气候变化领域集成服务门户(CCPortal): Millennial-scale atmospheric CO2variations during the Marine Isotope Stage 6 period (190-135 ka)

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DOI	10.5194/cp-16-2203-2020
	Millennial-scale atmospheric CO2variations during the Marine Isotope Stage 6 period (190-135 ka)
	Shin J.; Nehrbass-Ahles C.; Grilli R.; Beeman J.C.; Parrenin F.; Teste G.; Landais A.; Schmidely L.; Silva L.; Schmitt J.; Bereiter B.; Stocker T.F.; Fischer H.; Chappellaz J.
发表日期	2020
ISSN	18149324
起始页码	2203
结束页码	2219
卷号	16 期号:6
英文摘要	Using new and previously published CO2 data from the EPICA Dome C ice core (EDC), we reconstruct a new high-resolution record of atmospheric CO2 during Marine Isotope Stage (MIS) 6 (190 to 135 ka) the penultimate glacial period. Similar to the last glacial cycle, where high-resolution data already exists, our record shows that during longer North Atlantic (NA) stadials, millennial CO2 variations during MIS 6 are clearly coincident with the bipolar seesaw signal in the Antarctic temperature record. However, during one short stadial in the NA, atmospheric CO2 variation is small (g 5 ppm) and the relationship between temperature variations in EDC and atmospheric CO2 is unclear. The magnitude of CO2 increase during Carbon Dioxide Maxima (CDM) is closely related to the NA stadial duration in both MIS 6 and MIS 3 (60-27 ka). This observation implies that during the last two glacials the overall bipolar seesaw coupling of climate and atmospheric CO2 operated similarly. In addition, similar to the last glacial period, CDM during the earliest MIS 6 show different lags with respect to the corresponding abrupt CH4 rises, the latter reflecting rapid warming in the Northern Hemisphere (NH). During MIS 6i at around 181.5±0.3 ka, CDM 6i lags the abrupt warming in the NH by only 240±320 years. However, during CDM 6iv (171.1±0.2 ka) and CDM 6iii (175.4±0.4 ka) the lag is much longer: 1290±540 years on average. We speculate that the size of this lag may be related to a larger expansion of carbon-rich, southern-sourced waters into the Northern Hemisphere in MIS 6, providing a larger carbon reservoir that requires more time to be depleted. © 2020 Author(s).
语种	英语
scopus关键词	carbon dioxide; carbon emission; climate variation; Last Glacial Maximum; marine isotope stage; Northern Hemisphere; paleotemperature
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153178
作者单位	Cnrs, Univ. Grenoble-Alpes, Institut des Géosciences de l'Environnement (IGE), Grenoble, France; Climate and Environmental Physics, Physics Institute, Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France; Laboratory for Air Pollution/Environmental Technology, Empa, Dübendorf, Switzerland; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada; Bruker BioSpin Ag, Fällanden, Switzerland
推荐引用方式 GB/T 7714	Shin J.,Nehrbass-Ahles C.,Grilli R.,et al. Millennial-scale atmospheric CO2variations during the Marine Isotope Stage 6 period (190-135 ka)[J],2020,16(6).
APA	Shin J..,Nehrbass-Ahles C..,Grilli R..,Beeman J.C..,Parrenin F..,...&Chappellaz J..(2020).Millennial-scale atmospheric CO2variations during the Marine Isotope Stage 6 period (190-135 ka).Climate of the Past,16(6).
MLA	Shin J.,et al."Millennial-scale atmospheric CO2variations during the Marine Isotope Stage 6 period (190-135 ka)".Climate of the Past 16.6(2020).