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Lake Erie Tributaries: Nutrient and streamflow trend results This data set includes WRTDS nutrient flux trend results and the values of daily streamflow trend results displayed in the Quantile-Kendall plots. For 1995-2015 nutrient trends, the method of generalized flow normalization (FNG) was used which explicitly addresses non-stationary streamflow conditions. For 2005-2015 nutrient trends, the WRTDS trend analyses used the method of stationary flow normalization (FNS) because streamflow nonstationarity is difficult to assess over this shorter duration time frame. The 1995-2015 annual nutrient trends were determined for all five nutrient parameters (TP, SRP, TN, NO23, TKN), and monthly trends were evaluated only for SRP. The 2005-2015 annual nutrient trends were determined... Categories: Data; Tags: Great Lakes, Indiana, Lake Erie, Michigan, Ohio, All tags... Weighted regression on time, discharge, and season (WRTDS), Western Lake Erie, environment, geoscientificInformation, nitrate, nitrogen, nutrient, phosphorus, streamflow, trend, water quality, Fewer tags Chesapeake Bay River Input Monitoring Network 1985-2019: WRTDS output data Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags 1) Best management practice implementation in the Chesapeake Bay watershed from 1985 to 2014 This metadata record documents 11 comma delimited tables representing the amount of reported best management practice (BMP) implementation for the years from 1985 to 2014 at three geographic scales: county or land-river modeling segment, River Input Monitoring (RIM) station drainage areas, and the entire Chesapeake Bay Watershed (CBWS). Data originated from the Chesapeake Bay Watershed jurisdictions including Maryland, Pennsylvania, Virginia, Delaware, New York, West Virginia, and the District of Columbia. Data were reported to the Chesapeake Bay Program for an annual review of progress toward meeting nitrogen, phosphorus, and sediment reduction goals. Categories: Data; Tags: Animal, Appomattox River, BMP, Best management practice, Chesapeake Bay, All tags... Chesapeake Bay watershed, Choptank River, Conservation practice, Delaware, District of Columbia, Isolation scenarios, James River, Land use, Land use change, Load reduction, Maryland, Mattaponi River, New York, Nitrogen, Non-RIM Eastern Shore, Non-RIM Western Shore, Nutrient sources, Pamunkey River, Patuxent River, Pennsylvania, Phosphorus, Potomac River, Rappahannock River, Sediment, Susquehanna River, USA, United States, Virginia, Watershed Model, West Virginia, Fewer tags Dataset of water boundaries intersected with MRB_RF1 reach flowlines This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in Tennessee streams. These data support the publication containing the Tennessee SPARROW models results (Hoos and others, 2019) and include model input used in the South Atlantic-Gulf Drainages and Tennessee River Basin (SAGT) nutrient SPARROW models (Hoos and McMahon, 2009; Garcia and others, 2011) as well as model input for river basins in Tennessee not included in the domain of the published SAGT SPARROW models. Also included in this data release are model coefficients, the software required to execute the Tennessee SPARROW... Categories: Data; Tags: SPARROW, Tennessee, nitrogen, nutrients, phosphorus, All tags... surface-water quality, Fewer tags Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2018 (ver. 2.0, May 2020) Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability in river discharge.... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Global Geochemical Database for Critical Minerals in Archived Mine Samples The Critical Minerals in Archived Mine Samples Database (CMDB) contains chemistry and geologic information for historic ore and ore-related rock samples from mineral deposits in the United States. In addition, the database contains samples from archetypal deposits from 27 other countries in North America, South America, Asia, Africa and Europe. Samples were obtained from archived ore collections under the U.S. Geological Survey's project titled "Quick Assessment of Rare and Critical Metals in Ore Deposits: A National Assessment" (2008 to 2013) in an effort to begin an assessment of the Nations' previously mined ore deposits for critical minerals. Mineralized and altered rock samples were provided by the Colorado... