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

<p>Nighttime Lights&nbsp;PC1-4 based on the Version 4 <a href="https://ngdc.noaa.gov/eog/dmsp/downloadV4composites.html">DMSP-OLS Nighttime Lights Time Series</a> 1997&ndash;2014. Derived using SAGA GIS Principal Component analysis.&nbsp;Image and data processing by NOAA&#39;s National Geophysical Data Center. DMSP data collected by US Air Force Weather Agency.</p> <p>To access and visualize maps use:&nbsp;&nbsp;<a href="http://www.openlandmap.org/">OpenLandMap.org</a></p> <p>If you discover a bug, artifact or inconsistency in the maps, or if you have a question please use some of the following channels:</p> <ul> <li>Technical issues and questions about the code:&nbsp;<a href="https://gitlab.com/openlandmap/global-layers/issues">https://gitlab.com/openlandmap/global-layers/issues</a>&nbsp;</li> <li>General questions and comments:&nbsp;<a href="https://disqus.com/home/forums/landgis/">https://disqus.com/home/forums/landgis/</a></li> </ul>