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Summary of proposed changes to geologic inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 This data release documents proposed updates to geologic inputs (faults) for the upcoming 2023 National Seismic Hazard Model (NSHM). This version (1.0) conveys differences between 2014 NSHM fault sources and those recently released in the earthquake geology inputs for the U.S. National Seismic Hazard Model (NSHM) 2023, version 1.0 data release by Hatem et al. (2021). A notable difference between the 2014 and 2023 datasets is that slip rates are provided at points for 2023 instead of generalized along the entire fault section length as in 2014; consequently, slip rates are not provided for fault sections in the draft 2023 dataset. Geospatial data (shapefile, kml and geojson) are provided in this data release with... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, California, Colorado, Idaho, Nevada, All tags... New Mexico, Oregon, Texas, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, hazards, Fewer tags MODFLOW-NWT Model Used to Evaluate Stream Capture Related to Groundwater Pumping, Lower Humboldt River Basin, Nevada (ver. 1.1, March 2024) A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Capture, Groundwater Model, Humboldt River Basin watershed, Hydrology, InlandWaters, All tags... Lovelock, MODFLOW-NWT, Nevada, Pershing County, Stream Capture, Streamflow Depletion, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, lower Humboldt River Basin aquifer system, usgsgroundwatermodel, Fewer tags Geospatial Data to Assess Karst Aquifer Systems Between Albany and Buffalo, New York (ver. 4.0, January 2024) Publicly available geospatial data were identified, collated, and analyzed for a region of karst terrain extending from Albany to Buffalo, New York. A series of geospatial datasets were assembled to determine the location and extent of karstic rock; bedrock geology and depth to bedrock; average water-table configuration; surficial geology; soil type, thickness, and hydraulic conductivity; land cover; and closed depressions in the land surface First release: 2021 Revised: July 2022 (ver. 2.0) Revised: October 2022 (ver. 3.0) Revised: January 2024 (ver. 4.0) Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Albany County, Aquifer Mapping, Basin & Hydrogeologic Characterization, Buffalo, Livingston County, All tags... Monroe County, New York, Schenectady County, USGS Science Data Catalog (SDC), Water Use and Availability Science, aquifer, karst, Fewer tags Range-wide habitat suitability maps for at-risk species in the longleaf system The data contained in child items of this page were developed to support the Species Status Assessments conducted by the U.S. Fish & Wildlife Service and conservation planning for State, Federal, and non-government researchers, managers, landowners, and other partners for five focal herpetofauna species: gopher tortoise (Gopherus polyphemus), southern hognose snake (Heterodon simus), Florida pine snake (Pituophis melanoleucus mugitus), gopher frog (Lithobates capito), and striped newt (Notophthalmus perstriatus). These data were developed by the USGS Cooperative Fish & Wildlife Research Unit at the University of Georgia in collaboration with other partners. The three child items contain the following data: (1)... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama (AL), Florida (FL), Florida Pine Snake, Georgia (GA), Gopher Frog, All tags... Gopher Tortoise, Gopherus polyphemus, Heterodon simus, Lithobates capito, Louisiana (LA), Mississippi (MS), North Carolina (NC), Notophthalmus perstriatus, Pituophis melanoleucus mugitus, South Carolina (SC), Southeast, Southern Hognose Snake, Striped Newt, USGS Science Data Catalog (SDC), amphibians, at-risk species, habitat suitability models, longleaf pine, reptiles, Fewer tags Great Lakes Coastal Wetland Restoration Assessment (GLCWRA) Upper Peninsula, U.S. (ver. 2.0, January 2024) This dataset contains all the layers associated with U.S. Geological Survey (USGS) Great Lakes Coastal Wetland Restoration Assessment (GLCWRA) initiative for the Upper Peninsula Restoration Assessment (UPRA) which aims to identify and rank coastal areas with the greatest potential for wetland habitat restoration. Each layer has a unique contribution to the identification of restorable wetlands. The 7 parameters (Parameter 0: Mask, Parameter 1: Hydroperiod, Parameter 2: Wetland Soils, Parameter 3: Flowlines, Parameter 4: Conservation and Recreation Lands, Parameter 5: Impervious Surfaces, and Parameter 6: Land Use) and Index Composite directly correlate to areas that are recommended for restoration. The dikes, degree... Categories: Data Release - Revised; Types: GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chippewa, Great Lakes, Holocene, Lake Huron, Lake Michigan, All tags... Mackinac, Michigan, USGS Science Data Catalog (SDC), environment, geoscientificInformation, habitat suitability indices, hydrology, inlandWaters, lake, lakeshore, natural resource management, remediation, resource management, river, stream, water quality, wetland, wetland ecosystems, wetland functions, wetland restoration, Fewer tags Wave observations from nearshore bottom-mounted pressure sensors in Skagit and Bellingham Bays, Washington, USA from Dec 2017 to Feb 2018 RBRduo pressure and temperature sensors, mounted on aluminum frames, were moored in shallow (< 6 m) water depths in Skagit and Bellingham Bays, Washington, USA, from December 2017 to February 2018, to capture wave heights and periods. Continuous pressure fluctuations are transformed into surface-wave observations of wave heights, periods, and frequency spectra at 30-minute intervals. