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Population Density, v4 (2000, 2005, 2010, 2015, 2020)

Gridded Population of the World (GPW), v4

To provide estimates of population density for the years 2000, 2005, 2010, 2015, and 2020, based on counts consistent with national censuses and population registers, as raster data to facilitate data integration.

UN-Adjusted Population Density, v4 (2000, 2005, 2010, 2015, 2020)

Gridded Population of the World (GPW), v4

To provide estimates of population density for the years 2000, 2005, 2010, 2015, and 2020, based on counts consistent with national censuses and population registers with respect to relative spatial distribution, but adjusted to match United Nations country totals.

Population Count, v4 (2000, 2005, 2010, 2015, 2020)

Gridded Population of the World (GPW), v4

To provide estimates of population count for the years 2000, 2005, 2010, 2015, and 2020, consistent with national censuses and population registers, as raster data to facilitate data integration.

UN-Adjusted Population Count, v4 (2000, 2005, 2010, 2015, 2020)

Gridded Population of the World (GPW), v4

To provide estimates of population count for the years 2000, 2005, 2010, 2015, and 2020, consistent with national censuses and population registers with respect to relative spatial distribution, but adjusted to match United Nations country totals. 

National Identifier Grid, v4 (2010)

Gridded Population of the World (GPW), v4

To provide a raster representation of nation-states in GPWv4 for use in aggregating population data.

Land and Water Area, v4 (2010)

Gridded Population of the World (GPW), v4

To provide pixel-level land and water surface area estimates.

Data Quality Indicators, v4 (2010)

Gridded Population of the World (GPW), v4

To provide additional information about the quality of input population data and to provide context for the population count and density grids.

Global Annual PM2.5 Grids from MODIS, MISR and SeaWiFS Aerosol Optical Depth (AOD), v1 (1998 – 2012)

Satellite-Derived Environmental Indicators

To provide a continuous surface of concentrations (micrograms per cubic meter) of fine particulate matter of 2.5 micrometers or smaller (PM2.5) for health and environmental research.

Global Estimated Net Migration Grids By Decade, v1 (1970 – 2000)

Population Dynamics

To provide estimates of net-migration (in-migration minus out-migration) per one-kilometer grid cell on a decadal basis for the 1970s, 1980s, and 1990s.

Global Grid of Probabilities of Urban Expansion to 2030, v1 (2000 – 2030)

Land Use and Land Cover

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

Global Annual Average PM2.5 Grids from MODIS and MISR Aerosol Optical Depth (AOD), v1 (2001 – 2010)

Satellite-Derived Environmental Indicators

To provide a continuous surface of concentrations (micrograms per cubic meter) of particulate matter of 2.5 micrometers or smaller (PM2.5) for health and environmental research.

Global Mangrove Forests Distribution, v1 (2000)

Land Use and Land Cover

To provide data that can be used in global mangrove forest distribution modeling, land cover change analysis, global carbon accounting studies and to assist with policy-making in regards to human-environment interactions and future adaptive strategies.

Anthropogenic Biomes of the World, v2 (2000)

Anthropogenic Biomes

To provide information on anthropogenic transformation of the biosphere c. 2000 for global land use studies and research on human-environment interactions.

Anthropogenic Biomes of the World, v2 (1900)

Anthropogenic Biomes

To provide information on anthropogenic transformation of the biosphere c. 1900 for global land use studies and research on human-environment interactions.

Anthropogenic Biomes of the World, v2 (1800)

Anthropogenic Biomes

To provide information on anthropogenic transformation of the biosphere c. 1800 for global land use studies and research on human-environment interactions.

Anthropogenic Biomes of the World, v2 (1700)

Anthropogenic Biomes

To provide information on anthropogenic transformation of the biosphere c. 1700 for global land use studies and research on human-environment interactions.

Summary File 3, v1 (1990)

U.S. Census Grids

To provide gridded demographic data, including characteristics of income, education, and housing, for the United States for data integration.

Summary File 3: Metropolitan Statistical Areas, v1 (1990)

U.S. Census Grids

To provide gridded demographic data, including characteristics of income, education, and housing, for metropolitan statistical areas at a finer resolution than is available in the 30 arc-second grids used for the United States as a whole.

Summary File 1, v1 (1990)

U.S. Census Grids

To provide gridded demographic data, including characteristics of age, race, ethnicity, and housing, for the United States.

Summary File 1: Metropolitan Statistical Areas, v1 (1990)

U.S. Census Grids

To provide gridded demographic data, including characteristics of age, race, ethnicity, and housing, for metropolitan statistical areas at a finer resolution than is available in the 30 arc-second grids used for the United States as a whole.

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