DOI: 10.1002/grl.50325
论文题名: Intermediate water ventilation in the Nordic seas during MIS 2
作者: Rørvik K.-L. ; Rasmussen T.L. ; Hald M. ; Husum K.
刊名: Geophysical Research Letters
ISSN: 0094-9116
EISSN: 1944-8847
出版年: 2013
卷: 40, 期: 9 起始页码: 1805
结束页码: 1810
语种: 英语
英文关键词: •Oceanographic changes
; MIS 2
; Nordic seas
; surface water cooling
Scopus关键词: Continental margin
; High resolution
; Intermediate waters
; Last Glacial Maximum
; Marine isotope stages
; Nordic seas
; Subsurface temperature
; Subsurface waters
; Isotopes
; Surface waters
; Ventilation
; continental margin
; cooling
; hydrodynamics
; inflow
; intermediate water
; Last Glacial Maximum
; marine isotope stage
; paleoceanography
; surface water
; ventilation
; Arctic Ocean
; Norwegian Sea
英文摘要: A high-resolution marine record from the northern Norwegian continental margin off Lofoten is used to reconstruct changes in the oceanography of the Nordic seas during marine isotope stage (MIS) 2 including the Last Glacial Maximum and early deglaciation circa 25 to 16 ka. The period was characterized by generally warm subsurface water temperatures >2°C and inflow of Atlantic surface water. Several events were characterized by decrease in ventilation of the intermediate water and low subsurface temperature and salinity. They correlate with colder atmospheric temperatures as seen in ice cores. The events terminated with gradual strengthening of the intermediate water ventilation and increase in subsurface temperature. The generation of intermediate water was unstable and experienced climate and ventilation changes on millennial and centennial timescales. The changes appear consistent with modeling experiments that predict short-lasting circulation stops during MIS 2 due to release of meltwater in the Nordic seas. Key Points MIS2 oceanographic changes the in the Nordic seasReduced ventilation of intermediate waterMeltwater flow and surface water cooling ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879070640&doi=10.1002%2fgrl.50325&partnerID=40&md5=e87ce5433bafed2659e315f047c27822
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6380
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geology, University of Tromsø, Tromsø, Norway
Recommended Citation:
Rørvik K.-L.,Rasmussen T.L.,Hald M.,et al. Intermediate water ventilation in the Nordic seas during MIS 2[J]. Geophysical Research Letters,2013-01-01,40(9).