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White River at Noblesville, Indiana, Flood-Inundation Model and GIS Data Digital flood-inundation maps for a 7.5-mile reach of the White River at Noblesville, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at https://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the White River at Noblesville, Ind., streamgage (USGS station number 03349000). Real-time stages at this streamgage may be obtained from the USGS National Water Information System at https://waterdata.usgs.gov/nwis or the National Weather Service... Tags: City of Noblesville, Hydrogeology, Indiana, Noblesville, USGS Science Data Catalog (SDC), All tags... United States, White River, flood-inundation maps, floodplain, floodplains, floods, geospatial analysis, geospatial datasets, high-water marks, hydraulic engineering, hydrology, inlandWaters, maps and atlases, river, stream, streamflow, Fewer tags High-Precision Seismicity Catalog for the 2022 Hunga Tonga-Hunga Ha-apai Volcanic Eruption This is a catalog of precise relocations of earthquakes surrounding the 2022 Hunga Tonga-Hunga Ha-apai Volcanic Eruption. These were generated using using surface-wave double-difference measurements, and relative magnitudes were computed between events. For details of the methodology used to produce this catalog, and the interpretation of these data, see the Seismological Research Letter publication "High-Precision Characterization of Seismicity from the 2022 Hunga Tonga-Hunga Ha-apai Volcanic Eruption". Locations use the WGS 1984 Datum. One comma-separated table is provided in this data release, relocations.csv, which is a summary of the relocation magnitude analysis. It includes 18 columns: Column 1 (time):... Categories: Data, Data Release - In Progress; Tags: GHSC, Golden, Tonga, USGS, earthquake, All tags... earthquake hazards, relocation, seismic, Fewer tags Water quality data from the Goose Lake Study Site Eastern Montana 1989-2018 The data set contains temporal chloride concentrations (mg/L) and specific conductance (uS/cm) values for 32 wetlands and groundwater monitoring wells as well as the date(s) sampled and the laboratory where the water quality analyses were conducted. The ratio of chloride concentration to specific conductance is referred to as the Contamination Index. In this region, values greater than 0.035 are used to identify water quality samples that are contaminated with co-produced water from energy development. Categories: Data; Tags: Montana, USGS Science Data Catalog (SDC), United States, environment, water quality National Hydrologic Geospatial Fabric Reference and Derived Hydrofabrics The National Hydrologic Geospatial Fabric Reference and Derived Hydrofabrics is a geospatial dataset used for hydrologic modeling, containing a network of connected rivers, lakes, and catchments. It consists of four different network representations: Reference Fabric, Refactored Fabric, target-size Hydrofabric, and Point of Interest (POI) Aggregated Hydrofabric. Each representation is designed to meet specific modeling needs by providing different levels of consolidation and aggregation of the hydrographic features. The dataset includes features and attributes representing hydrologic locations associated with observational data, cataloging, or reporting water data quantity or quality, and structures important to... Categories: Data, Data Release - In Progress; Tags: Canada, Geographic Information Systems, Hydrologic Response Units, Hydrologic modeling, Points of Interest, All tags... Routing Network, USGS:5e29b87fe4b0a79317cf7df5, United States, geoscientificInformation, inlandWaters, Fewer tags Artificial sweetener results from groundwater and surface water samples collected on Kirtland Air Force Base and the surrounding region As part of a large-scale study of nitrate contamination on Kirtland Air Force Base in central New Mexico, the USGS collected groundwater and surface water samples for artificial sweetener analyses. Samples were collected following standard USGS procedures (U.S. Geological Survey, variously dated), filtered to 0.45 microns, and frozen until analysis. Artificial sweeteners analyzed include neotame, acesulfame-K, aspartame, saccharin, and sucralose. Of the 49 sites sampled, 17 sites had measurable detections of artificial sweeteners. Neotame was the most commonly detected sweetener (n=12) followed by saccharin (n=5), acesulfame-K (n=2), aspartame (n=1), and sucralose (n=0). Concentrations ranged from 0.0003–0.011 μg/L... Categories: Data, Data Release - In Progress; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: artificial sweetener, hydrology, water quality, environment Regional Moment Tensor Solutions The development and deployment of digital broadband seismographs provides the data required to rapidly assess earthquake size, determine source parameters and better characterize ground motions affecting earthquake hazard. The focus of regional