To provide back-cast population count estimates at 30 arc-second (~1 km) resolution.

To provide back-cast population density estimates at 30 arc-second (~1 km) resolution.

To provide a global data set of average summer daytime maximum/nighttime minimum land surface temperatures (LSTs) for urban extents, as well as the LST difference between the urban area and the buffer.

To assess likely future areas of urban expansion up to the year 2030.

To provide a preliminary assessment of coastal Ramsar Sites that are at risk to inundation as a consequence of sea level rise.

To provide estimates of urban and rural populations and land areas for the years 1990, 2000, and 2010; and projections to the year 2100 for 202 countries with contiguous coastal elevations in the following categories: less than or equal to 1m, 3m, 5m, 7m, 9m, 10m, 12m, or 20m; as well as national totals.

To provide a time series of raster population data for ntegration with other data sets.

To provide a raster representation of urban areas (or urban mask) for use with GRUMP population grids or other data sets.

To provide land area data for use with GRUMPv1 population and urban data as well as a quantitative measure of resolution of the input spatial units for GRUMPv1.

To provide a time series of raster population density data for data integration.

To provide populated place (point) data with consistent population estimates.

To provide an updated map of anthropogenic impacts on the environment in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.

To provide an updated map of wild areas in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.

To provide an updated map of anthropogenic impacts on the environment in geographic projection which can be used in wildlife conservation planning, natural resource management, and research on human-environment interactions.