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Biomass accrual and trace-element concentrations in water and periphytic algae at select locations in the Clark Fork and Blackfoot Rivers, Montana, 2015 The U.S. Geological Survey monitored algal biomass accrual and concentrations of metals and other trace elements in stream water and periphytic algae at 3-4 day intervals over a 2-week period at 3 locations within the upper and middle portions of the mining-impacted Clark Fork River, Montana, and at one location on the relatively unimpacted Blackfoot River tributary. This data release makes available trends in major and minor trace element concentrations in surface water and periphytic algae, and corresponding trends in concentrations of autotrophic (chlorophyll a) and heterotrophic (ash-free dry mass) algal biomass collected in late July and early August 2015. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Black Foot River, Botany, Clark Fork River, Ecology, All tags... Environmental Health, Galen Gage, Hydrology, Land Use Change, Limnology, Mineral Resources, Montana, Sedimentology, Turah, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, algae, bioaccumulation, biogeochemistry, periphyton, trace-element, water quality, Fewer tags A Soil-Water-Balance model and precipitation data used for HEC/HMS modelling at the Glacial Ridge National Wildlife Refuge area, northwestern Minnesota, 2002–15. A soil-water balance model (SWB) was developed to estimate evapotranspiration in six ditch basins of the Glacial Ridge National Wildlife Refuge area, northwestern Minnesota, during 2002–2015. The model was used to estimate evapotranspiration in water balances in six ditch basins as part of the associated report, U.S. Geological Survey Scientific Investigations Report 2019-5041 (https://dx.doi.org/10.3133/SIR20195041). This SWB model was derived from the statewide Minnesota SWB potential recharge model, described, calibrated, and documented as part of U.S. Geological Survey Scientific Investigations Report 2015-5038 (https://dx.doi.org/10.3133/sir20155038). The data sets and calibrations from the Minnesota statewide... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 27119 = Polk, 27125 = Red Lake, Evapotranspiration, Glacial Ridge National Wildlife Refuge, Minnesota, All tags... Model, Model Archive, Polk County, Red Lake County, SWB, USGS Science Data Catalog (SDC), Water Resources, Water balance, groundwater, hydrology, wetlands, Fewer tags Geomorphic map of Malakoff Diggins State Historic Park, California One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 2014 digital elevation model (DEM), a study area boundary, and a geomorphic map. The 2014 DEM was derived from an available aerial LiDAR dataset collected in 2014 by the California Department of Conservation. The geomorphic map was derived for the study area from using a multi-scale spatial analysis. A topographic... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Malakoff Diggins State Historic Park, USGS Science Data Catalog (SDC), erosion, geomorphic mapping, All tags... hydraulic mine, Fewer tags Water-Quality, Bed-Sediment, and Biological Data (October 2015 through September 2016) and Statistical Summaries of Data for Streams in the Clark Fork Basin, Montana A set of comma separated value tables containing analytical results and quality-assurance data for bed-sediment and biota samples collected at sites in the Clark Fork Basin, Montana from October 2015 through September 2016. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Environmental Health, Geochemistry, Invertebrates, Natural Resource Damage Assessment, All tags... USGS Science Data Catalog (SDC), Water Quality, contaminants, Fewer tags Spectral reflectance data of rock and soil in southcentral Alaska An ASD FieldSpec 4 Hi-Res NG Spectroradiometer was used to collect the reflectance properties of soil and rock in southcentral Alaska, USA (Figure 1) around the city of Anchorage (Figure 2) and the Prince William Sound (Figure 3). Reflectance is a property of the material being observed, being the ratio of the amount of light leaving a target to the amount of light striking the target. Reflectance is a unitless value from 0 to 1, where a value of 0 indicates that the material absorbs all energy and 1 indicates total reflectance. Additionally, samples were collected from the field and later measured using the spectrometer in the laboratory. Both field and laboratory data were collected in the summer and fall of 2022.... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Anchorage, Alaska, Chugach Mountains, Chugach National Forest, Chugach State Park, Hyperspectral Imaging, All tags... Landslides, Prince William Sound, Alaska, South Central Alaska, USGS Science Data Catalog (SDC), hazard, hyperspectral imaging, imaging spectroscopy, imaging spectroscopy, Fewer tags Map of landslide structures and kinematic elements at Barry Arm, Alaska in the summer of 2020 Two active landslides at and near the retreating front of Barry Glacier at the head of Barry Arm Fjord in southern Alaska (Figure 1) could generate tsunamis if they failed rapidly and entered the water of the fjord. Landslide A, at the front of the glacier, is the largest, with a total volume estimated at 455 M m3 (Dai et al, 2020). Historical photographs from Barry Arm indicate that Landslide A initiated in the mid twentieth century, but there was a large pulse of movement between 2010 and 2017 when Barry Glacier thinned and retreated from about 1/2 of the toe of Landslide A (Dai et al., 2020). The glacier has continued to retreat since 2017. Interferometric synthetic aperture radar (InSAR) investigations of the... