Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Sediment properties in the fluvial and estuarine environments of the Mekong River
Le, H.-A.; Gratiot, N.; Santini, W.; Ribolzi, O.; Soares-Frazão, S.; Deleersnijder, E. (2018). Sediment properties in the fluvial and estuarine environments of the Mekong River. E3S Web Conf. 40: 05063. https://hdl.handle.net/10.1051/e3sconf/20184005063
In: E3S Web of Conferences. EDP Sciences. ISSN 2267-1242; e-ISSN 2267-1242, meer
|  |
| Auteurs | | Top |
- Le, H.-A., meer
- Gratiot, N.
- Santini, W.
|
- Ribolzi, O.
- Soares-Frazão, S., meer
- Deleersnijder, E., meer
|
|
| Abstract |
The Mekong river, located in Southeast Asia, is one of the largest rivers in the world. It is facing serious problems related to sediment transport, e.g. the reduction of sediment volume supply to the delta and estuary. This study focuses on the physical properties of suspended particles in the upstream fluvial section (Luang Prabang, Laos) and in the region of tidal influence (Song Hau estuary, Vietnam). These sites are respectively the upper and lower limits of the Lower Mekong River (LMR), which are experiencing contrasted transport modes. The main objective of this study is to quantify the proportion of inert sand and of cohesive particles in the water through comprehensive measurements of particle size, settling velocity and flocculation in the water column. Two field campaigns were undertaken in the summer monsoon season. The results point out the predominance of flocculi, with sizes of 18 ± 5 μm in the fluvial environment and 15 ± 5 μm in the estuary and the similarities in patterns, mixture of sand (12 ± 5 %) and mud (88 ± 5 %). They also provide a statistically representative set of suspended particle populations in the upstream and downstream regions that could be used for improving numerical models. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
