渤黄海上空气溶胶遥感探测与分析

Remotely sensed detection and analysis of aerosols over Bohai Sea and Yellow Sea

气溶胶的来源及变化分析对于研究气候变化和海洋环境污染都有重要意义。遥感技术能实时提供大尺度气溶胶时空变化信息,这对于估算入海通量有重要参考价值。本文利用MODIS资料,通过查算表拟合等方法对渤黄海上空的气溶胶光学厚度和Angstrom指数,进行了估算。整个空间分布结果基本合理,和台站测试结果也比较类似。研究表明遥感方法较好地展现了气溶胶光学厚度和Angstrom指数的空间变化特征,可为进一步分析气溶胶输移路径及建立入海通量估算模型等研究提供参考。

The source and variation of aerosols are important for the study of climate change and ocean environmental pollution. The Remote sense can dynamically provide large-scale spatial and temporal information of aerosols, which is valuable for estimate of the flux of atmospheric input of aerosols. The aerosol optical thickness and Angstrom index of the aerosols over Bohai and Yellow Sea were estimated. The aerosol spatial pattern is reasonable and it is similar with the measurement result of the stations. It is shown that the spatial variation of aerosol optical thickness and Angstrom index can be revealed by the remote sense. The result can provide reference for the study of aerosol transport and the flux model of atmospheric input.