Monthly atmospheric CO2 record from Cape Kumukahi, Hawaii, 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


Cape Kumukahi, Hawaii, U.S.A.
Island seashore
19°52' N, 154°82' W
3 m above MSL


The NOAA/CMDL flask data from Cape Kumukahi show an increase in the annual value from 334.23 parts per million (ppm) in 1977 to 373.46 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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