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Argentina, Arizona, Arkansas, Australia, All tags... Brazil, Burma, California, Canada, Chile, China, Colorado, Cuba, Democratic Republic of Congo, Economic Geology, Finland, Geochemistry, Germany, Honduras, Idaho, India, Indonesia, Japan, Kansas, Kentucky, Maine, Mauritania, Mexico, Michigan, Mineral Resources, Minnesota, Missouri, Montana, NGDB, Namibia, National Geochemical Database, Nevada, New Jersey, New Mexico, New York, North Carolina, Norway, Oklahoma, Oregon, Papua New Guinea, Pennsylvania, Peru, Philippines, Poland, Portugal, Russia, South Africa, South Carolina, South Dakota, Sweden, Tennessee, Texas, USGS Science Data Catalog (SDC), United States, Utah, Vietnam, Virginia, Washington, Wisconsin, Wyoming, Zambia, aluminum, antimony, arsenic, atomic emission spectroscopy, barium, beryllium, bismuth, boron, cadmium, calcium, cerium, chemical analysis, chromium, cobalt, copper, critical minerals, dysprosium, economic geology, erbium, europium, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientific information, germanium, gold, hafnium, historic ores, holmium, indium, iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, metallic mineral resources, mineral deposit type, mineral deposits, mineralogy, molybdenum, neodymium, nickel, niobium, nonmetallic mineral resources, palladium, phosphorus, platinum, potassium, praseodymium, rhenium, rock geochemistry, rocks and deposits, samarium, scandium, silicon, silver, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, uranium, vanadium, ytterbium, yttrium, zinc, zirconium, Fewer tags Whole rock major, minor, and trace element geochemistry of the upper part of the Mount Emmons-Redwell porphyry molybdenum (Climax-type) deposit, Redwell Basin, Crested Butte, Colorado This U.S. Geological Survey (USGS) data release provides whole rock major, minor, and trace element geochemical data from the fluorine-rich Mount Emmons-Redwell porphyry molybdenum (Climax-type) deposit (Mt. Emmons-Redwell deposit), located approximately 5.6 km (3.5 mi) northwest of Crested Butte, Colorado. The Mt. Emmons-Redwell deposit partly underlies Redwell Basin on the northwest flank of Mount Emmons in the west-central region of the Colorado Mineral Belt. Mineralization of the Mt. Emmons-Redwell deposit occurs at depth as vein, veinlet, stockwork, and fracture-hosted Climax-type mineralization [308 Mt at 0.32% Mo (Galey, 1978; Guarnera and Anderson, 2007)], and is associated with the Mt. Emmons igneous complex.... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: <1GB, Climax-type deposit, Colorado, Colorado Mineral Belt, Crested Butte, All tags... Elk Mountains, Geology, Geophysics, and Geochemistry Science Center (GGGSC), Gunnison County, Mineral Resources Program (MRP), Mount Emmons, Mt. Emmons-Redwell deposit, Oh-be-joyful Creek, Redwell Basin, Redwell Creek, USGS Science Data Catalog (SDC), United States, aluminum, analytical chemistry, antimony, arsenic, atomic emission spectroscopy (AES), barium, beryllium, bismuth, boron, cadmium, calcium, cerium, cesium, chemical analysis, chromium, cobalt, copper, dysprosium, economic geology, erbium, europium, exploration geochemistry, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientificInformation, germanium, hafnium, holmium, igneous rocks, indium, inductively coupled plasma-optical emission-mass spectroscopy (ICP-OES-MS), iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, mass spectroscopy, mineral deposits, mineral resources, molybdenum, neodymium, nickel, niobium, phosphorus, plutonic rocks, porphyry deposit, potassium, promethium, rock chemistry, rubidium, samarium, scandium, sedimentary rocks, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, uranium, vanadium, wavelength dispersive X-ray fluorescence spectrometry (WDXRF), x-ray fluorescence, ytterbium, yttrium, zinc, zirconium, Fewer tags Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem density by species are used to calculate above ground biomass and above ground productivity. Percent cover is used to asses the forest canopy health. The data collected for the soils are: bulk density, percent total Nitrogen, percent total Carbon, and selected samples percent total Phosporus. The forest structure plots were placed in... Categories: Data; Types: Citation; Tags: Avicennia germinans, Carbon, Collier County, Conocarpus erectus, Ecology, All tags... Environmental Health, Florida, Goodland, Laguncularia racemosa, Nitrogen, Phosphorus, Rhizophora mangle, USA, USGS Science Data Catalog (SDC), bulk density, diameter at breast height (dbh), mangrove, percent cover, soils, spherical densiometer, tree height, Fewer tags Phosphorus, nitrogen, carbon, calcium, pH, and dissolved oxygen data from incubations of Colorado River water and sediment and associated ambient river water measurements Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus cycling below Lake Powell in the Colorado River and from storm inputs from the Paria River. Objectives of our study were to determine how several forms of phosphorus, both organic and inorganic, were cycled under varying dissolved oxygen concentrations and pH, reflecting the range of values observed in the river over the years. These data represent nitrogen, phosphorus, calcium, and carbon concentrations, water quality parameters (pH, dissolved oxygen, temperature), sediment composition, total protein, and extracellular enzyme activity (alkaline phosphatase).... