北京地区天空亮度的观测与研究

摘要

天空亮度分布是采光设计与计算的基础数据,也是定量描述和定义天空状态的重要参数.而相关仪器设备和观测数据的缺乏却制约了国内天空亮度方面的研究.本文利用自行研发的光谱式天空扫描亮度计,对北京地区的天空亮度分布进行了为期1年的跟踪观测,并首次给出了国内的天空与CIE标准天空的对应关系,本文的研究成果为国内光气候研究提供了数据支持.%Sky luminance distribution is the basic data for day lighting design and calculation and also important parameter for quantitative description and definition of sky condition.However,shortages of relevant instrument and equipment as well as observation data restrict domestic researches on sky luminance.This paper uses a self-developed spectrum sky scanner to carry on 1-year track observation of sky luminance distribution in Beijing and gives for the first time the corresponding relationship between domestic sky and CIE standard sky model.The research findings of this paper provide data support for the domestic light climate researches.