Carbon Isotopes

Carbon-13

• ¹³C in CO
  • Measurements from Niwot Ridge, Colorado and Montana de Oro, California (Tyler)
• ¹³C in CO₂
  • NOAA/CMDL Flask Network (White and Vaughn)
  • CSIRO GASLAB Flask Network (Allison, Francey, and Krummel)
  • CSIRO in situ measurements at Cape Grim, Tasmania (Francey and Allison)
  • Scripps Institution of Oceanography (Keeling et al.)
• ¹³C in CH₄
  • NOAA/CMDL Flask Network (Miller and White)
  • Northern & Southern Hemisphere Sites (Quay and Stutsman)
  • Northern & Southern Hemisphere Sites (Stevens)

Carbon-14

• ¹⁴C in CO₂
  • Continuous Measurements
    • Schauinsland, Germany (Levin et al.)
  • Flask Measurements
    • South Pole and Point Barrow, Alaska (Meijer et al.)
  • Trays
    • Northern & Southern Hemisphere Sites (Nydall and Lovseth)
    • Vermunt, Austria (Levin et al.)
    • Wellington, New Zealand (Manning and Melhuish)
  • Balloons
    • DOE/EML Radionuclide and Trace Gas Stratospheric Measurements (Leifer and Chan)