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: 8,968
Date published: September 9, 2019

Wet atmospheric nitrogen deposition data detrended to 2002

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in Tennessee streams. These data support the publication containing the Tennessee SPARROW models results (Hoos and others, 2019) and include model input used in the South Atlantic-Gulf Drainages and Tennessee...

Date published: September 9, 2019

Natural and managed components of the water-budget from 2008–2012 for 43 HUC10s in the Apalachicola-Chatahoochie-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: September 9, 2019

Coosa River Bank Topography and Comparisons at Walter Bouldin Dam sites WB101 and WB106, near Wetumpka, Alabama, November 2014 - July 2017

These datasets contain XYZ locations and other attributes of points from topographic bank surveys of sites WB101 and WB106 downstream from Walter Bouldin Dam near Wetumpka, Alabama, from November 20, 2014, through July 20, 2017. Topographic data were collected using a motion-compensated LiDAR (MC-LiDAR) system mounted on a marine survey vessel equipped with an inertial navigation system (INS...

Date published: September 9, 2019

Regional Hydraulic Geometry Characteristics of Stream Channels in the Ouachita Mountains of Arkansas

Seventeen streamflow-gaging stations, operated by the U.S. Geological Survey and distributed across the Ouachita Mountains of Arkansas and Oklahoma were selected for analysis. Regional hydraulic geometry curves relating drainage area to bankfull dimensions -- cross-sectional area, top width, mean depth, and streamflow -- were developed from data collected at the selected streamflow-gaging...

Date published: September 9, 2019

Erosion Monitoring along the Coosa River, Alabama, using Terrestrial Light Detection and Ranging (T-LiDAR) Technology, 2014-2017

These datasets contain XYZ locations and other attributes of points from topographic bank surveys at six sites downstream from three dams on the Coosa River in Alabama, from October 2014 through July 2017. At the four sites downstream from H. Neely Henry and Walter Bouldin Dams, topographic data were collected using a motion-compensated LiDAR (MC-LiDAR) system mounted on a marine survey vessel...

Date published: September 9, 2019

Ecological flow analyses results: streamflow characteristics and predicted fish responses to simulated surface water withdrawals and minimum flow levels within the Tennessee River and Cumberland River basins.

This data release contains input data files (R scripts and supporting data files) and results tables associated with analyses that describe the predicted effects of surface-water withdrawal scenarios on specific stream flow characteristics (SFC), changes in fish species richness, and maximum allowable withdrawal (MAW) thresholds from stream sites within the Tennessee and Cumberland River...

Date published: September 9, 2019

4) Site information and photos

Seventeen streamflow-gaging stations, operated by the U.S. Geological Survey and distributed across the Ouachita Mountains of Arkansas and Oklahoma were selected for analysis. Regional hydraulic geometry curves relating drainage area to bankfull dimensions: cross-sectional area, top width, mean depth, and discharge, were developed from data collected at the selected streamflow-gaging stations...

Date published: September 9, 2019

3) Streambed particle data

Seventeen streamflow-gaging stations, operated by the U.S. Geological Survey and distributed across the Ouachita Mountains of Arkansas and Oklahoma were selected for analysis. Bed material sampling was conducted to obtain information on the particle-size distributions of the streambed materials and to determine the shapes of the individual particles comprising the streambeds. Information on...

Date published: September 9, 2019

Geophysical Surveys at Lake Poinsett Dam, Poinsett County, Arkansas

Lake Poinsett is a 260-hectare (640 acres) lake located on Crowley’s Ridge in northeastern Arkansas, approximately 6 km southeast of Harrisburg, Arkansas within Poinsett County. The lake was built for recreation by the Arkansas Highway Department in 1960 by constructing a roughly 800-meter dam across the southern boundary of the Distress Creek watershed. The dam is currently operated...

Date published: September 9, 2019

Oxbow Lake Study Area

Nutrient and phytoplankton data indicate poor environmental health in four oxbow lakes in central Louisiana suggesting that long-term agriculture practices and increases in shoreline development have accelerated eutrophication. Surface-water quality and phytoplankton indicators of eutrophication were examined at Lake Bruin, Lake St. John, Lake St. Joseph, and False River Lake along an...

Date published: September 9, 2019

Digitized Contour from Georeferenced plate 2007 from "Potentiometric Surface in the Sparta-Memphis Aquifer of the Mississippi Embayment, Spring 2007" (Shrader, 2008)

The most widely used aquifer for industry and public supply in the Mississippi embayment in Arkansas, Louisiana, Mississippi, and Tennessee is the Sparta-Memphis aquifer. Decades of pumping from the Sparta-Memphis aquifer have affected ground-water levels throughout the Mississippi embayment. Regional assessments of water-level data from the aquifer are important to document regional water-...

Date published: September 9, 2019

Digitized Contours from Georeferenced Plate 2001 from "Status of water levels and selected water-quality conditions in the Sparta-Memphis aquifer in Arkansas and the Sparta aquifer in Louisiana, spring-summer 2001" (Schrader, 2004)

During the spring of 2001, water levels were measured in 427 wells in the Sparta-Memphis aquifer in Arkansas and the Sparta aquifer in Louisiana. Water-quality samples were collected for temperature and specific-conductance measurements during the spring and summer of 2001 from 150 wells in Arkansas in the Sparta-Memphis aquifer. Dissolved chloride samples were collected and analyzed for 87 of...