利用夜间灯光数据的城市群格局变化分析Spatial pattern change of China urban agglomerations using nighttime light data
王成港,宁晓刚,王浩,刘效江
摘要(Abstract):
针对传统的统计数据具有行政单元统计约束的缺点、DMSP/OLS夜间灯光数据存在分辨率低、像元辐射值饱和的问题,该文使用NPP/VIIRS夜间灯光数据、城区边界、列车时刻表、百度地图API等数据,通过空间统计、标准差椭圆、位序-规模分布、空间联系测度研究中国九大城市群2012与2017年的空间格局变化。结果表明:长三角、珠三角、京津冀城市群的灯光总量和平均灯光均位于前列;长三角、珠三角、成渝、哈长、关中平原城市群灯光变分散,京津冀、长江中游、中原、北部湾城市群灯光变集中,成渝城市群夜间灯光重心移动最大,向重庆方向移动;长江中游城市群接近捷夫分布,中原城市群为序列分布,其他城市群为首位分布;长三角、珠三角、京津冀城市群的总体联系强度最高,各城市群边缘中小城市与核心城市空间联系较弱。
关键词(KeyWords): NPP/VIIRS;城市群;空间格局;标准差椭圆;位序-规模分布;空间联系
基金项目(Foundation): 国家重点研发计划项目(2016YFE0205300);; 国家自然科学基金项目(41401513)
作者(Author): 王成港,宁晓刚,王浩,刘效江
DOI: 10.16251/j.cnki.1009-2307.2019.06.026
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