moment tensor analysis is to estimate the moment magnitude, faulting parameters and source depth of earthquakes that are too small to be recorded teleseismically. Thus they have the potential of extending the earthquake catalog to magnitudes less than about M4-4.5. This data distribution provides the details required to critically review the resulting catalog, e.g., the waveforms used, processing parameters and velocity model. In addition the issue of the correct local magnitude... Categories: Data, Data Release - In Progress; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Europe, Regional Moment Tensors, biota, earthquake occurrences Network Attributes for the High Resolution National Hydrography Dataset (NHD) based initial 3D Hydrography Program Network See Full Metadata Here This dataset contains the initial 3D Hydrography Program (3DHP) flow network topology which is based on the final High Resolution National Hydrography Dataset (NHD) and a set of mainstem river identifiers based on on the Medium resolution NHDPlus Version 2 (NHDPlusV2). The 3DHP flow network topology and mainstem identifiers contained in this data release add two key pieces of information to the flow table of the National Hydrography Dataset: 1) at every junction, one and only one main upstream and downstream connection have been identified 2) every "in network" flowline has been assigned a mainstem identifier that places it into a hierarchy of rivers and drainage basins. For description... Categories: Data, Data Release - In Progress; Tags: Conterminous US, environment Formation and Evolution of the Pacific-North American (San Andreas) Plate Boundary: Constraints from the Crustal Architecture of Northern California This data release provides documentation on the input and output files used in a seismotectonic study of northern California (see reference below). Files contained in the data release include the station, location and arrivaltime input files to the tomography code and the output relocations and resulting P- and S-wave images. Note that we did not use the S-wave imaging results in the study of Furlong et al. (2024)--see reference below. Details on file formats and tutorials on how to use the tomography code used in the study can be found at https://avillasenorh.github.io/PStomo_documentation/. Reference: Furlong, K. P., Villaseñor, A., Benz, H.M., & McKenzie, K. A. (2024). Formation and evolution of the Pacific‐North... Categories: Data Release - In Progress; Tags: Northern California, biota, seismology, tectonic processes Massachusetts River Herring Daily Counts and Environmental data The timing of biological events in plants and animals, such as migration and reproduction, is shifting due to climate change. Anadromous fishes are particularly susceptible to these shifts, as they are subject to strong seasonal cycles when transitioning between marine and freshwater habitats to spawn. We used linear models to determine the extent of phenological shifts in adult alewife (Alosa pseudoharengus) as they migrated from ocean to freshwater environments during spring to spawn at 12 sites along the northeast U.S. We also evaluated broad-scale oceanic and atmospheric drivers that trigger their movements from offshore to inland habitats including sea surface temperature (SST), North Atlantic Oscillation index,... Categories: Data, Data Release - In Progress; Tags: Phenology, climate change, fish, migration, migration Cenozoic Calcareous Nannofossil Occurrences from Gulf Coastal Plain Cores and Outcrops In this data release, Cenozoic calcareous nannofossil occurrence charts are provided as Microsoft Excel spreadsheets for 15 cores or outcrops from the Gulf Coastal Plain (Alabama, Mississippi, and Georgia). Samples have been assigned a USGS sample number and are organized by depth below (cores and wells) or height above (outcrops) the land surface. Based on their known stratigraphic position, lithology, and specific calcareous nannofossil species content, each sample, where possible, was assigned to a geologic formation, age, and standard Martini (1971) calcareous nannofossil biostratigraphic zone. Five additional reference files are provided: (1) location information for each core or outcrop, (2) a list of calcareous... Categories: Data; Tags: Gulf Coastal Plain, Stratigraphy, USGS Science Data Catalog (SDC), biostratigraphy, biota, All tags... calcareous nannoplankton, continental margins, core analysis, fUS01 = Alabama, fUS13 = Georgia, fUS28 = Mississippi, faunal and floral census (microscopic), fossils, micropaleontology, stratigraphic sections, Fewer tags North Fork Salt Creek at Nashville, Indiana, Flood-Inundation Model and GIS Data Digital flood-inundation maps for a 3.2-mile reach of North Fork Salt Creek at Nashville, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage 03371650, North Fork Salt Creek at Nashville, Ind. Real-time stages at this streamgage may be obtained on the Internet from the USGS National Water Information System at http://waterdata.usgs.gov/nwis or the National Weather... Tags: Indiana, Nashville, North Fork Salt Creek, Town of Nashville, USGS Science Data Catalog (SDC), All tags... United States, flood-inundation maps, floodplain, floodplains, floods, geospatial analysis, geospatial datasets, high-water marks, hydraulic engineering, hydrology, inlandWaters, maps and atlases, river, stream, streamflow, Fewer tags Maximum horizontal stress orientation and relative stress magnitude (faulting regime) data throughout North America This Data Release accompanies the publication "State of stress in areas of active unconventional oil and gas development in North America" by J.