Catalog - Data.gov

Found 23 datasets matching "delta C-13".

Federal
Physical, nutrients, and other data from bottle casts from the Equatorial Pacific from 07 February 1979 to 14 June 1980 (NCEI Accession 0000195)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2013-03-14T00:00:00.000+00:00
Physical, nutrients, and other data from were collected from bottle casts from the Equatorial Pacific. Data were collected by the Lamont-Doherty Earth Observatory of Columbia University from 07...
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Search relevance: 65.55 | Views last month: 0
Federal
Geochemistry of authigenic carbonates from Cascadia Margin
- Organization: Department of the Interior
- Updated: 2023-08-04T00:00:00Z
Geochemical analysis of authigenic carbonates from the Cascadia Subduction Zone. Powdered carbonate samples for stable carbon (delta-C-13) and oxygen (delta-O-18) isotopes and carbonate phase were...
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Search relevance: 65.07 | 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: 60.51 | Views last month: 0
Federal
Delta-X: In Situ Water Quality Indicators across MRD, LA, USA, 2021, Version 2
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset provides in situ measurements of water temperature (degrees C), salinity (PSU), turbidity (FNU), and chlorophyll-a fluorescence (RFU) in surface of the Atchafalaya River and...
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Search relevance: 53.94 | Views last month: 0
Federal
Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, Coulometer for DIC measurement and other instruments from RRS JAMES COOK in the South Atlantic Ocean and Southern Oceans from 2010-03-19 to 2010-04-24 (NCEI Accession 0108069)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-07-15T00:00:00.000+00:00
This dataset includes discrete sample and profile data collected from RRS JAMES COOK in the South Atlantic Ocean and Southern Oceans (> 60 degrees South) from 2010-03-19 to 2010-04-24. These data...
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Search relevance: 53.15 | Views last month: 0
Federal
Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, Coulometer for DIC measurement and other instruments from JAMES CLARK ROSS in the Indian Ocean, South Atlantic Ocean and Southern Oceans from 2008-12-26 to 2009-01-30 (NCEI Accession 0110254)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-07-15T00:00:00.000+00:00
This dataset includes discrete sample and profile data collected from JAMES CLARK ROSS in the Indian Ocean, South Atlantic Ocean and Southern Oceans (> 60 degrees South) from 2008-12-26 to...
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Search relevance: 52.89 | Views last month: 0
Federal
Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from JOHN P. TULLY in the North Pacific Ocean, Papahānaumokuākea Marine National Monument and South Pacific Ocean from 1994-09-06 to 1994-11-10 (NCEI Accession 0115011)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2017-02-22T00:00:00.000+00:00
This dataset includes chemical, discrete sample, physical and profile data collected from JOHN P. TULLY in the North Pacific Ocean, Papahānaumokuākea Marine National Monument and South Pacific...
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Search relevance: 51.30 | Views last month: 0
Federal
Oil-source rock correlation studies in the unconventional Upper Cretaceous Tuscaloosa marine shale petroleum system, Mississippi and Louisiana, USA (2019)
- Organization: Department of the Interior
- Updated: 2020-08-19T00:00:00Z
The U.S. Geological Survey assessed undiscovered unconventional hydrocarbon resources reservoired in the Upper Cretaceous Tuscaloosa marine shale (TMS) of southern Mississippi and adjacent...
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Search relevance: 50.65 | Views last month: 0
Federal
Lake Lanier Carbon, Nitrogen, totals and stable isotopes
- Organization: Department of the Interior
- Updated: 2021-06-22T00:00:00Z
Total carbon and nitrogen concentrations, and delta carbon-13 and delta nitrogen-15 stable isotope ratios, were determined in sediment samples to potentially identify the sources of organic matter...
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Search relevance: 48.57 | Views last month: 0
Federal
Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from AKADEMIK ALEKSANDR NESMEYANOV in the North Pacific Ocean and Sea of Okhotsk from 1993-08-08 to 1993-09-21 (NCEI Accession 0115169)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-05-05T00:00:00.000+00:00
This dataset includes discrete sample and profile data collected from AKADEMIK ALEKSANDR NESMEYANOV in the North Pacific Ocean and Sea of Okhotsk from 1993-08-08 to 1993-09-21. These data include...
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Search relevance: 48.21 | Views last month: 0
Federal
Delta-X: In Situ Water Surface Reflectance across MRD, LA, USA, 2021, V3
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This dataset includes above water measurements of remote-sensing reflectance measured in situ at field sampling stations during the Delta-X 2021 field efforts. Measurements were collected in the...
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Search relevance: 42.39 | Views last month: 1
Federal
VG2 NEP MAG RESAMP RDR HELIOGRAPHIC COORDINATES 1.92SEC V1.0
- Organization: National Aeronautics and Space Administration
- Updated: 2025-07-17
This data set includes data from the Low Field Magnetometer (LFM) during the inbound Neptune encounter beginning in the solar wind and continuing until the first magnetopause crossing. The...

