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

PALMER STATION

Trends

The NOAA/CMDL sampling site at Palmer Station on Anvers Island,Antarctica is operated in cooperation with the National Science Foundation. The NOAA/CMDL flask data from Palmer Station show an increase in the annual atmospheric CO₂ mixing ratio from 333.9 parts per million (ppm) in 1978 to 354.2 ppm in 1992, or 1.45 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.

Atmospheric CO₂ concentrations at Palmer Station show a seasonal pattern typicalof Southern Hemisphere sites, with the annual drawdown usually occurring in January or February and the annual maximum observed from August to November. Conway et al. (1994) reported that the peak-to-peak seasonal amplitude for Palmer Station was 1.7 ppm for 1981-92.

Palmer Station
Anvers Island, Antarctica
Barren island seashore
64°55' S, 64°00; W
33 m above MSL

Palmer Station Graph

Monthly atmospheric CO₂ mixing ratios at Palmer Station.

Palmer Station Table

CO₂ mixing ratios at Palmer Station (ppm)

Access to Digital Data

Qinghai Province 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)