Fig. 7. DNB time series, high-resolution image, and annual NTL change maps for the selected consistent dark pixel with scattering light. It is located near a desert highway with improvement in electrification around 2017, in northwestern Saudi Arabia. (a) DNB time series at a dark barren pixel with a commission error before the consistent dark pixel removal was applied. The red, green, blue, and grey colors indicate the different VZA intervals, lines represent the fitting models, small dots are the DNB observations, and the large magenta dot is the detected change (red cross in Fig. 7c) that would be excluded by the dark pixel removal process (red cross in Fig. 7d). (b) The high-resolution Google Earth image in July 2018 of the selected pixel in Fig. 7a. The red rectangle represents the location and size of the selected pixel. (c) The accumulated annual NTL change maps before the dark pixel removal process. (d) The accumulated annual NTL change maps after the dark pixel removal process. The dark background in Fig. 7c and Fig. 7d is the Esri ArcMap Dark Gray Canvas base map.