Skip to main content
U.S. flag

An official website of the United States government

LBA-ECO CD-06 Isotopic Composition of Carbon Fractions, Amazon Basin River Water

Published by ORNL_DAAC | National Aeronautics and Space Administration | Catalog Last Checked: August 04, 2026 at 11:12 PM | Dataset Last Updated: June 22, 2026
This data set includes measurements of standard geochemical variables, dissolved CO2, dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), fine particulate organic carbon (FPOC), and coarse particulate organic carbon (CPOC) in samples taken from 60 Amazonian river locations across the Amazon Basin from 1991 to 2003 (Mayorga et al., 2005). The 14C and 13C isotopic composition of DIC was measured on samples collected between 1991 and 2003. The 14C composition of organic carbon fractions was measured on samples collected from 1995 through 1996. There are four comma-delimited data files with this data set. Note that site descriptions include a categorization of each site by topography according to the percentage of the drainage area above 1,000 m elevation (Mayorga et al., 2005). Only means of geochemical and carbon-fraction results are provided. Both individual 13C and 14C measurements and mean results are provided.

Resources

9 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "Earthdata Forum",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description This data set includes measurements of standard geochemical variables, dissolved CO2, dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), fine particulate organic carbon (FPOC), and coarse particulate organic carbon (CPOC) in samples taken from 60 Amazonian river locations across the Amazon Basin from 1991 to 2003 (Mayorga et al., 2005). The 14C and 13C isotopic composition of DIC was measured on samples collected between 1991 and 2003. The 14C composition of organic carbon fractions was measured on samples collected from 1995 through 1996. There are four comma-delimited data files with this data set. Note that site descriptions include a categorization of each site by topography according to the percentage of the drainage area above 1,000 m elevation (Mayorga et al., 2005). Only means of geochemical and carbon-fraction results are provided. Both individual 13C and 14C measurements and mean results are provided.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Original Metadata",
    "format": "ISO",
    "mediaType": "text/xml",
    "conformsTo": "http://www.isotc211.org/2005/gmi",
    "description": "The metadata's original source.",
    "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2777330730-ORNL_CLOUD.iso19115"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PNG",
    "mediaType": "image/png",
    "downloadURL": "https://daac.ornl.gov/graphics/browse/project/square/lba_logo_square.png"
  },
  {
    "@type": "dcat:Distribution",
    "format": "ZIP",
    "mediaType": "application/zip",
    "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/protected/bundle/lba_ghcn_702.zip"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/lba/physical_climate/lba_ghcn/comp/GHCN_V1_README_LBA.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/lba/physical_climate/lba_ghcn/comp/invent.for"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/lba/physical_climate/lba_ghcn/comp/invent.sas"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://data.ornldaac.earthdata.nasa.gov/public/lba/physical_climate/lba_ghcn/comp/lba_inventory_readme.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "HTML",
    "mediaType": "text/html",
    "downloadURL": "https://doi.org/10.3334/ORNLDAAC/702"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2777330730-ORNL_CLOUD"
  }
]
identifier 10.3334/ORNLDAAC/1120
keyword 
[
  "earth-science-vegetation-biosphere-carbon",
  "earth-science-water-quality-water-chemistry-terrestrial-hydrosphere-gases",
  "earth-science-water-quality-water-chemistry-terrestrial-hydrosphere-solids",
  "earth-science-water-quality-water-chemistry-terrestrial-hydrosphere-water-characteristics"
]
license https://www.usa.gov/government-works
modified 2026-06-22
programCode 
[
  "026:000"
]
publisher 
{
  "name": "ORNL_DAAC",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"WestBoundingCoordinate": -74.572, "NorthBoundingCoordinate": -1.817, "EastBoundingCoordinate": -58.798, "SouthBoundingCoordinate": -16.472}]]"
temporal 1991-08-12/2003-01-26
theme 
[
  "Earth Science"
]
title LBA-ECO CD-06 Isotopic Composition of Carbon Fractions, Amazon Basin River Water

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov