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Filters Date Types (for Date Range) Extensions Shapefile (3) Raster (1) Types Map Service (15) OGC WFS Layer (14) OGC WMS Layer (14) OGC WMS Service (11) Downloadable (5) More... Contacts U.S. Geological Survey - ScienceBase U.S. Geological Survey Water Resources Ecosystems Carl J Legleiter More... Categories Data Release - Revised (1) Tag Types Theme (51) Place (48) USGS Scientific Topic Keyword (50) Harvest Set (51) CMS Non-theme Topics (3) CMS Topics (3) CMS Themes (3) Tag Schemes USGS Thesaurus (38) None (22) Geographic Names Information System (GNIS) (13) ISO 19115 Topic Category (29) Common geographic areas (16) none (2) ISO 19115 Topic Categories (6) More... View Results as: JSON ATOM CSV

Long-term monotonic trends in annual and monthly streamflow metrics at streamgages in the United States The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand for water need by delivering routine assessments of water supply and demand and an understanding of the natural and human factors affecting the balance between supply and demand. A key part of these national assessments is identifying long-term trends in water availability, including groundwater and surface water quantity, quality, and use. This data release contains Mann-Kendall monotonic trend analyses for 18 observed annual and monthly streamflow metrics at 6,347 U.S. Geological Survey streamgages located in the conterminous... Categories: Data; Tags: Hydrology, USGS Science Data Catalog (SDC), United States, Water Resources, droughts, All tags... floods, hydrology, inlandWaters, streamflow, trends, Fewer tags Nitrogen Loads, Yields, and Associated Field Data Collected During Baseflow Conditions and Site Attributes for Small Basins Draining to Long Island Sound During the spring and summer of 2022, the U.S. Geological Survey collected water-quality samples for nutrient analysis at 45 stations across the state of Connecticut and adjacent areas of New York and Rhode Island to better understand the groundwater discharge component of nitrogen loading to the Long Island Sound. The targeted stations were located in small drainage basins (less than 50 square kilometers) in the southern portion of the Long Island Sound watershed. Sites were selected randomly from groups based on expected drivers or controls on baseflow nitrogen loads. Factors used in the grouping included four metrics calculated for the upstream watershed: percent impervious cover, septic system density, percent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Connecticut, Connecticut Coastal, Hydrology, Long Island Sound, New York, All tags... Rhode Island, USGS Science Data Catalog (SDC), Water Quality, Water Resources, groundwater and surface-water interaction, inlandWaters, nitrogen, nutrient content (water), stream discharge, Fewer tags Specific conductance data collected during slug additions Slug additions are often the most accurate method for determining discharge when traditional current meter or acoustic measurements are unreliable because of high turbulence, rocky streambed, shallow or sheet flow, or the stream is physically inaccessible (e.g., under ice or canyon walls) or unsafe to wade (Zellweger et al., 1989, Kilpatrick and Cobb 1984, Ferranti 2015). The slug addition method for determining discharge requires an injection of a known amount of a single salt and high-frequency downstream measurement of solute concentration to capture the response curve (Kilpatrick and Cobb 1984). A new slug method was developed to determine stream discharge utilizing specific conductance and ionic molal conductivities... Categories: Data; Tags: Geochemistry, Hydrology, NA, USGS Science Data Catalog (SDC), Water Quality, All tags... conductivity, discharge, slug, specific conductance, Fewer tags Various Lake Powell data used for predicting smallmouth bass entrainment rates and population growth based on thermal suitability below and downstream of Glen Canyon Dam These data were compiled to create models that estimate entrainment rates and population growth rates of smallmouth bass below Glen Canyon Dam. Objective(s) of our study were to predict smallmouth bass entrainment rates and population growth under different future scenarios of Lake Powell elevations and management. These data represent parameters needed for associated models and data needed to produce figures. These data were collected from publicly available online sources including published papers and federal government datasets. These data were assembled by researchers from U.S. Geological Survey, Utah State University, Colorado State University, U.S. Fish and Wildlife Service. These data can be used to run... Categories: Data; Tags: Aquatic Biology, Arizona, Climatology, Colorado River, Diamond Creek, All tags... Ecology, Geography, Glen Canyon, Glen Canyon Dam, Global