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These tables document grain-size distributions of sediment collected as part of a study on the geomorphic impacts of the March 2014 State Route 530 Landslide near Oso, Washington. This includes samples of material from the landslide deposit itself, covering a range of distinct facies present in the landslide, and samples of sand and gravel at various locations along the North Fork Stillaguamish River both upstream and downstream of the landslide. Grain size distributions of landslide material were distinguished between outwash material, till, and lacustrine material, distinct facies all present in the landslide deposit. Material coarser than 4-16 mm (sample dependent) was sieved and weighed in the field, and fine...
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Brackish groundwater (BGW), defined for this assessment as having a dissolved-solids concentration between 1,000 and 10,000 milligrams per liter, is an unconventional source of water that may offer a partial solution to current (2016) and future water challenges. In support of the National Water Census, the U.S. Geological Survey has completed a BGW assessment to gain a better understanding of the occurrence and characteristics of BGW resources of the United States as an alternative source of water. Analyses completed as part of this assessment relied on previously collected data from multiple sources, and no new data were collected. One of the most important contributions of this assessment was the creation of...
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The U.S. Geological Survey, in cooperation with the Virginia Department of Environmental Quality, has quantified several measures of rating stability and the frequency and magnitude of changes to ratings through time for 174 real-time continuous streamgages active in Virginia as of September 30, 2013. Alternative flow (AltFlow) tables were developed as a method of estimating provisional flow data. They were constructed for periods with complete records of shifts and ratings between October 1, 1990 and September 30, 2013. Alternate flows consist of Qsame, the flow value from the shifted rating table used to compute the daily flow value at the time of the most recent flow measurement that corresponds to the gage height...
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The United States Geological Survey’s (USGS) SPAtially Referenced Regressions On Watershed attributes (SPARROW) model was developed to aid in the interpretation of monitoring data and simulate water-quality conditions in streams across large spatial scales. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based streamflow...
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The water-quality data available here has been collected as part of a collaborative monitoring project between the US Geological Survey, Yukon River Inter-Tribal Watershed Council, and Yukon River Basin communities known as the Indigenous Observation Network. Since 2006 the USGS National Research Program (NRP) and Yukon River Inter-Tribal Watershed Council (YRITWC) have been partnering to collect water-quality samples from the Yukon River and tributaries with the assistance of trained community members living in the Yukon River Basin. The YRITWC provides support for this project through sample collection, sample processing and shipment logistics with communities and to the USGS. The USGS provides water analysis...
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Streamflow and phosphorus concentrations were monitored in the Assabet River in central Massachusetts in order to evaluate concentrations and loads in the river before, during, and after changes in the amount of total phosphorus that was discharged to the river from three wastewater-treatment plants. At four locations the U.S. Geological Survey collected weekly flow-proportional, composite samples of water from the Assabet River for analysis of concentrations of total phosphorus and orthophosphate. Streamflow and concentration data were used to estimate total phosphorus and orthophosphate loads in the river and compare them with total phosphorus load outputs from three wastewater-treatment plants. Data were collected...
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This data release contains time series data of suspended-sediment concentration and loads determined at five USGS streamgages in the Nooksack River Basin, Whatcom County, Washington: Nooksack River at Ferndale (12213100), Nooksack River at North Cedarville (12210700), North Fork Nooksack River below Cascade Creek near Glacier (12205000 ), Middle Fork Nooksack River near Deming (12208000), and South Fork Nooksack River at Saxon Road (12210000). For each streamgage, a 15- or 60-minute time series of suspended sediment concentration are computed from turbidity-based regression equations, and daily suspended sediment loads are calculated as the product of suspended sediment concentration and discharge multiplied by...
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As part of the Hurricane Sandy Science Plan, the U.S. Geological Survey is expanding National Assessment of Coastal Change Hazards and forecast products to coastal wetlands. The intent is to provide federal, state, and local managers with tools to estimate the vulnerability of coastal wetlands to various factors and to evaluate their ecosystem service potential. For this purpose, the response and resilience of coastal wetlands to physical factors need to be assessed in terms of the ensuing change to their vulnerability and ecosystem services. Edwin B. Forsythe National Wildlife Refuge (EBFNWR), New Jersey, was selected as a pilot study area. As part of this data synthesis effort, hydrodynamic and sediment transport...
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Monitoring the chloride (Cl) flux in the major rivers draining Yellowstone National Park (YNP) provides a holistic view of the thermal output from the underlying magma reservoir, and abrupt fluctuations in the Cl flux may signify changes in hydrothermal activity. The U.S. Geological Survey (USGS) and the National Park Service (NPS) have collaborated on Cl flux monitoring of the major rivers since the 1970s. In the past, researchers collected water samples from the major rivers in YNP, but funding restrictions, winter conditions, and the great distances between sites limited the number of samples collected annually. Beginning in 2010, specific conductance, which is relatively easy to measure and can be automated,...
