基于夜间灯光数据的哈大齐工业走廊城市空间扩展特征分析  

Analysis of Urban Space Expansion Characteristics of Hadaqi Industrial Corridor Based on Night Light Data

作　　者：刘亚亭 LIU Yating(School of Surveying and Mapping Science and Engineering, Shandong University of Science and Technology, Qingdao Shandong 266590, China)

机构地区：[1]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《北京测绘》2021年第9期1191-1195,共5页Beijing Surveying and Mapping

摘　　要：随着改革开放的深入,为了推动东北地区经济发展,对哈大齐工业走廊城市空间格局演化进行研究有重要意义。利用2005—2019年美国国防气象卫星计划线性扫描系统(Defense Meteorological Satellite Program-Operational Linescan System,DMSP-OLS)和夜光传感器可见光近红外成像辐射搭载国家极轨卫星(Nation Polar Orbiting Partnership-VisibleInfraredImaging Radiometer Suite,NPP-VIIRS)夜间灯光数据进行研究。首先,通过回归分析建立校正模型,其次利用最佳灯光阈值提取城市建成区范围,最后引入扩展速度、紧凑度、分形维数、城市重心等相关数学模型,定量研究空间扩展规律。分析城市空间扩展的驱动力主要为人口因素、经济因素、政策规划因素,为东北地区经济发展提供理论依据。With the deepening of reform and opening up,in order to promote the economic development of northeast China,it is great significance to study the evolution of urban spatial pattern of Hadaqi Industrial.In this paper,the 2005—2019 DMSP-OLS and NPP-VIIRS nighttime lighting data were applied.Firstly,a correction model was established through regression analysis to extend the comparability of data time series.Secondly,the optimal lighting threshold wasexplored to extract the urban built-up area range.Finally,some mathematical models,such as expansion rate,compactness,fractal dimension,urban center of gravity and other related mathematical models wereintroduced to quantitatively study the spatial expansion characteristics.Analysis result demonstrated that the driving force of urban expansion is mainly demographic factors,economic factors,policy planning factors,which provided a theoretical basis for the economic development of northeast China.

关 键 词：夜间灯光数据 空间扩展 哈大齐城市群 驱动力 

分 类 号：P208[天文地球—地图制图学与地理信息工程]