Horizon Irradiance, Grand Canyon, Hydrology, Information Sciences, Lake Powell, Lees Ferry, Little Colorado River, Page, Page Airport, USGS Science Data Catalog (SDC), Utah, Williams, adaptive management, age class, air temperature, area, bathymetry, climatologyMeteorologyAtmosphere, data release, depth suitability, ecological processes, elevation, entrainment rates, environment, evaporation, field inventory and monitoring, inflow projections, inlandWaters, mean observed lengths, modeling, observed daily depths, outflow projections, population growth, precipitation (atmospheric), reproduction, reservoir water quality model CEQUAL-W2, smallmouth bass, solar, study areas, surface water (non-marine), surface water quality, temperature profiles, thermal suitability, water depths, water temperature, Fewer tags Temperature data collected from the Lower Yakima River from October 2018 to October 2020 A total of 27 temperature sensors were deployed along the lower 90 miles of the Yakima River at 7 locations where cold water had been previously observed. These 7 cold-water areas had 3 to 6 temperature sensors installed to document the extent and duration of these cold-water areas and their impacts on mainstem temperatures of the Lower Yakima River. Cold-water areas included the mouths of tributaries, alongside channels, and within alcoves. Sensor deployments ranged from 1 to 2 years beginning in October 2018. All temperature data are included in the Yakima.temperatures.zip folder. Details of each monitoring location are provided in the site.locs.csv file. In addition to the raw data and site location information,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Benton County, Ecology, Hydrology, Richland, WA, All tags... USGS Science Data Catalog (SDC), Washington State, Water Quality, Water Resources, Wildlife Biology, Yakima River, cold-water areas, inlandWaters, water temperature, Fewer tags Attribution of benthic macroinvertebrate sampling data to NHDPlus V2 and NHDPlus HR catchments within the Chesapeake Bay Watershed This data release links benthic macroinvertebrate sites to both the NHDPlus Version 2 and NHDPlus High Resolution Region 02 networks, hereafter referred to as V2 and HR, using the hydrolink methodology. Linked benthic macroinvertebrate sites are those included in the Chesapeake Bay Basin-wide Index of Biotic Integrity (Chessie BIBI) developed by the Interstate Commission on the Potomac River Basin (ICPRB) and available from the Chesapeake Bay Program (https://datahub.chesapeakebay.net/LivingResources). The data set contains a unique sample identifier created by ICPRB, survey program, coordinates of sample, linked V2 COMID and HR Permanent Identifier, and information regarding uncertainty in the attribution. We strongly... Categories: Data; Tags: Aquatic Biology, District of Columbia (national district), Ecology, Hydrology, Maryland (state), All tags... New York (state), Pennsylvania (state), USGS Science Data Catalog (SDC), Virginia (state), West Virginia (state), aquatic biology, aquatic ecosystems, ecology, freshwater ecosystems, hydrology, macroinvertebrates, Fewer tags Modelled Lake Powell releases and reservoir elevations under different alternative management scenarios These data were compiled for/to modeling efforts for U.S. Bureau of Reclamation National Environmental Policy Act (NEPA) analyses for the Colorado River in Grand Canyon, Arizona. Objective(s) of our study were to create revised monthly Lake Powell elevations and outflows from Bureau of Reclamation Colorado River Mid-term Modeling System (CRMMS) traces that incorporate the alternatives in the sEIS documents and indicate when potential actions may occur and how that changes water movement and storage. These data represent monthly hydrologies for Lake Powell: inflow, outflow, and elevation forecasts for 2024-2027, as well as volumes of water in outflows for different water mangement strategies in NEPA supplemental... Categories: Data; Tags: Arizona, Biota, Colorado River, Geography, Glen Canyon, All tags... Grand Canyon, Hydrology, Information Sciences, InlandWaters, Lake Powell, Lees Ferry, USGS Science Data Catalog (SDC), Water Resources, aquatic biology, data release, freshwater ecosystems, hydrographic datasets, invasive species, limnology, water budget, water quality, water temperature, Fewer tags Historic Water Chemistry Data for Thermal Features, Streams, and Rivers in the Yellowstone National Park Area, 1883-2021 Yellowstone National Park (YNP; Wyoming, Montana, and Idaho, USA) contains more than 10,000 hydrothermal features, several lakes, and four major watersheds. For more than 140 years, researchers at the U.S. Geological Survey and other scientific institutions have investigated the chemical compositions of hot springs, geysers, fumaroles, mud pots, streams, rivers, and lakes in YNP and surrounding areas. Water chemistry studies have revealed a range of compositions including waters with pH values ranging from about 1 to 10, surface temperatures from ambient to superheated values of 95°C, and elevated concentrations of silica, lithium, boron, fluoride, mercury, and arsenic. Hydrogeochemical data from YNP research have... