Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088153 |
Northward shifts in the polar front preceded Bølling and Holocene warming in southwestern Scandinavia | |
O. C. Cowling; E. K. Thomas; J. I. Svendsen; J. Mangerud; K. Vasskog; H. Haflidason | |
2020-07-08 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | The last deglaciation in northern Europe provides an opportunity to study the hydrologic component of abrupt climate shifts in a region with complex interactions between ice sheets, oceanic and atmospheric circulation. We use leaf wax hydrogen isotopes (δ2H) to reconstruct summer precipitation δ2H and aridity in southwestern Norway from 15.8 to 11.5 ka. We identify transitions to a more proximal moisture source before the ends of Heinrich Stadial 1 (HS‐1) and the Younger Dryas (YD), prior to local warming and increased primary productivity in both instances. We infer these changes in moisture delivery to southwestern Norway to be a response to northward shifts in the Polar Front caused by warm water intrusion into the North Atlantic, which preceded abrupt warming in the circum‐North Atlantic. These results suggest that moisture transport pathways shift northward as warm surface ocean water reaches higher latitudes in the North Atlantic. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/283334 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | O. C. Cowling,E. K. Thomas,J. I. Svendsen,et al. Northward shifts in the polar front preceded Bølling and Holocene warming in southwestern Scandinavia[J]. Geophysical Research Letters,2020. |
APA | O. C. Cowling,E. K. Thomas,J. I. Svendsen,J. Mangerud,K. Vasskog,&H. Haflidason.(2020).Northward shifts in the polar front preceded Bølling and Holocene warming in southwestern Scandinavia.Geophysical Research Letters. |
MLA | O. C. Cowling,et al."Northward shifts in the polar front preceded Bølling and Holocene warming in southwestern Scandinavia".Geophysical Research Letters (2020). |
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