光气候 meaning in English

light climate

But those were not enough - cause there are many factors that affect daylight , we cannot grasped the rule of daylight change . so most countries in the world , made the outdoor horizontal illuminance of overcast sky as the daylighting standard
为解决这些问题，各国的学者通过对本国光气候的长期观测得到了晴天天空、阴天天空和中间天空的天空亮度分布，并希望以此为依据，制定各个不同国家和地区的采光标准和天然采光的计算方法。
This kind of standard wastes too much sunlight energy , so to change the situation , many people began to study the intermediate sky . now , they had drawn some conclusions . in our country , this kind of research did not go for a long time , and we lack of large amount of data
摘要目前，由于对我国的光气候研究时间较短，且缺乏大量、准确的观测数据，无法得到准确而全面的晴天、阴天以及中间天空的天空亮度分布，因而仍以阴天时的室外水平照度作为天然采光的标准。