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Percent impervious surface for selected Chesapeake Bay watersheds This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients derived from comparing land use of the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset. Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, impervious surfaces, surface water quality, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 0696 This metadata record describes the materials contained in stake folder 696. Stake 696 is located at latitude 36.39889, longitude -112.63056. This location was photographed in the following years: 1872, 1968 and 1972. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 0713 This metadata record describes the materials contained in stake folder 713. Stake 713 is located at latitude 36.42478, longitude -112.63036. This location was photographed in the following years: 1872 and 1968. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 2595 This metadata record describes the materials contained in stake folder 2595. Stake 2595 is located at latitude 36.392, longitude -112.629. This location was photographed in the following years: 1942 and 1993. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date (e.g.,... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 1506 This metadata record describes the materials contained in stake folder 1506. Stake 1506 is located at latitude 36.38585, longitude -112.63963. This location was photographed in the following years: 1909 (no physical image) and 1990. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 3. Detailed information on calculations of environmental tracer data. High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C and 4Herad) of groundwater age from 80 public-supply wells (PSWs). Groundwater ages were estimated by calibration of tracers to lumped parameter models and ranged from modern (1 Myr) in the most downgradient, confined portions of the potable system. More than 80 and 40 percent of mean groundwater ages were older than 1000 and 50,000 yr, respectively. Anoxic, Fe-reducing conditions and increased mineralization develop with time in the aquifer system and mobilize Ra into solution resulting in the frequent occurrence of combined... Categories: Data; Types: Citation; Tags: Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, All tags... NAWQA, Wisconsin, alpha recoil, cycle 3, dissolved gas, groundwater age, lumped parameter modeling, nawqa, radium, radium 226 distribution coefficient, recharge temperature, water quality, Fewer tags Bathymetry hillshade--Offshore of Point Conception Map Area, California This part of DS 781 presents data for bathymetry for several seafloor maps of the Offshore of Point Conception Map Area, California. The vector data file is included in "BathymetryHS_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. Shaded-relief bathymetry of the Offshore of Point Conception map area in southern California was generated largely from acoustic-bathymetry data collected by Fugro Pelagos Inc. Acoustic mapping was completed in 2008 using a combination of 400-kHz Reson 7125, 240-kHz Reson 8101, and 100-kHz Reson 8111 multibeam echosounders. Bathymetric-lidar data was collected in the nearshore area by the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Oceans > Bathymetry/SeafloorTopography > Bathymetry, Oceans > Bathymetry/SeafloorTopography > Seafloor Topography, Pacific Ocean, Point Conception, Santa Barbara County, All tags... State of California, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Lake Bistineau Flood Map Files Heavy rainfall occurred across Louisiana during March 8-19, 2016, as a result of a massive, slow-moving southward dip in the jet stream, which moved eastward across Mexico, then neared the Gulf Coast, funneling deep tropical moisture into parts of the Gulf States and the Mississippi River Valley. The storm caused major flooding in north-central and southeastern Louisiana. Digital flood-inundation maps for a 20.1-mile reach within the community of Minden near Lake Bistineau in Bossier Parish and Bienville Parish, LA was created by the U.S. Geological Survey (USGS) in cooperation with Federal Emergency Management Agency (FEMA) to support response and recovery operations following a March 8-19, 2016 flood event. The... Types: Citation; Tags: Bienville Parish, Bossier Parish, Lake Bistineau, Loggy Bayou, Louisiana, All tags... Minden, flood, flood-inundation maps, geospatial analysis, river/stream, Fewer tags Wastewater Treatment Plant Total Phosphorus Flux Load Estimates Red River of the North Basin The dataset contains estimates for total phosphorus flux from wastewater treatment plants that discharge to surface water within the Red River of the North Basin in the United States and subbasins. Shapefiles defining the subbasins are available as part of the same data release in which these data are published. Estimates of wastewater treatment plant total phosphorus flux (or load) were calculated by Tammy Ivanhnenko for the years 1978, 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1996, 2000, 2004, 2008, and 2012. Flux estimates were based on the average discharge from the wastewater treatment plants and treatment level, both reported as part