-E. Lund Snee (now J.-E. Lundstern) and M.D. Zoback (2022) in the AAPG Bulletin. This dataset provides maximum horizontal stress (SHmax ) orientation and relative stress magnitude (faulting regime) information that comprise a new-generation crustal stress map for North America. Relative stress magnitudes are presented using the Aϕ (A_phi) parameter, a single scalar that represents the ratio of the three principal stress magnitudes. Data were collected between 2015 and 2022. Data points for SHmax orientations, relative stress magnitudes, and the earthquake focal mechanisms... Categories: Data; Types: Map Service, OGC WFS Layer; Tags: A_phi, Aphi, Canada, Caribbean Islands, Caribbean Sea, All tags... Holocene, NCCWSC, North America, North America, Quaternary, USGS:6469516bd34e3a6027e2f527, United States, earthquakes, engineering geology, faulting regime, geoscientificInformation, hazards, induced seismicity, maps and atlases, stress, stress regime, tectonic processes, Fewer tags Short-Period Surface-Wave Tomography in the Continental United States – A Resource for Research The variation of Love/Rayleigh phase and group velocity was determined for the continental U. S. and adjacent Canada. By processing ambient noise from the broadband channels of the Transportable Array (TA) of USArray and several PASSCAL experiments and using some earthquake recordings, the effort was focused toward determining dispersion down to periods as short as 2s. The relatively short distances between TA stations permitted the use of a 25 km x 25 km grid for the four independent tomographic inversions (Love/Rayleigh and Phase/group velocity). One reason for trying to obtain short period dispersion was to have a data set capable of constraining upper crust velocity models for use in determining regional moment... Categories: Data Release - In Progress; Tags: Surface Waves, Tomography, United States, biota Assessing spatial variability of nutrients and related water quality constituents in the California Sacramento-San Joaquin Delta: 2015-2022 High resolution mapping surveys in the North Delta-Suisun Habitat Arc This data release documents the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the Sacramento-San Joaquin River Delta of California, USA. The data set includes nitrate, ammonium, phosphate, dissolved organic carbon, temperature, conductivity, dissolved oxygen, turbidity, and chlorophyll. Data-collection were conducted over fourteen days between April 2015 - October 2022 with support from multiple cooperators. NOTE: Files marked as preliminary are provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided... Categories: Data, Data Release - In Progress; Tags: Cache Slough, California, Central Valley, Lower Sacramento, Sacramento River, All tags... Sacramento-San Joaquin Delta, San Francisco Bay, United States, Yolo Bypass, biogeochemistry, biota, delta, discrete sampling, drinking water use, environment, high-resolution, hydrogeology, inlandWaters, nutrient content (water), nutrients, phytoplankton, public supply water use, real-time, statistical analysis, visualization methods, water quality, Fewer tags Vegetation and snow depth measurements in grasslands under grazing, burning, and snow fence management near Woodworth, North Dakota (2014-2016) The application of two management strategies were tested across nine, Class III, wetland catchments located at the Woodworth Study Area (Stutsman County, ND). This field study took place during 2014 and 2015. 2014 was a pre-treatment year and snow measurements were taken in all experimental catchments in the late February 2015, before treatments were applied. Temporary electric fences were installed surrounding each wetland catchment to exclude them from grazing that took place on the management unit in 2015. All the catchments had been managed in a similar manner since purchased by USFWS in 1964. The primary management strategy of the wetland catchments from 1964–2013 was non-use with occasional prescribed burning.... Categories: Data, Data Release - In Progress; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: environment, farming, grassland management, inlandWaters, snow, All tags... vegetation, wetland, wetland, Fewer tags Quantification of nitrogen-fixing