气候变化领域集成服务门户(CCPortal): A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination

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DOI	10.5194/cp-16-2359-2020
	A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination
	Mojtabavi S.; Wilhelms F.; Cook E.; Davies S.M.; Sinnl G.; Skov Jensen M.; Dahl-Jensen D.; Svensson A.; Vinther B.M.; Kipfstuhl S.; Jones G.; Karlsson N.B.; Henrique Faria S.; Gkinis V.; Astrid Kjær H.; Erhardt T.; Berben S.M.P.; Nisancioglu K.H.; Koldtoft I.; Olander Rasmussen S.
发表日期	2020
ISSN	1814-9324
卷号	16 期号:6
英文摘要	This paper provides the first chronology for the deep ice core from the East Greenland Ice-core Project (EGRIP) over the Holocene and the late last glacial period. We rely mainly on volcanic events and common peak patterns recorded by dielectric profiling (DEP) and electrical conductivity measurement (ECM) for the synchronization between the EGRIP, North Greenland Eemian Ice Drilling (NEEM) and North Greenland Ice Core Project (NGRIP) ice cores in Greenland. We transfer the annual-layer-counted Greenland Ice Core Chronology 2005 (GICC05) from the NGRIP core to the EGRIP ice core by means of 381 match points, typically spaced less than 50 years apart. The NEEM ice core has previously been dated in a similar way and is only included to support the match-point identification. We name our EGRIP timescale GICC05-EGRIP-1. Over the uppermost 1383.84 m, we establish a depth-Age relationship dating back to 14 967 years b2k (years before the year 2000 CE). Tephra horizons provide an independent validation of our match points. In addition, we compare the ratio of the annual layer thickness between ice cores in between the match points to assess our results in view of the different iceflow patterns and accumulation regimes of the different periods and geographical regions. For the next years, this initial timescale will be the basis for climatic reconstructions from EGRIP high-resolution proxy data sets, e.g. stable water isotopes, chemical impurity or dust records. © 2020 BioMed Central Ltd.. All rights reserved.
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/183635
作者单位	Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Bremerhaven, Germany; Department of Crystallography, Geoscience Centre, University of Göttingen, Göttingen, Germany; Centre for Ice and Climate, Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark; Department of Geography, College of Science, Swansea University, Swansea, Wales, United Kingdom; Center for Earth Observation Science, University of Manitoba, Winnipeg, Canada; Geological Survey of Denmark and Greenland, Copenhagen, Denmark; Basque Centre for Climate Change (BC3), Leioa, Spain; Nagaoka University of Technology, Nagaoka, Japan; Ikerbasque, Basque Foundation for Science, Bilbao, Spain; Climate and Environmental Physics, Physics Institute and Oeschger Center for Climate Change Research, University of Bern, Sidlerstrasse 5, Bern, Switzerland; Department of Earth Science, University of Bergen, Bjerknes Centre for Climate Research, Allégaten 41, Bergen, Norway; Centre for Earth ...
推荐引用方式 GB/T 7714	Mojtabavi S.,Wilhelms F.,Cook E.,et al. A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination[J],2020,16(6).
APA	Mojtabavi S..,Wilhelms F..,Cook E..,Davies S.M..,Sinnl G..,...&Olander Rasmussen S..(2020).A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination.Climate of the Past,16(6).
MLA	Mojtabavi S.,et al."A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination".Climate of the Past 16.6(2020).