基于多源夜间灯光数据的成渝地区近15年城市扩展监测  

Urban Expansion Monitoring in Chengdu-Chongqing Region for Recent 15 Years Based on Multi-source Nighttime Light Data

作　　者：黄琼仪 李亮[1] 李胜[1] 李国明[1] HUANG Qiongyi;LI Liang;LI Sheng;LI Guoming(The Third Surveying and Mapping Institute of Sichuan Province,Chengdu 610050,China)

机构地区：[1]四川省第三测绘工程院,四川成都610500

出　　处：《测绘与空间地理信息》2021年第12期25-30,共6页Geomatics & Spatial Information Technology

基　　金：四川省科技厅重点研发项目--自然资源统一调查监测体系理论与方法研究(2020YFS0365);四川省科技厅重点研发项目--土地资源承载力遥感监测预警关键技术研究与示范应用(2020YFS0453)资助。

摘　　要：针对成渝地区双城经济圈建设前期对成渝地区城市扩展监测的需求,本文研究了利用多源夜间灯光数据进行城市扩展监测的方法,并优化了多源夜间灯光数据整合过程中拟合样本选取的方法。本文利用2004-2018年成渝地区多源夜间灯光数据进行示范应用,围绕夜间灯光总量、夜光标准差椭圆和首位度等指标,开展了成渝地区近15年城市扩展监测。研究结果表明:整合后的多源夜间灯光数据一致性明显上升,可提高宏观尺度上长时间序列的城市扩展监测的可靠性;近15年,成渝地区“成都-重庆”双核发展趋势增强,重心逐渐东移,建成区夜间灯光总增长率超过154%。According to the need of urban expansion monitoring in Chengdu-Chongqing region in the early stage of Chengdu-Chongqing economic circle construction planning,this paper has studied the method of urban expansion monitoring by using multi-source nighttime light data,as well as optimizing the sample-selecting method during the integration of multi-source nighttime light data.The 15-year urban expansion monitoring has then been carried out in Chengdu-Chongqing Region by using multi-source nighttime light data from 2004 to 2018,selecting several monitoring index,such as total nighttime light,standard deviation ellipse of nighttime light and urban primary index.The result shows that:the consistency of multi-source nighttime light data has significantly increased after integration process,which could improve the reliability of long-time urban expansion monitoring on a macro scale.In recent 15 years,the development pattern in Chengdu-Chongqing Region has become a dual-core one and the distribution centroid has gradually shifted eastward.The total growth rate of nighttime light in built-up area has been over 154%.

关 键 词：多源夜间灯光数据 成渝地区 城市扩展监测 

分 类 号：P208[天文地球—地图制图学与地理信息工程]