DOI: 10.1016/j.quascirev.2014.06.008
Scopus记录号: 2-s2.0-84903640056
论文题名: Salt-marsh reconstructions of relative sea-level change in the North Atlantic during the last 2000 years
作者: Barlow N.L.M. ; Long A.J. ; Saher M.H. ; Gehrels W.R. ; Garnett M.H. ; Scaife R.G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 99 起始页码: 1
结束页码: 16
语种: 英语
英文关键词: Climate
; Diatoms
; Foraminifera
; North Atlantic
; Salt marsh
; Sea level
; Transfer function
Scopus关键词: Sea level
; Statistical tests
; Transfer functions
; Climate
; Diatoms
; Foraminifera
; North Atlantic
; Salt marshes
; Wetlands
; air-sea interaction
; data set
; diatom
; foraminifera
; fossil record
; Holocene
; reconstruction
; saltmarsh
; sea level change
; timescale
; Atlantic Ocean
; Atlantic Ocean (North)
; Scotland
; United Kingdom
英文摘要: Sea-level changes record changes in the mass balance of ice sheets and mountain glaciers, as well as dynamic ocean-atmosphere processes. Unravelling the contribution of each of these mechanisms on Late Holocene timescales ideally requires observations from a number of sites on several coasts within one or more oceans. We present the first 2000 year-long continuous salt marsh-based reconstructions of relative sea-level (RSL) change from the eastern North Atlantic and uniquely from a slowly uplifting coastline. We develop three RSL histories from two sites in north west Scotland to test for regional changes in sea-level tendency (a positive tendency indicating an increase in the proximity of marine conditions and a negative tendency the reverse), whilst at the same time highlighting methodological issues, including the problems of dataset noise when applying transfer functions to fossil salt-marsh sequences. The records show that RSL has been stable (±0.4m) during the last two millennia, and that the regional sea-level tendency has been negative throughout most of the record lengths. A recent switch in the biostratigraphy of all three records, indicating a regional positive tendency, means we cannot reject the hypothesis of a 20th century sea-level acceleration occurring in north west Scotland that must have exceeded the rate of background RSL fall (-0.4mmyr-1), but this signal appears muted and later than recorded from the western North Atlantic. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60190
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geography, Durham University, Lower Mountjoy, South Road, Durham, DH1 3LE, United Kingdom; Environment Department, University of York, Heslington, York, YO10 5DD, United Kingdom; Scottish Universities Environmental Research Centre, Rankine Avenue, East Kilbride, Glasgow, G75 0QF, United Kingdom; Geography and the Environment, University of Southampton, University Road, Southampton, SO17 1BJ, United Kingdom; School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey, LL59 5AB, United Kingdom
Recommended Citation:
Barlow N.L.M.,Long A.J.,Saher M.H.,et al. Salt-marsh reconstructions of relative sea-level change in the North Atlantic during the last 2000 years[J]. Quaternary Science Reviews,2014-01-01,99