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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.

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.

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.

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

Gridded Species Distribution, v1

To provide a gridded version of existing vector maps of bird 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).

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

Gridded Species Distribution, v1

To provide provide information on the number of bird 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.

Anthropogenic Biomes of the World, v1 (2001 – 2006)

Anthropogenic Biomes

To provide information on global land use for research on human-environment interactions.

Summary File 3, v1 (2000)

U.S. Census Grids

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

Summary File 3: Metropolitan Statistical Areas, v1 (2000)

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 (2000)

U.S. Census Grids

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

Summary File 1: Metropolitan Statistical Areas, v1 (2000)

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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