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The extensive development of oil and natural-gas resources in south Texas during the past 10 years has led to questions regarding possible environmental effects of processes associated with oil and natural-gas production, in particular the process of hydraulic fracturing, on water and other natural resources. Part of the lower San Antonio River watershed intersects an area of oil and natural-gas production from the sedimentary rocks that compose the Eagle Ford Group. The rapid expansion of infrastructure associated with oil and natural-gas production increases potential pathways for inorganic and organic contaminants to enter surface-water systems. The U.S. Geological Survey, in cooperation with the San Antonio...
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This set of spatial data sets provides information pertaining to the known land use and disturbance history for lands within the March 2018 administrative boundaries of Agate Fossil Beds National Monument and Scotts Bluff National Monument in Nebraska; Badlands National Park and Wind Cave National Park in South Dakota; Little Bighorn Battlefield National Monument in Montana; and Devils Tower National Monument and Fort Laramie National Historic Site in Wyoming.
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This data release supports the study by Sexstone and others (2020) and contains simulation output from SnowModel (Liston and Elder, 2006), a well-validated process-based snow modeling system. Simulations are for water years 1984 through 2017 (October 1, 1983 through September 30, 2017) across a 11,200 square kilometer model domain in the San Juan Mountains of southwestern Colorado, United States that encompasses the Rio Grande Basin headwaters (HUC8 13010001). This data release also contains supporting field-based snow and meteorological station observations collected within the model domain during water years 2016 and 2017 that were used to evaluate SnowModel simulations. Sexstone and others (2020) provide details...
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The past decade includes some of the most extensive boreal forest fires in the historical record. Environmental drivers include warming temperatures, changing precipitation patterns, desiccation of thick organic soil layers, and increased ignition frequency from lightning. Wildland fires produce smoke aerosols that can travel thousands of kilometers, before blanketing the surfaces on which they fall, such as the Juneau Icefield of Alaska. This data release presents chemical constituent and physical particulate results from investigations of wildland fire smoke deposits and other atmospheric deposition characteristics stored in layers of ice in the Juneau Icefield of Alaska, USA (Tables 1 and 2). We drilled a series...
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Monitoring rangelands by identifying the departure of contemporary conditions from long-term ecological potential allows for the disentanglement of natural biophysical gradients driving change from changes due to land uses and other disturbance types. We developed maps of ecological potential (EP) for shrub, sagebrush (Artemisia spp.), perennial herbaceous, litter, and bare ground fractional cover in Wyoming, USA. EP maps correspond to the potential natural vegetation cover expected by environmental conditions in the absence of anthropogenic and natural disturbance as represented by the best growing conditions and least disturbed period of the Landsat archive. EP was predicted using regression tree models with inputs...
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The data were gathered as a preliminary assessment of soil microbiology and conditions in selected urban stormwater best management practices (BMPs) in Clarksburg, MD. Four bioretention facilities (BF), four dry ponds (DP), and four surface sand filters (SSF) were selected. Three samples were taken from each BMP (a single sample from one dry swale (DS) was also collected). BMPs were selected based on their position along various stormwater treatment trains. Soil samples were taken after precipitation events in the summer of 2015 and analyzed for various soil chemistry parameters and microbial taxonomic profiling.
This data release presents baseline datasets of phreatophytic groundwater-dependent ecosystem (GDE) locations in Oregon and trends in physical and environmental factors potentially influencing proximal groundwater supplies. The data release consists of three child items. The child items are: (1) Select Phreatophytic Shrub and Grass Species of Oregon, the Estimated Distribution of Phreatophytic Shrubland and Grassland Across Oregon, and Field Observations used to Constrain Mapped Species Distributions (tabular and raster datasets), (2) Historical Trends in Shallow and Deep Groundwater Levels by Well and 8-Digit Hydrologic Units (HUC8) (1990-2019, 2005-2019, and 2015-2019), GridMET Precipitation and Air Temperature...
Abstract (from http://www.sciencedirect.com/science/article/pii/S0006320712002388): U.S. National Park Service land managers face a variety of challenges to preserving the biodiversity in their parks. A principle challenge is to minimize the impacts of surrounding land use on park condition and biodiversity. In the absence of ideal sets of data and models, the present study develops methods and results that demonstrate a coarse-filter approach to understanding the effects of land use change on habitat types for four pilot study-areas. The area of analysis for each park is defined by a protected-area-centered-ecosystem. Habitat types were defined by biophysical factors assumed to represent the distribution of vegetation...
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This is a 3 ft resolution digital elevation model derived from light detection and ranging (lidar). Lidar was collected in 2018 and coverage includes a portion of Clarksburg, Maryland, focused around the Clarksburg Special Protection Area (CSPA).
