测绘通报 ›› 2019, Vol. 0 ›› Issue (7): 127-131,159.doi: 10.13474/j.cnki.11-2246.2019.0234

• 夜光遥感技术及应用 • 上一篇    下一篇

中国区域DMSP/OLS夜间灯光影像的校正

卢秀1,2,3, 李佳1,2, 段平1,2, 张碧蓉1,2, 李晨1,2   

  1. 1. 云南师范大学旅游与地理科学学院, 云南 昆明 650500;
    2. 云南省高校资源与环境遥感重点实验室, 云南 昆明 650500;
    3. 南京师范大学虚拟地理环境教育部重点实验室, 江苏 南京 210023
  • 收稿日期:2019-01-31 修回日期:2019-05-20 出版日期:2019-07-25 发布日期:2019-07-31
  • 通讯作者: 李佳。E-mail:keguigiser@163.com E-mail:keguigiser@163.com
  • 作者简介:卢秀(1992-),女,博士生,主要从事资源环境遥感、夜间灯光遥感研究。E-mail:lx_rsgis@163.com
  • 基金资助:
    国家自然科学基金(41561048)

Correction of nighttime light images of DMSP/OLS in China

LU Xiu1,2,3, LI Jia1,2, DUAN Ping1,2, ZHANG Birong1,2, LI Chen1,2   

  1. 1. College of Tourism and Geographical Sciences of Yunnan Normal University, Kunming 650500, China;
    2. Key Laboratory of Remote Sensing of Resources and Environment of Yunnan Province, Kunming 650500, China;
    3. Key Laboratory of Virtual Geographic Environment, Nanjing Normal University, Ministry of Education, Nanjing 210023, China
  • Received:2019-01-31 Revised:2019-05-20 Online:2019-07-25 Published:2019-07-31

摘要: 美国国防军事气象卫星(DMSP)搭载的线性扫描系统(OLS)获取的夜间灯光影像具有很强的光电放大能力,存储量小,可直观反映人类活动,被广泛应用于城镇化监测、社会经济因素估算等方面。但是获取这些数据集的各传感器均未经过星上定标,存在像元饱和问题,并且传感器获得的1992—2013年的各数据之间缺乏可比性、连续性,无法直接用于长时间序列的研究,因此需要对长时间序列的DMSP/OLS夜间灯光影像进行校正处理。校正内容包括中国区域各灯光影像间的相互校正、饱和校正、年内融合、年际间校正等;并对校正后的DMSP/OLS夜间灯光影像进行合理性检验,检验结果表明该校正方法是可行的。

关键词: DMSP/OLS, 夜间灯光影像, 影像校正, 中国区域, 长时间序列

Abstract: The nighttime light images acquired by the operational linescan system (OLS) equipped with the Defense Meteorological Satellite Program (DMSP) have strong photoelectric amplification capability, small storage capacity and can directly reflect human activities. It is applied to urbanization monitoring and social and economic factors estimation. However, each sensor that obtains these data sets has not been scaled on the star, there is a problem of pixel saturation, and these data obtained by the sensors lacks comparability and continuity from 1992 to 2013 and cannot be directly used for long-term sequences. The study therefore requires the correction of long-term sequence DMSP/OLS nighttime light images. The correction includes mutual correction, saturation correction, annual fusion, inter-annual correction, etc. among the various light images in China. And the rationality test of the corrected DMSP/OLS nighttime light images. The test results show that the calibration method is feasible.

Key words: DMSP/OLS, nighttime light images, images correction, China area, long-term sequences

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