344 datasets found
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Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Average Annual Water Balance Variables over the Period of Record, 2000-2014
Department of the Interior —
This tabular data set represents annual water balance variables as described in Wolock and McCabe (2017) averaged over the years 2000 through 2014, compiled for the... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Average Annual Runoff (mm) from McCabe and Wolock's Runoff Model 1951-2000
Department of the Interior —
This data set represents the average annual runoff (mm) from McCabe and Wolock's Runoff Model 1951-2000 value compiled for two spatial components of the NHDPlus... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Average Elevation of Water Table Relative to Land Surface
Department of the Interior —
This tabular data set represents average depth to water table relative to the land surface(meters) compiled for two spatial components of the NHDPlus version 2 data... -
Federal
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Contact Time
Department of the Interior —
This tabular data set represents contact time, the length of time it takes for water to drain along subsurface flow paths to the stream, compiled for two spatial... -
Federal
Red Alder Basal Area, by Stream Reach, for the Pacific Northwest
Department of the Interior —
Red alder (Alnus rubra) are a common component of forests in Western Oregon and Washington. This file provides an estimate of red alder basal area in western Oregon... -
Federal
Nonroad developed land in the United States Pacific Northwest for 2001 summarized for NHDPlus v2 catchments
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the area of non-road developed land within each incremental watershed delineated... -
Federal
Percent of Agriculture Land Subject to Select National Resource Inventory Conservation Practices, 2000-2012
Department of the Interior —
This metadata record describes 26 30-meter raster data sets that estimate the percent of agricultural land that may be subject to select conservation practices for... -
Federal
Ecology_metadata_output
Department of the Interior —
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA)... -
Federal
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1WS
Department of the Interior —
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United... -
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 Hortonian overland flow (gwava-dw_hor)
Department of the Interior —
This data set represents infiltration excess overland flow estimated by TOPMODEL, in percent of streamflow, in the conterminous United States. The data set was used... -
Federal
Ecology_metadata_input
Department of the Interior —
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA)... -
Federal
Datasets from Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January through December 2016, and Previously Unpublished Data from 2013 to 2015
Department of the Interior —
Groundwater-quality data were collected from 648 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Artificial Drainage (1992) and Irrigation Types (1997)
Department of the Interior —
This tabular dataset represents the estimated area of artificial drainage for the year 1992 and irrigation types for the year 1997 compiled for every catchment of... -
Federal
Attributes for NHDPlus Version 2.1 Reach Catchments and Modified-Routing Upstream Watersheds for the Conterminous United States: Monthly Average Precipitation (millimeters) from 1945 - 2015
Department of the Interior —
This tabular data set represents monthly average precipitation values (millimeters) described in Wolock and McCabe (2018), compiled for the NHDPlus version 2 data... -
Federal
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 - 2012
Department of the Interior —
This metadata record describes 19 annual Congestion Mitigation and Air Quality Improvement (CMAQ) Program variables ( kilograms per hectare) for each year between... -
Federal
National Land Cover Database 2001 (NLCD01) Tile 3, Southwest United States: NLCD01_3
Department of the Interior —
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to... -
Federal
Data for timescales of water-quality change in a karst aquifer, south-central Texas
Department of the Interior —
Continuous monitoring and discrete water-quality sampling were coupled in a karst aquifer to assess drivers and timescales of water-quality change. Water-quality data... -
Federal
Data for Groundwater-Quality and Select Quality-Control Data for the Colorado Plateaus Principal Aquifer
Department of the Interior —
Groundwater samples were collected from 60 public supply wells in the Colorado Plateaus principal aquifer. Water quality evaluations of groundwater for drinking water... -
Federal
Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Bedrock Geology
Department of the Interior —
This data set represents the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source... -
Federal
Land Use on the Island of Oahu, Hawaii, 1998
Department of the Interior —
This is a vector GIS coverage (ESRI ArcInfo format) of the land use of the island of Oahu, 1998, derived from multiple sources of digital orthophotos.
344 datasets found