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, USGS Science Data Catalog (SDC), Volcanology, Water Quality, Water Resources, All tags... Yellowstone Lake, Yellowstone National Park, inlandWaters, thermal features, water chemistry, Fewer tags Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020 This dataset includes georeferenced, high-resolution, airborne thermal infrared (TIR) and high-resolution true-color imagery, a polyline shapefile of the channel centerline, a polyline shapefile with TIR sample points for longitudinal stream temperature profiles, and a tabular file with longitudinal stream temperature profiles for the Donner und Blitzen River and its tributaries, Oregon. The aerial TIR surveys were conducted with a helicopter by NV5 Geospatial and are published as 17 raster mosaics in GeoTiff format with a resolution of 0.3 meters (m). The TIR mosaics contain corrected surface temperatures in degrees Celsius (C) (multiplied by 10 to create an unsigned integer pixel type). The longitudinal stream... Categories: Data; Tags: Aquatic Biology, Donner und Blitzen River, Geomorphology, Harney County, Hydrology, All tags... Oregon, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, ecology, groundwater and surface-water interaction, hydrological processes, hydrology, inlandWaters, remote sensing, springs, stream temperature, thermal infrared, water quality, water resources, Fewer tags Cyanobacterial Picoplankton Data Collected from four Kansas Reservoirs during August 2020 through August 2022 This dataset provides the estimated cell abundance and total biovolume for whole-water picoplankton samples collected by the U.S. Geological Survey (USGS) at 25 different sites in Kansas between August of 2020 and August of 2022. The samples were analyzed by BSA Environmental Services, Inc. This data is part of a larger multi-agency project between U.S. Environmental Protection Agency, National Aeronautics and Space Administration, National Oceanic and Atmospheric Administration, and USGS called the Cyanobacteria Assessment Network (CyAN). The goal of the CyAN project is to develop a satellite-based, early warning system to detect harmful algal blooms (HABs) in freshwater systems. Categories: Data; Tags: Aquatic Biology, Environmental Health, Hillsdale Lake, Hydrology, Kansas, All tags... Marion Reservoir, Milford Lake, Perry Lake, USGS Science Data Catalog (SDC), Water Quality, algae, aquatic biology, biota, limnology, microscopy, phytoplankton, picoplankton, plankton, relative abundance analysis, Fewer tags Discharge measurements, air temperature, water temperature, and gage height data for select stream monitoring locations across Delmarva Peninsula (2022) As part of a larger study examining stream conditions and the effect of Best Management Practices in the Chesapeake Bay watershed, thirty small streams on the Delmarva Peninsula were instrumented and monitored for gage height (water level), water temperature, and air temperature using Onset HOBO sensors from March to September 2022. In addition, two discrete discharge measurements were made at baseflow at each site. This data release contains four .csv files with time-series for gage height, water temperature, and air temperature for all thirty monitoring locations and a table of discrete discharge measurements and associated field measurement metadata: Delmarva_2022_Continuous_Air_Temperature.csv Delmarva_2022_Continuous_Gage_Height.csv... Categories: Data; Tags: Chesapeake Bay, Climatology, Delaware, Earth sciences, Hydrology, All tags... Maryland, USGS Science Data Catalog (SDC), Water Quality, data release, hydrology, inlandWaters, transect sampling, Fewer tags Predicted recreation economics under different management scenarios for Lake Powell releases These data were compiled to predict economic impacts to angling in Glen Canyon and whitewater rafting in Grand Canyon. The objective of our study was to estimate recreation impacts, or changes in consumer surplus, under different future Interim Guidelines sEIS and LTEMP sEIS alternatives. These data include monthly impacts in nominal 2022 dollars. These data were created for operations at Glen Canyon Dam for October 2023 through November 2027. These data were created by the U.S. Geological Survey, Southwest Biological Science Center, Grand Canyon Monitoring and Research Center using mathematical modeling methods. Categories: Data; Tags: Arizona, Colorado River, Geography, Glen Canyon, Glen Canyon Dam, All tags... Grand Canyon, Hydrology, Information Sciences, Marble