Nighttime Lights PC1-4 based on the Version 4 DMSP-OLS Nighttime Lights Time Series 1997–2014

Nighttime Lights PC1-4 based on the Version 4 DMSP-OLS Nighttime Lights Time Series 1997–2014. Derived using SAGA GIS Principal Component analysis. Image and data processing by NOAA's National Geophysical Data Center. DMSP data collected by US Air Force Weather Agency. To access and visualize maps use: OpenLandMap.org If you discover a bug, artifact or inconsistency in the maps, or if you have a question please use some of the following channels: Technical issues and questions about the code: https://gitlab.com/openlandmap/global-layers/issues General questions and comments: https://disqus.com/home/forums/landgis/本数据集为基于1997至2014年第4版DMSP-OLS夜间灯光时间序列生成的PC1-4夜间灯光主成分。其通过SAGA GIS（SAGA地理信息系统）主成分分析提取得到。影像与数据处理工作由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）下属国家地理数据中心完成，原始DMSP数据由美国空军气象部队采集。 如需访问并可视化相关地图，请前往OpenLandMap.org。若您发现地图存在缺陷、伪影或不一致之处，或有相关疑问，请通过以下渠道反馈：代码相关技术问题与咨询：https://gitlab.com/openlandmap/global-layers/issues；通用咨询与意见反馈：https://disqus.com/home/forums/landgis/