DOI: 10.1175/JCLI-D-11-00496.1
Scopus记录号: 2-s2.0-84861350301
论文题名: Twentieth-century surface temperature trends in the western ross sea, antarctica: Evidence from a high-resolution ice core
作者: Sinclair K.E. ; Bertler N.A.N. ; Van Ommen T.D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 10 起始页码: 3629
结束页码: 3636
语种: 英语
Scopus关键词: Antarctic oscillation
; Antarctica
; Climate record
; Climate variability
; Isotopic analysis
; Surface temperatures
; Climatology
; Isotopes
; Sea ice
; Surface properties
; Atmospheric temperature
; Antarctic Oscillation
; climate change
; climate variation
; ice core
; isotopic analysis
; precipitation assessment
; sea surface temperature
; stable isotope
; surface temperature
; trend analysis
; twentieth century
; Ross Sea
; Southern Ocean
英文摘要: A 125-yr ice core record of climate from the Whitehall Glacier ice divide provides exceptionally highresolution stable isotope data from the northwest margin of the Ross Sea, Antarctica. This is the only proxy data available to extend the instrumental record of temperature in this region, where little is known about climate variability over the past two centuries. Using ECMWF Interim Re-Analysis (ERA-Interim) data, this study develops a precipitation-weighted δ 18O-temperature transfer function of 0.62%°C -1, which is comparable to other proximal ice cores, such as Taylor, Talos, and LawDomes. Reconstructed mean annual temperatures show no significant change between 1882 and 2006. However, a decrease in cold season [April-September (AMJJAS)] temperatures of -1.59° ± 0.84°C decade -1 (at 90% confidence) is observed since 1979. This cooling trend is in contrast to a surface temperature record from Ross Island (Scott Base) where significant spring warming is observed. It is also coincident with a positive trend in the southern annular mode, which is linked to stronger southerly winds and increased sea ice extent and duration in the western Ross Sea. © 2012 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52425
Appears in Collections: 气候变化事实与影响
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作者单位: Joint Antarctic Research Institute, GNS Science, Wellington, New Zealand; Joint Antarctic Research Institute, Victoria University of Wellington and GNS Science, Wellington, New Zealand; Australian Antarctic Division, Antarctic Climate and Ecosystems CRC, University of Tasmania, Hobart, TAS, Australia
Recommended Citation:
Sinclair K.E.,Bertler N.A.N.,Van Ommen T.D.. Twentieth-century surface temperature trends in the western ross sea, antarctica: Evidence from a high-resolution ice core[J]. Journal of Climate,2012-01-01,25(10)