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMGP, Coastal and Marine Geology Program, Marine Geology, Oceans, PCMSC, All tags... Pacific Coastal and Marine Science Center, Skagit County, Skagit River, State of Washington, U.S. Geological Survey, USGS, Whatcom County, currents, geoscientificInformation, ocean temperature, physical oceanography, salinity, waves, Fewer tags Chirp, multichannel minisparker, and boomer seismic-reflection data from USGS field activity G-01-13-GA collected in Port Valdez, Alaska, in September 2013 Multichannel minisparker and boomer seismic-reflection and chirp sub bottom data were collected by the U.S. Geological Survey in September of 2013 in Port Valdez, Alaska. Data were collected aboard the USGS R/V Alaskan Gyre during field activity G-01-13-GA. Sub-bottom acoustic penetration spans several hundreds of meters and is variable by location. High-resolution multichannel seismic-reflection data were acquired to support the U.S. Geological Survey Alaska coastal and marine hazards project to explore the sedimentary structure of tsunamigenic landslide deposits around an IODP drill site in Port Valdez. These data and information are intended for science researchers, students from elementary through college, policy... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geophysics, Seismology, Structural Geology Chirp and minisparker seismic-reflection data of field activity L-1-06-SF collected offshore Bolinas to San Francisco, California from 2006-09-25 to 2006-10-03 High-resolution single-channel Chirp and minisparker seismic-reflection data were collected by the U.S. Geological Survey in September and October 2006, offshore Bolinas to San Francisco, California. Data were collected aboard the R/V Lakota, during field activity L-1-06-SF. Chirp data were collected using an EdgeTech 512 chirp subbottom system and were recorded with a Triton SB-Logger. Minisparker data were collected using a SIG 2-mille minisparker sound source combined with a single-channel streamer, and both were recorded with a Triton SB-Logger. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry and Elevation, Bolinas, CMHRP, Coastal and Marine Hazards and Resources Program, Elevation, All tags... Geophysics, Golden Gate, Marine Geology, North Pacific Ocean, Ocean Beach, Oceans, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, San Francisco, State of California, U.S. Geological Survey, USGS, geoscientificinformation, geospatial datasets, marine geophysics, seismic reflection profiling, sub-bottom profiling, Fewer tags Publications of the Gap Analysis Project This ScienceBase space provides an array of USGS Series publications, journal articles, and other published references for the Gap Analysis Project (GAP). Information on GAP-related publications can also be found at: https://www.usgs.gov/core-science-systems/science-analytics-and-synthesis/gap/publications Categories: Publication; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service NGWOS Ground Based Discrete Snowpack Measurements Ground-based discrete snowpack measurements were collected during winter field campaigns starting in 2020. These data were collected as part of the U.S. Geological Survey (USGS) Next Generation Water Observing System (NGWOS) Upper Colorado River Basin project focusing on the relation between snow dynamics and water resources. This data release consists of three child items. Each child item contains snow depth, snow density, snow temperature, or snow water equivalent values measured discretely in the field. The data are provided in comma separated value (CSV) files. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Colorado River, Hydrology, Integrated Water Science, Rocky Mountains, All tags... USGS Science Data Catalog (SDC), Water Resources, snow, snow density, snow depth, snow pit, snow temperature, snow water equivalent, snowpack, Fewer tags Geospatial data and surface-water model archive for evaluation of streamflow extent and hydraulic characteristics of a restored channel at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada This U.S. Geological Survey data release consists of a geospatial dataset containing information on estimated streamflow extent, stream velocity, and stream depth at Soldier Meadows Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada, and the data acquired and processed to support the estimation of those attributes. Supporting datasets include topographic survey data collected using a global navigation satellite system (GNSS) in Soldier Meadows from August 13-15, 2019, and an archive of the two-dimensional hydraulic model used to generate a polygon dataset for streamflow extent as well as raster datasets for stream velocity, and stream depth. The data release includes: 1) a polygon... