CAJ | 학술논문

分析了DMSP/OLS夜间灯光数据在提取城市面积、构建城市化指标及评价城市化环境效应方面的应用研究进展。总结了DMSP/OLS灯光数据在城市化研究中存在的问题和未来应用前景。主要存在问题：1)DMSP/OLS遥感数据本身及处理过程引起的误差容易造成研究结果精度下降；2)已有研究重视数理统计结果，缺乏对城市化机制的解释；3)简单的线性回归模型无法准确表示城市扩张的时空异质性。需要进一步研究的问题：1)从城市化内在驱动力出发，选择合适的多要素变量构建非线性模型，监测和模拟城市化发展的时空动态过程；2)基于DMSP/OLS遥感数据及社会经济数据构建复合指标，以提高城市面积获取的精度；3)拓宽DMSP/OLS遥感数据在城市化监测领域的应用。
분석료DMSP/OLS야간등광수거재제취성시면적、구건성시화지표급평개성시화배경효응방면적응용연구진전。총결료DMSP/OLS등광수거재성시화연구중존재적문제화미래응용전경。주요존재문제：1)DMSP/OLS요감수거본신급처리과정인기적오차용역조성연구결과정도하강；2)이유연구중시수리통계결과，결핍대성시화궤제적해석；3)간단적선성회귀모형무법준학표시성시확장적시공이질성。수요진일보연구적문제：1)종성시화내재구동력출발，선택합괄적다요소변량구건비선성모형，감측화모의성시화발전적시공동태과정；2)기우DMSP/OLS요감수거급사회경제수거구건복합지표，이제고성시면적획취적정도；3)탁관DMSP/OLS요감수거재성시화감측영역적응용。
Urbanization is an important part of global change.The extraction of urban area is essential for studying urbanization and its environment effect.DMSP/OLS nighttime light data are powerful in monitoring human activity with to the following advantages:suitable for large scale research,light sensitivity at night,and high temporal resolution.This paper reviews applications of DMSP/OLS data:extraction of urban area, urbanization indicators building and evaluation of environment effect of urbanization.The following current problems are concluded.1 )Errors derived from both DMSP/OLS data and processing methods may easily decrease accuracy;2)Current studies attach much emphasis on mathematical statistics but little attention is paid to explanation of mechanisms behind urbanization;3 )Linear regression model is far from reasonable to represent spatial and temporal heterogeneity of urban expansion.Possible future breakthroughs for DMSP/OLS data application may be made in the following areas. 1 ) Based on internal driving mechanism of urbanization,nonlinear model should be built by means of appropriate multi-factor variables to monitor and simulate spatial and temporal dynamics of urban development;2)Composite indicators integrating DMSP/OLS data and social economic data should be constructed to improve accuracy of extracting urban area;3 )DMSP/OLS nighttime light data can be integrated to monitor many more factors of urban ecosystem.