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Barry Glacier, Geomorphology, Glaciology, Landslide hazards, Prince William Sound, Alaska, All tags... Prince William Sound, Alaska, Remote Sensing, Tsunami hazard planning, USGS Science Data Catalog (SDC), hazard, hazards, landslide, landslide, risk, risk, rock avalanche, rock slide, structural geology, tsunami, tsunami, Fewer tags Dynamic stage to discharge rating model archive Ratings are used for a variety of reasons in water-resources investigations. The simplest rating relates discharge to the stage of the river. From a pure hydrodynamics perspective, all rivers and streams have some form of hysteresis in the relation between stage and discharge because of unsteady flow as a flood wave passes. Simple ratings are unable to represent hysteresis in a stage/discharge relation. A dynamic rating method is capable of capturing hysteresis owing to the variable energy slope caused by unsteady momentum and pressure. Using some simplifying assumptions, Fread (1973) developed what was termed a “dynamic loop” rating method to compute discharge from a time series of stage at a single streamgage... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, Python, Stream gages, guage, streamflow, USGS, USGS Science Data Catalog (SDC), Water Resources, All tags... floodplain hydrology, hydrodynamics, hysteresis, rating, rating curves, streamflow and mathematical modeling, streamgage, Fewer tags Inventory data of rock avalanches in the Saint Elias Mountains of southeast Alaska, derived from Landsat imagery (1984-2019) Glacial retreat and mountain-permafrost degradation resulting from rising global temperatures have the potential to impact the frequency and magnitude of landslides in glaciated environments. In the Saint Elias Mountains of southeast Alaska, the presence of weak sedimentary and metamorphic rocks and active uplift resulting from the collision of the Yakutat and North American tectonic plates create landslide-prone conditions (Winkler et al., 2000). We used Landsat imagery to create an inventory of large (>0.1 square km) rock avalanches that occurred along the south flank of the Saint Elias Mountains between 1984 and 2019 as a baseline for present and future changes in landslide magnitude and frequency. This data... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climatology, Geomorphology, Glaciology, Hydrology, Remote Sensing, All tags... Southeast Alaska, USGS Science Data Catalog (SDC), Wrangell-Saint Elias National Park and Preserve, Alaska, climate, climate change, geomorphology, inventory, landsat, landslide, landslide, landslide inventory, remote sensing, rock avalanche, rock avalanche, Fewer tags Water-quality and phytoplankton data for Lake Pontchartrain and the western Mississippi Sound associated with operation of the Bonnet Carré Spillway, 2008–2020 The Bonnet Carré Spillway (BCS), located about 28 miles northwest of New Orleans, Louisiana, was constructed in the early 1930s as part of an integrated flood-control system for the lower Mississippi River Plain. The BCS is designed to divert water from the Mississippi River (MSR) into Lake Pontchartrain (LP), which then flows into Lake Borgne and the Mississippi Sound (MS Sound), thus relieving pressure on levees downstream. Opening of the spillway occurs when measured streamflow in the MSR at New Orleans exceeds approximately 1.25 million cubic feet per second, which normally occurs once a year in late spring. In 2019, for the first time, the spillway opened twice in one year; the first opening occurred between... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bay Saint Louis, Mississippi, Bonnet Carré Spillway, Lake Pontchartrain, Louisiana, Mississippi, All tags... Mississippi Sound, Mississippi Sound - Lake Borgne, USGS Science Data Catalog (SDC), Water Quality, algal blooms, algal species composition, harmful algal blooms, water quality, Fewer tags Datasets documenting neotectonic mapping of Puerto Rico This data release documents neotectonic mapping of fault-related features on high-resolution lidar-derived topography, data documenting an exposure of the South Lajas fault, and summary information for active and potentially active Quaternary faults on the island of Puerto Rico. The data documenting the exposure of the South Lajas fault include detailed unit descriptions, radiocarbon sample descriptions, data, and results, and a structure-from-motion-derived orthophoto mosaic of the exposure. Luminescence data and ages for the exposure can be found in a related data release. These datasets are associated with the manuscript: Thompson Jobe, J. A. R. Briggs, K. S. Hughes, J. Joyce, R. Gold, S. Mahan, H. Gray, L. Strickland... