Urban change

Urban change monitoring maps built-up expansion, densification, impervious-surface transition, and settlement structure for planning indicators from neighbourhood to national scale.^[1][2][3] Landsat visible and infrared reflectivity supports quantification of changes from pervious to impervious surfaces.^[1] Landsat observations capture urban growth patterns and support monitoring impacts of land-use change for planning.^[1] Global built-up and settlement products use multi-temporal satellite observations to map urbanization and settlement structure.^[1][2][3] Optical, SAR, night-light, and ancillary time series support urban extent, change maps, imperviousness, growth trajectories, and planning indicators.^[1][2][3]