536 datasets found
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Federal
Vibracore CT scans from the San Lorenzo River
Department of the Interior —
This data release contains information on computed tomography (CT) images of a vibracore that was collected by the U.S. Geological Survey in 2019. A site next to the... -
Federal
Normalized Foraminiferal Data for Chincoteague Bay and the Marshes of Assateague Island and the Adjacent Vicinity, Maryland and Virginia-Spring 2014
Department of the Interior —
Foraminiferal samples were collected from Chincoteague Bay, Newport Bay, and Tom’s Cove as well as the marshes on the back-barrier side of Assateague Island and the... -
Federal
Rate of shoreline change of marsh units in north shore Long Island salt marsh complex, New York
Department of the Interior —
This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, New York. Metrics for resiliency, including... -
Federal
Side-scan Sonar Data, 2014-2015, Gateway National Recreation Area
Department of the Interior —
The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900... -
Federal
Hydrogeomorphic data along transitioning Coastal Plain rivers (Mattaponi and Pamunkey Rivers): implications for a rising sea level
Department of the Interior —
Data on changing hydrogeomorphic characteristics and suspended sediment availability along river gradients from nontidal through tidal freshwater to oligohaline... -
Federal
Specific-Capacity Based Horizontal Hydraulic Conductivity of Coarse-Grained Sediment within the Glacial Deposits
Department of the Interior —
The glacial aquifer system of the United States encompasses all or parts of 25 states and is the most widely used supply of drinking water in the Nation (Maupin and... -
Federal
Rate of shoreline change of marsh units in Hudson Valley and New York City salt marsh complex, New York
Department of the Interior —
This data release contains coastal wetland synthesis products for the geographic region of Hudson Valley and New York City, New York. Metrics for resiliency,... -
Federal
Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(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
Digital elevation model of South Fork Toutle River, Mount St. Helens, based on June–July 1980 airborne photogrammetry
Department of the Interior —
The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. The... -
Federal
Streambed sediment data for Missouri and Niobrara Rivers, Nebraska and South Dakota, 2015--List and brief description of samples collected for exploratory proppant testing
Department of the Interior —
Deltaic sand deposits at the head of Lewis and Clark Lake, Nebraska-South Dakota were investigated for suitability for use as a proppant feedstock resource in... -
Federal
Threshold friction velocities for aeolian transport of river-sourced sand, with related moisture content, grain size, topographic, and wind data from Lees Ferry, Arizona
Department of the Interior —
These data were compiled to investigate the control of drying on the aeolian transport of river-sourced sand. Objectives of our study were to to examine aeolian... -
Federal
Data supporting the study of increasing floodplain connectivity through urban stream restoration increases nutrient and sediment retention, 2012-2013
Department of the Interior —
This data set presents ecosystem geomorphic and soil attributes, sediment and nutrient loading rates, and rates of nutrient biogeochemistry processes, including... -
Federal
Dissolved Oxygen, temperature, particle-size distribution, and groundwater flux in the nearshore of Lake Ozette, WA, October 2018 to May 2019
Department of the Interior —
Particle-size data collected of the upper 25 cm of substrate was collected at 12 sites in October 2018 and May 2019 at Olsen's Beach in Lake Ozette, Clallam County,... -
Federal
JPEG Images of Cores Collected in August 2006 in the Nauset Marsh Area of Cape Cod, Massachusetts
Department of the Interior —
In order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean, geophysical surveys, geophysical probing, submarine groundwater... -
Federal
Sedimentary Data Collected in September 2016 From Old Tampa Bay, Florida (U.S. Geological Survey Field Activity Number 2016–350–FA)
Department of the Interior —
The toxic dinoflagellate Pyrodinium bahamense (P. bahamense) produces recurring, persistent summer algal blooms in Old Tampa Bay, Florida, which degrade water quality... -
Federal
Textural Data from the Continental Margin Program (HATHAWAY71 shapefile)
Department of the Interior —
This data set contains sediment grain size and textural information from the Continental Margin Program. The program was a joint collaboration between the U.S.... -
Federal
Sediment chemistry and sediment toxicity in wadable streams across the Midwestern United States, 2013.
Department of the Interior —
These data present chemistry and toxicity results from freshwater stream sediments collected from 99 wadable stream sites across eleven states in the Midwestern U.S.... -
Federal
Ground-truthing images, 2014-2015, Gateway National Recreation Area
Department of the Interior —
Collection of benthic infauna and epifauna used a 0.04 m2 Ted Young Modified Van Veen grab. Three replicate benthic samples were collected at 23 sites to total 69... -
Federal
Predictions of floodplain and streambank geomorphic change and flux, streambed characteristics, and catchment inputs and exports of sediment and nutrients for stream reaches in the Chesapeake Bay and Delaware River watersheds
Department of the Interior —
Predictions from statistical modeling of floodplains, streambanks, and streambeds in the Chesapeake Bay and Delaware River watersheds of the U.S. Mid-Atlantic. Random... -
Federal
Arroyo de los Pinos - Left Sampler One Minute Acoustic Impact Pulse 1024x Time Series Data
Department of the Interior —
Channel 10 (1024x) amplification from the left impact sensor
536 datasets found