DOI: 10.1002/2016GL070294
论文题名: A cold and fresh ocean surface in the Nordic Seas during MIS 11: Significance for the future ocean
作者: Kandiano E.S. ; van der Meer M.T.J. ; Bauch H.A. ; Helmke J. ; Damsté J.S.S. ; Schouten S.
刊名: Geophysical Research Letters
ISSN: 0094-8474
EISSN: 1944-8205
出版年: 2016
卷: 43, 期: 20 起始页码: 10929
结束页码: 10937
语种: 英语
英文关键词: MIS 11
; reconstructions of salinity changes
; temperature reconstructions
; the Nordic Seas
Scopus关键词: Atmospheric temperature
; Glacial geology
; Isotopes
; Melting
; Repair
; Surface waters
; Hydrogen isotopic composition
; Marine isotope stages
; Meridional overturning circulations
; Nordic seas
; Salinity change
; Sea surface temperatures
; Surface water layer
; Temperature reconstruction
; Oceanography
英文摘要: Paleoceanographical studies of Marine Isotope Stage (MIS) 11 have revealed higher-than-present sea surface temperatures (SSTs) in the North Atlantic and in parts of the Arctic but lower-than-present SSTs in the Nordic Seas, the main throughflow area of warm water into the Arctic Ocean. We resolve this contradiction by complementing SST data based on planktic foraminiferal abundances with surface salinity changes using hydrogen isotopic compositions of alkenones in a core from the central Nordic Seas. The data indicate the prevalence of a relatively cold, low-salinity, surface water layer in the Nordic Seas during most of MIS 11. In spite of the low-density surface layer, which was kept buoyant by continuous melting of surrounding glaciers, warmer Atlantic water was still propagating northward at the subsurface thus maintaining meridional overturning circulation. This study can help to better constrain the impact of continuous melting of Greenland and Arctic ice on high-latitude ocean circulation and climate. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992344976&doi=10.1002%2f2016GL070294&partnerID=40&md5=c0490f2a1ad4adfd8776795244a60e94
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9437
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: NIOZ Netherlands Institute for Sea Research, Utrecht University, Den Burg, Netherlands
Recommended Citation:
Kandiano E.S.,van der Meer M.T.J.,Bauch H.A.,et al. A cold and fresh ocean surface in the Nordic Seas during MIS 11: Significance for the future ocean[J]. Geophysical Research Letters,2016-01-01,43(20).