Catalog - Data.gov

Found 1062 datasets matching "delta-13C".

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: 122.03 | 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: 121.62 | Views last month: 0
Federal
Produced water major ion geochemistry, water isotopes, radium content, field parameters, gas stable isotopes, and gas compositions from Niobrara Formation petroleum wells in the Denver-Julesburg Basin, Weld County, Colorado
- Organization: Department of the Interior
- Updated: 2024-10-21T00:00:00Z
This data release includes field parameters (pH and specific conductance), major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO4, Sr), total dissolved solids, specific gravity,...
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Search relevance: 68.73 | 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: 65.31 | Views last month: 0
Federal
Stable carbon and nitrogen isotope values in muscle tissue of bigheaded carps and native filter-feeding fish from the lower Missouri River, USA, 2005-2006
- Organization: Department of the Interior
- Updated: 2020-08-17T00:00:00Z
Fish muscle tissue was analyzed for stable carbon and nitrogen isotope values (delta 13C and delta 15N) for two filter-feeding fishes native to China, silver carp (Hypophthalmichthys molitrix) and...
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Search relevance: 64.19 | Views last month: 0
Federal
NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-05-22T00:00:00.000+00:00
This dataset contains bulk tissue carbon (delta-13C), nitrogen (delta-15N), and sulfur (delta-34S) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and...
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Search relevance: 60.89 | Views last month: 0
Federal
Water and gas chemistry; North Cascades, Washington: Mariner et al., 1982
- Organization: Department of the Interior
- Updated: 2024-03-13T00:00:00Z
Water and gas chemistry data from: Mariner, R.H., Presser, T.S. and Evans, W.C., 1982. Chemical and isotopic composition of water from thermal springs and mineral springs of Washington: U.S....
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Search relevance: 58.91 | Views last month: 0
Federal
NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon and nitrogen stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2018 (NCEI Accession 0302883)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-04-02T00:00:00.000+00:00
This dataset contains bulk tissue carbon (delta-13C) and nitrogen (delta-15N) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and marsh vertebrates...
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Search relevance: 58.06 | Views last month: 0
Federal
Inorganic and organic chemical composition of groundwater collected from monitoring wells located at the National Crude Oil Spill Fate and Natural Attenuation Research Site, Bemidji, Minnesota, USA 2009-2023
- Organization: Department of the Interior
- Updated: 2024-12-19T00:00:00Z
This dataset contains information from groundwater monitoring wells at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA. The information...
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Search relevance: 57.23 | Views last month: 0
Federal
Delta-X: Foliar Stable Isotopes, MRD, LA, USA, 2021
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset contains foliar tissue C and N bulk isotopic signatures (delta 13C, delta 15N) of dominant wetland herbaceous species collected at six sites in the Atchafalaya (N = 3) and Terrebonne...
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Search relevance: 55.40 | Views last month: 0
Federal
Delta-X: Root Stable Isotopes from Herbaceous Wetlands, MRD, LA, USA, August 2021
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset contains carbon-13 (13C) and nitrogen-15 (15N) isotopic signatures of belowground root biomass samples from herbaceous wetlands in the Atchafalaya and Terrebonne basins of the...
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Search relevance: 54.48 | Views last month: 0
Federal
Water and gas chemistry; western Idaho; 1979-1997: Mariner et al., 2006
- Organization: Department of the Interior
- Updated: 2024-03-13T00:00:00Z
Water and gas chemistry data from: Mariner, R.H., Evans, W.C., and Young, H.W., 2006. Comparison of circulation times of thermal waters discharging from the Idaho batholith based on geothermometer...
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Search relevance: 53.92 | 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: 53.46 | Views last month: 0
Federal
Water chemistry; Boise, Idaho; 1988: Young et al., 1988
- Organization: Department of the Interior
- Updated: 2024-03-13T00:00:00Z
Water chemistry data from: Young, H.W., Parliman, D.J. and Mariner, R.H., 1988. Chemical and hydrologic data for selected thermal-water wells and non-thermal springs in the Boise Area,...
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Search relevance: 53.28 | Views last month: 0
Federal
LBA-ECO ND-07 Carbon and Nitrogen in Cerrado Plants and Soils, Brasilia: 1999-2000
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set provides (1) delta 15N ratios and nitrogen concentrations for foliar samples and (2) delta 13C and delta 15N ratios as well as carbon and nitrogen concentrations for soil samples...
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Search relevance: 52.62 | Views last month: 0
Federal
Stable isotope data for Ammonium loss microbiologically mediated by Fe(III) and Mn(IV) reduction along a coastal lagoon system
- Organization: U.S. Environmental Protection Agency
- Updated: 2022-11-07
These data are carbon and nitrogen content and stable isotope measurements of sediments from a lagoon in the Baja California Peninsula. The %N column gives the percent nitrogen, the delta-15-NAir...
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Search relevance: 51.31 | Views last month: 0
Federal
LBA-ECO CD-09 Soil and Vegetation Characteristics, Tapajos National Forest, Brazil
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set reports the results of soil and vegetation surveys at four distinct areas within the Tapajos National Forest (TNF), 50 to 100 km south of Santarem, Para, Brazil, in November 1999. At...
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Search relevance: 50.01 | 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: 49.17 | Views last month: 0
Federal
LBA-ECO CD-02 C and N Isotopes in Leaves and Atmospheric CO2, Amazonas, Brazil
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set reports delta 13C/12C results for leaf tissues and atmospheric carbon dioxide (CO2), 15N/14N ratios for leaf tissue, and leaf carbon and nitrogen concentrations along a topographical...
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Search relevance: 47.39 | Views last month: 1
Federal
Water and gas chemistry; Klamath Falls, Oregon; 1983: Benson et al., 1984
- Organization: Department of the Interior
- Updated: 2024-03-13T00:00:00Z
Water and gas chemistry data from: Benson, S.M., Janik, C.J., Long, D.C., Solbau, R.D. and Lienau, P.J., 1984. Data from pumping and injection tests and chemical sampling in the geothermal aquifer...
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Search relevance: 46.90 | Views last month: 0

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