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geomorphology, Puerto Rico, Quaternary faulting, USGS Science Data Catalog (SDC), active fault, All tags... fault, Fewer tags Historical video footage of Mount St. Helens volcano, Washington, 1980-1982 This data release contains digital video files from the USGS of Mount St. Helens volcano in the months leading up to the cataclysmic eruption on May 18, 1980 as well as the first two years of the eruption. Original videos were collected on an assortment of cameras and film types, including 16 mm, 8 mm and Super 8 mm during USGS field campaigns on the ground as well as from the air and on time-lapse camera stations setup around the volcano. Videos capture USGS crews collecting data as well as an assortment of volcanic processes, including dome growth, ash emissions, rockslides, and pyroclastic flows. These film records represent a tremendous resource to the volcanology community as they represent visual recordings... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Mount St. Helens, Mount St. Helens Collection, Mount St. Helens, Washington, USGS Science Data Catalog (SDC), Volcanic Activity, All tags... Volcanic Eruption, Volcanic Unrest, Volcano, Volcano Observatories, Volcanology, Fewer tags High Resolution Daily Global Alfalfa-Reference Potential Evapotranspiration Climatology Global alfalfa-reference potential evapotranspiration (ETr) is a key model parameter in actual evapotranspiration (ETa) modeling for worldwide applications. This dataset was constructed for use with the Operational Simplified Surface Energy Balance (SSEBop) model as a key driver of the final ETa magnitude. SSEBop is a parametric energy balance-based model that determines actual ET as the product of two independent estimates: 1) the SSEBop modeled ET fraction (ETf), an index nominally varying between 0 and 1 and derived from observed Landsat surface temperature using satellite psychrometry, and 2) the potential ET (maximum) under environmental conditions for an alfalfa crop (in millimeters). As SSEBop ETf can now... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Climatology, ET modeling, Global, Hydrology, Reference Evapotranspiration, All tags... Remote Sensing, USGS Science Data Catalog (SDC), Water Resources, evaporation, input parameter for SSEBop model, potential evapotranspiration, transpiration, Fewer tags Total Phosphorus Load and Ancillary Data Related to Sources of Total Phosphorus in the Red River of the North Basin The Red River of the North (Red River) transports phosphorus from North Dakota, Minnesota, and South Dakota, to Manitoba, Canada, and eventually into Lake Winnipeg. Phosphorus load (or flux) is the amount of total phosphorus (TP) transported by the Red River. The effect of TP load on water quality is a concern, especially with respect to downstream eutrophication issues in Lake Winnipeg, Manitoba, Canada. There is interest at the State and International level to reduce TP flux – an expensive proposition, depending on the method (controlling sources, settling ponds, buffer strips, changes in land use) that is not always effective during spring runoff. The purpose of the study for which these data were developed... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Crookston, Crookston, Crookston, Emerson, Emerson, All tags... Emerson, Fargo, Fargo, Fargo, Halstad, Halstad, Halstad, Kindred, Kindred, Kindred, Manitoba, Manitoba, Minnesota, Minnesota, Moorhead, Moorhead, Moorhead, Neche, Neche, Neche, North Dakota, North Dakota, Pembina River, Pembina River, Pembina River, Red Lake River, Red Lake River, Red Lake River, Red River of the North, Red River of the North, Red River of the North, Sheyenne River, Sheyenne River, Sheyenne River, South Dakota, South Dakota, USGS Science Data Catalog (SDC), Water Quality, agriculture, loads, phosphorus, surface water quality, total phosphorus, water quality, Fewer tags Liquid water content, coastal fog events, San Mateo County, California Measurements of liquid water content (LWC) of coastal fog events were collected using specialized fog water collection units during the hot dry summer season (July to September) and continued through the winter. These data were assembled to explore the potential of fog water collection as a water resource for Midpeninsula Regional Open Space District public lands in San Mateo County, California. Simultaneous meteorological measurements were collected for four variables: wind, temperature, humidity, and solar radiation. The dataset includes ~12,000 records for two summers (2016 and 2017) at two sites. One site was a grassland near the MROSD Skyline Field Office (SFO) and the other in a Douglas forest clearing at... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CA-14, CA-18, EcosystemVulnerability, Land Change Science, USGS Science Data Catalog (SDC), All tags... Water, Water Resources, coastal, ecosystem services, environmental flows, habitat condition, hydrology, monitoring, protected area, resilience, water availability, water budget, watershed, Fewer tags Projected future habitat, elevation change, and carbon accumulation of coastal wetlands in the Nisqually River Delta, Washington This dataset consists of raster geotiff outputs from modeling habitat change, marsh vertical accretion, and carbon accumulation in the Nisqually River Delta, Washington, USA. These rasters represent projections of future habitat type, change in surface elevation above Mean Sea Level, and total sediment carbon accumulation since 2011 in coastal wetland habitats. Projections were generated in 20-year increments for 100 years for five amounts of sea-level rise, three amounts of suspended sediment concentrations, and two alternative configurations of the U.S. Interstate-5 causeway as it crosses the Nisqually River to either prevent or allow inland habitat migration (a total of 30 scenarios). The full methods and results... