North Atlantic subtropical mode water formation controlled by Gulf Stream fronts
文献类型：期刊论文
| 作者 | Gan, Bolan2,4; Yu, Jingjie2; Wu, Lixin2,4; Danabasoglu, Gokhan3; Small, R. Justin3; Baker, Allison H.3; Jia, Fan1,4; Jing, Zhao2,4; Ma, Xiaohui2,4; Yang, Haiyuan2,4 |
| 刊名 | NATIONAL SCIENCE REVIEW
 |
| 出版日期 | 2023-05-08 |
| 页码 | 10 |
| ISSN号 | 2095-5138 |
| 关键词 | North Atlantic subtropical mode water Gulf Stream thermal fronts frontal-scale ocean-to-atmosphere feedback eddy-resolving coupled global climate model |
| DOI | 10.1093/nsr/nwad133 |
| 通讯作者 | Gan, Bolan(gbl0203@ouc.edu.cn) |
| 英文摘要 | Frontal-scale ocean-to-atmosphere feedback determines the formation of subtropical mode water in the North Atlantic. The North Atlantic Ocean hosts the largest volume of global subtropical mode waters (STMWs) in the world, which serve as heat, carbon and oxygen silos in the ocean interior. STMWs are formed in the Gulf Stream region where thermal fronts are pervasive and result in feedback with the atmosphere. However, their roles in STMW formation have been overlooked. Using eddy-resolving global climate simulations, we find that suppressing local frontal-scale ocean-to-atmosphere (FOA) feedback leads to STMW formation being reduced almost by half. This is because FOA feedback enlarges STMW outcropping, attributable to the mixed layer deepening associated with cumulative excessive latent heat loss due to higher wind speeds and greater air-sea humidity contrast driven by the Gulf Stream fronts. Such enhanced heat loss overshadows the stronger restratification induced by vertical eddies and turbulent heat transport, making STMW colder and heavier. With more realistic representation of FOA feedback, the eddy-present/rich coupled global climate models reproduce the observed STMWs much better than the eddy-free ones. Such improvement in STMW production cannot be achieved, even with the oceanic resolution solely refined but without coupling to the overlying atmosphere in oceanic general circulation models. Our findings highlight the need to resolve FOA feedback to ameliorate the common severe underestimation of STMW and associated heat and carbon uptakes in earth system models. |
| WOS关键词 | CLIMATE MODELS ; HEAT FLUXES ; SEA ; OCEAN ; SCALE ; VARIABILITY ; PACIFIC ; SYSTEM ; EDDIES ; CO2 |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:001019354700001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182403]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Gan, Bolan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Ocean Univ China, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Phys Oceanog Lab, Qingdao 266100, Peoples R China 3.Natl Ctr Atmospher Res, Boulder, CO 80305 USA 4.Laoshan Lab, Qingdao 266200, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gan, Bolan,Yu, Jingjie,Wu, Lixin,et al. North Atlantic subtropical mode water formation controlled by Gulf Stream fronts[J]. NATIONAL SCIENCE REVIEW,2023:10. |
| APA | Gan, Bolan.,Yu, Jingjie.,Wu, Lixin.,Danabasoglu, Gokhan.,Small, R. Justin.,...&Chen, Zhaohui.(2023).North Atlantic subtropical mode water formation controlled by Gulf Stream fronts.NATIONAL SCIENCE REVIEW,10. |
| MLA | Gan, Bolan,et al."North Atlantic subtropical mode water formation controlled by Gulf Stream fronts".NATIONAL SCIENCE REVIEW (2023):10. |
入库方式： OAI收割
来源：海洋研究所
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