Atmospheric carbon dioxide records from sites in the NOAA/CMDL air sampling network

SAMOA

Trends

The NOAA/CMDL flask data from Samoa show an increase in the annual atmospheric CO₂ mixing ratio from 330.9 parts per million (ppm) in 1974 to 354.9 ppm in 1992, or 1.33 ppm per year. Conway et al. (1994) reported a global growth rate of 1.43 ppm per year during 1981-92 for all NOAA/CMDL flask sampling sites. Conway et al. (1994) reported that the peak-to-trough seasonal amplitude for Samoa was 1.3 ppm for 1981-92.

Samoa (Cape Matatula)
U.S. Territory, Pacific Ocean
Island rocky promontory
14°15' S, 170°34' W
42 m above MSL

Samoa Graph

Monthly atmospheric CO₂ mixing ratios at Samoa.

Samoa Table

CO₂ mixing ratios at Samoa (ppm)

Access to Digital Data

Seychelles Trends

References

Methods

CITE AS: Conway, T.J., P.P. Tans, and L.S. Waterman. 1994. Atmospheric CO₂ records from sites in the NOAA/CMDL air sampling network. In T.A. Boden, D.P. Kaiser, R.J. Sepanski, and F.W. Stoss (eds.), Trends '93: A Compendium of Data on Global Change. ORNL/CDIAC-65. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A.

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Date revised 4/10/95 (gg)