Monthly atmospheric CO2 record from Mt. Waliguan, Peoples Republic of China

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


Mt. Waliguan, Peoples Republic of China
36°29' N, 100°90' E
3810 m above MSL


The NOAA/CMDL sampling site at Mt. Waliguan, Peoples Republic of China is operated in cooperation with the Chinese Academy of Meteorological Sciences. The NOAA/CMDL flask air samples from Mt. Waliguan show an increase in the annual value from 355.23 parts per million (ppm) in 1991 to 372.65 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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