DOI: 10.5194/tc-10-2721-2016
Scopus记录号: 2-s2.0-84999864874
论文题名: Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic exploration
作者: Edinburgh T ; , Day J ; J
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 6 起始页码: 2721
结束页码: 2730
语种: 英语
英文关键词: climate change
; climate modeling
; exploration
; ice cover
; sea ice
; spatiotemporal analysis
; summer
; trend analysis
; Arctic
; Ross Sea
; Southern Ocean
; Weddell Sea
; Falconidae
英文摘要: In stark contrast to the sharp decline in Arctic sea ice, there has been a steady increase in ice extent around Antarctica during the last three decades, especially in the Weddell and Ross seas. In general, climate models do not to capture this trend and a lack of information about sea ice coverage in the pre-satellite period limits our ability to quantify the sensitivity of sea ice to climate change and robustly validate climate models. However, evidence of the presence and nature of sea ice was often recorded during early Antarctic exploration, though these sources have not previously been explored or exploited until now. We have analysed observations of the summer sea ice edge from the ship logbooks of explorers such as Robert Falcon Scott, Ernest Shackleton and their contemporaries during the Heroic Age of Antarctic Exploration (1897-1917), and in this study we compare these to satellite observations from the period 1989-2014, offering insight into the ice conditions of this period, from direct observations, for the first time. This comparison shows that the summer sea ice edge was between 1.0 and 1.7° further north in the Weddell Sea during this period but that ice conditions were surprisingly comparable to the present day in other sectors. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75036
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Department of Meteorology, University of Reading, Reading, United Kingdom; Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge, United Kingdom
Recommended Citation:
Edinburgh T,, Day J,J. Estimating the extent of Antarctic summer sea ice during the Heroic Age of Antarctic exploration[J]. Cryosphere,2016-01-01,10(6)