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与人类活动息息相关的夜光遥感影像已被广泛应用于社会经济研究，在研究城市动态发展等方面具有极大的应用潜力。基于2012—2021年年均NPP/VIIRS夜光遥感影像，利用夜间灯光统计、位序—规模法则和标准差椭圆分析了江苏省城市化动态发展过程。结果表明，江苏省整体的夜光总量呈增长态势（增速为75.4%），其中苏北地区的增速最明显，盐城市高达174.5%，苏中和苏北地区夜光规模占比均有所上升；捷夫指数呈下降趋势，城市间呈分散型发展，结构愈加均衡；标准差椭圆面积有所增大，在空间上呈扩张趋势，椭圆重心向西北方向偏移。
Abstract：Nighttime light highly related to human activities has been extensively applied in studying the spatio-temporal changes of urban pattern. Based on annual average NPP/VIIRS nighttime light remote sensing images from 2012 to 2021, we used the nighttime light statistics,rank-scale rule and standard deviation ellipse to analyze urban dynamic pattern in Jiangsu Province. The results show that the growth rate of nighttime lights in Jiangsu is 75.4%. The northern of Jiangsu Province shows the highest growth rate. The proportions of nighttime light in the middle and northern of Jiangsu Province have also increased. The q value is showing a downward trend, the scale of nighttime light is scattered, and the scale of development tends to be balanced. The area of standard deviation ellipse has increased, showing a spatial expansion trend, and the barycenter of ellipse has shifted towards the northwest direction.
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基本信息:
中图分类号:P237
引用信息:
[1]赵建才,王妍.基于夜光遥感的江苏省城市格局动态发展研究[J].地理空间信息,2024,22(11):20-23+37.
2024-11-26
2024-11-26