Catalog - Data.gov

Found 101 datasets matching "carbon to nitrogen ratio".

Federal
Data for food matrix reference materials for hydrogen, carbon, nitrogen, oxygen, and sulfur stable isotope-ratio measurements
- Organization: Department of the Interior
- Updated: 2020-09-04T00:00:00Z
An international project developed, quality-tested, and measured isotope−delta values of 10 new food matrix reference materials (RMs) for hydrogen, carbon, nitrogen, oxygen, and sulfur stable...
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Search relevance: 144.38 | Views last month: 0
Federal
Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN510 in the Gulf of Mexico from 2012-06-27 to 2012-07-04 (NCEI Accession 0205623)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2019-10-22T00:00:00.000+00:00
This dataset contains water and sediment chemistry, and elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise EN510 in the northern...
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Search relevance: 109.56 | Views last month: 0
Federal
Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN509 in the Gulf of Mexico from 2012-05-26 to 2012-06-19 (NCEI Accession 0205197)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2019-10-21T00:00:00.000+00:00
This dataset contains water and sediment chemistry, and elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise EN509 in the northern...
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Search relevance: 105.65 | Views last month: 0
Federal
Data from: Towards predicting biochar impacts on plant-available soil nitrogen content
- Organization: Department of Agriculture
- Updated: 2025-11-21
Biochars are charcoals used as soil amendments, and they have many beneficial effects on soil health. However, one negative effect is biochars often reduce concentrations of soil nitrogen that are...
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Search relevance: 101.12 | Views last month: 0
Federal
Fowl River, Alabama Marsh Restoration Study: Stable isotope and anthropogenic influences component (NCEI Accession 0195411)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2019-08-12T00:00:00.000+00:00
This dataset contains information collected by the Fowl River Marsh Health and Recovery Study: Stable isotope and anthropogenic influences component. Records include nitrogen (N) and carbon (C)...
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Search relevance: 99.89 | Views last month: 0
Federal
ModMon Neuse River Estuary and Pamlico Sound Water Quality Monitoring from 1994-01-24 to 2022-01-22 (NCEI Accession 0294041)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-01-27T00:00:00.000+00:00
The Neuse River Estuary Water Quality Dataset is a compilation of the biological, chemical and physical water quality data that was collected along the length of the Neuse River Estuary, North...
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Search relevance: 96.76 | Views last month: 0
Federal
CTD, elemental (C/N ratios) and isotopic (13C, 15N) data collected from R/V Endeavor cruise EN496 in the northern Gulf of Mexico from 2011-07-03 to 2011-07-26 (NCEI Accession 0183542)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2018-12-18T00:00:00.000+00:00
This dataset contains CTD, water quality and particle and zooplankton sample elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise...
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Search relevance: 82.32 | Views last month: 0
Federal
CTD, water and sediment chemistry, particle sample elemental (C, N) and isotopic (13C, 15N) data, and time series photographs obtained from a marine snow profiling camera during R/V Endeavor cruise EN515 in the Gulf of Mexico from 2012-09-06 to 2012-09-16 (NCEI Accession 0208348)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-01-17T00:00:00.000+00:00
This dataset contains CTD, water and sediment chemistry, particle sample elemental (C,N) and isotopic (13C, 15N) data, and time series photographs obtained from a marine snow profiling camera...
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Search relevance: 82.24 | Views last month: 0
Federal
Plant functional traits, Colorado River, Grand Canyon, 2012-2014—Data
- Organization: Department of the Interior
- Updated: 2020-08-27T00:00:00Z
These data were compiled or measured (depending on the trait) for 110 plant species which were documented in vegetation monitoring surveys in years 2012-2014 along the Colorado River through Grand...
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Search relevance: 70.15 | Views last month: 0
Federal
LBA-ECO CD-08 Leaf Carbon, Nitrogen, LAI, and Isotope Data, Manaus, Brazil: 2001
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-10
This data set provides measurements for carbon (C), nitrogen (N), leaf area index (LAI), and carbon isotope ratio data (13C and 14C) of leaves sampled at the Manaus ZF2 Jacaranda transect area,...
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Search relevance: 67.69 | Views last month: 0
Federal
