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基于DMSP/OLS夜间灯光数据的城市空间扩展研究综述 被引量:20

Overviewof Researches Based on Urban Expansion Via DMSP/OLS Night-time Light Data
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摘要 不同于传统的遥感探测器,DMSP/OLS可获取居民地、车流、渔船等夜间灯光信号,被广泛地应用于城市空间扩展研究中。目前,基于灯光数据的城市扩展研究很多,但缺乏对该领域研究进展的系统性分析与总结。基于此,分析比较现有研究实例,从阈值设定法提取城区和灯光数据城市监测两方面展开讨论,分析目前研究欠缺之处并探讨解决方案。同时,构建新型城市重心模型,进行实例分析,最后展望夜间灯光数据在城市空间扩展方面的研究趋势:1加强对数据本身处理方法的研究;2充分利用灯光强度信息;3构建新型指标反映城市扩展。 Unlike traditional remote sensing detectors, DMSP/OLS can get low-intensity light signals and is widely used in the study of urban spatial expansion.Despite the research based on urban expansion via DMSP/OLS night-time light data has achieved fruitful results, no one gives a summary about the research progress.In response to this situation, this paper analyzed the existing researches about this, summarized and drew several conclusions based on two aspects, namely, town extraction methods and different forms of ur-ban expansion.It also pointed out the shortcomings of the current study and then gave several solutions;what’ s more, it came up with a New City Center Model.In the end, it predicted the trends of future research.Firstly, we can have a deeply research on the meth-ods of data processing.Secondly, it is beneficial to make full use of the intensity information of night-time light data.Lastly, it is meaningful to build the new indicators which can reflect the urban expansion.
作者 赵敏 程维明
出处 《测绘与空间地理信息》 2015年第3期64-68,共5页 Geomatics & Spatial Information Technology
基金 国家科技基础性专项(FY110400)资助
关键词 DMSP/OLS 夜间灯光 城市扩展 空间格局 DMSP /OLS night-time light urban expansion spatial pattern
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参考文献22

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