Data and Tools

Science Datasets

The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.

Filter Total Items: 9,487
Date published: November 18, 2019

2019 Known and Probable Grizzly Bear Mortalities in the Greater Yellowstone Ecosystem

Identifying the locations and causes of grizzly bear mortality is another key component in understanding the dynamics of this population. Over 80% of all documented bear mortalities are human-caused. Tracking human-caused bear deaths helps define patterns and trends that can direct management programs designed to reduce bear mortality.

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Bankfull Hydraulic Geometry Related to Physiographic Divisions

This tabular data set contains information on bankfull depth, width and cross-sectional area for each NHDPlus version 2.1 data suite (NHDPlusv2) flowline (Moore and Dewald, 2016) for the conterminous United States. These data were created using regional regression equations outlined in Bieger and others (2015). The equations predict bankfull width, depth and cross-sectional area as a function...

Date published: November 18, 2019

Natural and managed components of the water-budget for 2010 for 43 HUC10s in the Apalachicola-Chattahoochee-Flint River Basin, Georgia, U.S.

A simple water budget includes precipitation, streamflow, change in storage, evapotranspiration, and residuals: P=Q + ET + ΔS + e. It is essential to include the managed component (i.e., the “human” component) to close the water budget and reduce the magnitude of the residuals from “natural” water budgets. Some of the largest components of...

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States:Lithology

This dataset contains generalized lithologic classes (rocktypes) as reassigned from the USGS state geologic map compilation for the conterminous United States (Anning and Ator, 2017; Schweitzer, 2011). Lithology was classified into 12 generalized categories and assigned to the catchments of the NHDPlusV2.1 network as a fraction of the unit within the catchment.

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Average Yearly Freshwater Withdrawals

This data set represents annual freshwater withdrawals averaged over the years 1995-2000 compiled for two spatial components of the NHDPlus version 2.1 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2.1 data suite by the unique...

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Mean Flow Path Distance to NHDPlus Version 2.1 Streams

This dataset describes mean flow path distance, in meters, to flowlines from every NHDPlus version 2.1 (NHDv2) flowline in every catchment. A National flow distance raster utilizes NHDPlus Version 2.1 flow direction rasters to compute a national flow path distance raster. For the purposes of this dataset, NHDPlus Version 2 catchments were overlaid to compute a mean flow path distance to...

Date published: November 18, 2019

Natural and managed components of the water-budget from 2008–2012 for 43 HUC10s in the Apalachicola-Chattahoochee-Flint River Basin, Georgia, U.S.

A simple water budget includes precipitation, streamflow, change in storage, evapotranspiration, and residuals: P=Q + ET + ΔS + e. It is essential to include the managed component (i.e., the “human” component) to close the water budget and reduce the magnitude of the residuals from “natural” water budgets. Some of the largest components of...

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Soil pH

This tabular data set represents the soil pH as processed from STATSGO2 database compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The source data was produced by the United States Geological Survey (Wieczorek, 2019). Soil...

Date published: November 18, 2019

Attributes for NHDPlus version 2.1 catchments and modified routing of upstream watersheds for the conterminous United States: Combination of landuse and geology.

This tabular data represents the area of combined landuse and surficial materials for the conterminous United States linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data are the National Land Cover Dataset (NLCD) representing 2011 ground conditions (Homer, 2013) , and the "Map database for surficial materials in the conterminous United States" produced by...

Date published: November 18, 2019

Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat: dataset of BBS data, ND, with habitat rankings

This dataset is North American Breeding Bird Survey bird-count data for the routes and stops in North Dakota, USA, in which ten mixed-grass-prairie-endemic species occurred, as well as the mean habitat-quality ranking scores derived from applying the Habitat Quality Module of the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) to spatial layers for landuse/landcover from the...

Date published: November 18, 2019

Attributes for NHDPlus version 2.1 catchments and modified routing of upstream watersheds for the conterminous United States: 2012 Percent farm land in conservation program.

This metadata record describes a computed ratio of county acres of farmland reported in agricultural conservation programs to the total acres of farmland reported for the county. Acres in conservation programs are for the 2012 time period, and reported by survey from the U.S. Department of Agriculture, Farm Field Survey. Acres of total farmland were used from the U.S. Department of Agriculture...

Date published: November 18, 2019

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Wet, Dry, and Total Deposition of Select Constituents from Community Multiscale Air Quality modeling system (CMAQ) for 2002 - 2011

This metadata record describes 10 annual Congestion Mitigation and Air Quality Improvement (CMAQ) Program variables ( kilograms per hectare) for 2012 ( Zhang and others, 2012, Schwede and others, 2014) compiled for two spatial components of the NHDPlus version 2.1 data suite hereto referred to as (NHDV2) for the conterminous United States; 1) individual reach catchments and 2) reach...