CAJ | 학술논문

将NASA MODIS气溶胶光学厚度产品AOT与北京市清华园PM_(2.5)质量浓度进行比较分析.研究表明,AOT和PM_(2.5)均有明显的季节性交化特征;二者的日均值相关性在冬半年要明显低于夏半年,说明二者受到季节的显著影响.利用相对湿度和气溶胶标高等气象条件进行校正后,AOT与PM_(2.5)具有较高的相关性.因此,MODIS AOT可以作为监测PM_(2.5)分布以及传输的有效补充手段.
장NASA MODIS기용효광학후도산품AOT여북경시청화완PM_(2.5)질량농도진행비교분석.연구표명,AOT화PM_(2.5)균유명현적계절성교화특정;이자적일균치상관성재동반년요명현저우하반년,설명이자수도계절적현저영향.이용상대습도화기용효표고등기상조건진행교정후,AOT여PM_(2.5)구유교고적상관성.인차,MODIS AOT가이작위감측PM_(2.5)분포이급전수적유효보충수단.
The AOT (aerosol optical thickness) data, retrieved by the MODIS on Terra satellite, were compared with PM_(2.5) mass concentration at Tsinghua University. It was shown that both AOT and PM_(2.5) had obviously seasonal-change character, and the linear correlation coefficient between them was better in summer than in winter. After modifying weather conditions, such as RH and aerosol elevation, we always found a high correlation coefficient between AOT and PM_(2.5). The present study suggests that MODIS AOT is an effective means for monitoring PM air quality.