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Urban Extents Grid, v1 (1995)

Global Rural-Urban Mapping Project (GRUMP), v1

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

Population Density Grid, v1 (1990, 1995, 2000)

Global Rural-Urban Mapping Project (GRUMP), v1

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

Population Count Grid, v1 (1990, 1995, 2000)

Global Rural-Urban Mapping Project (GRUMP), v1

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

National Identifier Grid, v1 (1995, 2000, 2010)

Global Rural-Urban Mapping Project (GRUMP), v1

To permit the summation of population values by country/territory and, in combination with other data layers, the summation of population values by irregular areas represented in the other data layers and country/territory.

Land and Geographic Unit Area Grids, v1 (1990)

Global Rural-Urban Mapping Project (GRUMP), v1

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.

Phosphorus in Manure Production, v1 (1994 – 2001)

Global Fertilizer and Manure, v1

To provide phosphorus in manure production data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

Phosphorus Fertilizer Application, v1 (1994 – 2001)

Global Fertilizer and Manure, v1

To provide phosphorus fertilizer application data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

Nitrogen in Manure Production, v1 (1994 – 2001)

Global Fertilizer and Manure, v1

To provide nitrogen in manure production data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

Nitrogen Fertilizer Application, v1 (1994 – 2001)

Global Fertilizer and Manure, v1

To provide nitrogen fertilizer application data that can be used in socioeconomic and ecological modeling and to explore anthropogenic activities on ecosystems.

Pastures, v1 (2000)

Global Agricultural Lands

To provide data on the extent of pasturelands for research on human-environment interactions.

Croplands, v1 (2000)

Global Agricultural Lands

To provide data on the extent of croplands for research on human-environment interactions.

Annual Chlorophyll-a Concentration, v1 (1998 – 2007)

Indicators of Coastal Water Quality

To provide a gridded version of existing SeaWiFS data in GIS-compatible formats in order to determine concentrations of chlorophyll-a in the coastal water column and to facilitate the integration with other data.

Ancillary Data, v1 (1998 – 2007)

Indicators of Coastal Water Quality

To provide data that can assist in the extraction and analysis of chlorophyll-a concentration and trends from global grids.

Global Amphibian Presence Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of amphibian species distribution in which each grid cell is recoded to 1 (for present) or 0 (for not present) for use in modeling efforts.

Global Amphibians Original Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of amphibian species distribution at 1- kilometer that preserves the original coding (1=Extant, 2= Possibly present, 3=Probably extinct, 4=Extinct, 5=Extirpated purposely, 6=Occurs on indicated island chain, and 7=Subfossil/fossil).

Global Amphibians Family Richness Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide information on the number of amphibian species present at a 1 kilometer spatial resolution which can be used in modeling efforts, wildlife conservation planning, natural resource management, policy-making, biodiversity studies and human-environment interactions.

Mammals of the Americas Presence Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of mammal species distribution in which each grid cell is recoded to 1 (for present) or 0 (for not present) for use in modeling efforts.

Mammals of the Americas Original Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of mammal species distribution at 1- kilometer that preserves the original coding (1=Extant, 2= Possibly present, 3=Probably extinct, 4=Extinct, 5=Extirpated purposely, 6=Occurs on indicated island chain, and 7=Subfossil/fossil).

Mammals of the Americas Family Richness Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide provide information on the number of mammal species present at a 1 kilometer spatial resolution which can be used in modeling efforts, wildlife conservation planning, natural resource management, policy-making, biodiversity studies and human-environment interactions.

Birds of the Americas Presence Grids, v1 (2005 – 2007)

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of bird species presence at 1- kilometer spatial resolution, which in turn can be used in modeling efforts, wildlife conservation planning, natural resource management, policy-making, biodiversity studies and human-environment interactions.

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