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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 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 Streamgage and basin outline shapefiles for the Red River of the North This data shows select streamgage locations throughout the Red River of the North Basin upstream of Emerson, Manitoba, and basin outlines for eight subbasins.. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Crookston, Emerson, Fargo, Halstad, Kindred, All tags... Manitoba, Minnesota, Neche, North Dakota, Pembina River, Red Lake River, Red River of the North, Sheyenne River, phosphorus, surface water quality, Fewer tags Reservoir storage for selected Chesapeake Bay watersheds This dataset contains values of normal reservoir storage in units of acre-feet per km2, for three time periods: 1992, 2002, and 2012. Values are derived from a slightly-modified version of the National Inventory of Dams (NID) 2013 dataset, for which approximately 10% of records had the dam completion date estimated. 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, dams, reservoir storage, surface water quality, Fewer tags Static soils, climate, hydrologic, topographic, and geographic characteristics for selected Chesapeake Bay watersheds This dataset contains values of soils, climate, hydrologic, topographic, and other geographic characteristics such as drainage area. These are considered "static" characteristics, which do not change over the time period of this study. 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, climate, geographic characteristics, hydrology, soils, surface water quality, Fewer tags Seasonal precipitation for selected Chesapeake Bay watersheds This dataset provides estimates of annual and seasonal precipitation for selected Chesapeake Bay watersheds. Season 1 is November-February; season 2 is March-June; and season 3 is July-October. 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, precipitation (atmospheric), surface water quality, Fewer tags Total Phosphorus Flux/Load Estimates Red River of the North Basin The dataset contains estimates of annual flow and annual flux in kilograms for six sites in the Red River of the North Basin (identified as basin 1, 2, 3, 4, 5, and 8). The shape files that are part of this data release document the basins and the streamgage locations are also provided in an associated shape file. 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, Fewer tags Water-quality trends and trend component estimates for the Nation's rivers and streams using Weighted Regressions on Time, Discharge, and Season (WRTDS) models and generalized flow normalization, 1972-2012 Nonstationary streamflow due to environmental and human-induced causes can affect water quality over time, yet these effects are poorly accounted for in water-quality trend models. This data release provides instream water-quality trends and estimates of two components of change, for sites across the Nation previously presented in Oelsner et al. (2017). We used previously calibrated Weighted Regressions on Time, Discharge, and Season (WRTDS) models published in De Cicco et al. (2017) to estimate instream water-quality trends and associated uncertainties with the generalized flow normalization procedure available in EGRET version 3.0 (Hirsch et al., 2018a) and EGRETci version 2.0 (Hirsch et al., 2018b). The procedure... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Contiguous United States and Puerto Rico, USGS Science Data Catalog (SDC), United States, biota, carbon, All tags... concentration, loads (fluxes), major ions, nutrients, rivers, salinity, sediment, streams, surface water quality, water-quality trends, Fewer tags National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and... Types: Citation; Tags: Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, Bay/Inlet, All tags... Boundaries, Boundary, Bridge, Canal/Ditch, Coastline, Connector, Dam/Weir, Drainage area for surface water, Estuary, FileGDB, Flow direction network, Flume, ForeShore, Gaging Station, Gate, GeoPackage, HU10, HU12, HU14, HU16, HU2, HU4, HU6, HU8, HUC, Hazard Zone, Hydrographic, Hydrography, Hydrologic Unit, Hydrologic Unit Code, Hydrologic Units, Ice mass, Inundation Area, Lake, Levee, Line, Lock Chamber, Marsh, NHDPlus High Resolution (NHDPlus HR), Nonearthen Shore, Playa, Point, PointEvent, Pond, Rapids, Reach, Reach code, Reef, Region, Reservoir, River, Rock, Sea/Ocean, Sink/Rise, Sounding Datum Line, Special Use Zone, Special Use Zone Limit, Spillway, Stream, Stream/River, Submerged Stream, Swamp, Topographic, Tunnel, US, USGS:0826ab39-e5bd-47e6-ba8f-56f340094f81, Underground Conduit, United States, WBD, Wall, Wash, Water Intake Outflow, Waterfall, Watershed, Watershed Boundaries, Watershed Boundary Dataset, Well, artificial path, boundaries, cartography, catchment, dams, digital elevation models, drainage basins, drainage systems and characteristics, earth sciences, elevation, environment, geographic information systems, geoscientificInformation, geospatial analysis, hydrographic datasets, hydrology, imageryBaseMapsEarthCover, inlandWaters, land surface characteristics, river reaches, streamflow, streamflow data, surface water, surface water quality, surface water systems, topography, water resources, watersheds, Fewer tags Conservation Reserve Program Estimates Red River of the North Basin These data report the percent of crop acreage, within each basin (basins 1-8, see accompanying shapefiles), enrolled in the Conservation Reserve Program (CRP). Categories: Data; Types: Citation; Tags: Crookston, Emerson, Fargo, Halstad, Kindred, All tags... Manitoba, Minnesota, Moorhead, Neche, North Dakota, Pembina River, Red Lake River, Red River of the North, Sheyenne River, South Dakota, phosphorus, surface water quality, Fewer tags Wheat Corn Soy Estimates Red River of the North Basin These data describe the percent of cropland harvested as wheat, corn, and soybean within each basin (basins 1-8, see accompanying shapefiles). Data are available for other crops; however, these three were chosen because wheat is a traditional crop that has been grown for a long time in the Basin and corn and soybeans have increased in recent times because of wetter conditions, the demand for biofuels, and advances in breeding short-season, drought-tolerant crops. The data come from the National Agricultural Statistics Service (NASS) Census of Agriculture (COA) and have estimates for 1974, 1978, 1982, 