of the U.S. Environmental Protection Agency's Clean Watershed Needs Survey,... Categories: Data; Types: Citation; Tags: Crookston, Emerson, Fargo, Halstad, Kindred, All tags... Minnesota, Moorhead, Neche, North Dakota, Pembina River, Red Lake River, Red River of the North, Sheyenne River, South Dakota, nutrient content (water), surface water quality, total phosphorus, wastewater discharge, Fewer tags Amite River Flood Map Files Heavy rainfall occurred across Louisiana during March 8-19, 2016, as a result of a massive, slow-moving southward dip in the jet stream, which moved eastward across Mexico, then neared the Gulf Coast, funneling deep tropical moisture into parts of the Gulf States and the Mississippi River Valley. The storm caused major flooding in north-central and southeastern Louisiana. Digital flood-inundation maps for a 28-mile reach within the communities of Port Vincent, French Settlement, and Maurepas near the Amite River in Livingston and Ascension Parishes, LA was created by the U.S. Geological Survey (USGS) in cooperation with Federal Emergency Management Agency (FEMA) to support response and recovery operations following... Types: Citation; Tags: boundaries, elevation, inlandWaters USGS Southwest Repeat Photography Collection: Kanab Creek, southern Utah and northern Arizona, 1872-2010: Stake 2411 This metadata record describes the materials contained in stake folder 2411. Stake 2411 is located at latitude 36.426, longitude -112.639. This location was photographed in the following years: 1872, 1968 and 1995. The materials associated with this item include original best quality images from each repeat date (preserved as digitized film images or in some cases digitized print photographs, depending on availability), scanned film envelopes with camera metadata, records of repeat photography sheets, and all field notes and/or camera notes associated with this stake. All attachments follow the following naming convention: stake_date_material_type_Kanab. Some stakes will have multiple materials from one repeat date... Types: Citation; Tags: Albion camera, Colorado River, Dallmeyer lenses, Kanab Creek, Southwestern United States, All tags... Stanton expedition, camera station, climate change, deserts, ecosystem change, geomorphology, historic photographs, land surface characteristics, landscape change, negatives, northern Arizona, orthochromatic film, repeat photography, southern Utah, transparencies, vegetation, wetland ecosystems, wetlands, Fewer tags Sandhill crane roosts use, channel characteristics, and environmental variables along the Platte River, Nebraska, 2003-2007 The central Platte River Valley represents a key mid-latitude stopover This dataset supports a contemporary analysis of nocturnal roost selection for sandhill cranes staging along the Platte River during 2003-2007. We explored variation in selection for previously established characteristics of roost sites, including river channel width, vegetation height along the river bank, and distance to nearest disturbance feature. This analysis also included novel environmental factors (yearly estimates of corn near roost sites, nightly temperature, wind speed, and river discharge) and how they may interact with the more established characteristics. Categories: Data; Types: Citation; Tags: animal tracking, biota, birds, environment, fUS31 = Nebraska, All tags... habitat selection, migratory birds, q45086NWA3 = Platte River, roosting behavior, roosts, Fewer tags Seafloor character--Offshore of Point Conception Map Area, California This part of DS 781 presents data for the Seafloor character map of the Offshore of Point Conception Map Area, California. The vector data file is included in "SeafloorCharacter_OffshorePointConception.zip," which is accessible from https://doi.org/10.5066/F7QN64XQ. This raster-format seafloor-character map shows four substrate classes in the Offshore of Point Conception map area, California. The substrate classes mapped in this area have been colored to indicate which of the following California Marine Life Protection Act depth zones and slope classes they belong: Depth Zone 2 (intertidal to 30 m), Depth Zone 3 (30 to 100 m), Depth Zone 4 (100 to 200 m), Depth Zone 5 (deeper than 200 m), Slope Class 1 (0 degrees... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Oceans > Bathymetry/SeafloorTopography > Bathymetry, Oceans > Bathymetry/SeafloorTopography > Seafloor Topography, Pacific Ocean, Point Conception, Santa Barbara County, All tags... State of California, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Experimental Design Plant and Soil Measurement Data for Achnatherum hymenoides from a warming experiment, Colorado Plateau, 2011 - Data These plant and soil data were collected by Timothy M. Wertin and Sasha C. Reed in the spring, summer, and fall of 2011 at a climate manipulation experiment site near Moab, UT (38.521411, -109.470567). These data were collected to assess how warming affects leaf photosynthesis, soil CO 2 efflux, and soil chemistry in plots of ambient and warming treatments. Types: Citation; Tags: Achnatherum hymenoides, Ambient air temperature, Ambient relative humidity, Colorado Plateau, Foliar gas exchange, All tags... Grand County, Indian ricegrass, Leaf