DOI: 10.1038/ngeo1671
论文题名: Central West Antarctica among the most rapidly warming regions on Earth
作者: Bromwich D.H. ; Nicolas J.P. ; Monaghan A.J. ; Lazzara M.A. ; Keller L.M. ; Weidner G.A. ; Wilson A.B.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2013
卷: 6, 期: 2 起始页码: 139
结束页码: 145
语种: 英语
Scopus关键词: data set
; ice sheet
; melting
; meteorology
; sea level change
; seasonality
; temperature profile
; warming
; Antarctica
; Byrd Station
; West Antarctic Ice Sheet
; West Antarctica
英文摘要: There is clear evidence that the West Antarctic Ice Sheet is contributing to sea-level rise. In contrast, West Antarctic temperature changes in recent decades remain uncertain. West Antarctica has probably warmed since the 1950s, but there is disagreement regarding the magnitude, seasonality and spatial extent of this warming. This is primarily because long-term near-surface temperature observations are restricted to Byrd Station in central West Antarctica, a data set with substantial gaps. Here, we present a complete temperature record for Byrd Station, in which observations have been corrected, and gaps have been filled using global reanalysis data and spatial interpolation. The record reveals a linear increase in annual temperature between 1958 and 2010 by 2.4±1.2 °C, establishing central West Antarctica as one of the fastest-warming regions globally. We confirm previous reports of West Antarctic warming, in annual average and in austral spring and winter, but find substantially larger temperature increases. In contrast to previous studies, we report statistically significant warming during austral summer, particularly in December-January, the peak of the melting season. A continued rise in summer temperatures could lead to more frequent and extensive episodes of surface melting of the West Antarctic Ice Sheet. These results argue for a robust long-term meteorological observation network in the region. © 2013 Macmillan Publishers Limited. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106877
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Polar Meteorology Group, Byrd Polar Research Center, Ohio State University, Columbus, OH 43210, United States; National Center for Atmospheric Research, Boulder, CO 80307, United States; Antarctic Meteorological Research Center, Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI 53706, United States; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI 53706, United States
Recommended Citation:
Bromwich D.H.,Nicolas J.P.,Monaghan A.J.,et al. Central West Antarctica among the most rapidly warming regions on Earth[J]. Nature Geoscience,2013-01-01,6(2)