The purpose of this project is to maintain forecasting systems to facilitate daily forecast of air quality over the Taiwan area. The main works include: Maintain and operate the numerical forecasting model, the China dust dynamic numerical model (TAQM/KOSA；WRFDUST), local dust dynamic model (TAQM/TWKOSA), Taiwan Air Quality Model (TAQM), Community Multi-scale Air Quality (CMAQ) Model and mesoscale numerical weather prediction system (MM5 and WRF) included. Analyze the characteristic of atmospheric factors, ozone and PM2.5 between the model simulated results, site monitoring data and MODIS satellite retrieval data. The results will feedback to as the references to modify the relative dynamic numerical model in the future. In the part of seriously polluted events analysis, two cases focusing on high level haze events were completed. For the reason of dust from riverside, using statistical analysis to figure out the correlation among the factors of environment, weather and river. Provide special-duty manpower to organize, integrate all of the information to offer the referral for the EPA air quality pre-warning decision and supporting the organization learning of EPA. Project coordinate director join the Mainland China dust event forecasting examining meeting and provide the expert opinion to EPA. The main modified of operation models are to upgrade the CMAQ V4.6 to V4.7, using WRF instead of MM5 for air quality and local dust models and provide the WRF2MM5 conversion program for the TAQM/TWKOSA and ultraviolet ray forecasting project. Increasing the WRFDUST model to joined as one member of the operation models. Air quality auxiliary forecast system is modified to increase the function of forecasting the PM2.5 from 1st Oct. 2014.

air-quality forecast;dynamic numerical model;Mainland China and local mineral dust