globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2015.11.002
Scopus记录号: 2-s2.0-84946882144
论文题名:
Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium
作者: Sha L.; Jiang H.; Seidenkrantz M.-S.; Muscheler R.; Zhang X.; Knudsen M.F.; Olsen J.; Knudsen K.L.; Zhang W.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 131
起始页码: 148
结束页码: 156
语种: 英语
英文关键词: Last millennium ; Sea-ice variability ; Solar activity ; West Greenland
Scopus关键词: Ice control ; Sea ice ; Solar energy ; Solar radiation ; Submarine geology ; Diatom assemblage ; Feedback mechanisms ; Last millenniums ; Medieval climate anomalies ; Sea ice formations ; Solar activity ; Solar variability ; West Greenland ; Ice ; arctic environment ; diatom ; feedback mechanism ; ice cover ; marine sediment ; Pleistocene ; sea ice ; solar activity ; Arctic ; Arctic Ocean ; Greenland ; West Greenland ; Bacillariophyta
英文摘要: Arctic sea ice represents an important component of the climate system, and the present reduction of sea ice in the Arctic is of major concern. Despite its importance, little is known about past changes in sea-ice cover and the underlying forcing mechanisms. Here, we use diatom assemblages from a marine sediment core collected from the West Greenland shelf to reconstruct changes in sea-ice cover over the last millennium. The proxy-based reconstruction demonstrates a generally strong link between changes in sea-ice cover and solar variability during the last millennium. Weaker (or stronger) solar forcing may result in the increase (or decrease) in sea-ice cover west of Greenland. In addition, model simulations show that variations in solar activity not only affect local sea-ice formation, but also control the sea-ice transport from the Arctic Ocean through a sea-ice-ocean-atmosphere feedback mechanism. The role of solar forcing, however, appears to have been more ambiguous during an interval around AD 1500, after the transition from the Medieval Climate Anomaly to the Little Ice Age, likely to be driven by a range of factors. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59719
Appears in Collections:过去全球变化的重建

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作者单位: Key Laboratory of Geographic Information Science, East China Normal University, Shanghai, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China; Centre for Past Climate Studies and Arctic Research Centre, Department of Geoscience, Aarhus University, Aarhus C, Denmark; Department of Geology, Quaternary Sciences, Lund University, Lund, Sweden; Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Department of Physics and Astronomy, Aarhus University, Aarhus C, Denmark

Recommended Citation:
Sha L.,Jiang H.,Seidenkrantz M.-S.,et al. Solar forcing as an important trigger for West Greenland sea-ice variability over the last millennium[J]. Quaternary Science Reviews,2016-01-01,131
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