IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Managing deltas : Patterns of seawater intrusion at a river mouth
Patterns of seawater intrusion at a river mouth
Based on data from field survey and numerical modeling, seawater intrusion patterns and salinity process in Modaomen Waterway of the Pearl River Estuary are studied. It is found that seawater intrudes and exists in this waterway alternately in three patterns, i.e., saline wedge ĘC transition ĘC fully mixing ĘC transition ĘC saline wedge, under certain combinations of hydrodynamic conditions of the river and the sea. This alternate change of seawater intrusion makes the salinity process on river cross section periodically changing with the lunar cycle of tide. In view of this, an indicator and a set of criteria are developed to predict patterns of seawater intrusion using mainly freshwater discharge from upstream of the river and tidal range. This prediction forms a base to further predict salinity process at any point in the river course so as to serve for water intake and irrigation.
File Size : 666,323 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Managing deltas
Date Published : 19/08/2015
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