Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073936 |
Connecting Antarctic sea ice to deep-ocean circulation in modern and glacial climate simulations | |
Marzocchi, Alice; Jansen, Malte F. | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Antarctic sea-ice formation plays a key role in shaping the abyssal overturning circulation and stratification in all ocean basins, by driving surface buoyancy loss through the associated brine rejection. Changes in Antarctic sea ice have therefore been suggested as drivers of major glacial-interglacial ocean circulation rearrangements. Here, the relationship between Antarctic sea ice, buoyancy loss, deep-ocean stratification, and overturning circulation is investigated in Last Glacial Maximum and preindustrial simulations from the Paleoclimate Modelling Intercomparison Project (PMIP). The simulations show substantial intermodel differences in their representation of the glacial deep-ocean state and circulation, which is often at odds with the geological evidence. We argue that these apparent inconsistencies can largely be attributed to differing (and likely insufficient) Antarctic sea-ice formation. Discrepancies can be further amplified by short integration times. Deep-ocean equilibration and sea-ice representation should, therefore, be carefully evaluated in the forthcoming PMIP4 simulations. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200048 |
WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; SOUTHERN-OCEAN ; ATMOSPHERIC CO2 ; ATLANTIC-OCEAN ; CARBON-CYCLE ; NCAR-CCSM ; MAXIMUM ; STRATIFICATION ; TEMPERATURE ; WESTERLIES |
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/29157 |
专题 | 气候变化 |
作者单位 | Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA |
推荐引用方式 GB/T 7714 | Marzocchi, Alice,Jansen, Malte F.. Connecting Antarctic sea ice to deep-ocean circulation in modern and glacial climate simulations[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Marzocchi, Alice,&Jansen, Malte F..(2017).Connecting Antarctic sea ice to deep-ocean circulation in modern and glacial climate simulations.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Marzocchi, Alice,et al."Connecting Antarctic sea ice to deep-ocean circulation in modern and glacial climate simulations".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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