大连市主城区照度反演分级图

本项目的数据主要利用珞珈遥感数据、公众感知数据和实测数据的耦合，建立珞伽数据与实测数据之间的回归模型，在ENVI中以预处理后的大连市珞珈遥测辐射亮度数据为输入数据源，带入回归方程对地面水平方向照度值进行反演计算，并结合GIS数据可视化功能制作大连市的水平方向照度反演地图。本项目利用对大连典型区域的照度实测数据与相对应的遥感数据建立回归模型并反演出大连市整个主城区的照度地图，该地图直观的反应地面真实照度。

This project adopts the coupling of Luojia remote sensing data, public perception data and field measurement data to establish a regression model between Luojia data and field measurement data. Taking the preprocessed Luojia remote sensing radiance data of Dalian City as the input data source in ENVI, the regression equation is introduced to invert and calculate the ground horizontal illuminance values. Combined with the data visualization function of GIS, the horizontal illuminance inversion map of Dalian is generated. This project builds a regression model using the illuminance field measurement data and corresponding remote sensing data of typical areas in Dalian, and inverts the illuminance map of the entire main urban area of Dalian, which intuitively reflects the real ground illuminance.