基于夜间灯光遥感提取城市建成区的研究进展

Research progress on urban built-up area extraction based on night light remote sensing

随着全球城市化进程的不断加快,以城市为中心扩大人口,发展政治、经济和文化成为趋势,城市建成区的演变一直是研究的热点。随着遥感技术的发展,利用遥感影像进行长时间序列、高精度、大范围的城市建成区提取已成为主流方法。其中,灯光遥感所探测的夜间城市灯光特征,较直观地反映了人类城市社会的活动情况,为研究提供了新方向。本文系统梳理了目前主流夜间灯光遥感的发展进程,探讨了基于美国国防气象卫星计划/OLS(operational linescan system)、Suomi NPP(national polar-orbiting partnership)/可见光红外成像辐射仪和珞珈一号夜间灯光遥感进行城市建成区提取的主要方法。同时,比较了利用各数据源进行城市建成区提取的优缺点,为后续应用夜间灯光遥感进行城市建成区提取的研究提供参考。

With the accelerating process of global urbanization,a trend of gradual expansion of population,politics,economy and culture centered on cities has emerged.The evolution of urban built-up areas has always been a hot topic for scholars in various countries.With the continuous development of remote sensing technology,the use of remote sensing images for long time series,high-precision,large-scale extraction of urban built-up areas has become the mainstream approach.Especially with the emergence and development of light remote sensing,its powerful night city light detection ability directly reflects the activities of human urban society,and provides researchers with new data sources and ideas.This paper systematically reviews the current development process of mainstream night light remote sensing,the mainstream methods of extracting urban built-up areas based on DMSP/OLS,NPP/VIIRS,and LJ1A(luojia1A)night light remote sensing,and the advantages and disadvantages of extracting urban built-up areas from various data sources.It aims to provide a reference for the subsequent study on the extraction of urban built-up areas using night light remote sensing.