MULTI-DIMENSIONAL POVERTY IDENTIFICATION AND EVOLUTION ANALYSIS IN HEBEI PROVINCE BASED ON NIGHTTIME LIGHT REMOTE SENSING DATA

This study develops a new method to estimate aerosol loading over land from the DQ-1 Wide Swath Imager satellite. The method corrects errors caused by uncertain land surface brightness while keeping a physics-based retrieval process. Tests over the Beijing–Tianjin–Hebei region show reduced bias and better spatial consistency. The work supports more reliable early use of new satellite sensors for regional air-quality monitoring.