Monthly atmospheric CO2 record from Ny-Alesund, Svalbard (Norway and Sweden)

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


Ny-Alesund, Svalbard (Norway and Sweden)
78°90' N, 11°88' E
475 m above MSL


The sampling site at Ny-Alesund, Svalbard, is operated in cooperation with the Institute of Applied Environmental Research, Stockholm University. The NOAA/CMDL flask data from Ny-Alesund show an increase in the annual mixing ratio from 361.58 parts per million (ppm) in 1995 to 374.35 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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