NOAA RESTORE Science Program: Effects of nitrogen sources and plankton food-web dynamics on habitat quality for the larvae of Atlantic Bluefin Tuna in the Gulf of Mexico - biogeochemistry, dissolved inorganic nutrient, mesozooplankton, phytoplankton, and bacteria data from 2017-05-10 to 2018-05-19
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-06-10T00:00:00.000+00:00
This dataset presents results from surface-tethered drifting sediment traps, zooplankton net tows, dissolved inorganic nutrient concentration analyses made on water column samples, and flow...
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Search relevance: 66.97 | Views last month: 0
Federal
Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations from Canadian Coast Guard Ship John P. Tully in the North Pacific Ocean, coastal upwelling region west of Vancouver Island, Canada from 1998-07-15 to 1998-07-23 (NCEI Accession 0207315)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2019-12-04T00:00:00.000+00:00
This dataset includes chemical, discrete samples and profile observations data collected from Canadian Coast Guard Ship John P. Tully in the North Pacific Ocean, coastal upwelling region west of...
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Search relevance: 62.21 | Views last month: 0
Federal
Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021
- Organization: Department of the Interior
- Updated: 2023-09-05T00:00:00Z
This dataset includes field measurements and laboratory analyses of surface water, bottom water (sediment-water interface), surficial (0-2 cm) sediment, pore water (0-2 cm), and biota collected in...
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Search relevance: 60.72 | Views last month: 0
Federal
Assessment of Mercury Cycling in the St Louis River, MN using Mercury and Food Web (Carbon and Nitrogen) Stable Isotopes: U.S. Geological Survey Data Release
- Organization: U.S. Environmental Protection Agency
- Updated: 2020-08-01
Mercury concentration, mercury stable isotope ratio, and carbon and nitrogen stable isotope ratio data as applicable for sediment, water, invertebrates, and fish collected from the St. Louis River...
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Search relevance: 60.34 | Views last month: 0
Federal
SAFARI 2000 Plant and Soil C and N Isotopes, Southern Africa, 1995-2000
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-10
This data set contains measurements of the concentration and stable carbon (13C / 12C) and nitrogen (15N / 14N) isotope ratios of plant (leaves, roots and fungi) and soil samples from southern...
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Search relevance: 59.85 | Views last month: 0
Federal
ATom: Age of Air, ArN2 Ratio, and Trace Gases in Stratospheric Samples, 2009-2018
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-10
This dataset provides calculated age of air (AoA) and the argon/nitrogen (Ar/N2) ratio (per meg) from stratospheric flask samples and simultaneous high-frequency measurements of nitrous oxide...
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Search relevance: 58.76 | Views last month: 0
Federal
Patent AT-E399592-T1: [Translated] HYDROTHERMICALLY STABLE, METAL-DOPED ZEOLITE BETA FOR THE REDUCTION OF NOX
- Organization: U.S. Department of Health & Human Services
- Updated: 2025-09-06
The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is...
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Search relevance: 56.28 | Views last month: 0
Federal
Water and gas chemistry data from wells and hot springs in the Western USA, 1930 – 2006
- Organization: Department of the Interior
- Updated: 2024-03-13T00:00:00Z
Historical water and gas chemistry data from geothermal areas are important for detecting long-term patterns, informing geothermal energy exploration, development, and use, and for contextualizing...
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Search relevance: 55.16 | Views last month: 0
Federal
Chemical and benthos data collected from CTD, bottle, and other instruments in the Chukchi Sea in 2009-2010 as part of the Chukchi Sea Offshore Monitoring in Drilling Area - Chemical and Benthos (COMIDA-CAB) project (NCEI Accession 0095566)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-09-09T00:00:00.000+00:00
This dataset contains physical, chemical, and biological data collected during research cruises for the Chukchi Sea Offshore Monitoring in Drilling Area (Chemical and Benthos) (COMIDA CAB)...
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Search relevance: 54.89 | Views last month: 1
Federal
Laboratory carbon dioxide exposure experiments measuring scope for growth for juvenile Atlantic sea scallops (Placopecten magellanicus) from 2019-10-23 to 2019-12-19 (NCEI Accession 0276024)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2022-12-23T00:00:00.000+00:00
This dataset contains the biological response for Atlantic sea scallops (Placopecten magellanicus) exposed to three different levels of carbon dioxide enrichment (low, medium, high). The...
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Search relevance: 53.58 | Views last month: 0

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