Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| Distinct Variability between Semidiurnal and Diurnal Internal Tides at the East China Sea Shelf | |
Wang, Weidong1,2,3,4; Robertson, Robin5; Wang, Yang1,2,3,4 ; Zhao, Chen1,2,3,4; Hao, Zhanjiu1,2,3,4; Yin, Baoshu1,2,3,4,6; Xu, Zhenhua1,2,3,4
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| 2022-06-01 | |
| Source Publication | REMOTE SENSING
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| Volume | 14Issue:11Pages:20 |
| Corresponding Author | Xu, Zhenhua(xuzhenhua@qdio.ac.cn) |
| Abstract | Breaking internal tides and induced mixing are critical to shelf dynamics, including heat and mass exchanges. Spatiotemporal variability of internal tides and modulation factors for the southern East China Sea shelf were examined based on a combination of a three-month mooring velocity and satellite altimeter data. Semidiurnal and diurnal internal tides exhibited distinct temporal trends, with the semidiurnal internal tides enhanced by an order of magnitude during the latter half of the record, while the diurnal internal tides followed quasi spring-neap cycles with a generally stable intensity except for two specific periods of strengthening. These internal tides probably originated remotely over the shelf-slope area northeast of Taiwan. Time-varying stratification was the most important factor for the internal tidal magnitude. In addition, varying background currents influenced the diurnal critical latitude band, which explains the slightly enhanced diurnal internal tides during the two periods. Although both semidiurnal and diurnal internal tides were mode-1 dominated, the semidiurnal internal tides were surface intensified while the diurnal tides were bottom intensified. The proportion of higher mode internal tides increased during robust eddy activities. Stronger background vertical shear corresponded to high-frequency events and energy transfers from tidal frequencies to high frequencies associated with turbulent mixing. |
| Keyword | internal tides spatiotemporal variation East China Sea modal structure energy cascade |
| DOI | 10.3390/rs14112570 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Strategic Pioneering Research Program of CAS ; National Natural Science Foundation of China (NSFC) ; NSFC-Shandong Joint Fund ; National Key Research and Development Program of China[XDA22050202] ; National Key Research and Development Program of China[92058202] ; National Key Research and Development Program of China[XDB42000000] ; National Key Research and Development Program of China[42076022] ; National Key Research and Development Program of China[U1806227] ; National Key Research and Development Program of China[2017YFA0604102] ; CAS Key Research Program of Frontier Sciences ; Key Deployment Project of Center for Ocean Mega-Research of Science ; CAS ; CSIRO[QYZDB-SSW-DQC024] ; CSIRO[COMS2020Q07] ; CSIRO[133244KYSB20190031] |
| WOS Research Area | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS Subject | Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS ID | WOS:000808656400001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/179453 |
| Collection | 海洋环流与波动重点实验室 |
| Corresponding Author | Xu, Zhenhua |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Xiamen Univ Malaysia, China Asean Coll Marine Sci, Sepang 43900, Malaysia 6.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Wang, Weidong,Robertson, Robin,Wang, Yang,et al. Distinct Variability between Semidiurnal and Diurnal Internal Tides at the East China Sea Shelf[J]. REMOTE SENSING,2022,14(11):20. |
| APA | Wang, Weidong.,Robertson, Robin.,Wang, Yang.,Zhao, Chen.,Hao, Zhanjiu.,...&Xu, Zhenhua.(2022).Distinct Variability between Semidiurnal and Diurnal Internal Tides at the East China Sea Shelf.REMOTE SENSING,14(11),20. |
| MLA | Wang, Weidong,et al."Distinct Variability between Semidiurnal and Diurnal Internal Tides at the East China Sea Shelf".REMOTE SENSING 14.11(2022):20. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| remotesensing-14-025（6447KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | View | |
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