Decoupling Population Decline and Urban Vitality: Nighttime Light Evidence from Shrinking Cities in South Korea

[General Information]Project Title: Decoupling Population Decline and Urban Vitality: Nighttime Light Evidence from Shrinking Cities in South KoreaDataset Date: 2026-03-14 [Dataset Overview]1. ntl_aggregated_1k.xlsx : Night-time Light (NTL) intensity values. (Source: NOAA)2. time-series_data.xlsx : (Source: SGIS) - Sheets: #1 population, #2 households, #3 youth, #4 elderly, #5 employment, #6 establishment, #7 HHI index, #8 tertiary establishment3. level_data.xlsx : - Sheets: #1 urban_land_use, #2 building, #3 road4. pop89_kosis.xlsx : Total population data for the 89 administrative districts (Source: KOSIS) *Note: All grid-level data are provided for the period 2015–2023 at 1km x 1km resolution.*Mapping Note: "grid_id" values were converted from the original Korean administrative codes to alphanumeric identifiers (e.g., 'Gada' to 'GD') for technical processing and anonymity.