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DOI | 10.1002/2017GL075182 |
Can the Ocean's Heat Engine Control Horizontal Circulation? Insights From the Caspian Sea | |
Bruneau, Nicolas1; Zika, Jan1,2; Toumi, Ralf1 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Australia |
英文摘要 | We investigate the role of the ocean's heat engine in setting horizontal circulation using a numerical model of the Caspian Sea. The Caspian Sea can be seen as a virtual laboratorya compromise between realistic global models that are hampered by long equilibration times and idealized basin geometry models, which are not constrained by observations. We find that increases in vertical mixing drive stronger thermally direct overturning and consequent conversion of available potential to kinetic energy. Numerical solutions with water mass structures closest to observations overturn 0.02-0.04x10(6)m(3)/s (sverdrup) representing the first estimate of Caspian Sea overturning. Our results also suggest that the overturning is thermally forced increasing in intensity with increasing vertical diffusivity. Finally, stronger thermally direct overturning is associated with a stronger horizontal circulation in the Caspian Sea. This suggests that the ocean's heat engine can strongly impact broader horizontal circulations in the ocean. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300042 |
WOS关键词 | SOUTHERN-OCEAN ; THERMOHALINE STRUCTURE ; SEASONAL VARIABILITY ; GENERAL-CIRCULATION ; MODEL ; CLIMATE ; FLUXES ; WATER ; TRANSPORT ; CLOSURE |
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/27780 |
专题 | 气候变化 |
作者单位 | 1.Imperial Coll London, Dept Phys, Blackett Lab, London, England; 2.Univ New South Wales, Sch Math & Stat, Kensington, NSW, Australia |
推荐引用方式 GB/T 7714 | Bruneau, Nicolas,Zika, Jan,Toumi, Ralf. Can the Ocean's Heat Engine Control Horizontal Circulation? Insights From the Caspian Sea[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Bruneau, Nicolas,Zika, Jan,&Toumi, Ralf.(2017).Can the Ocean's Heat Engine Control Horizontal Circulation? Insights From the Caspian Sea.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Bruneau, Nicolas,et al."Can the Ocean's Heat Engine Control Horizontal Circulation? Insights From the Caspian Sea".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
条目包含的文件 | 条目无相关文件。 |
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