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Study of Tehran Air Pollutants Dispersion with CMAQ Modeling System

Hashemian Nezhad, Babak | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46559 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Arhami, Mohammad
  7. Abstract:
  8. Tehran air quality is facing a real crisis. Reports of pertinent organizations show air quality is deteriorating in recent years and unhealthy days are increasing. As a result, study and planning in order to change this trend and moving toward improving air quality is a necessity. On the other hand, in order to make proper decisions and choosing effective approaches considering cost-effective attribute and legal, temporal and budget restrictions, selecting the right tool is essential. Air quality models are the tools which in a cost saving manner and reasonable time can provide the required results for researchers, decision makers and legislators. An applicable model correspondent with urban and atmospheric attributes of Tehran can provide pollutants concentrations of each source in each local point and the effects of any control and reduction policy of these pollutants with adequate resolution. Here in this thesis, among modern modeling systems and considering features of them, CMAQ modeling system was chosen for study and evaluation. Alongside this modeling system, SMOKE emission processing system was studied and evaluated. Also, to provide the required geographical and meteorological inputs, WRF-ARW modeling system was chosen. The required models data for an appropriate domain on Tehran with high resolution and in different time periods, from global datasets and past studies in this area, was selected and processed. In the end, models outputs were analyzed with ground stations and results were discussed with statistical parameters and relevant figures
  9. Keywords:
  10. Tehran ; Nitrogen Oxides ; Carbon Monoxide Dispersion ; Air Quality ; Modeling ; Community Multiscale Air Quality Modeling System (CMAQ) ; Weather Research and Forecasting (WRF)Modeling System ; Sparse Matrix Operator Kernel Emissions (SMOKE)Modeling

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