CE318太阳光度计观测资料应用前景及其解读

2002年中国气象局在沙尘暴各观测站点安装了CE318太阳光度计,用于探测大气气溶胶。为了使研究人员了解CE318太阳光度计工作原理、数据存储格式及解读方法,使这批观测数据很好地发挥作用,该文介绍了气溶胶气候效应的研究现状,分析了应用太阳光度计这种地基手段探测气溶胶的优势以及探测数据的应用前景。同时,针对光度计原始观测资料直接应用的瓶颈问题———资料解读方案进行了讨论,包括定标、气溶胶光学厚度的计算、光度计数据质量控制方法等。结合新疆塔中站光度计观测资料,列举了采用Langley法进行定标和计算气溶胶光学厚度的步骤。

Application Prospect of Measurement by Sun Photometer CE318 and Retrieval Methodology

The CE318 sun photometers are installed at 20 weather stations,which constituted the dust storm network for monitoring aerosol by the China Meteorological Administration since 2002.These measurements have not been well utilized because users are unfamiliar with the principles,data format and retrieval(methodology) of CE318 sun photometers.The impact of aerosol on climate and the application of data observed by photometers are discussed.At the same time,the retrieval method of sun photometer data,including the(calibration) and retrieval of aerosol optical depth and the quality control of data,is introduced.Combing with(data) at Tazhong,the Langley method for calculating the aerosol optical depth and the related issues are(described).