EPA-98-L105-02-202

098

1,700 千元

2009/03/17

2009/12/31

柳中明

監資處

吳國榮

臺灣大學全球變遷研究中心

環境資訊系統

紫外線指數、監測與預報、分析

UV-Index, calibration and forecasting, analysis

吳明進

李惠玲

02-33664477#114

leehl@ntu.edu.tw

本計畫以提高國內紫外線預報與監測之正確性為任務，本年度專案計畫目標為：一、紫外線預報準確率達75% (含) 以上。二、維護紫外線監測數值之正確性。三、擴充紫外線預報輔助系統資料庫。四、建立完整的儀器品保、品管紀錄。為達成任務及專案目標，將分預報與監測分析、數值模擬發展、儀器校驗三部份進行專案要求之各項工作。 目前所使用之紫外線預報系統為2000年完成半自動化作業之第四代預報系統，能夠每日提供所有監測資料進行主觀修正，並能運用中央氣象局的七日定性天氣預報進行連續七日的紫外線指數預報。預報成效分析項目包括：日成效分析、週成效分析、月成效分析及季節成效分析等；設置預報分析網頁，將所有的分析成果整理在一起，提供作業人員隨時查閱；也設置監測分析網頁，提供等值線圖、逐日變化、逐時變化、逐月分析及空間分佈圖等資料，並可連結紫外線預報輔助系統資料庫，提供歷年之數據及年報。 數值模擬發展部份，延續上年度計畫成果，本年度將使用UVSPEC模式，將溫度、氣壓、地形、雲量、天頂角、臭氧濃度等各式氣象條件資料輸入後，計算紫外線輻射量，再轉換為指數，以與實際監測結果做比較。本年度預計在模式系統確立後將其自動化。 紫外線輻射計校驗的部份，依校驗實驗室之品質管制要求，進行輻射計之校驗：於5~8月期間，進行各測站儀器的平行校驗、9~11月進行測站儀器校正，並建立完整的品保記錄，以確保儀器監測準確性及監測資料的品質。

紫外線指數、監測與預報、分析

EPA98-L105-02-202.pdf

15MB

2010/2/1 上午 12:00:00

The main task of this project is to enhance the UV forecast and monitoring in Taiwan, the purpose of this project is: (1) to maintain a UV forecasting accuracy up to 75% or above; (2) to maintain the correctness of UV monitoring values; (3) to expand the database of UV Forecast and Monitoring; (4) to set up the complete record of UV instruments calibration. And, the main works of UV forecasting and monitoring include data analysis, model development, and instrument calibration. The UV forecasting system can provide the daily monitoring data for the subjective as amended, and the use of the seven-day weather forecasts (proving by the Central Weather Bureau) for seven consecutive days as the UVI forecasts. Prediction analysis of the effectiveness include: daily, weekly and Seasonal analysis; set the web pages of forecasting, organizing all of the analysis results together, to provide the operating personnel are readily available; and set up monitoring web pages, to provide contour map, daily and hourly changes of UVI, monthly analysis and spatial distribution of map, and hyperlinks to UV Forecast System database, providing historical data and annual reports. For model development, base on the annual results, this year will use UVSPEC, input weather conditions, such as the temperature, pressure, terrain, cloud, zenith angle, ozone concentration, and calculating amount of ultraviolet radiation, converting to index and then to make the monitoring results with the actual comparison. This year is expected to establish the model system after automation. According to the quality control requirements of UV Instrument Calibration Laboratory (UVICL), we will make on-site radiometer-parallel-comparisons during May to August, and do the radiometer calibration and related works during September to November, and set up the complete record f UV instruments calibration, to ensure the accuracy of monitoring equipment and monitoring data quality.

UV-Index, calibration and forecasting, analysis