24 datasets found
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Federal
Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes
Department of the Interior —
This dataset includes global rasters of terrestrial biological nitrogen fixation (BNF) rates (in kgN/(ha*y)) for each major N-fixing niche in natural biomes (trees,... -
Federal
Water-Quality Data in and near Groundwater Flow-Through Kettle-Hole Lakes, Western Cape Cod, Massachusetts, 2003 - 2018
Department of the Interior —
This U.S. Geological Survey (USGS) data release provides a comprehensive dataset of water-quality results, physical-parameter measurements, hydrologic measurements,... -
Federal
Gulf of Alaska Shelf and Slope Iron and Nitrate Data, Copper River Region, 2010
Department of the Interior —
These are data from cruises carried out in April, May and July 2010 from the Copper River (AK) mouth to beyond the shelf break, ~150 km from shore. The focus of the... -
Federal
Chemical Data From 40 Years of Monitoring a Treated-Wastewater Groundwater Plume in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1978-2018
Department of the Interior —
This U.S. Geological Survey data release provides a comprehensive dataset of water-quality data and sampling-site characteristics collected in 1978–2018 during a... -
Federal
Arctic Coastal Plain Seasonal Lake Drainage, Water Temperature, and Solute and Nutrient Concentrations, 2011 - 2014
Department of the Interior —
This data release includes remotely sensed lake and lake chemistry and water temperature data collected from 2011 to 2014) from a series of lakes on the Arctic... -
Federal
CAST Data Input Disaggregation from County and Land-River Segment Scale to National Hydrography Dataset Plus, Version 1.1
Department of the Interior —
The detrimental effects of excess nutrients and sediment entering the Chesapeake Bay estuary from its watersheds have necessitated regulatory actions. Federally-... -
Federal
Lake Erie Collaborative Science and Monitoring Initiative 2014
Department of the Interior —
In 2014, the USGS Lake Erie Biological Station participated in the Coordinated Science and Monitoring Initiative (CMSI) program, a program founded by the U.S.... -
Federal
Erosion and Rehabilitation Data, Bandelier National Monument, New Mexico, USA
Department of the Interior —
These data were compiled for a restoration experiment testing the regenerative and functional response of biocrust inoculum reintroduced to a field setting.... -
Federal
Total carbon, organic carbon, and nitrogen data from a subset of soils within the Yukon River Basin
Department of the Interior —
Total and organic carbon values from soil samples taken from the Yukon River Basin, Alaska. These samples were used to create a relationship between total carbon and... -
Federal
LTAR Phosphorus Budget Summary
Department of Agriculture —
Surface agronomic P budgets for 61 cropping systems using field-scale P flux data across 24 research sites in the United States and Canada. Data are representative of... -
Federal
Modeled Pacific salmon escapement biomass and nutrient and contaminant concentrations across western North America, 1976-2015 (version 2.0, October 2024)
Department of the Interior —
The data contain yearly modeled estimates of Pacific salmon escapement (in annual metric tons of wet mass) from 1976 to 2015 across four regions of western North... -
Federal
Lake depth profile, water quality, sediment, periphyton, tadpole (Pseudacris regilla), and landscape data from six lakes and two stream sites of the Tokopah Basin in Sequoia National Park, California, 2021-2022
Department of the Interior —
This dataset includes a collection of files related to a project investigating the ecology of six lakes in the Tokopah Basin. The primary purpose of the research... -
Federal
Estimates of burrowing shrimp densities and habitat area in Yaquina estuary, Oregon, in 2002
U.S. Environmental Protection Agency —
Estimates of the abundance and habitat area for two species of burrowing shrimps in Yaquina Bay estuary, Oregon. This dataset is associated with the following... -
Federal
Quantification of nitrogen-fixing microorganisms (targeting nifH gene) in Cladophora algae by quantitative polymerase chain reaction (qPCR)
Department of the Interior —
Data were collected to determine the abundance of nitrogen-fixing microorganisms in Cladophora algae growing on rocks, breakwall structures, or submerged dreissenid... -
Federal
Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016
Department of the Interior —
Geochemical data were obtained to investigate the fate and transport of nitrogen in a subterranean estuary near East Falmouth, Massachusetts. The goal of this... -
Federal
Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016
Department of the Interior —
Geochemical data were obtained to investigate the fate and transport of nitrogen in a subterranean estuary near East Falmouth, Massachusetts. The goal of this... -
Federal
Phosphorus, nitrogen, carbon, calcium, pH, and dissolved oxygen data from incubations of Colorado River water and sediment and associated ambient river water measurements
Department of the Interior —
Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus... -
Federal
Poultry production houses identified using aerial imagery from 1968 to 2018 in the Upper Choptank Watershed
Department of the Interior —
Dataset contains a polygon shapefile representing poultry houses in the Upper Choptank watershed in Queen Anne's County, Maryland, and Kent County, Delaware. -
Federal
Termite casing data from the long-term Small Mammal Exclosure Study (SMES) at Jornada Basin LTER, 1995-2005
Department of Agriculture —
This data package contains termite activity data in plots with a range of herbivore exclusion treatments on Jornada Experimental Range (JER) and Chihuahuan Desert... -
Federal
Physical, Chemical, and Invertebrate Data from Chipp North Pond Manipulations, North Slope, Alaska, 2013
Department of the Interior —
These data are in three tables relating to a series of ponds, visited weekly over the summer of 2013, in the Chipp River Basin on the Arctic Coastal Plain of northern...
24 datasets found