Monthly atmospheric CO2 record from Halley Station, Antarctica

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


Halley Station, Antarctica
Barren seashore
75°58' S, 26°50; W
33 m above MSL


The sampling site at Halley Station, Antarctica, is operated in cooperation with the British Antarctic Survey. The NOAA/CMDL flask data from Halley Station show an increase in the annual value from 341.36 parts per million (ppm) in 1983 to 370.60 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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