1,160 Works

Coral growth parameters and seawater chemistry from Kahekili, west Maui, Hawaii

Nancy G. Prouty, Kimberly Yates, Nathan Smiley & Christopher Gallagher
This data release contains time-series of seawater carbonate chemistry variables, including salinity, dissolved inorganic nutrients, pH, total alkalinity, and dissolved inorganic carbon, from sites along Kahekili Beach Park, Kaanapali, west Maui. It also contains data from coral cores collected from the shallow reef at Kahekili in July 2013 and analyzed for coral growth parameters (tissue thickness, growth rate, density, calcification rate, and bioerosion) and geochemical measurements (nitrogen isotopes).

Landsat Burned Area Essential Climate Variable products for the conterminous United States (1984 -2015)

Todd J. Hawbaker, Melanie K. Vanderhoof, Yen-Ju G. Beal, Joshua Takacs, Gail L. Schmidt, Jeff T. Falgout, Brad Williams, Nicole M. Brunner, Megan K. Caldwell, Joshua J. Picotte, Stephen M. Howard, Susan Stitt & John L. Dwyer
The U.S. Geological Survey (USGS) has developed and implemented an automated algorithm that identifies burned areas in temporally-dense time series of Landsat image stacks to produce the Landsat Burned Area Essential Climate Variable (BAECV) products. The algorithm makes use of predictors derived from individual Landsat scenes, lagged reference conditions, and change metrics between the scene and reference predictors. Outputs of the BAECV algorithm consist of burn probabilities for each Landsat scene, and annual composites of:...

ViTexOCR -- a script to extract text overlays from digital video

Evan T. Dailey
The ViTexOCR script presents a new method for extracting navigation data from videos with text overlays using optical character recognition (OCR) software. Over the past few decades, it was common for videos recorded during surveys to be overlaid with real-time geographic positioning satellite chyrons including latitude, longitude, date and time, as well as other ancillary data (such as speed, heading, or user input identifying fields). Embedding these data into videos provides them with utility and...

EAARL Coastal Topography?Northwest Florida, Post-Hurricane Katrina, 2005

Alexandra Fredericks, Christine J. Kranenburg & Kara J Doran
These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for a portion of northwest Florida. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) in September 2005, immediately following Hurricane Katrina landfall.

Groundwater discharge areas for the 14 hydrographic areas in the middle Humboldt River Basin, north-central Nevada

J. LaRue Smith, Eric Warmath & Rose L Medina
This data set contains polygons representing the groundwater discharge areas for the 14 hydrographic areas in the middle Humboldt River Basin, north-central Nevada.

FishTail, Indices and Supporting Data Characterizing the Current and Future Risk to Fish Habitat Degradation in the Northeast Climate Science Center Region

Wesley M. Daniel, Nick Sievert, Dana M. Infante, Craig Paukert, Jana S. Stewart, Joanna Whittier & Kyle Herreman
Human impacts occurring throughout the Northeast and Midwest United States, including urbanization, agriculture, and dams, have multiple effects on the regions streams which support economically valuable stream fishes. Changes in climate are expected to lead to additional impacts in stream habitats and fish assemblages in multiple ways, including changing stream water temperatures. To manage streams for current impacts and future changes, managers need region-wide information for decision-making and developing proactive management strategies. Our project met...

Minisparker seismic-reflection data of field activity S-07-11-SC: offshore San Diego, and Los Angeles Counties, southern California from 2011-06-08 to 2011-06-22

Ray W. Sliter, , Holly F. Ryan & Peter J. Triezenberg
This dataset includes raw and processed, high-resolution seismic-reflection data collected in 2011 to collect information on active offshore faults. The survey area is offshore southern California between Long Beach and San Diego. The data were collected aboard the U.S. Geological Survey R/V Parke Snavely. The seismic-reflection data were acquired using a SIG 2mille minisparker system. Subbottom acoustic penetration spanned tens to several hundreds of meters, variable by location and equipment type.