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geochemistry, All tags... Geography, Glen Canyon, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, Hydrology, Information Sciences, Lake Mead National Recreation Area, Lake Powell, Lees Ferry, Limnology, Little Colorado River, Paria River, Pearce Ferry, USGS Science Data Catalog (SDC), alkaline earth elements, alkaline phosphatase, atomic emission spectroscopy, biochemistry, biota, bulk density, calcite, calcium carbonate, carbon, chemical analysis, chemical attributes, dam, data release, dissolved oxygen concentrations, dissolved oxygen optodes, dissolved phosphorus concentrations, environment, extracellular enzyme activity, field experiments, freshwater ecosystems, incubations, inductively coupled plasma, inlandWaters, laboratory bottle incubations, laboratory experiments, nitrogen, nutrient content (water), nutrient cycling, organic matter, oxygen content (water), phosphorus, phosphorus content, phosphorus cycling, river systems, river water quality, riverine phosphorus cycling, sediment composition, suspended material (water), tailwater, total dissolved nitrogen, total phosphorus concentrations, total protein analysis, unconsolidated deposits, water chemistry, water chemistry data, water pH, water quality, water quality sonde, water samples, water temperature, Fewer tags Great Lakes Restoration Initiative: Nutrient cycling in riverbed sediment in the Maumee River Basin, 2021 Data (ver. 2.0, March 2024) The Maumee River transports huge loads of nitrogen (N) and phosphorus (P) to Lake Erie. The increased concentrations of N and P are causing eutrophication of the lake, creating hypoxic zones, and contributing to phytoplankton blooms. It is hypothesized that the P loads are a major contributor to harmful algal blooms that occur in the western basin of Lake Erie, particularly in summer. The Maumee River has been identified by the United States Environmental Protection Agency as a priority watershed where action needs to be taken to reduce nutrient loads. This study quantified rates of biogeochemical processes affecting downstream flux of N and P by 1) measuring indices of potential sediment P retention and 2) measuring... Categories: Data; Tags: Fort Wayne, Indiana, Maumee River, Michigan, Ohio, All tags... Toledo, Western Lake Erie, biota, denitrification, environment, eutrophication, inlandWaters, nitrification, nitrogen, phosphorus, phosphorus storage, streambed sediment, Fewer tags Plant composition, shrub biomass, and soil biogeochemistry from an experimental drought treatment on the Colorado Plateau These data were compiled for a study that investigated the effects of drought seasonality and plant community composition in a dryland ecosystem. In 2015 U.S. Geological Survey ecologists recorded vegetation and soil moisture data in 36 experimental plots which manipulated precipitation in two plant community types. The experiment consisted of three precipitation treatments: control (ambient precipitation), cool-season drought (-66% ambient precipitation November-April), and warm-season drought (-66% ambient precipitation May-October), applied in two plant communities (perennial grasses with or without a large shrub, Ephedra viridis) over a three-year period. These data were collected from 2015 to 2022 near Canyonlands... Categories: Data; Tags: Achnatherum hymenoides, Botany, C3 photosynthesis, C4 photosynthesis, Canyonlands National Park, All tags... Climatology, Colorado Plateau, Ecology, Ephedra viridis, Geography, Indian ricegrass, Information Sciences, Islands of Fertility, James' galleta, Needles District, Pleuraphis jamesii, Soil Sciences, USGS Science Data Catalog (SDC), USGS:6553a618d34ee4b6e05c3e2b, Utah, ambient precipitation, biogeochemical cycling, biogeochemical data, biogeochemistry, biomass, biota, carbon, carbon concentrations, control treatments, cool-season drought