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Black Rock Desert, Black Rock Desert – High Rock Canyon Emigrant Trails National Conservation Area, Hydrology, Nevada, Soldier Meadow, All tags... USGS Science Data Catalog (SDC), Water Resources, freshwater ecosystems, inlandWaters, mathematical modeling, streamflow, surface water (non-marine), Fewer tags Rate of shoreline change statistics for New York State coastal wetlands This data set contains shoreline rate of change statistics for New York State coastal wetlands. Analysis was performed using the Digital Shoreline Analysis System (DSAS), created by U.S. Geological Survey, version 5.0, an extension for ArcMap. A reference baseline was used as the originating point for orthogonal transects cast by the DSAS software. The transects intersect each polyline vector shoreline establishing intersection measurement points, which were then used to calculate the rates of change. End-point rates, calculated by dividing the distance of shoreline movement by the time elapsed between the oldest and the most recent shoreline, were generated for wetlands where fewer than three historic shorelines... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Digital Shoreline Analysis System, End-Point Rate, Geography, Geomorphology, Great South Bay, All tags... Hudson River, Jamaica Bay, Linear Regression Rate, New York, New York Bay, New York State, Peconic Bay, Shoreline Change Rate, U.S. Geological Survey, USGS Science Data Catalog (SDC), United States, Water Resources, Woods Hole Coastal and Marine Science Center, coastal processes, erosion, estuary, shoreline accretion, wetland, wetland ecosystems, Fewer tags Current Velocity, Wave Height, and Directional Data in the Lower Laguna Madre near South Padre Island, Texas, July 2022 to January 2023 The U.S. Geological Survey (USGS), in cooperation with the City of South Padre Island, Texas, deployed an acoustic Doppler current profiler (ADCP) to collect current velocity, wave height, and directional data in the lower Laguna Madre adjacent to South Padre Island, Texas. From July 19, 2022, through January 9, 2023, these data were collected at a site near South Padre Island (USGS station number 260551097100901) by using an up-looking acoustic doppler current profiler (ADCP) mounted on the bottom of the lower Laguna Madre. Raw data were collected at a frequency of 2 hertz (Hz); reported values were computed as the average of the processed data values for 60-minute intervals. All times are represented in Coordinated... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cameron County, Laguna Madre, South Padre Island, Texas, USGS Science Data Catalog (SDC), All tags... Water Resources, acoustic Doppler current profiler, current velocity, hydrodynamics, wave height, Fewer tags Cyanotoxin Concentrations in Extracts from Solid Phase Adsorption Toxin Tracking (SPATT) and Diffusive Gradients in Thin-Films (DGT) Samplers in Owasco Lake, Seneca Lake, and Skaneateles Lake, Finger Lakes Region, New York, 2019 This data release contains dissolved cyanotoxin concentrations for microcystins (MC), cylindrospermopsins (CYL), anatoxins (ATX), and saxitoxins (STX) assessed using enzyme-linked immunosorbent assays (ELISA) and liquid chromatography-mass spectrometry or tandem mass spectrometry (LC-MS and LC-MS/MS, respectively) in extracts from SPATT (n=95) and DGT samplers (n=10) deployed on three Finger Lakes (Owasco, Seneca, and Skaneateles) between June and November 2019. Relative percent contributions of microcystin congeners are also provided for samples analyzed by LC-MS and LC-MS/MS. Solid phase adsorption toxin tracking (SPATT) and diffusive gradients in thin-films (DGT) are types of passive environmental samplers containing... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Contaminants, HABS, Finger Lakes, New York, Owasco Lake, Owasco Lake Platform (Site ID: 425327076313601), All tags... Seneca Lake, Seneca Lake Platform (Site ID: 425027076564401), Skaneateles Lake, Skaneateles Lake Platform (Site ID: 425606076251601), Surface-Water Monitoring, USGS Science Data Catalog (SDC), United States, Water, Water Quality, Water Quality, algae, algal blooms, anatoxin, biota, congener, cyanobacteria, cyanotoxin, cylindrospermopsin, diffusive gradients in thin-films (DGT), ecotoxicology, environment, environmental proxies, enzyme-linked immunosorbent assay (ELISA), fresh water (surface), hazards, inlandWaters, lake ecosystems, limnology, mass spectrometry, microcystin, phytoplankton, saxitoxin, solid phase adsorption toxin tracking (SPATT), surface water quality, water quality, water resources, Fewer tags Arizona Bureau of Mines Mining Files Collection Inventory The Arizona Bureau of Mines (and later the Arizona Bureau of Geology and Mineral Technology and the Arizona Geological Survey) maintained a significant collection of primary data on mining districts, deposits, and prospects across Arizona. Some of this data has previously been utilized to contribute to earlier efforts by the U.S. Geological Survey to develop the Computerized Resources Information Bank (CRIB) as a centralized repository of organizing and summarizing data on mineral resources in the 1970’s. However, the primary data sources have previously only been available in person at the Arizona Geological Survey offices. Following the transfer of the Arizona Geological Survey to the University of Arizona in... Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Mining Delaware River Basin Stream Salinity Machine Learning Model Simulations for Past and Future Drought This model archive contains the input data, model code, and model outputs for machine learning models that predict daily non-tidal stream salinity (specific conductance) for a network of 459 modeled stream segements across the Delaware River Basin (DRB). Results are provided for two time periods: the historical drought-of-record from 1965-10-02 to 1969-12-30, and that same drought evaluated in climatic conditions that are consistent with a LENS2 enseble climate projection from 2057-10-02 to 2061-12-30. Results are provided for a total of three Random Forest models, corresponding to three input attribute sets (dynamic attributes, dynamic and static attributes, and dynamic attributes and a minimum set of static attributes).... Categories: Data, Data Release - In Progress; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Delaware (DE), Delaware River Basin, Environment, Machine Learning, Maryland (MD), All tags... Modeling, New Jersey (NJ), New York (NY), Pennsylvania (PA), Stream Salinity, United States (US), Water quality/Water chemistry, Fewer tags National Land Cover Database (NLCD) 2001 Land Cover Conterminous United States (ver. 2.0, July 2024) Disclaimer: this is an historic version of NLCD provided for research and citation purposes. Different release dates of NLCD cannot be used with other release dates for correct analysis. Each release of NLCD generates a complete set of directly comparable products. These products must be used together for correct analysis. You can find the latest suite of synced products at www.mrlc.gov. The National Land Cover Database 2001 land cover layer for mapping zones 01-66 was produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of federal agencies (www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Base Maps, Coastal Zone, Earth Cover, GIS, Land Cover, All tags... U.S., U.S. Geological Survey, US, US West Coast, USGS, USGS Science Data Catalog (SDC), United States, WA, Washington, digital spatial data, imagery, zone 01, Fewer tags Future Climate and Hydrology from Twenty Localized Constructed Analog (LOCA) Scenarios and the Basin Characterization Model (BCMv8) This data release contains monthly 270-meter resolution Basin Characterization Model (BCMv8) climate and hydrologic variables for Localized Constructed Analog (LOCA; Pierce et al., 2014)-downscaled Global Climate Models (GCMs) for Representative Concentration Pathway (RCP) 4.5 (medium-low emissions) and 8.5 (high emissions) for hydrologic California. The 20 future climate scenarios consist of ten GCMs with RCP 4.5 and 8.5 each: ACCESS 1.0, CanESM2, CCSM4, CESM1-BGC, CMCC-CMS, CNRM-CM5, GFDL-CM3, HadGEM2-CC, HadGEM2-ES, and MIROC5. The LOCA climate scenarios span water years 1950 to 2099 with greenhouse-gas forcings beginning in 2006. The LOCA downscaling method has been shown to produce better estimates of extreme... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Climatology, Hydrology, USGS Science Data Catalog (SDC), United States, All tags... Water Resources, atmospheric and climatic processes, climate change, climatologyMeteorologyAtmosphere, environment, evaporation, geoscientificInformation, hydrology, inlandWaters, mathematical modeling, permeability, precipitation (atmospheric), snow and ice cover, soil moisture, streamflow, surface water (non-marine), transpiration, water budget, water cycle, water resources, watershed management, Fewer tags Geospatial datasets developed for a hydrogeologic conceptual model of brine discharge to the Dolores River, Paradox Valley, Colorado Geospatial datasets were developed to estimate the altitude of the top of bedrock, altitude of the top of the Paradox salt, altitude of the water table in the alluvial aquifer, and the thickness and extent of saturated alluvium in the Paradox Valley in western Colorado. This study was completed by the U.S. Geological Survey (USGS) in cooperation with the Bureau of Reclamation for modeling of brine discharge to the Dolores River (Heywood and others, 2024; Paschke and others, 2024). One point dataset and 11 surfaces (shapefiles or rasters) are published in this data release. The point dataset (Paradox_well_data.zip) contains water-level and geologic data for groundwater, observation, test, and production wells in... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Colorado, Dolores River, Montrose County, Paradox Formation, Paradox Valley, All tags... USGS Science Data Catalog (SDC), Water Resources, bedrock surface, brine discharge, geoscientificInformation, groundwater model, saturated alluvium, water-table surface, Fewer tags Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013—Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and the U.S. Environmental Protection Agency (EPA), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2013 at 57 sites throughout the Great Lakes Basin. The 2013 effort is part of a long-term study that began in 2010. Included in this directory are references to or descriptions of analytical methods used, collection methods, environmental data, and associated quality-assurance data for samples collected in 2013. Samples were collected from April through October 2013 by USGS, USFWS, and/or EPA personnel. Study sites include tributaries to the Great Lakes... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Area of Concern, Area of Concern, Emerging Contaminants, Emerging Contaminants, Great Lakes, All tags... Great Lakes Area of Concern, Great Lakes Restoration Initiative, Great Lakes Restoration Initiative, Toxicology, Toxicology, USGS Science Data Catalog (SDC), Water Quality, Fewer tags 1 2 3 4 5 ... 30 »