A5055082130- Coastal wetland ecosystem dynamics
- Coastal and Marine Dynamics
- Oceanographic and Atmospheric Processes
- Marine and coastal ecosystems
- Geological formations and processes
- Tropical and Extratropical Cyclones Research
- Ocean Waves and Remote Sensing
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Marine and fisheries research
- Aeolian processes and effects
- Environmental Changes in China
- Climate variability and models
- Marine and coastal plant biology
- Underwater Acoustics Research
- Wave and Wind Energy Systems
- Geological and Geophysical Studies
- Meteorological Phenomena and Simulations
- Marine Bivalve and Aquaculture Studies
- Soil and Water Nutrient Dynamics
- Coastal and Marine Management
- Aquatic and Environmental Studies
- Flood Risk Assessment and Management
- Phosphorus and nutrient management
- Hydrology and Sediment Transport Processes
East China Normal University
2015-2025
The Changjiang River (CR) is divided into a southern branch (SB) and northern branche (NB) by Chongming Island as the river enters East China Sea. Observations reveal that during dry season saltwater in inner shelf of Sea flows CR through NB forms an isolated mass upstream area SB. physical mechanism causing this intrusion has been studied using high‐resolution unstructured‐grid Finite‐Volume Coastal Ocean Model (FVCOM). results suggest caused complex nonlinear interaction process relation...
Physical mechanisms for the summertime offshore detachment of Changjiang Diluted Water (CDW) into East China Sea are examined using high‐resolution, unstructured‐grid, Finite‐Volume Coastal Ocean Model (FVCOM). The model results suggest that isolated low salinity water lens detected west Cheju Island can be formed by (1) a large‐scale adjustment flow field to discharge and (2) anticyclonic eddies as result baroclinic instability CDW front. Adding intensifies clockwise vorticity subsurface...
The 1951–2004 time series of annual sediment supply from the Yangtze were analyzed using wavelet method. Coastal bathymetric data processed Arc‐GIS software. A typical intertidal flat was measured May 2002 to August 2005 for comparison bed levels before and after Three Gorges Dam (TGD). There is a significant decreasing trend in riverine since late 1960s, which attributed mainly dam constructions. TGD reduced load to147 mt/yr 2004, only 35% average. In response this drastic decrease, deltaic...
Abstract Simulating the sediment transport in a high‐turbidity region with spatially varying bed properties is challenging. A comprehensive strategy that integrates multiple methods applied here to retrieve critical shear stress for erosion, which plays major role suspended dynamics Changjiang Estuary (CE). Time‐series of sea surface concentration (SSC) were retrieved from Geostationary Ocean Color Imager (GOCI) satellite data at hourly intervals (for 8 h each day) and combined hydrodynamic...
Abstract Coastal ecosystems are strongly influenced by terrestrial inputs of freshwater, sediments, and nutrients, particularly in a megariver estuary the Changjiang River. A remarkable increase nutrient loading from River to shelf has been observed over period 1999 2016 turned region into high eutrophication condition. The Finite‐Volume Community Ocean Model European Regional Seas Ecosystem were coupled assess impact on interannual variability nutrients phytoplankton. model was first...
Abstract Physics‐informed neural networks (PINNs) are increasingly being used in various scientific disciplines. However, dealing with non‐stationary physical processes remains a significant challenge such models, whereas fluid motions typically non‐stationary. In this study, PINN‐based method was designed and optimized to solve dynamics shallow water equations polar coordinate system (PINN‐SWEP). It developed validated classic circular basin case that is well‐documented literature. the...
Abstract. A comprehensive multi-year field campaign, the North Passage Channel Measurements (NP-ChaM), was designed and executed to enhance our understanding of hydrodynamics sediment dynamics in Passage, primary navigation channel Changjiang Estuary, China. The NP-ChaM campaign comprised eight observational sites spanned 50 d, distributed over 4 years, including two dry seasons wet seasons. series tripod systems, equipped with multiple instruments, were deployed on seabed monitor near-bed...
It has been argued for many years whether the Taiwan Warm Current (TWC) exists in winter, though there is no question about its existence summer. A regional CTD survey and anchored ADCP measurements were conducted off mouth of Changjiang on western shelf East China Sea from 24 February to 10 March 2001. Both hydrographic current data showed an evidence TWC, which flowed northeastward along 50‐m isobath intruded into submerged river valley Changjiang. This sub‐surface intensified, with a...
Abstract The concentrated benthic suspension (CBS) of mud, as a major contributor sediment transport in the turbidity maximum estuary, is great challenge to be correctly monitored through field measurements, and its formation mechanism not well understood. A tripod system equipped with multiple instruments was deployed measure near‐bed hydrodynamics sediments North Passage Changjiang Estuary, aim at determining mechanisms CBS. measurements detected significant dominance high concentration...
Abstract Fluid mud (FM) is a unique sedimentary feature in high‐turbidity estuaries, where it can make rapid contribution to morphodynamics. Insufficient field measurements and fixed‐point monitoring lead deficient understandings of the formation, transport, breakdown FM under extreme weather conditions. A survey was conducted Changjiang Estuary during period turbidity maximum, just after Typhoon Haikui. The captured formation beneath suspended layers, particularly around lower reach North...
Abstract Lateral flows redistribute sediment and influence the morphodynamics of channel‐shoal systems. However, our understanding lateral transport suspended during high low water slack is still fairly limited, especially in engineered estuaries. Human interventions such as dike‐groyne structures exchange mechanisms. The present study aims to unravel these mechanisms a heavily engineered, turbid system Changjiang Estuary, using high‐resolution unstructured‐grid three‐dimensional model situ...