Monthly atmospheric CO2 record from Ocean Station M, Norway

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


Ocean Station M, Norway
Open ocean
66°00' N, 2°00' E
5 m above MSL


The Ocean Station "M" sampling site, in the North Atlantic, is operated in cooperation with the Norway Meteorological Institute. The NOAA/CMDL flask data from Ocean Station "M" show an increase in the annual value from 341.64 parts per million (ppm) in 1982 to 373.25 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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