A few weeks ago, The New World Atlas of Artificial Night Sky Brightness was published in Science Advances. The article is a report on artificial sky radiance, a current update to previous data. The supplement to the article is a light pollution map. Since I didn’t like the quality of the CIRES web visualization of the data, I decided to create a vectorized version. As the GeoTIFF source map isn’t publically available, I used the provided KMZ preview as a starting point. After extracting and assembling the JPEG tiles, I used a bilateral filter and other processing to remove the compression artifacts and convert the image into a usable state. I then used GDAL to apply coordinate information to the image and used makesurface and tippecanoe to create vector tiles of the map. Finally, I visualized the data using the Mapbox Dark style.