基于DMSP/OLS和NPP/VIIRS夜光影像的中原城市群城市扩张的时空演变及驱动力分析

胡苗苗, 闫庆武, 李建辉

Analyzing the spatio-temporal evolution of urban expansion in the Central Plains urban agglomeration and its driving force based on DMSP/OLS and NPP/VIIRS nighttime light images

HU Miaomiao, YAN Qingwu, LI Jianhui

图7 中原城市群标准差椭圆及其重心变动

Fig.7 Standard deviation ellipse and its center of gravity change in Central Plains urban agglomeration