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Federal
Gridded Population of the World, Version 3 (GPWv3): Land and Geographic Unit Area Grids
National Aeronautics and Space Administration —
The Gridded Population of the World, Version 3 (GPWv3): Land and Geographic Unit Area Grids measure land areas in square kilometers and the mean Unit size... -
Federal
2000 population density by block group for the conterminous United States
Department of the Interior —
This data set represents 2000 population density by block group as a 100-m grid using data from the 2000 Census of Population and Housing. The demographic data is... -
Federal
Attributes for NHDplus Catchments (Version 1.1) for the Conterminous United States: Population Density, 2000
Department of the Interior —
This data set represents the average population density, in number of people per square kilometer multiplied by 10 for the year 2000, compiled for every catchment of... -
Federal
Global Grid of Probabilities of Urban Expansion to 2030
National Aeronautics and Space Administration —
The Global Grid of Probabilities of Urban Expansion to 2030 presents spatially explicit probabilistic forecasts of global urban land cover change from 2000 to 2030 at... -
Federal
Demographics for US Census Tracts - 2012 (American Community Survey 2008-2012 Derived Summary Tables)
U.S. Environmental Protection Agency —
This map service displays data derived from the 2008-2012 American Community Survey (ACS). Values derived from the ACS and used for this map service include: Total... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for sandstone and carbonate rocks (gwava-dw_sscb)
Department of the Interior —
This data set represents the presence or absence of sandstone and carbonate rock aquifers in the conterminous United States. The data set was used as an input data... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for basalt and volcanic rocks (gwava-s_vrox)
Department of the Interior —
This data set represents the presence or absence of basalt and volcanic rocks in the conterminous United States. The data set was used as an input data layer for a... -
Federal
La Parguera, Puerto Rico (2001 - Present) and Guanica, Puerto Rico (2012) benthic habitat assessment and monitoring data: 2012
National Oceanic and Atmospheric Administration, Department of Commerce —
This fish and benthic composition database is the result of a multifaceted effort described below. The intent of this work is five fold: 1) To spatially characterize... -
Federal
Wildland Urban Interface: 1990 (Map Service)
Department of Agriculture —
Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 1990. The wildland-urban interface (WUI) is the area where houses... -
Federal
Wildland Urban Interface: 2000 (Map Service)
Department of Agriculture —
Downloads and additional Metadata. A tiled map service depicting wildland urban interface data for 2000. The wildland-urban interface (WUI) is the area where houses... -
Federal
Last of the Wild Project, Version 2, 2005 (LWP-2): Global Human Footprint Dataset (Geographic)
National Aeronautics and Space Administration —
The Global Human Footprint Dataset of the Last of the Wild Project, Version 2, 2005 (LWP-2) is the Human Influence Index (HII) normalized by biome and realm. The HII... -
Federal
Terrestrial Condition Assessment (TCA) Feral Pig Density (Map Service)
Department of Agriculture —
Data are derived from generalized linear models and model selection techniques using 129 estimates of population density of wild pigs (Sus scrofa) from 5 continents.... -
Federal
Last of the Wild Project, Version 3 (LWP-3): 2009 Human Footprint, 2018 Release
National Aeronautics and Space Administration —
The 2009 Human Footprint, 2018 Release provides a global map of the cumulative human pressure on the environment in 2009, at a spatial resolution of ~1 km. The human... -
Federal
Collection Series Information for the 2019 KML File,2010 Urban Areas (UA) within 2010 County and Equivalent, 1:500,000
U.S. Census Bureau, Department of Commerce —
The 2019 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically... -
Federal
Baseline assessment of the benthic communities of the Flower Garden Banks
National Oceanic and Atmospheric Administration, Department of Commerce —
The work developed baseline information on fish and benthic communities within the Flower Garden Banks National Marine Sanctuary (FGBNMS). Surveys employed diving,... -
Federal
St. Croix, USVI Benthic Composition Assessment and Monitoring Data (2002 - Present)
National Oceanic and Atmospheric Administration, Department of Commerce —
This fish and benthic composition database is the result of a multifaceted effort described below. The intent of this work is five fold: 1) To spatially characterize... -
Federal
Last of the Wild Project, Version 1, 2002 (LWP-1): Global Human Footprint Dataset (IGHP)
National Aeronautics and Space Administration —
The Global Human Footprint Dataset of the Last of the Wild Project, Version 1, 2002 (LWP-1) is the Human Influence Index (HII) normalized by biome and realm. The HII... -
Federal
Sea Otter Aerial Survey Data from Lower Cook Inlet and the Outer Kenai Peninsula, Alaska, 2002
Department of the Interior —
This dataset consists of three tables related to abundance and distribution of northern sea otters (Enhydra lutris kenyoni) in lower Cook Inlet and the outer Kenai... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for histosols (gwava-s_hist)
Department of the Interior —
This data set represents the amount of histosols soil taxonomic order, in percent, in the conterminous United States. The data set was used as an input data layer for... -
Federal
Collection Series Information File for the 2015 Cartographic Boundary File, Urban Area-State-County , 1:500,000
U.S. Census Bureau, Department of Commerce —
The 2015 cartographic boundary shapefiles are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File /...