Thanh Cong Nguyen

• VNUHCM, University of Science, Ho Chi Minh City

Coastal suspended sediment dynamics and distributions are driven by complex forces and factors mainly related to wind-wave, currents and tide actions which resuspend unconsolidated sediment in the water-seabed layer and/or rework sediment in the seabed. Understanding the suspended sediment dynamics and their time- and space distribution are promine...

Pile-Rock breakwaters (PRBW) have been constructed as long continuous features in the West Sea of the Mekong Delta. Optimising the gap arrangement and spatial orientation of these continuous breakwaters can result in positive impacts on the velocity field, sediment distribution, and shoreline morphology. In this study, experimental and numerical mo...

Pile-Rock breakwaters (PRBW) have been constructed as a continuous long feature in the West Sea of the Mekong Delta. Being continuous breakwaters, their gap arrangement can influence the velocity field, sediment distribution, and their spatial orientation also influences sediment distribution and shoreline morphology. In this study, experimental an...

Southeast Asian deltas are highly threatened areas for flooding as a response to the combined effects of natural compaction and subsidence exacerbated by human impacts, e.g. oil, gas and water extraction, retention of sediment discharge due to river damming and sand mining, land use changes, sea-level rise and storm-induced water-level setup. Tide-...

Extreme coastline erosion has become a major issue in Vietnam's Mekong Delta. Many coastal protection measures have been assessed based on their ability to dissipate incoming waves rather than their ability to facilitate environmental exchange and sedimentation processes. The goal of this study is to evaluate the ability of hollow and porous types...

Can Gio (CG), a mangrove forest with a dense network of tidal creeks, gradually grew and spread seaward on a coastal platform, which was built since about 8 ka before present (BP). Along with this development, a sand ridge began to form and moved back with the shoreline withdrawal landward in the Late Holocene. This mangrove environment is likely a...

Sediment re-deposition in mangrove environments is usually attributed to marine and estuarine hydrodynamics - rainfall as a driver was not considered yet. However, combined with annual water level variations, tropical rainfall can play a significant role for sediment re-deposition. Inside mangroves, current velocities induced by rainwater run-off d...

Land–ocean interactions in the coastal zone are severely influenced by tidal processes. In regions of high sediment discharge like the Mekong River Delta in southern Vietnam, these processes are even more significant. Three cruises in 2006, 2007 and 2008 were carried out to investigate the sediment suspension and their spatial distribution. Additio...

Human activities, like embanking, sand mining, groundwater extraction and deforestation lead to strong changes of the deltaic environment. Especially, mangrove cutting influences strongly the coastal erosion along large areas of the southern Mekong delta coast. However, all currently published data document erosion from subaerial areas excluding th...

Mangrove forest, which in Can Gio district, Ho Chi Minh city, Southern Vietnam, covers an area of about 38.664 hectares, plays a special role in supporting fish, crabs, shrimps, shellfish, also in trapping sediment. Suspended sediment transport in this area also plays an important role in the coastal environment evolution. This study outlines field...

OBS (Optical Back-Scattered Sensor) instrument is one of the most modern instrument used to measure the concentration of suspended sediment. The light scattering of the suspended matter in the water strongly correlates with the concentration as well as their sizes. Therefore, the reliability of the field data also depends strongly on the in-situ ca...

Mangroves are a unique form of vegetation that exist at the boundary of two distinct environments. Mangrove forest plays a special role in supporting fisheries, in stabilizing tropical coastal zones, also in trapping sediment. This study outlines field experiments on some hydrodynamic characteristics at Dong Tranh estuary, Can Gio mangrove forest,...