Where might we find evidence of a Last Interglacial West Antarctic Ice Sheet collapse in Antarctic ice core records?

被引：16

作者：

Bradley, S. L. ^{[1
]}

Siddall, M. ^{[1
]}

Milne, G. A. ^{[2
]}

Masson-Delmotte, V. ^{[3
]}

Wolff, E. ^{[4
]}

机构：

[1] Univ Bristol, Dept Earth Sci, Bristol, Avon, England

[2] Univ Ottawa, Dept Earth Sci, Ottawa, ON, Canada

[3] UVSQ, Lab Sci Climat & Environm, CNRS, IPSL,CEA,UMR 8212, Gif Sur Yvette, France

[4] British Antarctic Survey, Cambridge CB3 0ET, England

来源：

GLOBAL AND PLANETARY CHANGE | 2012年 / 88-89卷

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

isostasy; ice cores; Antarctic Ice Sheet; eustatic sea level; Last Interglacial; POSTGLACIAL SEA-LEVEL; GLACIAL ISOSTATIC-ADJUSTMENT; EPICA DOME-C; CLIMATE VARIABILITY; EAST ANTARCTICA; GREENLAND; MARINE; STABILITY; HOLOCENE; MAXIMUM;

D O I：

10.1016/j.gloplacha.2012.03.004

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Abundant indirect evidence suggests that the West Antarctic Ice Sheet (WAIS) reduced in size during the last Interglacial (LIG) compared to the Holocene. This study explores this possibility by comparing, for the first time, ice core stable isotope records for the LIG with output from a glacio-isostatic adjustment (GIA) model. The results show that ice core records from East Antarctica are remarkably insensitive to vertical movement of the solid land motion driven by a simulated hypothetical collapse of the WAIS. However, new and so far unexplored sites are identified which are sensitive to the isostatic signal associated with WAIS collapse and so ice core proxy data from these sites would be effective in testing this hypothesis further. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：64 / 75

页数：12

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