Abstract
Delft3D Flexible Mesh (DFM) was used in 2D to compute hydrodynamics and sediment transport in the Mekong Delta. DFM is a process-based model which is solves the two- and three-dimensional shallow equations, based on the finite volume method (Kernkamp et al., 2011).The computational grid covers the entire Mekong Delta, from Kratie, Cambodia to East Sea shelf. It consists of a multi-dimensional grid which includes 1D and 2D combinations. The primary and secondary canals are represented in 1D networks while 2D cells are used for the Mekong River mainstreams, floodplains and shelf. The hydrodynamics results was calibrated and validated by (Thanh et al., 2019). The sediment model was calibrated against the measured data of suspended sediment concentration and fluxes during water year 2011.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/qnKtpFcrMWU
Highlights
Understanding the sediment dynamics in more detail helps to have a better insight into the functioning of the river and delta system and the helps to forecast development under climate change scenarios Deriving sediment budgets by data alone brings along high uncertainties due to limited data availability
Numerical modelling is an efficient tool for understanding sediment dynamics and estimating sediment budget
This study aims at understanding the suspended sediment dynamics and estimating the sediment budget in the Mekong Delta using a numerical model
Summary
Vo Quoc Thanh, IHE Delft and Can Tho University, vqthanh07@gmail.com Dano Roelvink, IHE Delft, d.roelvink@un-ihe.org The worldwide sediment flux to the coastal ocean is roughly estimated at about 12.8-15.1 Gt per year (Syvitski and Kettner, 2011). The sediments feed systems like the Mekong Delta prograding its delta and coastline, and supply sediment to agricultural areas and wetlands during river floods.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
