Graphics Digital Data
Pieter P. Tans and Thomas J. Conway
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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