DOI: 10.5194/cp-13-729-2017
Scopus记录号: 2-s2.0-85021639699
论文题名: Regional seesaw between the North Atlantic and Nordic Seas during the last glacial abrupt climate events
作者: Wary M. ; Eynaud F. ; Swingedouw D. ; Masson-Delmotte V. ; Matthiessen J. ; Kissel C. ; Zumaque J. ; Rossignol L. ; Jouzel J.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2017
卷: 13, 期: 6 起始页码: 729
结束页码: 739
语种: 英语
英文摘要: Dansgaard-Oeschger oscillations constitute one of the most enigmatic features of the last glacial cycle. Their cold atmospheric phases have been commonly associated with cold sea-surface temperatures and expansion of sea ice in the North Atlantic and adjacent seas. Here, based on dinocyst analyses from the 48-30ĝ€ka interval of four sediment cores from the northern Northeast Atlantic and southern Norwegian Sea, we provide direct and quantitative evidence of a regional paradoxical seesaw pattern: cold Greenland and North Atlantic phases coincide with warmer sea-surface conditions and shorter seasonal sea-ice cover durations in the Norwegian Sea as compared to warm phases. Combined with additional palaeorecords and multi-model hosing simulations, our results suggest that during cold Greenland phases, reduced Atlantic meridional overturning circulation and cold North Atlantic sea-surface conditions were accompanied by the subsurface propagation of warm Atlantic waters that re-emerged in the Nordic Seas and provided moisture towards Greenland summit. © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/48908
Appears in Collections: 气候变化与战略
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Recommended Citation:
Wary M.,Eynaud F.,Swingedouw D.,et al. Regional seesaw between the North Atlantic and Nordic Seas during the last glacial abrupt climate events[J]. Climate of the Past,2017-01-01,13(6)