文献类型：期刊文献

英文题名：Observation of near-inertial oscillations trapped over inclined front on continental shelf of the northwestern South China Sea

作者：Li, Junyi[1,2,3];Zhang, Shuangshang[1,2];Li, Gang[1];Xie, Lingling[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China;[2]Key Lab Climate Sources & Environm Continent Shelf, Zhanjiang 524088, Peoples R China;[3]MNR, Key Lab Space Ocean Remote Sensing & Applicat, Beijing 100081, Peoples R China

年份：2026

卷号：258

外文期刊名：JOURNAL OF MARINE SYSTEMS

收录：SCI-EXPANDED(收录号：WOS:001887127300001)、、EI(收录号：20263921532325)、Scopus(收录号：2-s2.0-105051227415)、WOS

基金：This research was funded by the National Natural Science Foundation of China (42476027, 42276019, 42306195); Guangdong Basic and Applied Basic Research Foundation (2024A1515012572, 2025A1515010741); Innovation Team Plan for Universities in Guangdong Province (2023KCXTD015); Guangdong Provincial Observation and Research Station for Tropical Ocean Environment in Western Coastal Water (2024B1212040008), Hainan Key R&D Project (ZDYF2023GXJS151), Basic Research Fund of CAMS (2023Y008).

语种：英文

外文关键词：Near-inertial oscillations; Inclined front; Non-linear interaction; Winter storm

外文摘要：Interactions of near-inertial oscillations (NIOs) with other oceanic processes have been broadly investigated in recent years. This study presents enhanced NIOs observed from a seabed-based platform, which are trapped over an inclined front with strong stratification on the continental shelf of the northern South China Sea (NSCS) during January-February 2021. The current observations reveal that four NIO events occurred induced by wind bursting. Under the similar wind forcing, NIO currents in the third event increased from <0.05 m s(-1) to about 0.08 m s(-1). The mechanism analysis shows that the amplitude of NIOs was modulated by the shoaling depth of the mix-layer induced by the inclined front, and trapped in the upper layer. In addition, a remarkable non-linear interaction (fD1) between NIOs and diurnal spring tide occurred at the front zone owing to a strong vertical current shear at the depths of 20-50 m. The energy transferred from front to NIOs provides an interpretation for this trapped NIO signal. The underlying driving mechanism of this observation would be important for explication of energy exchanges between mesoscale oceanic processes, and is worthy of further study.