A5030359691- Oceanographic and Atmospheric Processes
- Climate variability and models
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Underwater Acoustics Research
- Marine and fisheries research
- Ionosphere and magnetosphere dynamics
- Arctic and Antarctic ice dynamics
- Coastal and Marine Dynamics
- Geology and Paleoclimatology Research
Second Institute of Oceanography
2019-2025
Ministry of Natural Resources
2019-2025
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2020-2024
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
2020-2024
Abstract Conventional methods of measuring water discharge and suspended sediment concentration (e.g., sampling moving acoustic Doppler current profiler [ADCP]) present challenges in large tidal rivers due to temporal spatial constraints. This study introduces a novel approach monitor (SSD) rivers. Total SSD exhibit notable variability the river–tidal interactions; understanding this its causes is essential for effective river management. From June November 2023, field was conducted at...
Abstract Transverse‐vertical structure and temporal variability of the Kuroshio current across Tokara Strait during 2003–2012 measured by a ferryboat acoustic Doppler profiler with 2‐km horizontal resolution two‐day interval are presented. The passing through exhibits multicore velocity structure. Its seasonal volume transport variation is biannual for baroclinic components relative to 700 m, peaking in July December–January. However, barotropic component an annual cycle maximum December....
Abstract The abyssal current is important for water renewal and energy conversion in the deep South China Sea (SCS), it potentially contributes to upper middle circulations. A mooring array including 11 pressure‐recording inverted echo sounders was deployed northern SCS between July 2016 April 2019 observe large‐scale long‐term currents. yearly averaged flows southwestward following boundary with a maximum velocity of 2.25–2.52 cm/s. spatial structure exhibits weaker wider north, where...
Abstract Using a large-scale observation array of 27 simultaneous pressure-recording inverted echo sounders (PIESs), the standing wave features mode-1 M 2 internal tide west Luzon Strait (LS) were identified. These exhibited nonmonotonic spatial phase shifts and half-wavelength amplitude modulation, resulting in spatially varying amplitudes under PIES observations, which have not been previously observed field observations LS. Satellite altimeter measurements also identified standing-wave...
Abstract Linear trends in Kuroshio transport during a recent global warming hiatus (1998–2013) were evaluated using long‐term ferryboat ADCP (acoustic Doppler current profiler) data and tidal gauge the Tokara Strait south of Japan. The exhibited remarkable weakening trend approximately 0.05 Sv year −1 (1 = 10 6 m 3 s ). pycnocline weakened was relaxed displayed shoaling at offshore edge, which attributed to vertical thermocline displacement rather than water mass modification. Importantly,...
Abstract Using observational and reanalysis data sets, we investigated interannual variability in the Kuroshio East China Sea (ECS‐Kuroshio). We exhibited that surface velocity position of ECS‐Kuroshio were synchronized on a quasi‐3‐year timescale during 2005–2016. further demonstrated that: (a) 2005–2016, wind stress curl related to El Niño–Southern Oscillation (ENSO) played leading role by exciting baroclinic Rossby waves along subtropical countercurrent (STCC) zone east Taiwan; (b)...
Abstract Energetic internal tides (ITs) are generated from the Luzon Strait (LS) and propagate westward into South China Sea (SCS). Owing to lack of large-scale synchronous measurements, propagation features seasonal variations diurnal ITs remain unclear. From 2018 2019, mode-1 west LS were continuously observed using a moored array 27 pressure-recording inverted echo sounders (PIESs) thermistor chain. Measurements confirmed that radiate with north–south asymmetrical pattern, most energetic...
To accurately reconstruct large-area three-dimensional current fields in coastal regions, simultaneous observations with ten acoustic tomography (CAT) stations and two high-frequency radar (HFR) were performed the Xiangshan Bay (XSB) on 4–5 December 2020. The section-averaged velocity that was observed by CAT radial HFR were, for first time, synchronously assimilated into a barotropic ocean model. Compared Doppler profile data, velocities of model assimilating both data had highest accuracy...
Abstract Linear trends in the Ryukyu Current, a part of western boundary current North Pacific flowing on seaside Island chain, were investigated using reanalysis data during 1993–2018. The subsurface Current has weakened along its path recent decades. Two determinant factors for are as follows. First, first baroclinic topographic Rossby wave propagated signals emanating from Tokara Strait (TK) and Kerama Gap (KG) southward eastern slope which depressed onshore side isopycnal. Kuroshio TK...
Abstract The El Niño‐Southern Oscillation (ENSO)‐related interannual variability of the Kuroshio in East China Sea (ECS) was revisited based on reanalysis outputs during 1993–2018. Unlike synchronized variations from 2006 to 2018, period 1993–2005 showed regional differences how ECS‐Kuroshio responded ENSO events. Specifically, upstream region midway continental slope, exhibited distinct six‐year modulation 1993–2005. In contrast, downstream primarily followed a four‐year cycle, aligning...
Herein, the temporal variability of deep overflow through Kerama Gap between East China Sea and Philippine is investigated based on observational data combined with reanalysis obtained during 2004–2011. The observations model results show a strong bottom-intensified flow intruding into Okinawa Trough. observed shows intraseasonal variations that are enhanced from August to November. in via well-correlated density changes near its sill depth Sea. Additionally, some portion dense water...