CAJ | 학술논문

为了建立京津冀地区冬季近地面细颗粒物浓度监测方法的模型，利用气象模式资料对2013年1-3月MODIS的AOD二级深蓝算法产品进行湿度和垂直订正，与同期观测的地面细颗粒物PM2.5资料进行相关分析。结果表明：AQUA的MODIS深蓝算法AOD产品更适用于建立冬季AOD-PM2.5遥感监测模型，其R2为0.33；以气象模式资料中边界层高度代替气溶胶标高对MODIS的AOD进行垂直订正，并结合IMPROVE观测的气溶胶吸湿增长特征构建分区湿度订正方法，可以提高AOD-PM2.5模型结果的精度，建立较理想的京津冀地区冬季遥感反演综合模型，模型模拟结果与地面监测结果R2达0.50以上。根据建立的模型计算了2013年1-3月京津冀地区PM2.5月平均浓度，京津冀地区1月PM2.5浓度较高，南部大部分地区空气质量已达到重度污染水平。
위료건립경진기지구동계근지면세과립물농도감측방법적모형，이용기상모식자료대2013년1-3월MODIS적AOD이급심람산법산품진행습도화수직정정，여동기관측적지면세과립물PM2.5자료진행상관분석。결과표명：AQUA적MODIS심람산법AOD산품경괄용우건입동계AOD-PM2.5요감감측모형，기R2위0.33；이기상모식자료중변계층고도대체기용효표고대MODIS적AOD진행수직정정，병결합IMPROVE관측적기용효흡습증장특정구건분구습도정정방법，가이제고AOD-PM2.5모형결과적정도，건립교이상적경진기지구동계요감반연종합모형，모형모의결과여지면감측결과R2체0.50이상。근거건립적모형계산료2013년1-3월경진기지구PM2.5월평균농도，경진기지구1월PM2.5농도교고，남부대부분지구공기질량이체도중도오염수평。
Base on meteorological data from a numerical weather prediction model during January to March of 2013,MODIS Deep Blue AOD products were corrected with respect to relative humidity(RH)and vertical heights, and their correlation relationships with ground PM2.5 concentration were analyzed in order to establish a surface fine particulate concentration monitoring model in Jing-Jin-Ji regions.The results indicate that the Aqua MODIS DB algorithm AOD products are more suitable for establishing an AOD-PM2.5 linear correlative model in winter, and the R2 reaches 0.33 .Height of planetary boundary layer and RH extracted from the meteorological model are used to substitute for vertical correction factor.Besides,according to the aerosol hygroscopic characteristic from IMPROVE,relative humidity correction is developed to estimate surface PM2.5 concentration in different RH ran-ges,which could improve precision of AOD-PM2.5 model.Thus,an optimum model of winter remote sensing inver-sion PM2.5 concentration is established.Finally,the R2 between estimated and observed PM2.5 cocentration reaches 0.5 1 .Based on the above model,monthly average surface PM2.5 concentration is calculated.It suggests that month-ly average surface PM2.5 concentration is higher in Janurary,while air quality reaches a severe pollution level in the southern part of Jing-Jin-Ji regions.