气象科技进展
氣象科技進展
기상과기진전
Advances in Meteorological Science and Technology
2013年
6期
58-61
,共4页
陈宫燕%德吉白玛%红梅%旺杰%旦增%宋燕
陳宮燕%德吉白瑪%紅梅%旺傑%旦增%宋燕
진궁연%덕길백마%홍매%왕걸%단증%송연
空气质量动态预报%多元线性回归模型%污染物浓度
空氣質量動態預報%多元線性迴歸模型%汙染物濃度
공기질량동태예보%다원선성회귀모형%오염물농도
air quality prediction%multiple linear regression model%pollutant concentration
空气污染状况不仅与污染源排放有关,也与气温、降水等气象要素存在密切联系。建立区域气象资料与空气质量的关系,对研究空气质量及其变化具有重要的研究意义。由于空气污染与气象条件之间并非线性关系,将前20d的气象观测资料和实际的大气污染物浓度作为输入参数,动态建立每天的多元线性回归方程,代入预报气象数据求取SO2、NO2、PM10的预测值和空气污染指数(API)值。初步试报表明,以20d为时间窗进行滑动预报,充分考虑了空气污染与气象条件之间的复杂动态关系,克服了传统静态空气质量预报方法的缺点,能更高精度地预报林芝地区的空气质量,具有一定的应用和推广价值。
空氣汙染狀況不僅與汙染源排放有關,也與氣溫、降水等氣象要素存在密切聯繫。建立區域氣象資料與空氣質量的關繫,對研究空氣質量及其變化具有重要的研究意義。由于空氣汙染與氣象條件之間併非線性關繫,將前20d的氣象觀測資料和實際的大氣汙染物濃度作為輸入參數,動態建立每天的多元線性迴歸方程,代入預報氣象數據求取SO2、NO2、PM10的預測值和空氣汙染指數(API)值。初步試報錶明,以20d為時間窗進行滑動預報,充分攷慮瞭空氣汙染與氣象條件之間的複雜動態關繫,剋服瞭傳統靜態空氣質量預報方法的缺點,能更高精度地預報林芝地區的空氣質量,具有一定的應用和推廣價值。
공기오염상황불부여오염원배방유관,야여기온、강수등기상요소존재밀절련계。건립구역기상자료여공기질량적관계,대연구공기질량급기변화구유중요적연구의의。유우공기오염여기상조건지간병비선성관계,장전20d적기상관측자료화실제적대기오염물농도작위수입삼수,동태건립매천적다원선성회귀방정,대입예보기상수거구취SO2、NO2、PM10적예측치화공기오염지수(API)치。초보시보표명,이20d위시간창진행활동예보,충분고필료공기오염여기상조건지간적복잡동태관계,극복료전통정태공기질량예보방법적결점,능경고정도지예보림지지구적공기질량,구유일정적응용화추엄개치。
Air pollution is not only associated with emissions of pollutant sources, but also has close links with meteorological factors such as temperature and precipitation. Establishment of the relationship between regional meteorological data and air quality is of great importance of the study of air quality and its changes. Because of the non-linear relationship between air pollution and meteorological conditions, the meteorological data and the actual concentration of air pollutants 20 days before as an input parameter dynamically created the daily multiple linear regression equation, then substituted the forecast meteorological data with the obtained equation to solve the predictive values and air pollution index (API) values of SO2, NO2, and PM10. The preliminary test prediction demonstrated that the sliding forecast method of 20 days as a time window could more accurately forecast the air quality of the Nyingchi and had certain application and promotion values. By using this method, meteorologists took adequately into account the complex and dynamic relationship between air pollution and meteorological conditions, thus overcoming the shortcomings of the traditional static air quality forecasting method.