Data Collected in Support of the Longshore Water-Current Velocity and the Potential for Transport of Contaminants pilot study in Lake Erie from Walnut Creek to Presque Isle State Park Beaches, Erie, Pennsylvania

Elizabeth A. Hittle
This data release supports the following publication: Hittle, Elizabeth, 2017, Longshore Water-Current Velocity and the Potential for Transport of Contaminants: A Pilot Study in Lake Erie from Walnut Creek to Presque Isle State Park Beaches, Erie, Pennsylvania, June and August 2015: U.S. Geological Survey Open-File Report 20161206 126 p., https://doi.org/10.3133/ofr20161206 Data were collected in Lake Erie between Walnut Creek and Presque Isle State Park (PSIP) Beach 1 in June and August 2015 to support a...

SUTRA model used to evaluate the role of uplift and erosion in the persistence of saline groundwater in the shallow subsurface

Richard M. Yager, Clifford I Voss & Ward E. Sandford
A modified version of the three-dimensional, variable-density solute-transport model (SUTRA) was developed to simulate the effects of erosion and uplift on the flushing of brine with meteoric water in Permian through Mississippian rocks of the Appalachian Plateaus. The model was run in 10-Ma transient simulations for a range of values of permeability and anisotropy. Model results indicate that the depth of shallow Paleozoic brine in the Appalachian Plateaus is controlled by the flushing rate of...

Human-associated indicator bacteria and human specific virus loads, sample volumes, and drainage areas for six Menomonee River Watershed sampling locations

Peter Lenaker, Steven Corsi, Hayley A. Templar, Sandra L. McLellan, Mark A. Borchardt, Deb K. Dila, Susan K. Spencer & Austin K. Baldwin
Human-associated indicator bacteria and human specific viruses in the Menomonee River watershed in Milwaukee, WI were investigated from April 2009 to March 2011 at six sampling locations within the watershed. We used concentration and water volume data from runoff-event and low-flow periods to compute loads for each sample collected, and subsequently used those loads, and drainage area from each defined sub-watershed, to compute yield contributions of human-associated bacteria and human specific viruses for each of...

Bathymetry and topography data from the Elwha River delta, Washington, May 2011

Andrew Stevens, Guy Gelfenbaum, , Ian M. Miller & Heather M. Weiner
Two dams on the Elwha River, Washington State, USA trapped over 20 million cubic meters of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an...

Bathymetry and topography data from the Elwha River delta, Washington, May 2012

Andrew Stevens, Guy Gelfenbaum, , Ian M. Miller & Heather M. Weiner
Two dams on the Elwha River, Washington State, USA trapped over 20 million cubic meters of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an...

Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, August 2012

Andrew Stevens, Guy Gelfenbaum, , Ian M. Miller & Heather M. Weiner
Two dams on the Elwha River, Washington State, USA trapped over 20 million cubic meters of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an...

Data release for journal article \"Atmospheric mercury deposition to forests in the eastern USA\"

Martin R. Risch
Data for mercury concentrations in annual litterfall samples and associated litterfall mass will be released. The litterfall samples were collected at selected National Atmospheric Deposition Program sites in 2007-2009 and 2012-2014.

Hurricane Sandy Beach Response and Recovery at Fire Island, New York: Shoreline, Beach Profile Data, and Breach Shoreline Data: October 2012 to June 2016

Rachel E Henderson, Cheryl J Hapke, Owen T Brenner & Billy J Reynolds
Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (months�years�decades�centuries). In response to Hurricane Sandy (October 2012), this effort continued with the intention of resolving storm impacts, post-storm beach response, and recovery. The day before Hurricane Sandy...

Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, September 2013

Andrew Stevens, Guy Gelfenbaum, , Ian M. Miller & Heather M. Weiner
Two dams on the Elwha River, Washington State, USA trapped over 20 million cubic meters of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an...

Thresh - Software for Tracking Rainfall Thresholds for Landslide and Debris Flow Occurrence, Code Repository

Rex L Baum, Jacob C. Vigil & Sarah J. Fischer
The precipitation tracking program, thresh, is a Fortran program designed for computing various measures of precipitation for comparison against established or trial thresholds for landslide occurrence. The program computes cumulative precipitation and precipitation intensity and duration and compares them to thresholds to identify periods of threshold exceedance for use in landslide early warning. This command-line program is used in conjunction with Python scripts and shell scripts to prepare input files and visualize results.

