Graphics Digital Data
Pieter P. Tans and Thomas J. Conway
The sampling site at Syowa is operated in cooperation with the National Institute of Polar Research. The first NOAA/CMDL flask air samples from Syowa were collected in 1986. The annual atmospheric CO2 mixing ratio at Syowa rose from 349.42 parts per million (ppm) in 1988 to 370.75 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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