| DOI: | 10.5194/cp-9-423-2013
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| Scopus记录号: | 2-s2.0-84876137208
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| 论文题名: | Proxy benchmarks for intercomparison of 8.2 ka simulations |
| 作者: | Morrill C.; Anderson D.M.; Bauer B.A.; Buckner R.; Gille E.P.; Gross W.S.; Hartman M.; Shah A.
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| 刊名: | Climate of the Past
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| ISSN: | 18149324
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| 出版年: | 2013
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| 卷: | 9, 期:1 | | 起始页码: | 423
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| 结束页码: | 432
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| 语种: | 英语
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| Scopus关键词: | benchmarking
; climate forcing
; comparative study
; cooling
; Northern Hemisphere
; paleoclimate
; precipitation (climatology)
; proxy climate record
; Southern Hemisphere
; Atlantic Ocean
; Atlantic Ocean (North)
; Europe
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| 英文摘要: | The Paleoclimate Modelling Intercomparison Project (PMIP3) now includes the 8.2 ka event as a test of model sensitivity to North Atlantic freshwater forcing. To provide benchmarks for intercomparison, we compiled and analyzed high-resolution records spanning this event. Two previously-described anomaly patterns that emerge are cooling around the North Atlantic and drier conditions in the Northern Hemisphere tropics. Newer to this compilation are more robustly-defined wetter conditions in the Southern Hemisphere tropics and regionally-limited warming in the Southern Hemisphere. Most anomalies around the globe lasted on the order of 100 to 150 yr. More quantitative reconstructions are now available and indicate cooling of ~1 °C and a ~20% decrease in precipitation in parts of Europe as well as spatial gradients in δ18O from the high to low latitudes. Unresolved questions remain about the seasonality of the climate response to freshwater forcing and the extent to which the bipolar seesaw operated in the early Holocene. © Author(s) 2013. |
| 资助项目: | NSF, National Science Foundation
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/49458
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Morrill C.,Anderson D.M.,Bauer B.A.,et al. Proxy benchmarks for intercomparison of 8.2 ka simulations[J]. Climate of the Past,2013-01-01,9(1)
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