| 基于珞珈一号与DMSP/OLS数据的辽宁省城市空间扩张分析 |
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| 引用本文： | 孟静,魏悦,褚光辉.基于珞珈一号与DMSP/OLS数据的辽宁省城市空间扩张分析[J].测绘与空间地理信息,2021,44(4):151-154. |
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| 作者姓名： | 孟静 魏悦 褚光辉 |
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| 作者单位： | 辽宁工程技术大学 测绘与地理科学学院,辽宁 阜新123000;宁波海洋研究院,浙江 宁波315000 |
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| 摘 要： | 基于珞珈一号和DMSP/OLS夜间灯光数据,提取辽宁省城市空间用地信息并监测分析了2003—2018年城市空间扩张特征。结果表明:1)利用辽宁省DMSP/OLS长时间序列夜间灯光数据提出了一种适合校正长时间序列DMSP/OLS数据的校正方法,提高了数据的连续性和可对比性;2)弥补了统计数据在空间属性的不足,消除了过去单纯依靠统计数据分析城市空间扩张的弊端,为其他省市分析城市扩张提供新的遥感监测分析方法;3)在2003—2018年间,辽宁省城市空间扩张存在城市空间扩张与南方省份相比发展比较缓慢及协调性欠佳等问题。
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| 关 键 词： | 辽宁省 珞珈一号数据 DMSP/OLS数据 城市空间扩张 |
Analysis of Urban Spatial Expansion in Liaoning Province Based on Luojia-1 and DMSP/OLS Data |
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| MENG Jing,WEI Yue,CHU Guanghui.Analysis of Urban Spatial Expansion in Liaoning Province Based on Luojia-1 and DMSP/OLS Data[J].Geomatics & Spatial Information Technology,2021,44(4):151-154. |
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| Authors: | MENG Jing WEI Yue CHU Guanghui |
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| Institution: | (School of Geomatics,Liaoning Technical University,Fuxin 123000,China;Ningbo Institute of Oceanography,Ningbo 315000,China) |
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| Abstract: | Based on Luojia-1 and DMSP/OLS night light data,the information of urban land use in Liaoning Province was extracted and the characteristics of urban spatial expansion from 2003 to 2018 were monitored and analyzed.The results show that:(1)A correction method suitable for correcting long-term DMSP/OLS data is proposed by using night light data of DMSP/OLS long-term sequence in Liaoning Province,which improves the continuity and comparability of the data.(2)It makes up for the lack of spatial attributes of statistical data,changes the past drawbacks of relying solely on statistical data to analyze urban spatial expansion,and provides new remote sensing monitoring and analysis methods for other provinces and cities to analyze urban expansion.(3)Urban space expansion in Liaoning Province from 2003 to 2018,urban space expansion has been slower in development and poorly coordinated compared with southern provinces. |
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| Keywords: | Liaoning Province Luojia-1 data DMSP/OLS data urban spatial expansion |
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