使用卫星数据模拟计算重庆晴天照度  

Simulation Calculation of Sunny Illumination in Chongqing Using Satellite Data

作　　者：何荥[1,2] 徐永斌 张昕烁 He Ying;Xu Yongbin;Zhang Xinshuo(Faculty of Architecture and Urban Planning,Chongqing University,Chongqing 400045,P.R.China;Key Laboratory of Mountain Town Construction and New Technology,Ministry of Education,Chongqing University,Chongqing 400045,P.R.China)

机构地区：[1]重庆大学建筑城规学院,重庆400045 [2]重庆大学山地城镇建设与新技术教育部重点实验室,重庆400045

出　　处：《灯与照明》2020年第4期1-4,共4页Light & Lighting

基　　金：国家自然科学基金(51878089);重庆市基础研究与前沿技术研究计划(cstc 2015jcyjBX0121)

摘　　要：利用卫星数据估算重庆晴天每小时平均照度。使用地面太阳光度计测量的气溶胶光学厚度(AOD)数据对卫星遥感AOD数据进行校准;筛选影响晴天照度的因素,得到太阳高度角正弦值、气溶胶光学厚度和大气可降水含量3个重要因子;以卫星遥感AOD数据为基础,结合照度数据和气象数据,采用回归分析法建立重庆市晴天平均照度模型。A method for estimating the average hourly illuminance in sunny days in Chongqing by using satellite data is proposed.Firstly,the AOD data of satellite remote sensing is calibrated by using the AOD data of the surface solar photometer.Secondly,the factors that influence the illumination on sunny days are screened,and three important factors are obtained,namely,the sine value of solar altitude angle,aerosol optical thickness and atmospheric precipitable water content.Finally,based on satellite remote sensing AOD data,combined with illumination data and meteorological data,the average illumination model of sunny days in Chongqing was established by regression analysis method.

关 键 词：卫星 气溶胶 晴天 照度 

分 类 号：TU113.5[建筑科学—建筑理论]