Standardization and Application of an Index of Community Integrity for Waterbirds in the Chesapeake Bay

Diann J Prosser
In recent decades, there has been increasing interest in the application of ecological indices to assess ecosystem condition in response to anthropogenic activities. DeLuca et al. (2008) developed an Index of Waterbird Community Integrity (IWCI) to evaluate breeding waterbird response to anthropogenic activities in the Chesapeake Bay, USA. As we attempted to apply this index to a study in the same region, we discovered the need to add more species; however, the scoring criteria were...

Soil Physical and Hydraulic Properties in the Area Affected by the 2011 Las Conchas Fire in New Mexico

Brian A Ebel & Orlando Romero
This product releases data on soil physical and hydraulic properties in the area affected by the 2011 Las Conchas Fire in New Mexico, USA. Soil samples were collected in the summer of 2015 to assess the state of the watershed following the 2011 wildfire. Data include soil-hydraulic properties of field-saturated hydraulic conductivity and sorptivity from tension infiltrometer measurements on soil cores. Soil physical properties include bulk density, as-sampled volumetric soil-water content, and saturated volumetric soil-water...

GSFLOW model simulations used to evaluate the impact of irrigated agriculture on surface water groundwater interaction

Hedeff I. Essaid, Rodney Caldwell & Jim Constantz
Watershed-scale coupled surface water (SW) groundwater (GW) flow modeling was used to examine changes in streamflow and SW GW interaction resulting from irrigation and associated SW diversions and GW pumping. The U.S. Geological Survey (USGS) model GSFLOW, an integration of the USGS Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW), was utilized for this effort. Processes represented in the model include daily rain, snowfall, snowmelt, streamflow, surface runoff, interflow, infiltration, soil-zone evapotranspiration...

Whole-Rock Major-Major-Element Chemistry Data for Granitic Rocks on the Kern Plateau, Southern Sierra Nevada, California

Michael F. Diggles & Diane Clemens-Knott
In the summers of 1982 through 1985, the U.S. Geological Survey conducted geologic studies Bureau of Land Management Wilderness Study Areas on the Kern Plateau as well as the U.S. Forest Service South Sierra Wilderness and South Sierra Roadless Area. These study areas are underlain mostly by granitic rocks of the Sierra Nevada batholith. In support of geologic mapping and mineral-resource assessment, 74 samples were analyzed for major-element oxides (SiO2, Al2O3, Fe Total, MgO, CaO,...

Bridge Scour Countermeasure Assessment Data for Select Bridges in the United States

Taylor J. Dudunake, Richard J. Huizinga & Ryan L. Fosness
Scouring of streambed material surrounding bridge structures is a leading cause of bridge failure in the United States. Damages resulting from bridge failure oftentimes lead to financial burdens and loss of life. To date, there has been no comprehensive evaluation of the current (2016) effectiveness of the guidance or overall long-term performance of bridge-scour countermeasures provided in the Federal Highway Administration, Hydraulic Engineering Circular No. 23, Bridge Scour and Stream Instability Countermeasures. To that end,...

Public-Supply Water Use in the Cumberland River Watershed in 2010 and Projections of Public-Supply Water Use to 2040

John A Robinson
Adequate water resources are vital for municipal needs in the Cumberland River watershed. As a result of continuing population growth, moderate to extreme droughts and floods, demands for competing water resources, and aging infrastructure, the evaluation of ongoing water-resources issues has become increasingly important to Federal, State, and local water-resources managers. In order to assist local decision makers in the watershed, the U.S. Geological Survey (USGS) began a study in 2013 to document groundwater and...

Carbon dioxide injected under-ice to enhance winterkill of invasive carps: Data

Aaron R Cupp & Jon J Amberg
These datasets include data that was used to evaluate the efficacy of carbon dioxide (CO2) injected under-ice as a tool for reducing the overwinter survival of invasive carps.

Water level measurements collected in West Falmouth Harbor, MA, 2016: U.S. Geological Survey data release

Christopher R Sherwood, Steven E Suttles, Sandra M. Brosnahan & Ellyn T Montgomery
Water-level gauges were deployed at two sites in West Falmouth Harbor between May and October 2016. Two sequential deployments were required to provide measurements for the entire period. One gauge was mounted under the town-owned West Falmouth boat dock and the other on the private Associates dock near the mouth of the Harbor. Each gauge supported two pressure sensors mounted in a stilling well to damp wave motions. The stilling wells were 4-inch diameter PVC...

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