DOI: 10.1016/j.quascirev.2014.08.018
Scopus记录号: 2-s2.0-84908322122
论文题名: Temporal and spatial structure of multi-millennial temperature changes at high latitudes during the Last interglacial
作者: Capron E. ; Govin A. ; Stone E.J. ; Masson-Delmotte V. ; Mulitza S. ; Otto-Bliesner B. ; Rasmussen T.L. ; Sime L.C. ; Waelbroeck C. ; Wolff E.W.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 103 起始页码: 116
结束页码: 133
语种: 英语
英文关键词: Climate model simulations
; Data synthesis
; Ice cores
; Last Interglacial period
; Marine sediment cores
Scopus关键词: Climate model simulations
; Data synthesis
; Ice core
; Last interglacial
; Marine sediments
; climate modeling
; ice core
; Last Interglacial
; paleoceanography
; paleoclimate
; paleotemperature
; sediment core
; spatiotemporal analysis
; temperature anomaly
; warming
; Antarctica
; Southern Ocean
英文摘要: The Last Interglacial (LIG, 129-116 thousand of years BP, ka) represents a test bed for climate model feedbacks in warmer-than-present high latitude regions. However, mainly because aligning different palaeoclimatic archives and from different parts of the world is not trivial, a spatio-temporal picture of LIG temperature changes is difficult to obtain.Here, we have selected 47 polar ice core and sub-polar marine sediment records and developed a strategy to align them onto the recent AICC2012 ice core chronology. We provide the first compilation of high-latitude temperature changes across the LIG associated with a coherent temporal framework built between ice core and marine sediment records. Our new data synthesis highlights non-synchronous maximum temperature changes between the two hemispheres with the Southern Ocean and Antarctica records showing an early warming compared to North Atlantic records. We also observe warmer than present-day conditions that occur for a longer time period in southern high latitudes than in northern high latitudes. Finally, the amplitude of temperature changes at high northern latitudes is larger compared to high southern latitude temperature changes recorded at the onset and the demise of the LIG.We have also compiled four data-based time slices with temperature anomalies (compared to present-day conditions) at 115ka, 120ka, 125ka and 130ka and quantitatively estimated temperature uncertainties that include relative dating errors. This provides an improved benchmark for performing more robust model-data comparison. The surface temperature simulated by two General Circulation Models (CCSM3 and HadCM3) for 130ka and 125ka is compared to the corresponding time slice data synthesis. This comparison shows that the models predict warmer than present conditions earlier than documented in the North Atlantic, while neither model is able to produce the reconstructed early Southern Ocean and Antarctic warming. Our results highlight the importance of producing a sequence of time slices rather than one single time slice averaging the LIG climate conditions. © 2014 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60142
Appears in Collections: 过去全球变化的重建
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作者单位: British Antarctic Survey, High Cross, Madingley Road, Cambridge, United Kingdom; MARUM/Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, Bremen, Germany; BRIDGE, School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Institut Pierre-Simon Laplace/Laboratoire des Sciences du Climat et de l'Environnement, UMR 8212, CEA-CNRS-UVSQ, Gif-sur-Yvette, France; Climate and Global Dynamics Division, National Center for Atmospheric Research (NCAR), Boulder, CO, United States; CAGE-Centre for Arctic Gas Hydrate, Environment and Climate, UiT, the Arctic University of Norway, Tromsø, Norway; Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom
Recommended Citation:
Capron E.,Govin A.,Stone E.J.,et al. Temporal and spatial structure of multi-millennial temperature changes at high latitudes during the Last interglacial[J]. Quaternary Science Reviews,2014-01-01,103