Monthly atmospheric CO2 record from South Pole, Antarctica, U.S.A.

Graphics Digital Data

Pieter P. Tans and Thomas J. Conway

NOAA Climate Monitoring and Diagnostics Laboratory, Boulder, Colorado 80305, U.S.A.

Period of Record


South Pole, Antarctica, U.S.A.
Ice and snow-covered plateau
89°98' S, 24°80' W
2810 m above MSL


The NOAA/CMDL sampling site at Amundsen Scott is operated in cooperation with the National Science Foundation. The annual atmospheric CO2 mixing ratio calculated from NOAA/CMDL flask data obtained at Amundsen Scott show an increase in the annual value from 330.23 parts per million (ppm) in 1976 to 370.55 ppm in 2002.

CITE AS: Tans, Pieter P. and T.J. Conway, 2005. Monthly Atmospheric CO2 Mixing Ratios from the NOAA CMDL Carbon Cycle Cooperative Global Air Sampling Network, 1968-2002. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.

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