Monthly atmospheric CO2 record from Hegyhatsal, Hungary

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


Hegyhatsal, Hungary
46°95' N, 16°65' E
344 m above MSL


The sampling site at Hegyhatsal, Hungary, is operated in cooperation with the Hungarian Meteorological Service. The NOAA/CMDL flask data from Hegyhatsal show an increase in the annual mixing ratio from 362.12 parts per million (ppm) in 1994 to 376.73 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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