To provide the ATSDR polygon data set of hazardous waste sites in the United States, Puerto Rico, and other territories which can be used to identify nearby populations and assess their potential risk.

To provide fundamental GIS maps of China, and neighboring countries and regions.

To provide a dynamic matrix for the identification of spatially and temporally-specific data on Chinese administrative units.

To provide raster based GIS coverage of Mexican population for data integration.

To provide an authoritative boundary layer for the geographies associated with the Public Use Micro Sample (PUMS) data files.

To provide a database of works pertaining to the administrative geography of China, searchable by location, time, and subject matter.

To provide a database of public China maps, searchable by location, scale, content, publisher, and publication date.

To provide information on the geographical locations, areas, administrative division codes, and names of the administrative regions of China.

To provide an easily accessible, corrected data set of polygons for hazardous waste sites in the United States which can be used to identify nearby populations and assess their potential risk.

To provide information of geographical locations, areas, administrative division codes, and names for the administrative regions of China.

To provide documentation on roads data sets that are potential candidates for inclusion in the Global Roads Open Access Data Set (gROADS), and which may be useful to others searching for data on road infrastructure.

To provide county-level social information of China in a series of tables from the China Provincial Economic Yearbook data for 1990 and 1991.

To provide a geographically explicit and reliable database of dams for the scientific community.

To provide high spatial resolution estimates of global urban extent derived from global 30m Landsat satellite data for the target year 2010 and a companion dataset to the Global Man-made Impervious Surface (GMIS) dataset.

To provide high spatial resolution estimates of global man-made imperviousness for the target year 2010, derived from global 30m Landsat satellite data and a companion dataset to the Global Human Built-up And Settlement Extent (HBASE) dataset.

To provide a future development threat map based on combining these resources: agricultural expansion, urban expansion, conventional oil and gas, unconventional oil and gas, coal, mining, biofuels, solar, and wind.

To provide an urban place GIS coverage of Mexico.

To provide urban land use and informal settlements for the years 1982, 1992, 1998, and 2002 in Dar es Salaam, Tanzania.

To provide county and state boundary data for the U.S.

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.