DOI: 10.1016/j.quascirev.2015.10.045
Scopus记录号: 2-s2.0-84947998149
论文题名: Aeolian sediment reconstructions from the Scottish Outer Hebrides: Late Holocene storminess and the role of the North Atlantic Oscillation
作者: Orme L.C. ; Reinhardt L. ; Jones R.T. ; Charman D.J. ; Barkwith A. ; Ellis M.A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 132 起始页码: 15
结束页码: 25
语种: 英语
英文关键词: Aeolian sand
; Holocene
; North Atlantic oscillation
; Outer Hebrides
; Storm track
; Storminess
Scopus关键词: Atmospheric pressure
; Repair
; Aeolian sand
; Holocenes
; North Atlantic oscillations
; Outer Hebrides
; Storm track
; Storminess
; Storms
; climate variation
; eolian deposit
; Holocene
; Medieval
; North Atlantic Oscillation
; reconstruction
; storm
; Europe
英文摘要: Northern Europe can be strongly influenced by winter storms driven by the North Atlantic Oscillation (NAO), with a positive NAO index associated with greater storminess in northern Europe. However, palaeoclimate reconstructions have suggested that the NAO-storminess relationship observed during the instrumental period is not consistent with the relationship over the last millennium, especially during the Little Ice Age (LIA), when it has been suggested that enhanced storminess occurred during a phase of persistent negative NAO. To assess this relationship over a longer time period, a storminess reconstruction from an NAO-sensitive area (the Outer Hebrides) is compared with Late Holocene NAO reconstructions. The patterns of storminess are inferred from aeolian sand deposits within two ombrotrophic peat bogs, with multiple cores and two locations used to distinguish the storminess signal from intra-site variability and local factors. The results suggest storminess increased after 1000 cal yrs BP, with higher storminess during the Medieval Climate Anomaly (MCA) than the LIA, supporting the hypothesis that the NAO-storminess relationship was consistent with the instrumental period. However the shift from a predominantly negative to positive NAO at c.2000 cal yrs BP preceded the increased storminess by 1000 years. We suggest that the long-term trends in storminess were caused by insolation changes, while oceanic forcing may have influenced millennial variability. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59713
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geography, College for Life and Environmental Science, University of Exeter, Prince of Wales Road, Exeter, Devon, United Kingdom; Department of Geography, College for Life and Environmental Science, University of Exeter Cornwall Campus, Treliever Road, Penryn, Cornwall, United Kingdom; British Geological Survey, Environmental Science Centre, Nicker Hill, Keyworth, Nottingham, Nottinghamshire, United Kingdom
Recommended Citation:
Orme L.C.,Reinhardt L.,Jones R.T.,et al. Aeolian sediment reconstructions from the Scottish Outer Hebrides: Late Holocene storminess and the role of the North Atlantic Oscillation[J]. Quaternary Science Reviews,2016-01-01,132