1986, 1992, 1997, 2002, 2007, and 2012. Years with missing data were estimated estimated using multivariate imputation... Categories: Data; Types: Citation; Tags: Crookston, Emerson, Fargo, Halstad, Kindred, All tags... Manitoba, Minnesota, Moorhead, Neche, North Dakota, Pembina River, Red Lake River, Red River of the North, Sheyenne River, South Dakota, agriculture, multivariate statistical analysis, phosphorus, surface water quality, Fewer tags High-speed, continuous water quality mapping of Utah Lake, Salt Lake City, UT Real-time, high frequency (1-second sample interval), georeferenced water quality data was collected in Utah Lake, Utah. Utah Lake is located approximately 45 miles south of Salt Lake City, Utah, and approximately 5 miles west of Provo, Utah. Data was collected on 8/10/16 over an approximate 6.5-hour period (8:00 – 14:30 h PST) while underway. Sample water was continuously pumped through a pickup tube mounted at the stern of the vessel. Sample was pre-filtered using a 178 um in-line strainer, passed through a de-bubbler, and diverted through a 0.2 micron filter to various water quality instrumentation. Data was handled by a Campbell Scientific CR-6 data logger and recorded continuously to a Microsoft Excel file.... Categories: Data; Types: Citation; Tags: Provo, Salt Lake City, USGS Science Data Catalog (SDC), United States, Utah, All tags... Utah Lake, algae, chlorophyll a, nitrate nitrogen, nitrogen, real-time data, surface water quality, water quality, Fewer tags Chesapeake Bay non-tidal network shapefiles for selected watershed boundaries This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN). Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, surface water quality, total nitrogen, total phosphorus, Fewer tags High-speed mapping of water isotopes and residence time in Cache Slough Complex, San Francisco Bay Delta, CA Real-time, high frequency (1-second sample interval) GPS location, water quality, and water isotope (δ2H, δ18O) data was collected in the Cache Slough Complex (CSC), located in the northern San Francisco Bay Delta (SFBD). Data was collected on 10/01/2014 for an approximate 4-hour period (10:30 – 14:30 h PST) while underway on the R/V Mary Landsteiner, a 26-foot USGS vessel. Sample water was pumped continuously through a pickup tube, passed through a 178 micron pre-filter, a de-bubbler, and diverted through a 0.2 micron filter and an unfiltered flow path to water quality instrumentation. The real-time data were recorded using a Campbell Scientific CR-6 data logger. Water isotopes (δ2H, δ18O) were logged to a separate... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Cache Slough, Ecology, Geochemistry, Hydrogeology, All tags... Liberty Cut, Liberty Island, Lindsey Slough, Little Holland Tract, Prospect Slough, Sacramento River, Sacramento-San Joaquin Delta, Shag Slough, Toe Drain, USGS Science Data Catalog (SDC), algae, chlorophyll a, hydrodynamics, isotopes, nitrate nitrogen, nitrogen, real-time data, surface water quality, Fewer tags Water Quality Profiles for Bushy Park Reservoir The Bushy Park Reservoir is a relatively shallow impoundment in a semi-tropical climate and is the principal water supply for the 400,000 people of the City of Charleston and the surrounding areas including the industries in the Bushy Park Industrial Complex. Although there is an adequate supply of freshwater in the reservoir, there are taste-and-odor water-quality concerns. The U.S. Geological Survey (USGS) worked in cooperation with the Charleston Water System to study the hydrology and water-quality of the Bushy Park Reservoir to identify factors affecting water-quality conditions. This data release is for water-quality profiles collected with a hand-held calibrated field meter from a manned boat concurrent with... Categories: Data; Types: Citation; Tags: Back River, Berkeley County, SC, hydrology, limnology, phycocyanin fluorescence, specific conductance, All tags... surface water quality, total chlorophyll fluorescence, turbidity, water chemistry, water temperature, Fewer tags Chesapeake Bay non-tidal network shapefiles for selected station locations This metadata report documents a shapefile of 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN). Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, surface water quality, total nitrogen, total phosphorus, Fewer tags Nitrogen and phosphorus, other water quality parameters, and sediment temperature data for Incline Creek and Marlette Creek stream-lake interface, Lake Tahoe, Nevada, September 2013. This data set contains the following parameters: sediment and water temperature, dissolved nitrate plus nitrite dissolved, ammonium, total Kjeldahl nitrogen, soluble orthophosphate, dissolved phosphorus, total phosphorus, and dissolved organic carbon. Categories: Data; Types: Citation; Tags: Incline Creek Marlette Creek, Lake Tahoe, Washoe County, Surface water quality, USGS Science Data Catalog (SDC), Water Quality Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds The dataset contains estimates for total nitrogen and total phosphorus loads from point sources, combined sewer overflows, wastewater treatment plants that discharge to surface water for selected Chesapeake Bay watersheds. For source information, please refer to the process steps in this metadata report. 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, nitrogen, nutrient content (water), phosphorus, surface water quality, wastewater discharge, Fewer tags Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds These data report the percent of agricultural land, within each selected Chesapeake Bay watershed, that is enrolled in the Conservation Reserve Program (CRP), based on county-level data for each year from the U.S. Department of Agriculture Farm Service Agency. 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, agriculture, land use change, surface water quality, Fewer tags Estimates of inorganic nitrogen deposition from precipitation for selected Chesapeake Bay Watersheds This dataset contains estimates of the yearly sum of nitrogen atmospheric deposition of inorganic nitrogen in selected Chesapeake Bay watersheds from 1985-2012. Data for 1985-2012 were downloaded from the National Atmospheric Deposition Program. Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, Maryland, New York, All tags... Pennsylvania, Virginia, West Virginia, atmospheric deposition (chemical & particulate), surface water quality, total nitrogen, Fewer tags 1 2 »