Hydrodynamic regimes and proposed structure for flood drainage and navigation stability in Thuan an estuary, Vietnam

Nguyen Thanh Hung (), Vu Dinh Cuong (), Nguyen Tien Thanh (), Nguyen Van Hung () and Trieu Quang Quan ()

Asian Review of Environmental and Earth Sciences, 2024, vol. 11, issue 1, 1-9

Abstract: Thua Thien Hue province is significantly affected by conditions of climate change and sea level rise. Located in central Vietnam, the province experiences various climate-related challenges that have a strong impact on its environment and communities. Furthermore, the complexity of hydrodynamic regimes at main estuaries is reasonably challenge for the development of socio-economic, especially in water transportation. As a large estuary of Thua Thien Hue province, Thuan An play a special role in flood drainage and waterway navigation of Huong River. Therefore, understanding the hydrodynamic regime of Thuan An estuary is crucial due to the continuous alterations in its morphology during monsoon seasons. Sedimentation within the estuary creates obstacles for the river mouth entering channel, while erosion affects the northern and southern coasts. These changes have direct implications for flood drainage and waterway navigation. To gain insights into the hydrodynamic regime, this study focuses on further interpretation the hydrodynamic regimes in Thuan An inlet using Delft3D model combined with ArcGIS tools. By combining scientific modeling and practical implications, this study contributes to a better understanding the hydrodynamics of Thuan An estuary, ultimately facilitating sustainable development and management of this vital waterway system. Importantly, proposed structure for flood drainage and navigation stability in Thuan An estuary is considered with the elongation of 2 jetties. The proposed measure shows that the flood drainage is insignificantly affected and the water level at mostly locations in the river is not changed.

Keywords: Central Vietnam; Delft3D; Hydrodynamic regime; Thua Thien Hue; Thuan An estuary; Training works; Tropical cyclones; Water transportation. (search for similar items in EconPapers)
Date: 2024
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