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This dataset provides a near-real-time estimate of 2019 herbaceous annual cover with an emphasis on annual grass (Boyte and Wylie. 2016. Near-real-time cheatgrass percent cover in the Northern Great Basin, USA, 2015. Rangelands 38:278-284.) This estimate was based on remotely sensed enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) data gathered through June 24, 2019. This is the second iteration of an early estimate of herbaceous annual cover for 2019 over the same geographic area. The previous dataset used eMODIS NDVI data gathered through April 28, 2019 (https://doi.org/10.5066/P9ZEK5M1). The pixel values for this most recent estimate ranged from 0 to100%...
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Seabeach amaranth (Amaranthus pumilus) is a plant species that was once prevalent on beaches of the U.S. mid-Atlantic coast but is now listed as threatened by the U.S. Fish and Wildlife Service. For much of the 20th century, seabeach amaranth was absent from the mid-Atlantic coast and thought to be extinct, presumably as a result of increased development and recreational pressure. One region where there has been an effort to restore the seabeach amaranth population is Assateague Island National Seashore (ASIS), a National Park Service land holding located along the coasts of Maryland and Virginia. Here, the Natural Resources staff at ASIS planted seabeach amaranth cultivars for three growing seasons from 1999...
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This data release contains summary metrics describing stream stage, stream water temperature, and short-term climate conditions (daily precipitation and air temperature) for 30 streams spanning gradients of forest and pasture land uses and agricultural best management practice implementation in the Shenandoah Valley region of Virginia and West Virginia, USA. This setting is the first of four settings or "typologies" that will be assessed for the USGS Chesapeake Stream Team project. High-frequency stage and water temperature (5-minute data), and air temperature (30-minute data) were measured by the U.S. Geological Survey (USGS) from May 2021 to December 2021 and are available on the USGS National Water Information...
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Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine the efficacy of these efforts. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for monitoring. The CRMS program includes a suite of approximately 398 sites that encompass the range of hydrological and ecological conditions for each stratum. As part of CRMS, land and water classifications are created from Digital Orthophoto Quarter Quadrangles (DOQQs) approximately every three years at all CRMS sites. A DOQQ...
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Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in Louisiana rely on monitoring to determine the efficacy of these projects. The Coastwide Reference Monitoring System (CRMS) was developed to assist in a multiple-reference approach that uses aspects of hydrogeomorphic functional assessments and probabilistic sampling for monitoring. The CRMS program includes a suite of approximately 390 sites that encompass the range of hydrological and ecological conditions for each stratum. As part of CRMS, land and water classifications are created from Digital Orthophoto Quarter Quadrangles (DOQQs) approximately every three years at all CRMS sites. This dataset consists...
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This data release contains the complete set of modeling input and output files for a Heat Source water temperature model and fish bioenergetics model on the lower Quinault River in Washington state. A detailed description of the modeling process, results, and interpretation can be found in the associated primary publication.
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Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P9MULBED This dataset contains water surface elevations for the wetlands in the Cottonwood Lake Study Area, Stutsman County, North Dakota.
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Note: this data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P9GTOFCW This dataset contains the specific conductance values for all wetlands in the Cottonwood Lake Study Area, Stutsman County, North Dakota.
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This simulated ecosystem carbon dataset is derived from simulations of the parallel Integrated Biosphere simulator (pIBIS). Annual carbon variables cover 1971-2015 at 1-km (960m) spatial resolution with 3052 rows and 4823 columns. Carbon stock and flux units are in kgC/m2 and kgC/m2/yr, respectively. Data are in NetCDF format and Albers equal area projection. Overall data creation steps: 1. The pIBIS model was used to run simulations using climate, vegetation, soil and disturbance input data; 2. Model outputs were converted to NetCDF format; 3. 1971-2015 subsets were clipped from original 1901-2015 simulation outputs. Variable List: aynbp – annual net biome productivity ayneetot – net ecosystem productivity aynpptot...
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Chemical and biological results, quality assurance and quality control, and method information from groundwater, surface water, and litter samples, collected from nine locations in Iowa and one in Wisconsin in 2016. Thirteen groundwater, nine surface water, four poultry litter, and four QA/QC samples were collected. Samples were analyzed at U.S. Geological Survey laboratories; bacteria, pathogens, and antibiotic resistance genes at the Michigan Bacteriological Research Laboratory, F+ specific coliphage at the St. Petersburg Coastal and Marine Science Center, hormones and antibiotics at the Organic Geochemistry Research Laboratory, nutrients at the National Water Quality Laboratory, total estrogenicity at Fish Health...
