At the interface between continental areas and oceans, estuaries and coastal zones are locations of energy exchange through currents, waves and tide, and matter exchange (water, organic and inorganic particles, dissolved pollutants). These environmental interfaces strongly impact socio-economic activities.
The overall objective of the project is to set up an integrated study of particle formation, transport and fate including field data, laboratory experiments, remote sensing and numerical modelling, with application to the Northern part of Vietnam (Halong Bay, Red River Delta and Haiphong Bay). Modelling will include the delivery of an integrated tide/wave/current/sediment model and will focus on modelling the physico-biological mechanisms of aggregation/disaggregation of sediments, based on profiles of turbulence in the water column, on availability of Suspended Particulate Matter (SPM), and abundance and stickiness of Transparent Exopolymer Particles (TEP) -which act as “biological glue” in the aggregation process- with varying salinity, turbulence and Black carbon concentrations. It will be implemented in a numerical model at local scale (Delft3D or MARS3D) reproducing the hydrodynamics of the estuary, forced at its boundaries by a regional numerical model (ROMS).
This project aims at developing an integrated study of particle formation, transport and fate in the Northern part of Vietnam (Halong Bay, Red River Delta and Haiphong Bay) through the association of USTH (N.N. Minh and upcoming PhD students), STI which is a main support of ocean color and satellite studies in Vietnam, IMER which has developed from a long time sediment modeling studies in these areas, which has long partnership experience with the French partners from IRD teams and which is the main partner of USTH in oceanography, and French partners from the consortium.
Hubert LOISEL, IRD
TRINH Bich Ngoc, USTH
Sylvain OUILLON, LEGOS-IRD
Xavier MARI, IRD
Marine HERRMANN, LEGOS-IRD
Cédric JAMET, LOG-ULCO
NGUYEN Nguyet Minh, USTH PhD Student
DINH Ngoc Dat, STI-VAST, USTH Phd Student
VU Duy Vinh, IMER-VAST, USTH Phd Student
TONG Si Son, USTH Phd Student