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Land Use Change, Nisqually, Pierce County, Thurston County, All tags... USGS Science Data Catalog (SDC), Washington (WA), Wildlife Biology, effects of climate change, Fewer tags Flood inundation map geospatial datasets for Lake Ontario, New York (ver. 2.0, November 2021) Static flood inundation boundary extents were created along the entire shoreline of Lake Ontario in Cayuga, Jefferson, Monroe, Niagara, Orleans, Oswego, and Wayne Counties in New York by using recently acquired (2007, 2010, 2014, and 2017) light detection and ranging (lidar) data. The flood inundation maps, accessible through the USGS Flood Inundation Mapping Program website at https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program, depict estimates of the areal extent and water depth of shoreline flooding in 8 segments corresponding to adjacent water-surface elevations (stages) at the following 8 USGS lake gages on Lake Ontario: A – Lake Ontario (Thirtymile point) at Golden... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Cayuga County, New York, Flood mapping, Geospatial Applications, Geospatial Applications, Hydrology, All tags... Information Visualization, Jefferson County, New York, Lake Ontario, Monroe County, New York, New York, Niagara County, New York, Orleans County, New York, Oswego County, New York, USGS Science Data Catalog (SDC), Wayne County, New York, decision support, flood inundation, flood-inundation maps, Fewer tags Data for projected impacts of climate, urbanization, water management, and wetland restoration on waterbird habitat in California’s Central Valley The Central Valley of California is one of the most important regions for wintering waterbirds in North America despite extensive anthropogenic landscape modification and decline of historical wetlands there. Like many other mediterranean-climate ecosystems across the globe, the Central Valley has been subject to a burgeoning human population and expansion and intensification of agricultural and urban development that have impacted wildlife habitats. Future effects of urban development, changes in water supply management, and precipitation and air temperature related to global climate change on area of waterbird habitat in the Central Valley are uncertain, yet potentially substantial. Therefore, we modeled area... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Central Valley, California, Climate Change, USGS Science Data Catalog (SDC), cropland, habitat, All tags... urbanization, water availability, water management, waterbirds, wetland, wetland restoration, Fewer tags Geochemical and Geophysical Characteristics of the Conterminous United States Dataset consists of individual rasters, each describing a separate geochemical or geophysical attribute. See "Child Items" to browse and select desired rasters, download associated service definition file, and unzip to access rasters formatted as geoTiffs. Categories: Data, Map; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Contiguous United States, Geochemical Data, Geophysical Data, National Water Quality Program, USGS Science Data Catalog (SDC), All tags... geologic, Fewer tags Water-Quality, Bed-Sediment, and Invertebrate Tissue Trace-Element Concentrations for Tributaries in the Clark Fork Basin, Montana, October 2018–September 2019 Water, bed sediment, and biota were sampled in selected streams from Butte to near Missoula, Montana, as part of a monitoring program in the upper Clark Fork Basin of western Montana. The sampling program was led by the U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Clark Fork Basin, Environmental Health, Geochemistry, Hydrology, All tags... Montana, USGS Science Data Catalog (SDC), Water Quality, Water Quality, Water Resources, bed sediment, biota, trace elements, water-quality, Fewer tags Data and scripts used in water-quality trend and load analysis in the Heart River Basin, North Dakota, 1970-2020 A comprehensive study to evaluate salinity and nutrient conditions in the Heart River Basin, North Dakota was completed by the U.S. Geological Survey (USGS) in cooperation with the Natural Resources Conservation Service and the Grant County Soil Conservation District. In this dataset three zipped folders are provided which contain all files necessary to run trend, load, and geochemical models and produce results published in U.S. Geological Scientific Investigations Report 2022-5013 [Tatge, W.S., Nustad, R.A., and Galloway, J.M., 2022, Evaluation of Salinity and Nutrient Conditions in the Heart River Basin, North Dakota, 1970-2020: U.S. Geological Survey Scientific Investigations Report 2022-5013]. In addition,... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geochemistry, Heart River, Loads, North Dakota, Trends, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Fewer tags « 1 2 3 4 »