microorganisms (targeting nifH gene) in Cladophora algae by quantitative polymerase chain reaction (qPCR) Data were collected to determine the abundance of nitrogen-fixing microorganisms in Cladophora algae growing on rocks, breakwall structures, or submerged dreissenid mussel beds around southern Lake Michigan. Cladophora samples (N=33) were collected between June and September 2015 from three urban areas: (a) Jeorse Park, East Chicago, Indiana, (b) Calumet Beach, Chicago, Illinois, and (c) North Beach, Racine, Wisconsin, and a National Park site, Portage Lakefront, Indiana Dunes National Park, Indiana. Corresponding lake water samples (N=33) were collected approximately 15-20 feet away from submerged algal mats. Genomic DNA was extracted from water and processed algal samples. The abundance of nitrogen-fixing microorganisms... Categories: Data; Tags: Algae and water samples, Great Lakes Region, Lake Michigan, Nearshore submerged vegetation, USGS Science Data Catalog (SDC), All tags... algae, biota, economy, freshwater ecosystems, microbiology, nuisance species, nutrient cycling, polymerase chain reaction, Fewer tags Streamflow Observation Points in the Pacific Northwest, 1977-2016 This dataset includes spatial locations in the Pacific Northwest where streamflow observations were recorded. For the purpose of this investigation, all streamflow observations were converted into wet or dry indicator values. Categories: Data; Tags: California, Climatology, Data Visualization & Tools, Data Visualization & Tools, Decision-Making Support and Tools, All tags... Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Ecology, Hydrogeology, Idaho, Montana, NHD Region 17, Nevada, Northwest CASC, Oregon, Pacific Northwest, Rivers, Streams and Lakes, Rivers, Streams and Lakes, Science Tools For Managers, Science Tools For Managers, USGS Science Data Catalog (SDC), Utah, Washington, Water Resources, Water, Coasts and Ice, Water, Coasts and Ice, Wyoming, inlandWaters, intermittent, perennial, permanence, streamflow, streams, Fewer tags Potentiometric surface dataset of the Sparta-Memphis aquifer in Arkansas, January 2013 - May 2013 (ver. 1.2, June 2021) The U.S. Geological Survey (USGS), in cooperation with the Arkansas Natural Resources Commission, Arkansas Geological Survey, and the Union County Water Conservation Board, has monitored water levels as a part of an ongoing effort to provide information for management of the Sparta-Memphis aquifer. The USGS has produced reports, at various intervals, to describe groundwater conditions in the Sparta-Memphis aquifer. These datasets provide the locations of and groundwater-level altitudes from 306 wells that were used to construct a potentiometric contour surface of the Sparta-Memphis aquifer. Measurements were made from January through May 2013 and represent synoptic conditions. All wells were cased completely in... Categories: Data; Types: Map Service, OGC WMS Layer; Tags: Arkansas, Mississippi Embayment aquifer system, Sparta-Memphis Sand, USGS Science Data Catalog (SDC), aquifer, All tags... geoscientificInformation, groundwater, groundwater flow, groundwater level, hydrogeology, water resources, water well, Fewer tags Rainfall and streamflow data for computing lag to peak at streamgages representing small basins in Maine (2008-2015) These are rainfall and stream stage data collected at gaging sites in Maine. Data were collected from March to October from 2008 to 2015 and include stage data at crest stage gages, ratings to convert stage data to streamflow data, previously unpublished rainfall data, rainfall binned into specified time intervals, and storm files combining rainfall and streamflow data. Data were collected, compiled and combined in order to analyze the lag to peak (the time between the center of volume of the rainfall and the peak streamflow) for small basins in Maine. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Maine, USGS Science Data Catalog (SDC), Water Resources, field inventory, monitoring, All tags... precipitation data, Fewer tags Global Earthquake Machine Learning Dataset: Machine Learning Asset Aggregation of the PDE (MLAAPDE) The Machine Learning Asset Aggregation of the PDE (MLAAPDE) is a waveform archive, feature labeled catalog, and Python module that together provide a routine way to gather high-quality input data to train machine learning models. While all the data provided are already publicly available, MLAAPDE packages it in a format that allows a user to prepare input for common machine learning frameworks with few lines of code. Most of the features that are part of the MLAAPDE dataset are selected from the Preliminary Determination of Epicenters (PDE), the official earthquake catalog of the USGS National Earthquake Information Center (NEIC). The PDE aims to provide a complete catalog of source characterization estimates... Categories: Data Release - In Progress; Tags: Earthquakes, Machine Learning, World 1 2 »