Fig. 1. Comparison of nighttime lighting images before and after correction in Southern Xinjiang

Fig. 2. Three fitting curves of DN values corresponding to DMSP/OLS and NPP/VIIRS images in 2012，2013

Fig. 3. Comparison of NPP / VIIRS original， NPP / VIIRS simulation and DMSP-OLLS images of construction land in Southern Xinjiang in 2013

Fig. 4. Correlation between total night Light and GDP of secondary and tertiary industries in 2010 and 2015

Fig. 5. Economic gravity center migration and standard deviation ellipse of four prefectures in Southern Xinjiang based on nighttime light data

Fig. 6. Spatial autocorrelation and aggregation changes of economic development in four southern Xinjiang prefectures from 2005 to 2020

Fig. 7. Spatial agglomeration change of regional economic development in Southern Xinjiang from 2005 to 2020

Fig. 8. Evolution and spatial distribution of economic development pattern in four prefectures of Southern Xinjiang from 2005 to 2020