globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.07.001
论文题名:
Climate patterns during former periods of mountain glaciation in Britain and Ireland: Inferences from the cirque record
作者: Barr I.D.; Ely J.C.; Spagnolo M.; Clark C.D.; Evans I.S.; Pellicer X.M.; Pellitero R.; Rea B.R.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
语种: 英语
英文关键词: Glacial cirque ; Glaciation ; NE Atlantic ; Precipitation ; Quaternary
英文摘要: We map glacial cirques, and analyse spatial variability in their altitude and aspect to derive a long-term, time-integrated, perspective on climate patterns during former periods of mountain glaciation (likely spanning multiple Quaternary glaciations) in Britain and Ireland. The data reveal that, although air temperatures were important, exposure to moisture-bearing air masses was the key factor in regulating sites of former mountain glacier formation, and indicate that during such periods, moisture supply was largely controlled by North Atlantic westerlies, with notable inland precipitation gradients (precipitation decreasing inland), similar to present day. In places, trends in cirque altitude may also reflect regional differences in the extent of cirque deepening, controlled by the dimensions and dynamics of the glaciers that came to occupy them. Specifically, comparatively deep cirques in coastal locations may reflect the former presence of dynamic (fed by moisture from the North Atlantic), but comparatively small, glaciers (largely confined to their cirques). By contrast, decreasing cirque depth further inland, may reflect the former presence of larger and/or less dynamic ice masses, occupying comparatively continental climatic conditions. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68657
Appears in Collections:过去全球变化的重建

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作者单位: School of Natural and Built Environment, Queen's University Belfast, Belfast BT7 1NN, UK; Department of Geography, The University of Sheffield, Sheffield S10 2TN, UK; School of Geosciences, University of Aberdeen, Aberdeen AB24 3UF, UK; Department of Earth and Planetary Science, University of California at Berkeley, Berkeley, CA 94709, USA; Department of Geography, University of Durham, Durham DH1 3LE, UK; Geological Survey Ireland, Beggars Bush, Haddington Road, Dublin, Ireland

Recommended Citation:
Barr I.D.,Ely J.C.,Spagnolo M.,et al. Climate patterns during former periods of mountain glaciation in Britain and Ireland: Inferences from the cirque record[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01
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