气象与环境学报
氣象與環境學報
기상여배경학보
JOURNAL OF METEOROLOGY AND ENVIRONMENT
2015年
3期
29-34
,共6页
田心如%林惠娟%陈广昌%武艳%王伟丽
田心如%林惠娟%陳廣昌%武豔%王偉麗
전심여%림혜연%진엄창%무염%왕위려
霾%气象条件%污染物浓度
霾%氣象條件%汙染物濃度
매%기상조건%오염물농도
Haze%Meteorological conditions%Pollutant concentration
利用1961—2012年江苏省69个地面气象站观测资料和2012年苏州市大气气溶胶观测资料,在对霾日进行判识和筛选的基础上,分析江苏省霾日的时空变化特征及霾与气象条件和污染物的关系。结果表明:1961—2012年江苏省各站年总霾日数均呈上升趋势,85%的台站呈极显著上升趋势;江苏省年平均霾日数呈显著上升趋势,其中2011—2012年呈急剧上升趋势;1980年前霾日的空间分布差异不明显,1980年后,沿江和苏南地区为霾的高发区,东部沿海大部地区霾日较少。霾天气主要发生在冬季和春季,以12月和1月发生最多。降水少和风速小有利于霾天气的发生;除SO2外,PM10、PM2.5和NO2等污染物浓度随着霾等级的增加而增大,其中PM2.5浓度增大明显。
利用1961—2012年江囌省69箇地麵氣象站觀測資料和2012年囌州市大氣氣溶膠觀測資料,在對霾日進行判識和篩選的基礎上,分析江囌省霾日的時空變化特徵及霾與氣象條件和汙染物的關繫。結果錶明:1961—2012年江囌省各站年總霾日數均呈上升趨勢,85%的檯站呈極顯著上升趨勢;江囌省年平均霾日數呈顯著上升趨勢,其中2011—2012年呈急劇上升趨勢;1980年前霾日的空間分佈差異不明顯,1980年後,沿江和囌南地區為霾的高髮區,東部沿海大部地區霾日較少。霾天氣主要髮生在鼕季和春季,以12月和1月髮生最多。降水少和風速小有利于霾天氣的髮生;除SO2外,PM10、PM2.5和NO2等汙染物濃度隨著霾等級的增加而增大,其中PM2.5濃度增大明顯。
이용1961—2012년강소성69개지면기상참관측자료화2012년소주시대기기용효관측자료,재대매일진행판식화사선적기출상,분석강소성매일적시공변화특정급매여기상조건화오염물적관계。결과표명:1961—2012년강소성각참년총매일수균정상승추세,85%적태참정겁현저상승추세;강소성년평균매일수정현저상승추세,기중2011—2012년정급극상승추세;1980년전매일적공간분포차이불명현,1980년후,연강화소남지구위매적고발구,동부연해대부지구매일교소。매천기주요발생재동계화춘계,이12월화1월발생최다。강수소화풍속소유리우매천기적발생;제SO2외,PM10、PM2.5화NO2등오염물농도수착매등급적증가이증대,기중PM2.5농도증대명현。
Based on the observed meteorological data from 69 weather stations during 1961-2012 in Jiangsu prov-ince and atmospheric aerosol data of 2012 in Suzhou,haze days were identified and selected and then their tempo-ral and spatial characteristics and relationship with meteorological factors and pollutants were analyzed.The results show that the number of annual haze days in all stations is in an increasing trend from 1961 to 2012,and this trend is significant for 85% stations.Mean annual haze day in Jiangsu province is a significant upward trend,especially during 201 1-2012.The difference in spatial distribution of haze days is not obvious before 1980,while since 1980, the haze days have occurred mainly in the south of Jiangsu province and seldom in the eastern coastal area.Haze often happens in winter and spring,especially in December and January.Less precipitation and low wind speed are favorable to occurrence of haze weather.Except sulfur dioxide,concentrations of PM10 ,PM2.5 ,nitrogen dioxide and other pollutants increase with the increase of haze levels.Among them,PM2.5 concentration increases significantly.