Monthly atmospheric CO2 record from Key Biscayne, Florida, 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


Key Biscayne, Florida, U.S.A.
Coastal island seashore
25°67' N, 80°20' W
3 m above MSL


The sampling site at Key Biscayne, Florida, is operated in cooperation with the NOAA Atlantic Oceanographic and Meteorological Laboratory. The NOAA/CMDL flask data from Key Biscayne show an increase in the annual mixing ratio from 330.76 parts per million (ppm) in 1973 to 374.33 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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