globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2014.09.007
Scopus记录号: 2-s2.0-84924351306
论文题名:
A stratigraphic framework for abrupt climatic changes during the Last Glacial period based on three synchronized Greenland ice-core records: Refining and extending the INTIMATE event stratigraphy
作者: Rasmussen S.O.; Bigler M.; Blockley S.P.; Blunier T.; Buchardt S.L.; Clausen H.B.; Cvijanovic I.; Dahl-Jensen D.; Johnsen S.J.; Fischer H.; Gkinis V.; Guillevic M.; Hoek W.Z.; Lowe J.J.; Pedro J.B.; Popp T.; Seierstad I.K.; Steffensen J.P.; Svensson A.M.; Vallelonga P.; Vinther B.M.; Walker M.J.C.; Wheatley J.J.; Winstrup M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 106
起始页码: 14
结束页码: 28
语种: 英语
英文关键词: Definition of interstadials ; Definition of stadials ; INTIMATE event stratigraphy ; Sequence of glacial climate events ; Synchronized ice core records
Scopus关键词: Climate change ; Glacial geology ; Isotopes ; Loading ; Salinity measurement ; Stratigraphy ; Synchronization ; Definition of stadials ; Event stratigraphies ; Glacial climate ; Ice core records ; Interstadials ; Ice ; climate variation ; glacial-interglacial cycle ; ice core ; interstadial ; Last Glacial ; NorthGRIP ; paleoclimate ; perturbation ; proxy climate record ; stable isotope ; stratigraphy ; Arctic ; Atlantic Ocean ; Atlantic Ocean (North) ; Greenland
英文摘要: Due to their outstanding resolution and well-constrained chronologies, Greenland ice-core records provide a master record of past climatic changes throughout the Last Interglacial-Glacial cycle in the North Atlantic region. As part of the INTIMATE (INTegration of Ice-core, MArine and TErrestrial records) project, protocols have been proposed to ensure consistent and robust correlation between different records of past climate. A key element of these protocols has been the formal definition and ordinal numbering of the sequence of Greenland Stadials (GS) and Greenland Interstadials (GI) within the most recent glacial period. The GS and GI periods are the Greenland expressions of the characteristic Dansgaard-Oeschger events that represent cold and warm phases of the North Atlantic region, respectively. We present here a more detailed and extended GS/GI template for the whole of the Last Glacial period. It is based on a synchronization of the NGRIP, GRIP, and GISP2 ice-core records that allows the parallel analysis of all three records on a common time scale. The boundaries of the GS and GI periods are defined based on a combination of stable-oxygen isotope ratios of the ice (δ18O, reflecting mainly local temperature) and calcium ion concentrations (reflecting mainly atmospheric dust loading) measured in the ice. The data not only resolve the well-known sequence of Dansgaard-Oeschger events that were first defined and numbered in the ice-core records more than two decades ago, but also better resolve a number of short-lived climatic oscillations, some defined here for the first time. Using this revised scheme, we propose a consistent approach for discriminating and naming all the significant abrupt climatic events of the Last Glacial period that are represented in the Greenland ice records. The final product constitutes an extended and better resolved Greenland stratotype sequence, against which other proxy records can be compared and correlated. It also provides a more secure basis for investigating the dynamics and fundamental causes of these climatic perturbations. © 2014 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60106
Appears in Collections:过去全球变化的重建

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作者单位: Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, Copenhagen, Denmark; Climate and Environmental Physics, Physics Institute and Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland; Centre for Quaternary Research, University of London, Royal Holloway, Egham, Surrey, United Kingdom; Department of Global Ecology, Carnegie Institution for Science, 260 Panama St., Stanford, CA, United States; Laboratoire des Sciences du Climat et de l'Environnement, UMR CEA/CNRS/UVSQ, Orme des Merisiers, Gif sur Yvette, France; Department of Physical Geography, Faculty of Geosciences, Utrecht University, Postbus 80.115, Utrecht, Netherlands; Joint Institute for the Study of the Atmosphere and Ocean (JISAO), University of Washington, Seattle, WA, United States; School of Archaeology, History, and Anthropology, Trinity Saint David, University of Wales, Lampeter, Ceredigion, Wales, United Kingdom; Department of Geography and Earth Sciences, Aberystwyth University, Aberystwyth, Wales, United Kingdom; School of Mathematics and Statistics, University of Sheffield, Hounsfield Road, Sheffield, United Kingdom; Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States

Recommended Citation:
Rasmussen S.O.,Bigler M.,Blockley S.P.,et al. A stratigraphic framework for abrupt climatic changes during the Last Glacial period based on three synchronized Greenland ice-core records: Refining and extending the INTIMATE event stratigraphy[J]. Quaternary Science Reviews,2014-01-01,106
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