亞洲大氣污染物之長程輸送與衝擊研究-第四期；參與國際7SEAS計畫-東亞地區污染物排放量以及垂直混合作用的不確定性對台灣空氣品質模擬的影響;Uncertainties of Asia Emissions and Vertical Mixing on Taiwan$S Air Quality Simulation Using Cmaq-Ddm

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Title:	亞洲大氣污染物之長程輸送與衝擊研究-第四期；參與國際7SEAS計畫-東亞地區污染物排放量以及垂直混合作用的不確定性對台灣空氣品質模擬的影響;Uncertainties of Asia Emissions and Vertical Mixing on Taiwan$S Air Quality Simulation Using Cmaq-Ddm
Authors:	鄭芳怡
Contributors:	國立中央大學大氣科學系
Keywords:	大氣科學;環境科學
Date:	2012-12-01
Issue Date:	2014-03-17 11:24:10 (UTC+8)
Publisher:	行政院國家科學委員會
Abstract:	研究期間：10108~10207;The O3 problem in Taiwan is significant and can be either locally produced or long-range transported (LRT) from other locations in East and South East Asia. The accurate prediction of the air quality modeling in Taiwan is strongly reliant on the quality of meteorological and emission inputs data. The turbulence vertical diffusion process is tightly linked to the land surface processing, land-air energy exchanging, and turbulence mixing processes, that is also a key meteorological physical process redistributing the air pollutants in the planetary boundary layer (PBL). Though, the turbulence vertical diffusion processes is still uncertain for air quality modeling. In this study, one of the objectives is to evaluate the modeled diagnostic PBL height, and assess its significance on Taiwan’s air pollution modeling, as well as other PBL physical processes. The simulation result will be compared with the datasets collected during the Seven SouthEast Asian Studies (7-SEAS) experimental campaign, as well as several flux measurement datasets, to understand the current modeling limitation and research on the improvement of boundary layer parameterizations. Ultimately, to develop a mixing layer scheme that is suitable for air quality simulations. In addition to the meteorological doubts, the uncertainties due to the emission inputs data are even critical. The uncertainties are arising from the amounts of the reported emission inventory, particularly for the emission sources from outside the country such as East and South East Asia. To quantify the uncertainties of the emission inputs on Taiwan’s air quality simulation, we will apply the Decoupled Direct Method within Community Multiscale Air Quality (CMAQ-DDM) modeling to understand the uncertainties of the emission inputs on Taiwan’s air quality simulation problems. The objectives are to quantify and characterize the impacts of NOx and VOC emissions from different source regions on Taiwan’s air quality simulation. The study period targets the springtime season from 2007 to 2011 in correspondence to the 7-SEAS experiment. The Weather Research Forecasting (WRF) model and CMAQ will be utilized as a major meteorological and air quality modeling.
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Atmospheric Sciences] Research Project

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