Emulation and Sensitivity Analysis of the Community Multiscale Air Quality Model for a UK Ozone Pollution Episode

Urbanization significantly influences meteorological conditions and air quality. Statistically, air pollution in the megacity of Shanghai usually occurs with cold weather fronts. An air pollution episode during a cold front was simulated using weather research and forecasting and the Community Multi-scale Air Quality model system. In this study, we used two urban schemes, a simple bulk scheme (denoted BULK) and the single-layer urban canopy model (SLUCM), to check the effects of urban parameterization. Our results showed that SLUCM better predicted the arrival time and cooling process of the cold front and more realistically simulated the moving process of the cold front. The improvement in the temperature and relative humidity simulation achieved using SLUCM was more effective under higher urbanization levels, whereas the wind speed simulation was better in rural areas. The simulated concentrations at sites with high urbanization were obviously improved by urban parameterization. The barrier role of the urban canopy during a cold front was better represented and was shown to cause a wider polluted area and higher pollutant concentration using SLUCM than with BULK. Overall, accurate meteorological simulations in the atmospheric boundary layer using SLUCM are expected to provide good prediction of urban air quality.

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Iterative Inverse Modeling and Direct Sensitivity Analysis of a Photochemical Air Quality Model

Environmental Science & Technology ◽

10.1021/es991040+ ◽

2000 ◽

Vol 34 (23) ◽

pp. 4974-4981 ◽

Cited By ~ 24

Author(s):

Alberto Mendoza-Dominguez ◽

Armistead G. Russell

Keyword(s):

Sensitivity Analysis ◽

Air Quality ◽

Inverse Modeling ◽

Air Quality Model ◽

Quality Model ◽

Direct Sensitivity

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Sensitivity Analysis of Urban Photochemical Smog by Using a Reduced Version of an Air Quality Model

Air Pollution Modeling and Its Application XIII ◽

10.1007/978-1-4615-4153-0_38 ◽

2000 ◽

pp. 373-381

Author(s):

Josep Calbó

Keyword(s):

Sensitivity Analysis ◽

Air Quality ◽

Photochemical Smog ◽

Air Quality Model ◽

Quality Model

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A two-dimensional air quality model in an urban street canyon: evaluation and sensitivity analysis

Atmospheric Environment ◽

10.1016/s1352-2310(99)00333-7 ◽

2000 ◽

Vol 34 (5) ◽

pp. 689-698 ◽

Cited By ~ 74

Author(s):

Hong Huang ◽

Yoshiaki Akutsu ◽

Mitsuru Arai ◽

Masamitsu Tamura

Keyword(s):

Sensitivity Analysis ◽

Air Quality ◽

Street Canyon ◽

Two Dimensional ◽

Urban Street Canyon ◽

Air Quality Model ◽

Quality Model ◽

Urban Street

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Impact of Long Transport on Taiwan’s Ozone Air Quality from East Asia

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.692.13 ◽

2014 ◽

Vol 692 ◽

pp. 13-21 ◽

Cited By ~ 1

Author(s):

Chien Hung Chen ◽

Ken Hui Chang ◽

Tu Fu Chen

Keyword(s):

Air Quality ◽

East Asia ◽

Ozone Pollution ◽

Air Quality Model ◽

Quality Model ◽

Case Scenario ◽

Worst Case ◽

Transboundary Transport ◽

Pollution Area

To clarify the influence of air pollutants emitted from East Asia on the ozone air quality in Taiwan, this study performs a long-term simulation result for 4 months using Taiwan Air Quality Model. Influence from the current (2007) and future (2020) East Asian emissions on the ozone concentration in Taiwan were simulated. The date ranges simulated were February, May, August, and October of 2007, representing the seasons of winter, spring, summer, and autumn. Influence from transboundary transport on Taiwan was assessed based on simulations of these 4 months. The influence of transboundary transport on the monthly average of daily peak ozone concentrations in Taiwan is 15.5 ppb. Worst case scenarios in 2020 will contribute an additional 3.7 ppb. If the size of ozone pollution area (≧120 ppb) is considered, transboundary transport contributed to 72 % of the polluted area in 2007; the ozone pollution area in the worst case scenario in 2020 will further increase by 47 % from 2007 levels.

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