Canyon, USGS Science Data Catalog (SDC), Water Resources, angling, business and economics, consumer surplus, data release, economic value, economy, freshwater ecosystems, inland fishery resources, inlandWaters, rafting, recreation, recreational fishery resources, regulated river, river systems, sport fishing, whitewater, Fewer tags Environmental, biological, and leaf litter decomposition data in the Colorado River downstream of Glen Canyon Dam between 1998 and 2022 Yes, all data values are reasonable and within the valid range for measurement. The data release consists of 15 tabular data files (csv). These data were compiled to compare patterns and potential drivers of leaf litter decomposition in the Colorado River downstream of Glen Canyon Dam between 1998 and 2022. Objective(s) of our study were to compare the breakdown of cottonwood (Populus fremontii), willow (Salix exigua), and salt cedar (Tamarix chinensis) leaves to a previous decomposition experiment from 1998 (Pomeroy et al. 2000) that was conducted in the context of much cooler water temperatures, higher phosphorus concentrations, lower New Zealand mudsnail densities, and salt cedar litter that was unaffected by... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geography, All tags... Glen Canyon Dam, Hydrology, Information Sciences, Lake Powell, New Zealand mudsnail, Populus fremontii, Salix exigua, Tamarix chinensis, USGS Science Data Catalog (SDC), USGS:6500d7ead34ed30c20580390, Water Resources, air temperature, beetle, biochemistry, biomass, biota, climatologyMeteorologyAtmosphere, community composition, community ecology, cottonwood, data release, decay rates, decomposition, detritus, environment, field data, field experiments, field sampling, growth, inlandWaters, invasive species, invertebrates, laboratory experiments, leaf, leaf litter, leaf litter chemistry, leaf litter mass, leaf mass, leaf nutrient content, leaf pack, litter, nutrient content (water), phosphorus, physicochemical variable, population and community ecology, relative abundance analysis, reservoir storage, river ecosystems, saltcedar, stream discharge, vegetation, warming, water chemistry, water nutrient data, water temperature, willow, Fewer tags Input and results from boosted regression tree and artificial neural network models that predict daily maximum pH and daily minimum dissolved oxygen in Upper Klamath Lake, 2005-2019 This data release contains the model inputs, outputs, and source code (written in R) for the boosted regression tree (BRT) and artificial neural network (ANN) models developed for four sites in Upper Klamath Lake which were used to simulate daily maximum pH and daily minimum dissolved oxygen (DO) from May 18th to October 4th in 2005-12 and 2015-19 at four sites, and to evaluate variable effects and their importance. Simulations were not developed for 2013 and 2014 due to a large amount of missing meteorological data. The sites included: 1) Williamson River (WMR), which was located in the northern portion of the lake near the mouth of the Williamson River and had a depth between 0.7 and 2.9 meters; 2) Rattlesnake... Categories: Data; Tags: Oregon, USGS Science Data Catalog (SDC), Upper Klamath Lake, Water Quality, environment, All tags... hydrology, inlandWaters, surface water quality, water chemistry, Fewer tags Data release: Flood and Storm Tracker (FaST) data This product summarizes data used in the analysis portion of our Flood and Storm Tracker (FaST) manuscript (see larger work citation). The dataset titled HUCsppMatrices2012-2022.csv has each Hydraulic Unit Code (HUC) with an introduced taxon in each storm and the HUC it connected to by flood waters (lateral or longitudinal). The dataset titled ConnectionPoints_2012-2022.csv has each lateral (not longitudinal or downstream) connection point for each storm event. The dataset titled LongitudinalConnectionPoints_2012-2022.csv has each longitudinal or downstream connection point for each storm event. Categories: Data; Tags: Geography, Hurricane, Hydrologic connections, Hydrology, Land Use Change, All tags... Non-native species, Puerto Rico, Remote Sensing, Risk assessment, Storm flooding, USGS Science Data Catalog (SDC), United States, biota, Fewer tags Water quality modeling results of total phosphorus for the lower Boise River near Parma, Idaho 2002 - 2021 Three water-quality models were generated to estimate total phosphorus (TP) concentrations and loads from 2002 – 2021 in the Boise River near Parma, Idaho. A Weighted Regression on Time Discharge and Season (WRTDS) model and a Weighted Regression on Time Discharge and Season with Kalman filtering (WRTDS-K) model were generated using all observations within the study period to quantify rate of change in TP concentrations and loads. Further, these two models in addition to the Load ESTimator (LOADEST) model were generated using a