259 datasets found for "Population Density"
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Federal
Digital data sets describing population density in the conterminous US
Department of the Interior —
Grid of population density in the conterminous United States at a resolution of one kilometer. The grid was converted from an ASCII file obtained from the Consortium... -
Federal
Washington White-Tailed Deer Selkirk Corridors
Department of the Interior —
The Selkirk White-tailed Deer Management Zone (WDMZ) is home to the largest population of white-tailed deer in the state and consists of seven Game Management Units... -
Federal
Changes in anthropogenic influences on streams and rivers in the conterminous U.S. over the last 40 years, derived for 16 data themes
Department of the Interior —
This product consists of time-series calculations of anthropogenic characteristics derived for 16 data themes for multiple scales covering the conterminous United... -
Federal
Predictions of PFAS Occurrence in Groundwater at the Depth of Drinking Water Supplies in the Conterminous United States: Data and Model Archive
Department of the Interior —
An extreme gradient boosting ensemble tree model predicting per- and polyfluoroalkyl substances (PFAS) occurrence in groundwater at the depths typical of the bottom... -
Federal
Lake Erie Fish Community Data, 2013-2024
Department of the Interior —
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision... -
Federal
Biological and physical data for zebra mussel (Dreissena polymorpha) veligers collected from a coupled lake-stream ecosystem in north Texas, 2012-2014
Department of the Interior —
Dispersal, establishment, and spread of aquatic invasive species such as the zebra mussel (Dreissena polymorpha) can be influenced by riverine velocities and... -
Federal
Kelp and sea urchin data obtained by SCUBA at shallow nearshore sites along the North Pacific Rim from Bering Island to Southeast Alaska obtained over multiple decades beginning in 1987
Department of the Interior —
Between 1987 and 2021, over 600 nearshore rocky bottom sites were sampled by scuba at 38 locations on the north Pacific Rim ranging from Bering Island, along the... -
Federal
Annual California Sea Otter Census: 2019 Census Summary Shapefile
Department of the Interior —
The GIS shapefile Census_sum_2019 provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra... -
Federal
U.S. Geological Survey - Gap Analysis Project Species Habitat Maps CONUS_2001 NGDA
Department of the Interior —
Gap Analysis Project (GAP) habitat maps are predictions of the spatial distribution of suitable environmental and land cover conditions within the United States for... -
Federal
Grizzly Bear Space Use in the US Northern Rocky Mountains (ver. 3.0, July 2024)
Department of the Interior —
Over the past two centuries, persecution and habitat loss caused grizzly bears (Ursus arctos) to decline from a population of approximately 50,000 individuals to only... -
Federal
Data Supporting Walrus Areas of Use in the Chukchi Sea During Sparse Sea Ice Cover
Department of the Interior —
The dataset consists of geospatial files depicting the estimated June-to-November distribution of walrus foraging and occupancy during a four year period of sparse... -
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
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
U.S. Geological Survey GAGES-II time series data from consistent sources of land use, water use, agriculture, timber activities, dam removals, and other historical anthropogenic influences
Department of the Interior —
This product is a series of ten datasets containing tabular data from historical time series sources for the 9,067 conterminous United States sites in the U.S.... -
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
2010 County and City-Level Water-Use Data and Associated Explanatory Variables
Department of the Interior —
This data release contains the input-data files and R scripts associated with the analysis presented in [citation of manuscript]. The spatial extent of the data is... -
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
Annual California Sea Otter Census—1985-2014 Spring Census Summary
Department of the Interior —
This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring...
259 datasets found for "Population Density"