DOI: 10.1002/2013GL058177
论文题名: Response of atmospheric CO2 to the abrupt cooling event 8200 years ago
作者: Ahn J. ; Brook E.J. ; Buizert C.
刊名: Geophysical Research Letters
ISSN: 0094-10438
EISSN: 1944-10169
出版年: 2014
卷: 41, 期: 2 起始页码: 604
结束页码: 609
语种: 英语
英文关键词: 8.2 ka event
; Abrupt climat change
; Carbon cycle
; Carbon dioxide
Scopus关键词: Carbon
; 8.2 ka event
; Abrupt climat change
; Atmospheric CO
; Carbon cycles
; Future climate
; Northern Hemispheres
; Siple dome
; Temperature changes
; Carbon dioxide
; carbon cycle
; carbon dioxide
; cooling
; Holocene
; interglacial
; Northern Hemisphere
; paleoclimate
; temperature gradient
; Antarctica
; Siple Dome
; West Antarctica
英文摘要: 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. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895528918&doi=10.1002%2f2013GL058177&partnerID=40&md5=f6672cd1c6ff5a1d664aaf4a55d93546
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7702
Appears in Collections: 气候减缓与适应
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea
Recommended Citation:
Ahn J.,Brook E.J.,Buizert C.. Response of atmospheric CO2 to the abrupt cooling event 8200 years ago[J]. Geophysical Research Letters,2014-01-01,41(2).