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Data Set ID:
NSIDC-0527

High-resolution Atmospheric CO2 during 7.4-9.0 ka, Version 1

This data set provides a new CO2 record from the Siple Dome ice core, Antarctica, that covers 7.4-9.0 ka (thousand years) with 8- to 16-year resolution. A small, about 1-2 ppm, increase of atmospheric CO2 during the 8.2 ka event was observed. The increase is not significant when compared to other centennial variations in the Holocene that are not linked to large temperature changes. The results do not agree with leaf stomata records that suggest a CO2 decrease of up to ~25 ppm and imply that the sensitivity of atmospheric CO2 to the primarily northern hemisphere cooling of the 8.2 ka event was limited.

Geographic Coverage

Spatial Coverage:
  • N: -81.66, S: -81.66, E: -148.82, W: -148.82

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 January 1997 to 31 December 1999
Temporal Resolution: Not specified
Parameter(s):
  • Ice Core Records > Carbon Dioxide
Platform(s) LABORATORY
Sensor(s): GAS CHROMATOGRAPHS
Data Format(s):
  • Microsoft Excel
Version: V1
Data Contributor(s): Jinho Ahn, Edward Brook

Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Brook, E. J. and J. Ahn. 2014. High-resolution Atmospheric CO2 during 7.4-9.0 ka, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. doi: http://dx.doi.org/10.7265/N5QF8QT5. [Date Accessed].

Literature Citation

As a condition of using these data, we request that you acknowledge the author(s) of this data set by referencing the following peer-reviewed publication.

  • Ahn, J., E. J. Brook, and C. Buizert. 2014. Response of Atmospheric CO2 to the Abrupt Cooling Event 8200 Years Ago, Geophys. Res. Lett.. 41. 604 – 609,. http://dx.doi.org/10.1002/2013GL058177

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