Modelling VOC source impacts on high ozone episode days observed at a mountain summit in Hong Kong under the influence of mountain-valley breezes

2013 ◽  
Vol 81 ◽  
pp. 166-176 ◽  
Author(s):  
S.H.M. Lam ◽  
S.M. Saunders ◽  
H. Guo ◽  
Z.H. Ling ◽  
F. Jiang ◽  
...  
Keyword(s):  
Hong Kong ◽  
Mountain Valley ◽  
Mountain Summit ◽  
High Ozone Episode ◽  
Ozone Episode

scholarly journals A Numerical Simulation of High Ozone Episode Using OZIPR in Busan

2007 ◽  
Vol 16 (8) ◽  
pp. 985-994
Author(s):  
Woo-Gon Do ◽  
Hwa-Woon Lee ◽  
Woo-Sik Jung
Keyword(s):  
Numerical Simulation ◽  
High Ozone Episode ◽  
Ozone Episode

A numerical study of an autumn high ozone episode over southwestern Taiwan

2007 ◽  
Vol 41 (17) ◽  
pp. 3684-3701 ◽  
Author(s):  
Chuan-Yao Lin ◽  
Zifa Wang ◽  
Charles C.-K. Chou ◽  
Chih-Chung Chang ◽  
Shaw C. Liu
Keyword(s):  
Numerical Study ◽  
Southwestern Taiwan ◽  
High Ozone Episode ◽  
Ozone Episode

Modeling of Regional High Ozone Episode Observed at Two Mountain Sites (Mt. Tai and Huang) in East China

2006 ◽  
Vol 55 (3) ◽  
pp. 253-272 ◽  
Author(s):  
Zifa Wang ◽  
Jie Li ◽  
Xiquan Wang ◽  
Pakpong Pochanart ◽  
Hajime Akimoto
Keyword(s):  
East China ◽  
High Ozone Episode ◽  
Ozone Episode

scholarly journals Influence of Isoprene Emissions on Ozone Concentrations in the Greater Busan Area during a High Ozone Episode in 2006

2010 ◽  
Vol 19 (7) ◽  
pp. 829-841 ◽  
Author(s):  
Yoo-Keun Kim ◽  
Young-Soon Jo ◽  
Sang-Keun Song ◽  
Yoon-Hee Kang ◽  
In-Bo Oh
Keyword(s):  
Ozone Concentrations ◽  
High Ozone Episode ◽  
Ozone Episode

scholarly journals Dynamics of the Typhoon Haitang Related High Ozone Episode over Hong Kong

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Xiaolin Wei ◽  
Ka-se Lam ◽  
Chunyan Cao ◽  
Hui Li ◽  
Jiajia He
Keyword(s):  
Hong Kong ◽  
Air Quality ◽  
Dynamic Process ◽  
Meteorological Conditions ◽  
Photochemical Reactions ◽  
Physical Factors ◽  
Photochemical Smog ◽  
Pearl River Delta Region ◽  
Local Circulation ◽  
Ozone Episode

It has been previously established that photochemical smog occurring in the Pearl River Delta Region (PRD) was associated with stagnant meteorological conditions. However, the photochemical smog (17 July to 20 July 2005) induced by typhoon Haitang was associated with moderate wind speed and nonstagnant meteorological conditions. The dynamic process of this ozone episode was studied using an integrated numerical model, that is, a mesoscale meteorological model and Community Multiscale Air Quality (CMAQ) model. Model performance has been evaluated using both ground-based meteorological and air quality observations. Analysis of simulated wind fields and ozone budget has been performed. This dynamic process is summarized into three physical factors. First, the westerly wind placed Hong Kong directly downwind of the PRD emissions. Second, the convergence of wind flow stimulated a vertical local circulation near the surface layer. This recirculation allowed primary and secondary pollutants to accumulate. Third, the conditions of high air temperature and low humidity resulted in active photochemical reactions. These combined effects resulted in the formation of high ozone in this episode.

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