Presentation of the 20th Century Atmospheric CO2 Record in Smithsonian Spectrographic Plates

  • Gerald M. Stokes
  • James C. Barnard

Abstract

The history of 20th century scientific measurement programs does not contain many examples of long-running studies in which an important property of the atmosphere is reliably measured by the same person at the same site with precisions of >1%. One outstanding example is C. D. Keeling’s Mauna Loa record of CO2 measurements (Keeling et al. 1982). A program that ran for an even longer period of time in the early and mid-20th century is the Smithsonian Solar Constant Program, directed by Charles G. Abbott. Over the past several years, we have been studying whether a portion of the Smithsonian data set can be used to extend the record of atmospheric CO2 concentrations back to the early 20th century.

Keywords

Optical Depth Slit Width Equivalent Width Differential Curve Slit Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • Gerald M. Stokes
  • James C. Barnard

There are no affiliations available

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