489 datasets found
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Federal
Chesapeake Bay River Input Monitoring Network 1985-2023: WRTDS output data
Department of the Interior —
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring... -
Federal
Pore water studies reef flat sediments, Kaneohe Bay, Oahu, HI (NODC Accession 0000271)
National Oceanic and Atmospheric Administration, Department of Commerce —
Geochemical behavior of the upper 70 cm of permeable reef flat sediments on Checker Reef, Oahu, Hawaii was examined using spatial and temporal changes in pore water... -
Federal
Lake Erie Tributaries: Nutrient and streamflow trend results
Department of the Interior —
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... -
Federal
An integrated approach to coupled nutrient and microbial source tracking in an agricultural watershed
U.S. Environmental Protection Agency —
metadata entry for publication. Portions of this dataset are inaccessible because: data uploaded in ScienceHub. They can be accessed through the following means:... -
Federal
Tropical Ozone Transport Experiment – Vortex Ozone Transport Experiment (TOTE-VOTE) DC-8 In Situ Trace Gas Data
National Aeronautics and Space Administration —
TOTE-VOTE_TraceGas_AircraftInSitu_DC8_Data_1 is the in situ trace gas data collected onboard the DC-8 aircraft as part of the Tropical Ozone Transport Experiment –... -
Federal
Gulf Coast Network 1976-2023 Water Quality Data from Ten Park Projects as of 2024-03-06
Department of the Interior —
This data package was created 2024-10-17 13:01:06 by NPSTORET and includes selected project, location, and result data. Data contained in the Gulf Coast Network... -
Federal
Chesapeake Bay Nontidal Network 1985-2020: Average annual yields (ver. 2.0, January 2023)
Department of the Interior —
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring... -
Federal
Cyanobacterial nitrogen fixation and phosphorus scavenging during a HAB forming
U.S. Environmental Protection Agency —
Sequence data retrieved from RNA sequences for primer design. This dataset is associated with the following publication: Lu, J., B. Zhu, I. Stuewing, N. Xu, and S.... -
Federal
Water-quality and preceding precipitation data for low-flow and storm-event samples collected in Johnson County, Kansas, from January 2015 through November 2018
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides selected discretely measured water-quality data collected from 27 monitoring sites in Johnson County, Kansas,... -
Federal
SRM 2693a Bituminous Coal (Nominal Mass Fraction 0.5 % Sulfur) Data
National Institute of Standards and Technology —
SRM 2693a Electronic files containing assigned values and their uncertainties, and the data used to assign those values. -
Federal
SGS-LTER Ecosystem Stress Area - Soil Carbon & Nitrogen in shortgrass steppe on the Central Plains Experimental Range in Nunn, Colorado, USA 1991, ARS Study Number 3
Department of Agriculture —
This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State... -
Federal
Hydrologic and Water Quality Data from the Cedar River and Cedar River Alluvial Aquifer, Linn County, IA, 1990-2019
Department of the Interior —
Surface and groundwater samples were collected, processed, and analyzed for pesticides, nutrients, organic carbon, and inorganics as part of a cooperative study with... -
Federal
Nitrogen Source Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Mandan, North Dakota
Department of Agriculture —
Nitrogen Source Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Mandan, North Dakota Use of dietary amendments to reduce... -
Federal
Specific Water Quality Sites for Morgan County, Utah
Department of the Interior —
This map shows specific water-quality items and hydrologic data site information which come from QWDATA (Water Quality) and GWSI (Ground Water Information System).... -
Federal
Microbial Community and N-cycling gene abundance from Ponds and Groundwater on Cape Cod, MA (2015 - 2018)
Department of the Interior —
Surface water, pore water, pond bottom sediments, and groundwater were sampled within and downgradient from five groundwater flow-through ponds that ranged from... -
Federal
Shapefile of Tennessee RF1 Catchments and Catchment Attributes
Department of the Interior —
This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total... -
Federal
Great Lakes Restoration Initiative Project 49 Fox River Basin 2016 and 2017 Data
Department of the Interior —
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,... -
Federal
Catchment-Level Predictions of Nitrogen and Phosphorus Fertilizer Use from Commercial Fertilizer Sales Data for the Conterminous U.S., 2012
Department of the Interior —
This dataset contains catchment-level estimates of nitrogen and phosphorus fertilizer use, for agricultural lands, for the conterminous U.S., for 2012. An approach... -
Federal
Dry deposition of oxidized nitrogen in the United States Pacific Northwest for 2002
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of dry deposition of oxidized nitrogen in the Pacific Northwest region... -
Federal
Watershed Planning Across Boundaries in New Hampshire - NERRS/NSC(NERRS Science Collaborative)
National Oceanic and Atmospheric Administration, Department of Commerce —
Population growth in New Hampshireâs coastal communities is straining municipal stormwater and wastewater infrastructure and placing water quality and public health...
489 datasets found