treatments, data release, drought seasonality, droughts, dryland ecosystems, ecosystems, experimental plots, experimental seasonal drought, field inventory and monitoring, field measurements, field sampling, geoscientificInformation, interspace cover estimates, mormon tea, nitrogen, nitrogen concentrations, percent cover estimates, perennial grasses, phosphorus, phosphorus concentrations, photosynthesis, plant community composition, plants (organisms), precipitation (atmospheric), precipitation treatments, shrubland ecosystems, soil cores, soil moisture, soil sciences, soil volumetric water content, southeastern Utah, vegetation, warm-season drought treatments, Fewer tags Chesapeake Bay Nontidal Network 2005-2014: Average Yields Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the nine Chesapeake Bay River Input Monitoring (RIM) stations for the period 1985 through 2015. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Yields (represents the mass of constituent transported from a unit area of a given watershed) are used to compare the export loads from one basin to another. Yield results are obtained by dividing the annual load (pounds) of a given constituent by the respective watershed... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay, load analysis, nitrogen, nutrient content, phosphorus, All tags... suspended sediment, water quality, Fewer tags CO2 concentrations and microbial biomass data derived from incubation experiments on soils collected at Arches National Park in 2017 and 2018 These data were compiled to improve our understanding of how water, carbon (C), nitrogen (N), and phosphorus (P) interact to regulate below ground carbon cycling. Objective(s) of our study were to evaluate how soil heterotrophic carbon cycling responded to inputs of water, C, N, and P individually and interactively on the Colorado Plateau. These data represent soil microbial and CO2 respiration responses to amendments of carbon, nitrogen, phosphorous, and water. Soils were collected at a study site located in Arches National Park in southeastern Utah on 14 August 2017 and again on 17 July 2018 from the upper 10 cm of the soil profile in open spaces among plant canopies after the biological soil crust layer (< 1... Categories: Data; Tags: Arches National Park, Botany, CO2 respiration, Colorado Plateau, Ecology, All tags... Geography, Information Sciences, Moab, Soil Sciences, USGS Science Data Catalog (SDC), Utah, biogeochemical cycling, biological soil crusts, biota, carbon, carbon cycling, carbon dioxide, carbon flux, climate change, data release, dryland ecosystem, geoscientificInformation, heterotrophic soil respiration, laboratory experiments, microbial biomass, nitrogen, nutrients, phosphorus, resource limitation, soil efflux, soil incubation experiments, soil profile, soil resources, soil respiration, southeastern Utah, stoichiometry, terrestrial ecosystems, water, Fewer tags Chesapeake Bay Nontidal Network 1985 – 2018: Daily High-Flow and Low-Flow Concentration and Load Estimates (ver. 1.1, November 2021) Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018 Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). A recently published extension of WRTDS allows users to separate these estimates into high- and low-flow conditions. This data release contains (1) a table of daily high- and low-flow concentration and load estimates for NTN stations between 1985 - 2018 and (2) an R file that contains... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), United States, Virginia, WRTDS, Washington DC, West Virginia, flow separation, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Great Lakes Restoration Initiative Project 49 Fox River Basin 2016 and 2017 Data The Fox River transports elevated loads of nitrogen and phosphorus to Lake Michigan. The increased concentration of N and P causes eutrophication of the lake, creating hypoxic zones and damaging the lake ecosystem.To decrease loading, best management practices (BMPs) have been implemented in the uplands of the basin. Little work has been done, however, to reduce nutrient concentrations in the river. Rivers are capable of removing nutrients through biotic uptake and sediment burial and are able to remove N through denitrification. Identifying and managing these locations of increased nutrient cycling known as “hot spots” may be another mechanism for nutrient mitigation.Our objective was to identify hot spots of N... Categories: Data; Tags: Fox River Basin, Green Bay, Lake Michigan, USGS Science Data Catalog (SDC), agriculture, All tags... best management