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Evaluating urban development and socio-economic disparity in India through nighttime light data

Journal of Geographical Sciences 2024年第12期34卷 2440-2456页

作者： YU Jingtong LIU Lingcen BAN Yifang ZHANG Qian College of Land Science and Technology China Agricultural UniversityBeijing 100083China Division of Geoinformatics KTH Royal Institute of TechnologyStockholm 10044Sweden

Balanced development and the reduction of inequality are central objectives of the United Nations Sustainable Development Goals(SDGs).This study explores the use of Nighttime Light(NTL)brightness and the Nighttime Light Development Index(NLDI)as indicators of socioeconomic development in urban centers,focusing on six Indian *** examines the correlation between these indices and socioeconomic inequality across affluent neighborhoods,urban slums,downtown areas,and general urban areas in 2015,2018,and *** results reveal that lighting brightness in affluent areas can be lower than that in bustling downtowns,due to factors such as lower residential *** challenges the conventional assumption that higher NTL necessarily indicates greater *** study further confirmed significant developmental disparities between well-lit downtowns and poorly illuminated peripheral slum areas,as reflected by lower NLDI ***,the results uncover a phenomenon termed“same value but different spectrum”based on a careful examination of NLDI values of urban centers and their corresponding *** suggests that NLDI alone may not fully capture the complexity of urban development,and that underlying development trajectories,along with on-the-ground realities,must be further *** findings emphasize the importance of applying NLDI for urban internal *** addition,the study highlights the necessity for nuanced urban planning and targeted policy interventions specifically tailored to the unique conditions of different urban areas.

关键词： socio-economic inequality Nighttime Light Development Index(NLDI) regional disparity Indian cities

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