subset of the observation data and evaluated on the observations withheld from model generation. The results of the models generated with all data are provided in one file ("full_mod_results.csv"),... Categories: Data; Tags: Hydrology, Idaho, USGS Science Data Catalog (SDC), Water Quality, mathematical modeling, All tags... nutrient content (water), statistical analysis, Fewer tags Hydrological, Chemical, and Biological Characterization of the Snake River and Associated Tributaries and Irrigation Drains from River Mile 448 to 346, 2022 This dataset includes field hydrologic measurements and laboratory analyses of surface and pore waters, sediments, benthic plants/biofilms, and biota along the Middle Snake River upgradient of the Hells Canyon Complex. The study region for this work focuses on a section of the Snake River heavily utilized for agriculture, with complex systems of irrigation diversion and return drainage, spanning 164 km above the Hells Canyon Complex (Idaho, Oregon). The goal of this study was to identify potential loading sources of methylmercury from the upgradient Snake River into the reservoir complex, with a focus on the tributaries, irrigation return drains, and riparian zones adjacent to agricultural lands along the river.... Categories: Data; Tags: Aquatic Biology, Environmental Health, Geochemistry, Hydrology, Idaho, All tags... Oregon, Snake River, USGS Science Data Catalog (SDC), Water Quality, aquatic ecosystems, bioaccumulation, biofilm, biota, dissolved metals, ecotoxicology, environment, geochemistry, hydrology, inlandWaters, invertebrates, mercury, methylmercury, pore water quality, sediment quality, surface water quality, water chemistry, Fewer tags Hydrologic gridded runoff and routed discharge data for Africa from 2000-2021 This dataset, VegDischarge v1, represents a significant contribution to the understanding of hydrological dynamics across Africa from 2000 to 2021. It encompasses high-resolution (1km x 1km) monthly raster data of deep drainage, surface runoff, and total runoff, derived from the VegET (VegetationEvapoTranspiration) hydrological model (Senay et al., 2023). Additionally, routed discharge data (Mizukami et al., 2021) for over 63,000 river segments is provided, employing different routing algorithms (DW, KW, KWT, MC, and IRF) to demonstrate variability in river discharge patterns. This comprehensive dataset is stored in NetCDF and Shapefile formats, offering valuable insights for policymakers, stakeholders, and researchers... Categories: Data; Types: Data, Downloadable, Map Service, NetCDF OPeNDAP Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Africa, Hydrology, Land Use Change, Remote Sensing, USGS Science Data Catalog (SDC), All tags... VegET model, VegHydro Model, deep drainage, discharge, geoscientificInformation, inlandWaters, raster data, routed discharge data, runoff, surface runoff, Fewer tags Database of post-wildfire floods and debris flows This database contains information on peak flows (floods, hyperconcentrated flows, and debris flows) after wildfire. Data were collected from the scientific literature and the U.S. Geological Survey National Water Information System. These data provide a foundation to assess the upper limits of post-wildfire floods that imperil human lives, infrastructure, and water supplies. Literature citations for studies that the data were sourced from are contained in the file "bibliographyv2.rtf". Categories: Data; Tags: Hydrology, USGS Science Data Catalog (SDC), Water Quality, Water Resources, utilitiesCommunication, All tags... wildfire, flood, Fewer tags Delmarva Peninsula Stream Health and Habitat Assessments in Maryland and Delaware (2022) U. S. Geological Survey (USGS) scientists completed a data collection campaign from the 25th of April to the 10th of June in 2022, using various methods to record geomorphic and habitat indicators throughout 30 streams on the Delmarva Peninsula. Field methods included GNSS surveys, gravelometer-based pebble count readings, visual assessments, and riparian analyses. This metadata record contains all raw observations from the campaign as well as numerous summary metrics to be used in model development. Those "model-ready" data can be found in Delmarva_Model_Deliverable.csv in the parent item, while the two child items containing raw in-channel observations and raw survey data. Attached to this release is a data dictionary... Categories: Data; Tags: Chesapeake Bay, Chesapeake Bay, Delaware, Delmarva Peninsula, GPS measurement, All tags... Maryland, U.S. Geological Survey, USA, USGS Science Data Catalog (SDC), Water Resources, agriculture, dendrochronology, environmental health (human), erosion, geography, geomorphology, geoscientificInformation, habitat, hydrology, inlandWaters, riparian, river reaches, stream survey, streams, transect sampling, usgs, Fewer tags 1 2 3 »