Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL083717 |
Climate Noise Influences Ice Sheet Mean State | |
Niu, Lu; Lehmann, Gerrit; Gowan, Evan J. | |
2019-08-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:16页码:9690-9699 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Evidence from proxy records indicates that millennial-scale abrupt climate shifts, called Dansgaard-Oeschger events, happened during past glacial cycles. Various studies have been conducted to uncover the physical mechanism behind them, based on the assumption that climate mean state determines the variability. However, our study shows that the Dansgaard-Oeschger events can regulate the mean state of the Northern Hemisphere ice sheets. Sensitivity experiments show that the simulated mean state is influenced by the amplitude of the climatic noise. The most likely cause of this phenomenon is the nonlinear response of the surface mass balance to temperature. It could also cause the retreat processes to be faster than the buildup processes within a glacial cycle. We propose that the climate variability hindered ice sheet development and prevented the Earth system from entering a full glacial state from Marine Isotope Stage 4 to Marine Isotope Stage 3 about 60,000 years ago. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490966700043 |
WOS关键词 | LAST GLACIAL MAXIMUM ; MARINE ISOTOPE STAGE-3 ; MILLENNIAL TIME SCALES ; SEA-LEVEL CHANGES ; NORTHERN-HEMISPHERE ; TEMPERATURE VARIABILITY ; STOCHASTIC RESONANCE ; ICEBERG DISCHARGES ; MODEL ; GREENLAND |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/186253 |
专题 | 气候变化 |
作者单位 | Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Bremerhaven, Germany |
推荐引用方式 GB/T 7714 | Niu, Lu,Lehmann, Gerrit,Gowan, Evan J.. Climate Noise Influences Ice Sheet Mean State[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(16):9690-9699. |
APA | Niu, Lu,Lehmann, Gerrit,&Gowan, Evan J..(2019).Climate Noise Influences Ice Sheet Mean State.GEOPHYSICAL RESEARCH LETTERS,46(16),9690-9699. |
MLA | Niu, Lu,et al."Climate Noise Influences Ice Sheet Mean State".GEOPHYSICAL RESEARCH LETTERS 46.16(2019):9690-9699. |
条目包含的文件 | 条目无相关文件。 |
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