Effect of changes in outer-delta bottom topographies on salt water intrusion

Effect of changes in outer-delta bottom topographies on salt water intrusion

Van Aarle, R.R.J.

Stive, M.J.F. (mentor)
Wang, Z.B. (mentor)
Mosselman, E. (mentor)
Ye, Q. (mentor)
Van Rooij, S. (mentor)

Civil Engineering and Geosciences

Hydraulic Engineering

2015-12-03

This study is about the effect of outer-delta bottom topographies adaptations on salt water intrusion in estuaries. An increase in salt water intrusion is considered as problematic in a lot of estuaries in the world. Various solutions are developed in the past to reduce salt water intrusion. These solutions have also negative side effects. An alternative developed idea is to prevent increases in salt water intrusion by the creation of islands in the outer delta. However it is unknown if it is possible to reduce salt water intrusion by the creation of these islands and how effective it will be. In this study three kind of outer-delta bottom topography adaptations are studied on their effect on salt water intrusion in estuaries. One of the considered adaptations is the creation of an island. The effectiveness is determined with model simulations of an estuary in the Mekong delta in Vietnam. Is it possible to reduce salt water intrusion with outer-delta bottom topography adaptations? And which aspects are responsible for a changed salt water intrusion distance? The objective of this study is to study the possibilities and effectiveness of three kinds of adaptations of the outer-delta bottom topography on reducing salt water intrusion.

salt water intrusion
estuary
estuaries
bottom topography adaptations
Mekong
Hau
Hau estuary
Bifurcated estuaries
Delta
Brackish water
reducing salt water intrusion
Balance Island

http://resolver.tudelft.nl/uuid:429e7e09-50c6-4eab-8d22-f38056d9ce8d

Student theses

master thesis

(c) 2015 Van Aarle, R.R.J.