DOI: 10.25442/hku.23989638.v1
title: City-level greenspace exposure annual dynamic

description: 1. Global_1028_cities_greenspace_exposure_trend.shpThis data represents the annual dynamic and trends of greenspace exposure for global 1028 cities in 2000-2018 using the WorldPop population and Landsat-derived greenspace mappings. Key attributes in the shapefile data:(1) Trend: temporal trend of greenspace exposure;(2) P: P-value at a statistically significant level of 0.05;(3) Y2000-Y2018: Annual greenspace exposure level for year 2000 to 2018;(4) SouthNorth: Categories of Global South or Global North;(5) Continent: Categories of continents;(6) lat/long: Latitude/longitude of the city centriod;(7) urbanArea: urban areas in Km2.<br>2. Global_1028_cities_greenspace_exposure_thres20_trend.shpThis data represents the annual dynamic and trends of greenspace exposure (threshold = 0.20) for global 1028 cities in 2000-2018 using the WorldPop population and Landsat-derived greenspace mappings, together with threshold-based linear unmixing classification approach Key attributes in the shapefile data:(1) Trend_20: temporal trend of greenspace exposure;(2) P_20: P-value at a statistically significant level of 0.05;(3) Y2000-Y2018: Annual greenspace exposure level for year 2000 to 2018;(4) SouthNorth: Categories of Global South or Global North;(5) Continent: Categories of continents;(6) lat/long: Latitude/longitude of the city centriod;(7) urbanArea: urban areas in Km2.<br>3. Global_1028_cities_greenspace_exposure_thres30_trend.shpThis data represents the annual dynamic and trends of greenspace exposure (threshold = 0.30) for global 1028 cities in 2000-2018 using the WorldPop population and Landsat-derived greenspace mappings, together with threshold-based linear unmixing classification approach Key attributes in the shapefile data:(1) Trend_30: temporal trend of greenspace exposure;(2) P_30: P-value at a statistically significant level of 0.05;(3) Y2000-Y2018: Annual greenspace exposure level for year 2000 to 2018;(4) SouthNorth: Categories of Global South or Global North;(5) Continent: Categories of continents;(6) lat/long: Latitude/longitude of the city centriod;(7) urbanArea: urban areas in Km2.<br>4. Global_1028_cities_greenspace_exposure_thres40_trend.shpThis data represents the annual dynamic and trends of greenspace exposure (threshold = 0.40) for global 1028 cities in 2000-2018 using the WorldPop population and Landsat-derived greenspace mappings, together with threshold-based linear unmixing classification approach Key attributes in the shapefile data:(1) Trend_40: temporal trend of greenspace exposure;(2) P_40: P-value at a statistically significant level of 0.05;(3) Y2000-Y2018: Annual greenspace exposure level for year 2000 to 2018;(4) SouthNorth: Categories of Global South or Global North;(5) Continent: Categories of continents;(6) lat/long: Latitude/longitude of the city centriod;(7) urbanArea: urban areas in Km2.<br>5. Global_1028_cities_greenspace_exposure_thres50_trend.shpThis data represents the annual dynamic and trends of greenspace exposure (threshold = 0.50) for global 1028 cities in 2000-2018 using the WorldPop population and Landsat-derived greenspace mappings, together with threshold-based linear unmixing classification approach Key attributes in the shapefile data:(1) Trend_50: temporal trend of greenspace exposure;(2) P_50: P-value at a statistically significant level of 0.05;(3) Y2000-Y2018: Annual greenspace exposure level for year 2000 to 2018;(4) SouthNorth: Categories of Global South or Global North;(5) Continent: Categories of continents;(6) lat/long: Latitude/longitude of the city centriod;(7) urbanArea: urban areas in Km2.