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: 9,562
Date published: March 21, 2016

EAARL-B Topography—Big Thicket National Preserve: Little Pine Island Bayou Corridor Unit, Texas, 2014

A bare-earth topography Digital Elevation Model (DEM) mosaic for the Little Pine Island Bayou Corridor Unit of Big Thicket National Preserve in Texas was produced from remotely sensed, geographically referenced elevation measurements collected on January 15, 21, 22, 26, and 30, 2014 by the U.S. Geological Survey, in cooperation with the National Park Service - Gulf Coast Network. Elevation...

Date published: March 20, 2016

Oceanographic and Water-Quality Measurements in Barnegat Bay, New Jersey, 2014-2015

A bottom platform with an upward-looking velocimeter was paired with mid-water pole-mounted water quality sensors at each site for the Aug 2014 to Jan 2015 deployment. Water quality sensors were mounted on a bottom landing platform with an upward-looking velocimeter for the Apr-Jul 2015 deployment. The water quality sensor deployments for Aug 2014 to Jan 2015 were conducted in 2 segments

Date published: March 20, 2016

Oceanographic and Water Quality Measurements in two Southern California Coastal Wetlands, 2013-2014

The objective was to compare an urbanized wetland with limited sediment supply (Seal Beach) with a less modified marsh (Pt. Mugu) with fluvial sediment supply. Marine temperature, conductivity, pressure sensors, optical turbidity sensors and acoustic velocity meters were deployed on bottom platforms to quantify the conditions in the water column.

Date published: March 17, 2016

Delineation of Water Bodies in Emergent Wetlands in Coastal New Jersey

Hurricane Sandy, which made landfall on October 29, 2012, near Brigantine, New Jersey, had a significant impact on coastal New Jersey, including the large areas of emergent wetlands at Edwin B. Forsythe National Wildlife Refuge (NWR) and the Barnegat Bay region. In response to Hurricane Sandy, U.S. Geological Survey (USGS) has undertaken several projects to assess the impacts of the storm and...

Date published: March 17, 2016

Langelier Saturation Indices Computed for U.S. Groundwater, 1991-2015; Water Well Data

The occurrence of metals, such as lead and copper, in household drinking supplies can often be a result of the corrosion of pipes and joints in water distribution systems. One measure of the potential for water to cause corrosion is the Langelier Saturation Index (LSI) (Langelier, 1936). The LSI is a measure of the potential for water to deposit a mineral layer (scale) within a water...

Attribution: Water Resources
Date published: March 17, 2016

National Assessment of Hurricane-Induced Coastal Erosion Hazards: Gulf of Mexico Update

This dataset contains information on the probabilities of hurricane-induced erosion (collision, inundation and overwash) for each 1-km section of the Gulf of Mexico coast for category 1-5 hurricanes. The analysis is based on a storm-impact scaling model that uses observations of beach morphology combined with sophisticated hydrodynamic models to predict how the coast will respond to the direct...

Date published: March 17, 2016

Langelier Saturation Indices Computed for U.S. Groundwater, 1991-2015; Characteristic Values for States

The occurrence of metals, such as lead and copper, in household drinking supplies can often be a result of the corrosion of pipes and joints in water distribution systems. One measure of the potential for water to cause corrosion is the Langelier Saturation Index (LSI) (Langelier, 1936). The LSI is a measure of the potential for water to deposit a mineral layer (scale) within a water...

Date published: March 17, 2016

Delineation of Water Bodies in Emergent Wetlands in Coastal New Jersey

Hurricane Sandy, which made landfall on October 29, 2012, near Brigantine, New Jersey, had a significant impact on coastal New Jersey, including the large areas of emergent wetlands at Edwin B. Forsythe National Wildlife Refuge (NWR) and the Barnegat Bay region. In response to Hurricane Sandy, U.S. Geological Survey (USGS) has undertaken several projects to assess the impacts of the storm and...

Date published: March 16, 2016

Groundwater Quality Data from the National Water Quality Assessment Project, May 2012 through December 2013: data tables and metadata files

Groundwater-quality data were collected from 748 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program from May 2012 through December 2013. The data were collected from four types of well networks: principal aquifer study networks, which assess the quality of groundwater used for public water supply; land-use study networks...

Date published: March 16, 2016

Absolute-gravity data from the 2014 Minute 319 Pulse Flow in the Colorado River Delta

Data are absolute-gravity observations collected using an A-10 absolute gravimeter.

Date published: March 16, 2016

Raw gravity data from the 2014 Minute 319 Pulse Flow in the Colorado River Delta

Data are raw data files output by the Burris gravimeter PDA. Files include the Earth tide correction used in the UltraGrav software.