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

CAPE MEARES

Trends

The sampling site at Cape Meares is operated in cooperation with the Oregon Graduate Institute of Science and Technology. The NOAA/CMDL flask data from Cape Meares show an increase in the annual value from 343.0 parts per million (ppm) in 1983 to 356.5 ppm in 1992. This represents an increase of ~1.5 ppm per year in comparison with a global growth rate of 1.43 ppm per year reported by Conway et al. (1994) for all NOAA/CMDL flask sampling sites during 1981-92. Atmospheric CO₂ mixing ratios at Cape Meares show a seasonal pattern: the annual minimum is recorded during August, and the annual maximum, during January-April.

Cape Meares, Oregon, U.S.A.
Promontory seashore
45°29' N, 120°00' W
30 m above MSL

Cape Meares Graph

Monthly atmospheric CO₂ mixing ratios at Cape Meares.

Cape Meares Table

CO₂ mixing ratios at Cape Meares (ppm)

Access to Digital Data

Christmas Island 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.

Previous Section

Next Section

Contents

CDIAC Home

Date revised 4/10/95 (gg)