489 datasets found
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Federal
Assessing the Current and Potential Role of Shellfish for Improving Water Quality - NERRS/NSC(NERRS Science Collaborative)
National Oceanic and Atmospheric Administration, Department of Commerce —
By leveraging reserve capacity and deepening relationships, this project fostered connectedness between people and data to strengthen water quality restoration... -
Federal
Resilience and Positive Feedbacks: Water Quality Management and Eelgrass Health in the Great Bay Estuary - NERRS/NSC(NERRS Science Collaborative)
National Oceanic and Atmospheric Administration, Department of Commerce —
An interdisciplinary effort to examine eelgrass health has increased trust among partners and inspired ideas for new management strategies by municipalities and state... -
Federal
Nutrient balances, river loads, and a counterfactual analysis to determine drivers of Mississippi River nitrogen and phosphorus loads from 1975 to 2017
Department of the Interior —
This dataset consists of input and output datasets for estimating nitrogen (N) and phosphorus (P) balances for the Mississippi River Basin from 1950 to 2017. The N... -
Federal
Data on denitrification and ecological characteristics of nontidal floodplains, Chesapeake Bay watershed, USA, 2013-2016
Department of the Interior —
This data set presents attributes of floodplain ecosystem characteristics including floodplain soil denitrification, floodplain soil biogeochemistry, floodplain... -
Federal
Nutrient balances, river loads, and a counterfactual analysis to determine drivers of Mississippi River nitrogen and phosphorus loads between 1975 and 2017
Department of the Interior —
This dataset consists of input and output datasets for estimating trends in river loads using the Weighted Regressions on Time Season and Discharge (WRTDS) model. The... -
Federal
Longitudinal profiles of surface water chemistry in the Sacramento River Deep Water Ship Channel
Department of the Interior —
Longitudinal profiles of surface water chemistry were made using a Sea-Bird SUNA optical nitrate sensor and a YSI EXO2 water quality sonde. Water from 0.1 m depth was... -
Federal
Delta-15 Nitrogen from All Shores of Maui and Benthic, Algae, and Urchin Data from Kahekili, West Maui, 2007-2009 (NODC Accession 0068665)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Hawaii Division of Aquatic Resources (DAR) established an Herbivore Fisheries Management Area (HFMA) in front of Kahekili Beach Park in West Maui that was... -
Federal
Plant composition, shrub biomass, and soil biogeochemistry from an experimental drought treatment on the Colorado Plateau
Department of the Interior —
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.... -
Federal
Data from water column and sediment incubations from streams of Duck Creek and Fox River watersheds in Wisconsin, as well as the Fox rivermouth, the Saginaw rivermouth (Lake Huron, MI) and the Maumee rivermouth (Lake Erie, OH)
Department of the Interior —
Nutrient reduction on the landscape scale often focuses on actions that reduce the movement of nitrogen (N) and phosphorus (P) from agricultural lands into streams... -
Federal
Data from Greenhouse Trials for 11 Enhanced Efficiency Fertilizers (Clark et al.)
U.S. Environmental Protection Agency —
This is the greenhouse data for Clark et al. "Environmental sustainability of future fertilizers: Tradeoffs between ammonia volatilization and nitrate leaching for 11... -
Federal
Great Lakes Network 2006-2024 Large Rivers Water Quality Monitoring Data as of 2025-03-15
Department of the Interior —
This data package was created 2025-03-15 17:41:53 by NPSTORET and includes selected project, location, and result data. Data contained in Great Lakes Network NPSTORET... -
Federal
Estimated Animal Agriculture Nitrogen and Phosphorus from Manure
U.S. Environmental Protection Agency —
Animal agriculture manure is a primary source of nitrogen and phosphorus to surface and groundwater. Manure runoff from cropland and pastures or discharging animal... -
Federal
Regression tree datasets used to identify trophic states in Tennessee reservoirs
Department of the Interior —
This dataset was developed in partnership with the Tennessee Department of Environmental Conservation to determine the susceptibility of selected Tennessee reservoirs... -
Federal
Nitrogen concentrations and loads and seasonal nitrogen loads in selected Long Island Sound tributaries, water years 1995-2021 (ver. 1.1, February 2024)
Department of the Interior —
This U.S. Geological Survey (USGS) data release presents tabular data on nitrogen concentrations and loads for multiple nitrogen species, and river discharge data... -
Federal
Tabular county-level nitrogen and phosphorus estimates from fertilizer and manure for approximately 5-year periods from 1950 to 2017
Department of the Interior —
This product provides tabular estimates of kilograms of nitrogen and phosphorus from a) fertilizer, and b) manure, for counties in the conterminous United States for... -
Federal
Water-quality data for nitrate plus nitrite, total nitrogen, and total phosphorus for sites in Red River of the North basin, 1970-2017
Department of the Interior —
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)... -
Federal
Chesapeake Bay River Input Monitoring Network 1985-2023: Monthly loads
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
Macro-algae Biomass and Cover from Nearshore Regions of the Natatorium War Memorial, Waikiki, Oahu, Hawaii 1966-2005 (NODC Accession 0040082)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Department of Zoology, University of Hawaii at Manoa, incorporated surveys of macro-algae as part of the Zoology 439L "Laboratory in Ecology" during annual field... -
Federal
Nutrient generation at dairies and feedlots in the United States Pacific Northwest for 2002 summarized for NHDPlus v2 catchments
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of nitrogen and phosphorus generated by cattle at dairies and feedlots... -
Federal
Data for Use of historical isoscapes to develop an estuarine nutrient baseline
U.S. Environmental Protection Agency —
Coastal eutrophication is a prevalent threat to the healthy functioning of ecosystems globally. While degraded water quality can be detected by monitoring oxygen,...
489 datasets found