Atmospheric carbon dioxide variations at the South Pole

Charles D. Keeling; J. Alexander Adams; Carl A. Ekdahl; Peter R. Guenther

Original Research Papers

Atmospheric carbon dioxide variations at the South Pole

Authors

Charles D. Keeling
J. Alexander Adams
Carl A. Ekdahl
Peter R. Guenther

Abstract

Duplicate measurements of 749 discrete samples of air collected at the South Pole indicate that the seasonally adjusted concentration of atmospheric carbon dioxide in the polar southern hemisphere rose 3.7% between 1957 and 1971. The rise, mostly attributable to the burning of fossil fuels, has not been steady. In the mid-1960's, possibly as a result of wide-spread cooling of surface ocean water, it slackened for several years; recently it has accelerated. Similar changes in rate have also been observed at Mauna Loa Observatory, Hawaii, in the northern hemisphere and are evidently a global phenomenon.

Year: 1976

Volume: 28 Issue: 6

Page/Article: 552-564

DOI: 10.3402/tellusa.v28i6.11323

Submitted on Feb 16, 1973

Accepted on Jan 27, 1976

Published on Jan 1, 1976

Peer Reviewed

CC BY 4.0

References

Anonymous , 1961 . U.S. Antarctic meteorology dur-ing the IGY. Part I. Little America and Amund-sen-Scott Stations. I.G.Y . Bull. No. 53, in Trans . Am. Geophys. 42 , 487 – 492 .
Bainbridge , A. E . 1971 . Atmospheric carbon dioxide variations . Trans. Am. Geophys. U . 52 , 222 .
Bolin , B. & Keeling , C. D . 1963 . Large-scale mix-ing as deduced from the seasonal and meridional variations of carbon dioxide . J. Geophys. Res . 68 , 3899 – 3920 .
Brown , C. W. & Keeling , C. D . 1965 . The concentra-tion of atmospheric carbon dioxide in antaretica . J. Geophys. Res . 70 , 6077 – 6085 .
Dyer , A. J. & Hicks , B. B . 1968 . Global spread of volcanic dust from the Bali eruption of 1963 . Royal Metro. Soc. Quart. J . 94 , 545 – 554 .
Ekdahl , C. A. & Keeling , C. D . 1973 . Atmospheric carbon dioxide and radiocarbon in the natural carbon cycle. I. Quantitative deductions from the records of Mauna Loa Observatory and at the South Pole. In Carbon and the biosphere (ed. G. M. Woodwell and E. V. Pecan ), pp. 51-85. United States Atomic Energy Commission.
Ellis , H. T. & Pueschel , R. F . 1971 . Solar radiation: Absence of air pollution trends at Mauna Loa . Science 172 , 845 – 846 .
Fritz , S. , Hubert , L. , Humphrey , P. A. , List , R. J. , Machta , T. W. , MacDonald , T. H. , Moreland , W. B. , Keeling , C. D. , Leahy , R. G. , Ibert , E. R. & Hood , D. W . 1959 . Status of special studies in meteorology. I.G.Y . Bull. No. 20, in Trans. Am . Geophys. U . 40 , 57 – 63 .
Keeling , C. D . 1960 . The concentration and isotopic abundance of carbon dioxide in the atmosphere . Tellus 12 , 200 – 203 .
Keeling , C. D . 1973 . Industrial production of car-bon dioxide from fossil fuels and limestone . Tellus 25 , 174 – 198 .
Keeling , C. D. , Adams , J. A & Ekdahl , C. A. Jr . 1976 a. Antarctic carbon dioxide project , Report 5. 94 pp. Scripps Institution of Oceanography , La Jolla , California ,
Keeling , C. D. , Bacastow , R. B. , Bainbridge , A. E. , Ekdahl , C. A. , Guenther , P. R. , Waterman , L. S. & Chin , J. F. S . 1976b . Atmospheric carbon di-oxide variations at Mauna Loa Observatory, Hawaii . Tellus 28 , 538 – 551 .
Keeling , C. D. , Harris , T. B. & Wilkens , E. M . 1968 . The concentration of atmospheric carbon dioxide at 500 and 700 millibars . J. Geophys. Res . 73 , 4511 – 4528 .
Manabe , S. & Wetherald , R. T . 1975 . The effects of doubling the CO, concentration on the climate of a general circulation model . J. Atmospheric Sciences 32 , 3 – 15 .
Namias , J . 1970 . Macroscale variations in sea-surface temperatures in the North Pacific . J. Geophys. Res . 75 , 565 – 582 .
SMIC 1971 . Inadvertent climate modification, Re-port of the study of man's impact on climate (SMIC). MIT Press, Cambridge, Mass. , 319.
Smith , V. N . 1953 . A recording infrared analyser . Instruments 26 , 421 – 427 .