practices, biota, denitrification, eastern Wisconsin, eutrophication, nitrogen, phosphorus, phosphorus sediment uptake, Fewer tags Input and ouput data from streamflow and water-quality regression models used to characterize streamflow and water-quality conditions in the Upper White River Basin, Colorado, from 2000-2020 This dataset includes input and output data from streamflow and water-quality regression models used to characterize streamflow and water-quality conditions in the Upper White River Basin, Colorado, from 2000 to 2020. All input data, including discrete and continuous streamflow records and discrete concentrations of inorganic nitrogen, total nitrogen, and total phosphorus, were compiled from the U.S. Geological Survey (USGS) National Water Information System (NWIS) database. Input data were used in multiple models including Maintenance of Variance Extension Type 2 (MOVE.2) and Weighted Regressions on Time, Discharge, and Season (WRTDS) to estimate continuous streamflow records, daily concentrations and loads, and... Categories: Data; Tags: datasets, nitrogen, phosphorus, streamflow, utilitiesCommunication, All tags... water quality, Fewer tags Nutrient and Sediment Concentrations, Loads, and Yields in the Upper Macoupin Creek Watershed, Water Years 2018–2021 This data release includes estimates of annual and daily concentrations and fluxes for nitrate plus nitrite, total phosphorus, and suspended sediment for two sites in the Upper Macoupin Creek Basin watershed (UMCB) produced using the Weighted Regressions on Time, Discharge, and Season -- Kalman Filter (WRTDS-K; Zhang and Hirsch, 2019) model in the Exploration of and Graphics for RivEr Trends (EGRET) package (Hirsch and De Cicco, 2015). It also includes a model archive (R scripts in Scripts.zip) used to retrieve and format the model input data and run the model. Input data, for Macoupin Creek at Highway 111 near Summerville, Illinois, and Macoupin Creek at Highway 108 near Carlinville, Illinois (U.S. Geological Survey... Categories: Data; Tags: Macoupin Creek, Nitrate plus nitrite, Nutrients, Phosphorus, Suspended sediment concentration, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Water Resources, Weighted Regression on Time, Discharge, and Season - Kalman, biota, Fewer tags Chesapeake Bay Nontidal Network 1985-2018: Average annual yields Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Yields (represents the mass of constituent transported from a unit area of a given watershed) are used to compare the export loads from one basin to another. Yield results are obtained by dividing the annual load (pounds) of a given constituent by the respective watershed area (acres)... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags Water-quality data for nitrate plus nitrite, total nitrogen, and total phosphorus for sites in Red River of the North basin, 1970–2017 This child page contains 34 csv files, site_qw_nuts, which contain observations of nitrate plus nitrite as nitrogen (npnN), total nitrogen (TN), total phosphorus (TP) for each site . Each file includes date of observation, measured value of water-quality constituent, remark code for the measured value, and site name. Availability of observations of water-quality constituents depended upon collecting agency and varied by site and constituent. Not all sites had observations for all constituents. The format of the csv file (date format and column headings) is designed to meet the specific requirements of file format for R-QWTREND. If csv files are opened directly in excel, the format of the data can change. To ensure... Categories: Data; Tags: Manitoba, Minnesota, North Dakota, Red River of the North, datasets, All tags... nitrogen, nutrient content (water), phosphorus, surface water quality, Fewer tags Names of 10-digit hydrologic unit code (HUC10) watersheds in the state of Tennessee This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in Tennessee streams. These data support the publication containing the Tennessee SPARROW models results (Hoos and others, 2019) and include model input used in the South Atlantic-Gulf Drainages and Tennessee River Basin (SAGT) nutrient SPARROW models (Hoos and McMahon, 2009; Garcia and others, 2011) as well as model input for river basins in Tennessee not included in the domain of the published SAGT SPARROW models. Also included in this data release are model coefficients, the software required to execute the Tennessee SPARROW... Categories: Data; Tags: SPARROW, Tennessee, nitrogen, nutrients, phosphorus, All tags... surface-water quality, Fewer tags 1 2 3 4 5 ... 8 »