Monthly atmospheric CO₂ record from Mould Bay, Nunavut, Canada

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

1980-1997

Mould Bay, Nunavut, Canada
76°25' N, 119°35' W
58 m above MSL

Trends

The sampling site at Mould Bay is operated in cooperation with the Atmospheric Environment Service of Environment Canada. The NOAA/CMDL flask data from Mould Bay show an increase in the annual value from 341.85 parts per million (ppm) in 1981 to 363.66 ppm in 1996. A notable feature of the Mould Bay record is the slight decline in the annual atmospheric CO₂ mixing ratio from 1991 to 1992.

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