技术海陆风

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The regional nature of nitrate-dominant haze pollution during autumn over the Pearl River Delta area

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Atmospheric and Oceanic Science Letters 2020年第3期13卷 252-259页

作者： GUO Junchen ZHOU Shengzhen SUN Xi HUANG Minjuan DONG Hanying CHANG Ming fan Qi fan shaojia WANG Xuemei School of Atmospheric Sciences and Guangdong Province Key Laboratory for Climate Change and Natural Disaster StudiesSun Yat-sen UniversityGuangzhouChina Guangdong Provincial Field Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Sun Yat-sen UniversityGuangzhouChina Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiChina Guangdong-Hongkong-Macao Joint Laboratory of Collaborative Innovation for Environmental Quality Institute for Environmental and Climate ResearchJinan UniversityGuangzhouChina

China has experienced severe haze and visibility degradation problems in recent years because of rapid urbanization and *** this study,daily atmospheric fine-aerosol samples were concurrently collected at three sites over the Pearl River Delta(PRD)region during 1–29 October ***2.5 samples were analyzed for organic carbon and elemental carbon using a thermal/optical carbon *** water-soluble inorganic ions including F−,Cl−,NO3−,SO42−,Na+,NH4+,K+,Mg2+,and Ca2+were analyzed by ion *** results show that the temporal variations of PM2.5 concentration at the three sites were highly parallel,with particle pollution events simultaneously observed during 13–19 October(EP1)and 23–27 October(EP2),suggesting that pollution events in the PRD region are usually *** can most likely be attributed to the significant influences of synoptic conditions,which regionally facilitate or block diffusion of air *** chemical compositions of PM2.5 at the three sites were also found to be similar,dominated by organics and *** results indicate that accumulation of traffic emissions seems to play important roles in particle pollution for the PRD region,leading in this case to elevated nitrate contributions during both EP1 and EP2 at the three ***,the authors found that locally emitted aerosols from biomass burning only markedly influenced the air condition at one site,Nanhai,during EP1,while regionally transported biomass burning aerosols from eastern and northern Guangdong Province influenced all three sampling sites when the PRD was dominated by polluted air from these directions during EP2.

关键词： HAZE chemical components nitrate biomass burning pearl river delta region

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Atmosphere Environment Science and Technology Development

Atmosphere Environment Science and Technology Development

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作者： Yu Xuezeng Zhang Yuanhang Zhu Tong fan shaojia Wu Zhongbiao

Atmosphere environment science and technology discipline is a new branch of science of multidisciplinary crossed. According to the discipline classification standard of our country at present, the report mainly discus...

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