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This data release is comprised of a set of six time travel map shapefiles (two tsunami evacuation zones and three travel times) and three population exposure by travel time tables (residents, employees, and hotel visitors). The travel time map was generated using the Pedestrian Evacuation Analyst model from the USGS (https://geography.wr.usgs.gov/science/vulnerability/tools.html). The travel time analysis uses ESRI's Path Distance tool to find the shortest distance across a cost surface from any point in the hazard zone to a safe zone. This cost analysis considers the direction of movement and assigns a higher cost to steeper slopes, based on a table contained within the model. The analysis also adds in the energy...
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This release contains geophysical data from the Kuparuk aufeis associated with the manuscript "Seasonal thaw dynamics of an aufeis feature inferred from surface geophysical methods." Data were collected in two campaigns in September 2016 and April 2017 with the purpose of investigating freeze-thaw dynamics below the aufeis feature during maximally frozen and maximally thawed conditions. Ground penetrating radar common offset data from both campaigns (160MHz and 80MHz) is presented, including interpreted depths to interfaces (permafrost, ice-frozen ground interface, and talik surface). Surface nuclear magnetic resonance data and inverse results are also included from April 2017 as well as interpreted talik thicknesses....
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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 eutrophication gradient. These oxbow lakes are cut-off meanders of the Mississippi River that do not receive overbank flow from the river due to the levee system built in the early twentieth century. Oxbows have formed at various times in the last few hundred years as the Mississippi River carves a more efficient hydrologic route to...
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Water samples were collected by the USGS National Water Quality Program (NWQP) Southeastern Stream Quality Assessment (SESQA) from 76 perennial, wadeable (less than 10 m width and 1 m depth at base-flow) headwater stream sites in watersheds with varying degrees of urban land use in four states. Dataset includes sample site locations and information, water sample nutrient concentrations and statistics analyses, and corresponding watershed land-use-land-cover data and data dictionary.
Snake fungal disease (SFD) is an emerging disease of wild snakes in eastern North America caused by the fungus Ophidiomyces ophiodiicola. The data presented here describe: 1) the types of fungi recovered in culture from the skin of snakes with and without fungal skin infections, 2) the presence or absence of skin lesions in populations of snakes surveyed at several sites in Wisconsin and Minnesota, and 3) the various species of snakes that have been found to harbor O. ophiodiicola.
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In September 2017, Hurricane Maria caused widespread landsliding throughout mountainous regions of Puerto Rico. Nearly all landslides mobilized as debris flows (Bessette-Kirton et al., 2019), but herein, we simply use the term “landslides” when describing all types of slope failures that occurred during Hurricane Maria. To examine the extent and physical characteristics of landslides in severely impacted areas (defined as having high landslide density (>25 landslides/km2) by Bessette-Kirton et al., 2017, 2019), we mapped individual landslides at scales between 1:600 and 1:1,000 in four 2.5 km2 study areas in the Mayagüez/Añasco/Las Marías (LAM1), Las Marías/Lares (LAM2), Naranjito (NAR), and Utuado (UTU) municipalities....
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This Data release includes time series data collected at Operable Unit 1, Naval Base Kitsap, Keyport, WA and bounding surface water bodies over a 3 week period from 07/12/2018 to 08/08/2018. Groundwater altitudes in nineteen monitoring wells and surface water altitude and water quality parameters in five surface water bodies were monitored. Time series data were collected covered a period that included neap and spring tides. Field deployment details and quality assurance methods are included in Open-File Report 2018-####, “Groundwater Response to Tidal fluctuations, OU1, Naval Base Kitsap, Keyport, Washington”. Groundwater altitudes are referenced to the North American Vertical Datum 1988 (NAVD88). Groundwater horizontal...
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The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers—Louisville District conducted a pilot study on the use of an autonomous underwater vehicle (AUV) for a survey of water conditions during August 2016 in a portion of Nolin River Lake, Kentucky. The AUV was equipped with sensors for the continuous collection of water-quality measurements for dissolved oxygen, pH, specific conductance, temperature, turbidity, total chlorophyll, and blue-green algae concentrations. The AUV continuously collected measurements of these water-quality parameters while traveling at varied depths in a set spatial pattern within a portion of the lake. In addition to the AUV survey, discrete nutrient- and...
These data include site- and survey-specific information for occupancy surveys of Dixie Valley Toads (Anaxyrus williamsi) collected in the Dixie Valley, Churchill County, Nevada, in May 2019. The data include both multiple surveys of the same sites and time-to-detection information to quantify detection probabilities and account for imperfect detection in assessments of Dixie Valley Toad occupancy. These data support the following publication: Schimel, D.S., 2018, Editorial: Ecological Applications, v. 28, no. 4, p. 869–870, https://doi.org/10.1002/eap.1735.
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Robinson Forest, in eastern Kentucky, is a research forest owned and operated by the University of Kentucky (UK) since the 1920s. The Forest is situated in a portion of eastern Kentucky that has undergone extensive resource extraction, including silvaculture and both underground and surface mining of coal. This site has been used to evaluate hydrologic process, stream permanence, and the potential effect of different methods of mineland reclamation on hydrology. Hydrology was simulated using the Water Availability Tool for Environmental Resources.
