基于夜光遥感的人口空间化估算  

Population Spatialization Estimation Based on Nighttime Satellite Imagery

作　　者：檀成龙 TAN Chenglong(Service Center of Natural Resources of Liaoning Province,Jinzhou 121000,China)

机构地区：[1]辽宁省自然资源事务服务中心,辽宁锦州121000

出　　处：《测绘与空间地理信息》2022年第5期103-105,109,共4页Geomatics & Spatial Information Technology

摘　　要：精细的空间化人口数据能够充分展示人口的空间分布和人口密集程度。本文利用珞珈一号夜间灯光数据,通过人口格网化和区域化两种空间化处理方法得到沈阳市不同尺度大小的格网人口数据和区县人口数目。对利用130 m空间分辨率的珞珈一号影像进行人口数目空间化的格网大小进行试验,得出结论:人口数目估算精度随着格网尺度的增大而变低,250 m大小的格网能够较好地描述市级人口空间分布和估算人口数目。根据处理结果的精度可以得出利用珞珈一号夜间灯光数据进行市级人口空间化是可行的。Detailed spatialized population data can fully show the spatial distribution and population density of the population.This paper uses Luojia No.1 nighttime light data to obtain population grid data and district population counts of different sizes in Shenyang city through two spatial processing methods:population gridization and regionalization.The size of the grid for spatialization of the population using the Luojia No.1 image was tested.It was found that the accuracy of the population estimation decreased as the grid size increased.The 250-meter grid can better describe the spatial distribution of the city-level population and estimate the population.According to the accuracy of the processing results,it can be concluded that it is feasible to use the night light data of Luojia No.1 to spatialize the municipal population.

关 键 词：珞珈一号 夜间灯光数据 人口空间化 人口估算 

分 类 号：P237[天文地球—摄影测量与遥感]