English: Atmospheric Carbon Dioxide Record from Baring Head, Wellington, New Zealand. Period of Record 1977-2007, Methods At Baring Head: weekly air samples are collected in 5-L evacuated glass flasks exposed in triplicate. Cite As: Keeling, R.F., S.C. Piper, A.F. Bollenbacher and J.S. Walker. Carbon Dioxide Research Group, Scripps Institution of Oceanography, University of California, 'Atmospheric CO2 records from sites in the SIO air sampling network'. 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.