DOI: 10.1002/2016GL068227
论文题名: Multidecadal changes in Iceland Scotland Overflow Water vigor over the last 600 years and its relationship to climate
作者: Mjell T.L. ; Ninnemann U.S. ; Kleiven H.F. ; Hall I.R.
刊名: Geophysical Research Letters
ISSN: 0094-9270
EISSN: 1944-9001
出版年: 2016
卷: 43, 期: 5 起始页码: 2111
结束页码: 2117
语种: 英语
英文关键词: abrupt/rapid climate change
; climate dynamics
; decadal ocean variability
; overflows
; sediment transport
Scopus关键词: Climate change
; Sediment transport
; Submarine geology
; Accumulation rates
; Atlantic meridional overturning circulations
; Centennial variability
; Climate dynamics
; Decadal ocean variability
; Deep-ocean circulation
; Multidecadal variability
; Overflows
; Oceanography
英文摘要: Changes in the Atlantic Meridional Overturning Circulation (AMOC) have commonly been invoked to explain the low-frequency climate changes evident over millennial-multidecadal timescales during the Holocene period. While there is growing evidence that deep ocean circulation varied on millennial timescales, little is known about ocean variability on shorter timescales. Here we use a marine sediment core (GS06-144-09MC-D) recovered from a high accumulation rate site on the Gardar Drift in the Iceland Basin (60°19′N, 23°58′W, 2081 m) to reconstruct decadal-centennial variability in the vigor of Iceland-Scotland Overflow Water (ISOW) with the paleocurrent proxy "sortable silt" mean grain size SS¯. Our SS¯ record reveals that changes in ISOW vigor have occurred on multidecadal-centennial timescales over the past ~600 years; similar timescales as documented in Atlantic Multidecadal Variability observations and reconstructions. Our findings support a link between changes in basin-wide climate and deep ocean circulation. © 2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960156013&doi=10.1002%2f2016GL068227&partnerID=40&md5=1cc4e60081cd6934cf9552d0a8529d61
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10233
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Earth Science, University of Bergen, Bergen, Norway
Recommended Citation:
Mjell T.L.,Ninnemann U.S.,Kleiven H.F.,et al. Multidecadal changes in Iceland Scotland Overflow Water vigor over the last 600 years and its relationship to climate[J]. Geophysical Research Letters,2016-01-01,43(5).