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This data release contains compiled groundwater withdrawal data from 1980 to 2018 for the Hueco Bolson, Mesilla Basin, and the Rio Grande alluvium in El Paso and Hudspeth Counties, Texas. Most groundwater withdrawal volumes were distributed to wells and separated into water-use categories. The data were compiled, distributed, and categorized as part of the U.S. Geological Survey’s involvement in the Transboundary Aquifer Assessment Program. The Transboundary Aquifer Assessment Act was originally signed into Public Law 109-448 by the 109th United States Congress in 2006. This law directed the Secretary of Interior to establish a U.S.-Mexico Transboundary Aquifer Assessment Program (TAAP) to systematically assess...
map background search result map search result map Streamflow and total phosphorus and orthophosphate data for samples collected in and near the Assabet River, Massachusetts, October 2008 through April 2014 Water-Quality Data from the Yukon River Basin in Alaska and Canada Geochemical Database for the Brackish Groundwater Assessment of the United States Water-quality and streamflow datasets used for estimating long-term mean daily streamflow and annual loads to be considered for use in regional streamflow, nutrient and sediment SPARROW models, United States, 1999-2014 Snake fungal disease: an emerging threat to wild snakes Ratings and estimated provisional streamflow for streamgages in Virginia, water years 1991 through 2013 Surficial Sediment Data on the North Fork Sitllaguamish River and State Route 530 Landslide near Oso, Washington Water-Quality Datasets from Synoptic Surveys in Nolin River Lake, Kentucky, using an Autonomous Underwater Vehicle, Discrete Sampling, and Depth Profiles, August 2016 Wetland data layers derived from Barnegat Bay Little Egg Harbor hydrodynamic model Nutrient concentrations, streamflow, and geospatial data for 76 wadeable streams in the Piedmont Ecoregion of the Southeastern United States Suspended sediment concentration and loads in the Nooksack River Basin, northwest Washington Water Quality Profile and Phytoplankton Community Data for Four Central Louisiana Oxbow Lakes, 2013-2015 Pedestrian tsunami evacuation results for two tsunami-evacuation zones (standard and extreme) and three travel speeds (impaired, slow, and fast walk) for O'ahu, HI 2016-2017 Geophysical data from the Kuparuk aufeis, North Slope, AK Map data from landslides triggered by Hurricane Maria in four study areas of Puerto Rico Groundwater, Surface water and Tidal Time Series Data at OU1 Naval Base Kitsap, Keyport, WA Groundwater withdrawals from the Hueco Bolson, Mesilla Basin, and the Rio Grande alluvium in El Paso and Hudspeth Counties, Texas, 1980-2018 Specific conductance data for selected rivers and creeks in Yellowstone National Park, beginning in 2010 (version 2.0, May 2020) Hydrologic simulations for Robinson Forest and Reclaimed Mineland Soils Site and Survey Data for Dixie Valley Toads in Churchill County, Nevada, 2019 Groundwater, Surface water and Tidal Time Series Data at OU1 Naval Base Kitsap, Keyport, WA 2016-2017 Geophysical data from the Kuparuk aufeis, North Slope, AK Surficial Sediment Data on the North Fork Sitllaguamish River and State Route 530 Landslide near Oso, Washington Hydrologic simulations for Robinson Forest and Reclaimed Mineland Soils Water-Quality Datasets from Synoptic Surveys in Nolin River Lake, Kentucky, using an Autonomous Underwater Vehicle, Discrete Sampling, and Depth Profiles, August 2016 Streamflow and total phosphorus and orthophosphate data for samples collected in and near the Assabet River, Massachusetts, October 2008 through April 2014 Pedestrian tsunami evacuation results for two tsunami-evacuation zones (standard and extreme) and three travel speeds (impaired, slow, and fast walk) for O'ahu, HI Site and Survey Data for Dixie Valley Toads in Churchill County, Nevada, 2019 Specific conductance data for selected rivers and creeks in Yellowstone National Park, beginning in 2010 (version 2.0, May 2020) Groundwater withdrawals from the Hueco Bolson, Mesilla Basin, and the Rio Grande alluvium in El Paso and Hudspeth Counties, Texas, 1980-2018 Ratings and estimated provisional streamflow for streamgages in Virginia, water years 1991 through 2013 Nutrient concentrations, streamflow, and geospatial data for 76 wadeable streams in the Piedmont Ecoregion of the Southeastern United States Water-Quality Data from the Yukon River Basin in Alaska and Canada Water-quality and streamflow datasets used for estimating long-term mean daily streamflow and annual loads to be considered for use in regional streamflow, nutrient and sediment SPARROW models, United States, 1999-2014 Snake fungal disease: an emerging threat to wild snakes Geochemical Database for the Brackish Groundwater Assessment of the United States