江西千烟洲气溶胶光学厚度的反演与分析

Retrieval and Analysis of Aerosol Optical Thickness over Qianyanzhou Region

2005年10—11月份,中国科学院遥感应用研究所联合北京师范大学遥感中心等几家单位在江西千烟洲地区进行了为期30天的遥感实验,在实验期间,采用法国C IMEL公司研制的太阳分光光度计CE318进行了连续测量,得到了大量的大气光学数据。利用这些数据,反演了气溶胶光学厚度和相应的Angstrom参数,分析了光学厚度和Angstrom参数的日变化和逐日变化,并讨论了这些变化的原因。本文还讨论了在反演气溶胶光学厚度过程中可能的误差源。

From October to November, IRSA of CAS in cooperation with Beijing Normal University Remote Sensing Center and some other research institutes carried out a Remote Sensing experiment in Qianyanzhou Region, Jiangxi Province. During the experiment period automatic sun tracking photometer CE318 produced by France CIMEL company was used to measure the sun direct irradiance, and a large amount of data was obtained. Based on these data, AOT （aerosol optical thickness） and Angstrom parameters were retrieved. Through analyzing the variation of AOT and Angstrom parameters, the reason which cause the variation was discussed. In this paper some factors which could introduce error into the retrieval result were also discussed.