Typical urban agglomeration and megacities urban expansion in 2000-2020

1. This is the dataset described by the report "Global Urban Land Cover Changes in 2000-2020" submitted to Global Ecosystem and Environment Observation Analysis Research Cooperation (GEOARC). 2. The dataset includes the following subsets, i.e. urban agglomeration urban boundary, megacities urban boundary.See the description document for details. 3. The detail information of datasets is listed in Description.xlsx 4. If you have any questions, please contact Wenhui Kuang (kuangwh@igsnrr.ac.cn). 5.Related publications with this dataset. (1)Kuang W H, Du G M, Lu D S, et al. Global observation of urban expansion and land-cover dynamics using satellite big-data. Science Bulletin. 2021, 66(4): 297-300. (2)Kuang W H, Zhang S, Li X Y, et al. A 30 m resolution dataset of China’s urban impervious surface area and green space, 2000–2018. Earth System Science Data. 2021, 13(1): 63-82. (3) Kuang W H. 70 years of urban expansion across China: trajectory, pattern, and national policies. Science Bulletin. 2020, 65(23): 1970-7974. (4) Kuang W H, Dou Y Y. Investigating the patterns and dynamics of urban green space in China’s 70 major cities using satellite remote sensing. Remote Sensing. 2020, 12(12): 1929. (5) Kuang W H. National urban land-use cover change since the beginning of the 21st century and its policy implications in China. Land Use Policy. 2020, 97: 104747. (6) Kuang W H. Mapping global impervious surface area and green space within urban environments. Science China Earth Sciences. 2019, 62(10): 1591-1606. (7) Dou Y Y, Kuang W H. A comparative analysis of urban impervious surface and green space and their dynamics among 318 different size cities in China in the past 25 years. Science of the Total Environment. 2020, 706:135828. (8) Zhang S, Fang C L, Kuang W H, et al. Comparison of changes in urban land use/cover and efficiency of megaregions in China from 1980 to 2015. Remote Sensing. 2019, 11(15): 1834. (9) Pan T, Kuang W H, Zhang C, et al. City-level comparison of urban land-cover configurations from 2000-2015 across 65 countries within the global Belt and Road. Remote Sensing. 2019, 11(13): 1515