intercellular CO2 concentration, Leaf temperature, Meteorology, Moab, Photosynthesis, Photosynthetically active radiation, Plant biomass, Precipitation, Reproductive inflorescence, Soil CO2 efflux, Soil nutrients, Soil temperature, Soil volumetric water content, Southwestern United States, Stomatal conductance, USGS Science Data Catalog (SDC), United States, Utah, Fewer tags 1. Evapotranspiration (ET) at Dead River forested wetland site, 30-minute data, Hillsborough County, Florida, December 2009 - February 2016 The data set consists of evapotranspiration measurements made at the USGS Dead River forested wetland climate station beginning November 21, 2009 and ending February 29, 2016. Annual ET rates corrected to a near-surface energy-budget varied from 1448 mm (2012) to 1614 mm (2010). The eddy-covariance method was used, with high-frequency sensors installed above the forest canopy to measure sensible and latent heat fluxes. Ancillary meteorological data are also included in the data set: net radiation, soil temperature and moisture, air temperature, relative humidity, wind speed and direction, rainfall, and ground-water levels. Data were collected at 30-minute resolution, with evapotranspiration corrected to the near-surface... Types: Citation; Tags: Evapotranspiration, Florida, Hillsborough, forested wetland, latent heat flux, All tags... net radiation, surface energy budget, west-central Florida, Fewer tags Daily precipitation data for Pico Roncador, Río Tanamá and La Mira stations, Puerto Rico, March 2009 to March 2011 The U.S. Geological Survey, in cooperation with the Puerto Rico Department of Natural and Environmental Resources, completed a study to determine whether a relation exists between the extent of forest cover and the magnitude of base flow at two sets of paired drainage basins in the highlands of the municipalities of Adjuntas and Utuado within the mountainous interior of Puerto Rico. One set of paired basins includes the Río Guaónica and Río Tanamá, both tributaries of the Río Grande de Arecibo. The other set includes two smaller basins in the drainage basin of the Río Coabey, which is a tributary of the Río Tanamá. The paired basins in each set have similar rainfall patterns, geologic substrate, and aspect; the... Categories: Data; Types: Citation; Tags: Adjuntas, Puerto Rico, Río Guaónica, Río Tanamá, Utuado, All tags... precipitation, Fewer tags Velocity Mapping at the confluence of the Illinois River and Fox River near Ottawa, IL ADCP data were collected on November 4, 2015 at the confluence of the Illinois River and Fox River near Ottawa, IL using a Teledyne Rio Grande 1200 kHz Acoustic Doppler Current Profiler with integrated Trimble Ag162 GPS. ADCP data was collected in reciprocal pairs along cross-sections. The data are provided in: (1) a zipped folder containing classic ascii output files exported from WinRiverII software, and a README text file indicating which files are reciprocal pairs (2) a zipped folder containing KML files for each transect. Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fox River, Illinois, Illinois River, Ottawa, IL, surface water (non-marine), All tags... velocity, Fewer tags Bathymetric survey of the Brandon Road Dam Spillway, Joliet, Illinois Bathymetric survey data of the Brandon Road Dam spillway was collected on May 27 and May 28, 2015 by the US Geological Survey (USGS) using Trimble Real-Time Kinematic Global Positioning System (RTK-GPS) equipment. The base station was set up over a temporarily installed survey pin on both days. This pin was surveyed into an existing NGS benchmark (PID: BBCN12) within the Brandon Road Lock property. In wadeable sections, a GPS rover with 2.0 meter range pole and flat-foot was deployed. In sections unable to be waded, a 2.0 meter range pole was fix-mounted to a jon boat, and a boat-mounted Acoustic Doppler Current Profiler (ADCP) was used to collect the depth data. ADCP depth data were reviewed in the WinRiver II... Types: Citation; Tags: Brandon Road Lock and Dam, Des Plaines River, GPS measurement, Illinois, USGS Science Data Catalog (SDC), All tags... Water Resources, Will County, acoustic doppler current profiling, bathymetry, Fewer tags Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (input) In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS also has collected long-term water-quality data to support additional assessments of changing water-quality conditions. These data have been combined to provide insight into how natural features and human activities have contributed... Categories: Data; Types: Citation; Tags: United States, pesticides, streamflow, trends, usgsnawqaswtrends, All tags... water quality, Fewer tags Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(output) In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS and other Federal, State, and local agencies also have collected long-term water-quality data to support their own assessments of changing water-quality conditions. Data from these multiple sources have been combined to support... Categories: Data; Types: Citation; Tags: Puerto Rico, United States, WRTDS, carbon, discharge, All tags... nutrients, rivers, salinity, sediment, trends, usgsnawqaswtrends, weighted regression, Fewer tags 1 2 3 4 5 ... »