CAJ | 학술논문

利用兰州市2003～2004年采暖期前后,大气气溶胶散射系数和光学厚度（AOD）观测资料,结合同期的环境质量常规监测资料,分析了该地区大气气溶胶性质变化特征及其与空气污染的关系。结果表明：兰州市总散射系数和后向散射系数采暖期具有明显的3峰变化,非采暖期呈双峰变化。采暖期和非采暖期绿光通道总散射系数最大值与最小值之比分别为1.66和3.51;采暖期光学厚度远大于非采暖期,光学厚度和总散射系数具有较好的相关性,相关系数为0.483;气溶胶的后向散射比日间变化随季节不同而改变;AOD与空气污染指数（API）、可吸入颗粒物（PM10）的变化在大多数情况下具有很好的相关性,AOD与PM10变化趋势基本相同,但其浓度值采暖期要高于非采暖期,而且两者之间的比值采暖期要大于非采暖期。
이용란주시2003～2004년채난기전후,대기기용효산사계수화광학후도（AOD）관측자료,결합동기적배경질량상규감측자료,분석료해지구대기기용효성질변화특정급기여공기오염적관계。결과표명：란주시총산사계수화후향산사계수채난기구유명현적3봉변화,비채난기정쌍봉변화。채난기화비채난기록광통도총산사계수최대치여최소치지비분별위1.66화3.51;채난기광학후도원대우비채난기,광학후도화총산사계수구유교호적상관성,상관계수위0.483;기용효적후향산사비일간변화수계절불동이개변;AOD여공기오염지수（API）、가흡입과립물（PM10）적변화재대다수정황하구유흔호적상관성,AOD여PM10변화추세기본상동,단기농도치채난기요고우비채난기,이차량자지간적비치채난기요대우비채난기。
According to the observation data of aerosol scattering coefficient and aerosol optical depth （AOD） during and after the heating period over Lanzhou and combined with the routine monitoring data of the environmental quality, this paper made a comparative analysis about the variation features of aerosol and its relationship with air pollution. The results show that the total scattering coefficient and the backscattering coefficient have three peaks during heating period, while two peaks appeared during the non - heating period. The ratio of the maximum and minimum value of the total scattering coefficient during heating and non - heating period is 1.66 and 3. 51, respectively, and the aerosol optical depth during heating period was bigger than that during the non - heating period. The correlation coefficient between AOD and the total scattering coefficient is 0. 483. The daily variation of the hemispheric backscattering fraction changes in different seasons. There was a good correlation among AOD, Air Pollution Index（API） and PMl0 in most cases. AOD and PM10 concentration during heating period were higher than that in non -heating period. However, during heating period AOD presented a higher value and PM10 concentration was lower value, but during non -heating period, they were very close.