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

ULAAN UUL

Trends

The NOAA/CMDL sampling site at Ulaan Uul, Mongolia, is operated in cooperation with the Mongolian Hydrometeorological Research Institute. The first NOAA/CMDL flask air samples from Ulaan Uul were collected in 1992. The 1992 annual atmospheric CO₂ mixing ratio of 356.3 parts per million is comparable to other Asian measurements (e.g., Qinghai Province). During the first year of measurements, the minimum mixing ratios were measured during July, and the maximum mixing ratios, during April.

Ulaan Uul, Mongolia
44°27' N, 111°06' E
914 m above MSL

Ulaan Uul Graph

Monthly atmospheric CO₂ mixing ratios at Ulaan Uul.

Ulaan Uul Table

CO₂ mixing ratios at Ulaan Uul (ppm)

Access to Digital Data

Virgin Islands 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)