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The lateral blast, debris avalanche, and lahars of the May 18th, 1980, eruption of Mount St. Helens, Washington, dramatically altered the surrounding landscape. The eruption produced mudflows in the South Fork Toutle River basin, which drains the western slopes of the volcano. Orthophotography was acquired shortly after the eruption (June 19 and July 1). Survey extent includes South Fork Toutle River, from its headwaters at Talas and Toutle Glaciers to its mouth at the confluence with North Fork Toutle River near Toutle, Washington. In 2004, Photo Sciences, Inc., under contract to the U.S. Geological Survey (USGS), used softcopy photogrammetry techniques to produce a contour map, breaklines, and masspoints. A USGS...
map background search result map search result map Cottonwood Lake Study Area - Water Surface Elevations Cottonwood Lake Study Area - Specific Conductance Land-Cover, Surface-Water, and Streambed-Sediment Data Collected Upstream From and Within an Area of Oil and Natural-Gas Production, South Texas, 2008-17 Land use and disturbance history for seven northern Great Plains National Park Service units, ~1850-2018 Simulated 1km resolution 1971-2015 ecosystem carbon variables from the IBIS model (2017/09/12) Microbial and chemical contaminant occurrence and concentration in groundwater and surface water proximal to large-scale poultry facilities and poultry litter, 2016 Soil characteristics and microbial taxonomy in selected urban stormwater best management practices (BMPs) in Clarksburg, MD, 2015 Near-real-time Herbaceous Annual Cover in the Sagebrush Ecosystem, USA, July 2019 SnowModel simulations and supporting observations for the Rio Grande Headwaters, southwestern Colorado, United States, 1984 - 2017 Long-Term Site Potential Rangeland Fractional Component Cover and Deviation in Wyoming, USA Using wildland fire tracer molecules to investigate fire frequency and vegetative combustion sources archived in the Juneau Icefield of Alaska Phreatophytic Shrublands and Grasslands, Historical (1990–2019) Trends in Groundwater Levels, Precipitation, and Air Temperature, Historical (1955-2016) Trends in Snow-Water Equivalent, and Projected Future (2040–99) Climate and Hydrology Anomalies across Oregon Quinault River water temperature and salmon bioenergetics model data 2018 3 ft Digital Elevation Model of Clarksburg, Maryland Assateague Island Seabeach Amaranth Survey Data — 2001 to 2018 Digital elevation model of South Fork Toutle River, Mount St. Helens, based on June–July 1980 airborne photogrammetry Stream stage, stream temperature, and climate metrics for 30 streams spanning land use and management gradients in the Shenandoah Valley region of West Virginia and Virginia, 2021 Coastwide Reference Monitoring System (CRMS) 2021 land-water classification data, Western Louisiana Coastwide Reference Monitoring System (CRMS) 2005, 2008, 2012, 2015/2016, 2018, and 2021 land-water matrices, Western Louisiana Cottonwood Lake Study Area - Water Surface Elevations Cottonwood Lake Study Area - Specific Conductance 2018 3 ft Digital Elevation Model of Clarksburg, Maryland Land use and disturbance history for seven northern Great Plains National Park Service units, ~1850-2018 Quinault River water temperature and salmon bioenergetics model data Digital elevation model of South Fork Toutle River, Mount St. Helens, based on June–July 1980 airborne photogrammetry Soil characteristics and microbial taxonomy in selected urban stormwater best management practices (BMPs) in Clarksburg, MD, 2015 Assateague Island Seabeach Amaranth Survey Data — 2001 to 2018 SnowModel simulations and supporting observations for the Rio Grande Headwaters, southwestern Colorado, United States, 1984 - 2017 Stream stage, stream temperature, and climate metrics for 30 streams spanning land use and management gradients in the Shenandoah Valley region of West Virginia and Virginia, 2021 Using wildland fire tracer molecules to investigate fire frequency and vegetative combustion sources archived in the Juneau Icefield of Alaska Microbial and chemical contaminant occurrence and concentration in groundwater and surface water proximal to large-scale poultry facilities and poultry litter, 2016 Phreatophytic Shrublands and Grasslands, Historical (1990–2019) Trends in Groundwater Levels, Precipitation, and Air Temperature, Historical (1955-2016) Trends in Snow-Water Equivalent, and Projected Future (2040–99) Climate and Hydrology Anomalies across Oregon Long-Term Site Potential Rangeland Fractional Component Cover and Deviation in Wyoming, USA Near-real-time Herbaceous Annual Cover in the Sagebrush Ecosystem, USA, July 2019 Simulated 1km resolution 1971-2015 ecosystem carbon variables from the IBIS model (2017/09/12)