Search relevance: 41.48 | Views last month: 0
Federal
VG2 NEP MAG RESAMP RDR HELIOGRAPHIC COORDINATES 9.6SEC V1.0
- Organization: National Aeronautics and Space Administration
- Updated: 2025-07-17
This data set includes data from the Low Field Magnetometer (LFM) during the inbound Neptune encounter beginning in the solar wind and continuing until the first magnetopause crossing. The...

Search relevance: 41.48 | Views last month: 0
Federal
VG2 NEP MAG RESAMP SUMMARY HELIOGRAPHIC COORDS 48SEC V1.0
- Organization: National Aeronautics and Space Administration
- Updated: 2025-07-17
This data set includes data from the Low Field Magnetometer (LFM) during the inbound Neptune encounter beginning in the solar wind and continuing until the first magnetopause crossing. The...

Search relevance: 41.45 | Views last month: 0
Federal
Water Data for Nisqually River Delta at Site D4 (ver. 1.1, December, 2019)
- Organization: Department of the Interior
- Updated: 2020-08-27T00:00:00Z
An upward-looking acoustic Doppler velocity meter (ADVM, SonTek SW, 3.0 MHz) located in a tidal channel of the Nisqually River Delta at site D4 (N 47d 05’ 37”/W 122d 42’ 18.7”) measured water...
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Search relevance: 36.39 | 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: 22.20 | Views last month: 0
Federal
High resolution and discrete temporal and spatial water-quality measurements in support of modeling mercury and methylmercury concentrations in surface waters of the Sacramento-San Joaquin River Delta
- Organization: Department of the Interior
- Updated: 2023-02-16T00:00:00Z
The Sacramento / San Joaquin River Delta (SSJRD) is contaminated with legacy mercury (Hg) from historical mining and mineral processing activities throughout the watershed, as well as from...
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Search relevance: 20.65 | Views last month: 0
Federal
Data from: Phenotypic and nodule microbial diversity among crimson clover (Trifolium incarnatum L.) accessions
- Organization: Department of Agriculture
- Updated: 2025-11-22
Phenotypic evaluation of 37 crimson clover (Trifolium incarnatum L.) accessions from the US National Plant Germplasm System. Focus of the trial was on traits important for cover crop performance,...
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Search relevance: 20.62 | Views last month: 2
Federal
Water temperature, salinity, delta carbon-13, oxygen, and others taken by CTD and water samples from the research vessel Thomas G. Thompson in the Indian Ocean and Southern Ocean from 2018-11-07 to 2018-12-12 (NCEI Accession 0219887)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-09-16T00:00:00.000+00:00
This dataset contains stable carbon isotope composition of DIC measured on seawater samples from the SE Indian/Southern Ocean as part of the CROCCA-2S cruise. Additional O2, temperature, salinity,...
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Search relevance: 17.00 | 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: 15.53 | Views last month: 0

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