Monthly atmospheric CO₂ record from Point Barrow, Alaska, 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

1971-2002

Point Barrow, Alaska, U.S.A.
Arctic coastal seashore
71°32' N, 156°60' W
11 m above MSL

Trends

The NOAA/CMDL flask data from Point Barrow show an increase in the annual atmospheric CO₂ mixing ratio from 330.27 parts per million (ppm) in 1972 to 374.35 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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3/2005