Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Internal Wave Imprints on Temperature Fluctuations as Revealed by Rapid-Sampling Deep Profiling Floats | |
| Gao, Zhiyuan1,2; Chen, Zhaohui1,2; Huang, Xiaodong1,2; Xu, Zhenhua2,3; Yang, Haiyuan1,2; Zhao, Zhongsheng1,2; Ren, Chong2; Wu, Lixin1,2 | |
| 2021-12-01 | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
 |
| ISSN | 2169-9275 |
| 卷号 | 126期号:12页码:20 |
| 通讯作者 | Chen, Zhaohui([email protected]) |
| 摘要 | Internal waves play important roles in modulating the temperature variations and heat transfers in stratified oceans. However, due to the deep ocean measuring approach limitations, it is still challengeable to characterize the temperature fluctuations induced by internal waves in the deep oceans below 2,000 m. In this study, a fleet of rapid-sampling deep profiling floats with an approximately daily sampling rate was deployed in the northeastern South China Sea (SCS), Philippine Basin (PB), Mariana Arc (MA), and Kuroshio Extension (KE). Results show that the internal waves, internal tides or near-inertial waves, have considerable imprints on local temperature fluctuations. Geographically, the internal wave induced temperature fluctuations are generally larger in the PB and MA, indicative of a strong deep signature of internal tides generated by local energetic tide-topography interactions or radiation from remote sources. The temperature fluctuations at 4,000 m can reach up to 7 m degrees C in most regions, which may cover up real signals of temperature change, posing challenges to assess the deep ocean warming rate through currently insufficient deep profiling floats. Besides, the amplitude of isopycnal displacement in the PB and MA is evidently larger than in KE at 4,000 m, which implies enhanced diapycnal diffusivity and mixing in the deep layers of open oceans with rough topography. |
| 关键词 | internal wave temperature fluctuations deep floats deep ocean |
| DOI | 10.1029/2021JC017878 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[42076009]; National Natural Science Foundation of China[41527901]; National Key Research and Development Program of China[2016YFC1402606]; Qingdao Pilot National Laboratory for Marine Science and Technology[2020WHZZB0101]; Qingdao Pilot National Laboratory for Marine Science and Technology[2017ASTCP-ES05]; Fundamental Research Funds for the Central Universities[202072001]; Taishan Scholar Funds[tsqn201812022] |
| WOS研究方向 | Oceanography |
| WOS类目 | Oceanography |
| WOS记录号 | WOS:000735870300039 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/177684 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Chen, Zhaohui |
| 作者单位 | 1.Ocean Univ China, Key Lab Phys Oceanog, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Inst Adv Ocean Sci, Qingdao, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao, Peoples R China 3.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Zhiyuan,Chen, Zhaohui,Huang, Xiaodong,et al. Internal Wave Imprints on Temperature Fluctuations as Revealed by Rapid-Sampling Deep Profiling Floats[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(12):20. |
| APA | Gao, Zhiyuan.,Chen, Zhaohui.,Huang, Xiaodong.,Xu, Zhenhua.,Yang, Haiyuan.,...&Wu, Lixin.(2021).Internal Wave Imprints on Temperature Fluctuations as Revealed by Rapid-Sampling Deep Profiling Floats.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(12),20. |
| MLA | Gao, Zhiyuan,et al."Internal Wave Imprints on Temperature Fluctuations as Revealed by Rapid-Sampling Deep Profiling Floats".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.12(2021):20. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| JGR Oceans - 2021 - （5705KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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