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High-resolution Atmospheric CO2 during 7.4-9.0 ka Data DOI: https://doi.org/10.7265/N5QF8QT5 Cite as Brook, E. J., & Ahn, J. (2014) "High-resolution Atmospheric CO2 during 7.4-9.0 ka" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5QF8QT5. AMD - DIF Record(s) NSIDC-0527_1 Abstract 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. Creator(s): Brook, Edward J.; Ahn, Jinho Date Created: 2014-06-25 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -148.82, East: -148.82, South: -81.66, North: -81.66 Temporal Extent(s) Start: 1997-01-01 - End: 1999-12-31 Award(s) NSF 0944764 Version: 1 Related Project(s) Atmospheric CO2 and Abrupt Climate Change References 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. (doi:10.1002/2013GL058177) Keywords Antarctica Chemistry:fluid Geochemistry Geochronology Glaciers/ice Sheet Glaciology Ice Core Records Paleoclimate Siple Dome Siple Dome Ice Core South Pole WAISCORES