DOI: 10.1175/JCLI-D-14-00282.1
Scopus记录号: 2-s2.0-84919681364
论文题名: Refining estimates of polar ice volumes during the MIS11 interglacial using sea level records from South Africa
作者: Chen F. ; Friedman S. ; Gertler C.G. ; Looney J. ; O'Connell N. ; Sierks K. ; Mitrovica J.X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 23 起始页码: 8740
结束页码: 8746
语种: 英语
Scopus关键词: Glacial geology
; Glaciers
; Ice
; Isotopes
; Uncertainty analysis
; Eustatic sea level
; Eustatic sea-level rise
; Geographic variability
; Glacial isostatic adjustment
; Marine isotope stages
; Numerical predictions
; Polar ice sheets
; Sealevel change
; Sea level
; eustacy
; ice sheet
; interglacial
; marine isotope stage
; melting
; Postglacial
; sea level change
; Antarctica
; Arctic
; East Antarctica
; Greenland
; South Africa
; West Antarctica
英文摘要: Peak eustatic sea level (ESL), or minimum ice volume, during the protracted marine isotope stage 11 (MIS11) interglacial at ~420 ka remains a matter of contention.A recent study of high-stand markers of MIS11 age from the tectonically stable southern coast of SouthAfrica estimated a peakESLof 13m.The present study refines this estimate by taking into account both the uncertainty in the correction for glacial isostatic adjustment (GIA) and the geographic variability of sea level change following polar ice sheet collapse. In regard to the latter, the authors demonstrate, using gravitationally self-consistent numerical predictions of postglacial sea level change, that rapid melting from any of the three major polar ice sheets (West Antarctic,Greenland, or East Antarctic) will lead to a local sea level rise in southern South Africa that is 15%-20% higher than the eustatic sea level rise associated with the ice sheet collapse. Taking this amplification and a range of possible GIA corrections into account and assuming that the tectonic correction applied in the earlier study is correct, the authors revise downward the estimate of peak ESL during MIS11 to 8-11.5m. © 2014 American Meteorological Society. 资助项目: NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51302
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States
Recommended Citation:
Chen F.,Friedman S.,Gertler C.G.,et al. Refining estimates of polar ice volumes during the MIS11 interglacial using sea level records from South Africa[J]. Journal of Climate,2014-01-01,27(23)