基于夜光遥感的鄂西城市群时空变化特征分析  

Analysis of spatiotemporal changes in the western Hubei urban agglomeration based on night light remote sensing

作　　者：李嗣炀 曾怀恩 王之豪[1,2] 王俊杰 Li Siyang;Zeng Huaien;Wang Zhihao;Wang Junjie(National Field Observation and Research Station of Landslides in the Three Gorges Reservoir Area of Yangtze River,China Three Gorges University,Yichang 443002,China;College of Civil Engineering&Architecture,China Three Gorges University,Yichang 443002,China;Hubei Key Laboratory of Construction and Management in Hydropower Engineering,China Three Gorges University,Yichang 443002,China)

机构地区：[1]湖北长江三峡滑坡国家野外科学观测研究站,湖北宜昌443002 [2]三峡大学土木与建筑学院,湖北宜昌443002 [3]湖北省水电工程施工与管理重点实验室(三峡大学),湖北宜昌443002

出　　处：《工程勘察》2025年第4期43-50,65,共9页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金资助项目(42074005);湖北长江三峡滑坡国家野外科学观测研究站开放基金项目(2018KTL14);湖北省水电工程施工与管理重点实验室(三峡大学)开放基金项目(2014KSD13)。

摘　　要：为探究鄂西城市群城市规模的时空演变特征,基于NPP/VIIRS年度夜光遥感影像,运用数理统计、位序规模法、重心迁移轨迹与标准差椭圆的方法,综合分析2015~2021年鄂西城市群时空演变特征。研究结果表明,2015~2021年间,鄂西城市群各城市夜间灯光均呈现增长趋势,平均增长率超过120%;鄂西城市群大城市首位度增大,夜光辐射聚集作用增强,逐渐向多城市均衡发展模式转变;城市群重心整体呈现从西南往东北的迁移趋势,整体迁移12.28km;整体标准差椭圆呈逆时针方向旋转,面积有缩减现象。本文可为鄂西城市群区域发展规划及战略部署提供参考。In order to explore the spatiotemporal evolution characteristics of the urban size of the western Hubei urban agglomeration,based on the NPP/VIIRS annual night light remote sensing images,mathematical statistics,rank-size rule,shifting trajectory of center of gravity,and its standard deviation ellipse,are used to comprehensively analyze the spatiotemporal evolution characteristics of the western Hubei urban agglomeration from 2015 to 2021.The results indicate that from 2015 to 2021,the nighttime lighting in various cities of the western Hubei urban agglomeration showed an increasing trend,with an average growth rate of over 120%.The primacy of major cities in the western Hubei urban agglomeration has increased,and the gathering effect of noctilucent radiation has increased,gradually shifting towards a balanced development model of multiple cities;The overall center of gravity of the urban agglomeration shows a shifting trend from southwest to northeast,with an overall shift of 12.28km.The overall standard deviation ellipse rotates counterclockwise and there is a decrease in area.This paper can provide reference for the regional development planning and strategic deployment of the urban agglomeration in western Hubei.

关 键 词：鄂西城市群 夜光遥感 位序—规模法则 重心迁移 标准差椭圆 

分 类 号：P237[天文地球—摄影测量与遥感]