Article
 

Response of atmospheric CO₂ to the abrupt cooling event 8200 years ago

Público Deposited

Contenido Descargable

Descargar PDF
https://ir.library.oregonstate.edu/concern/articles/hd76s471n

Descriptions

Attribute NameValues
Creator
Abstract
  • Atmospheric CO₂ records for the centennial scale cooling event 8200 years ago (8.2 ka event) may help us understand climate-carbon cycle feedbacks under interglacial conditions, which are important for understanding future climate, but existing records do not provide enough detail. Here we present a new CO₂ record from the Siple Dome ice core, Antarctica, that covers 7.4–9.0 ka with 8 to 16 year resolution. We observe a small, about 1–2 ppm, increase of atmospheric CO₂ during the 8.2 ka event. The increase is not significant when compared to other centennial variations in the Holocene that are not linked to large temperature changes. Our 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.
  • Keywords: Carbon cycle, Carbon dioxide, 8.2 ka event, Abrupt climate change
Resource Type
DOI
Fecha Disponible
Fecha de Emisión
Citation
  • Ahn, J., E. J. Brook, and C. Buizert (2014), Response of atmospheric CO₂ to the abrupt cooling event 8200 years ago, Geophysical Research Letters, 41, 604–609. doi:10.1002/2013GL058177
Journal Title
Journal Volume
  • 41
Journal Issue/Number
  • 2
Declaración de derechos
Funding Statement (additional comments about funding)
  • Financial supportwas provided by National ScienceFoundation grant OPP 0944764-ANT toE.B. and the NOAA Climate and GlobalChange Fellowship Program to C.B., administeredby the UniversityCorporation for Atmospheric Research.This work was also supported by BasicScience Research Program through theNational Research Foundation of Korea,funded by the Ministry of Education,Science and Technology (2011-0025242), and Korea MeteorologicalAdministration Research andDevelopment Program under grantCATER 2012-7030 to J.A.
Publisher
Peer Reviewed
Language
Replaces

Relaciones

Parents:

This work has no parents.

Elementos

Miniatura Título Fecha de subida Visibilidad Acciones
file details BrookEdwardCEOASResponseAtmosphericAbrupt_SupportingInformationDescription.pdf 10/27/2017 Público
file details BrookEdwardCEOASResponseAtmosphericAbrupt_SupportingInformation.pdf 10/27/2017 Público
file details BrookEdwardCEOASResponseAtmosphericAbrupt.pdf 10/27/2017 Público