Journal
CONTINENTAL SHELF RESEARCH
Volume 135, Issue -, Pages 1-13Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.csr.2017.01.011
Keywords
Sediment dynamics; Estuarine morphology; Suspended load transport; Typhoon impact; Morphological changes; Wave effect
Categories
Funding
- Ministry of Science and Technology, Republic of China [MOST 104-2621-M-019006]
Ask authors/readers for more resources
On average, Taiwan is subjected to three or four typhoon invasions each year. As a typhoon approaches, strong ocean waves from the sea, which are accompanied by flash floods on land, can considerably change the morphology of estuaries. Thus, knowing the effect of typhoons is important for coastal management. This study uses simulations and field surveys to analyze the processes of sediment transport near the Beinan Estuary in southeastern Taiwan. A model that is based on Eulerian and Lagrangian methods is used to simulate sediment transport from fluvial flows, waves, and currents. Typhoons of various intensities, different types of fluvial hydrographs, and seasonal effects are used to study their effects on the bathymetry. The relationships among the fluvial sediments, the wave loads, and the evolution of the estuary are derived from the results. The results indicate that the morphology of the Beinan Estuary is governed by typhoon events and that the process of erosion, transport, and deposition of sediment are short. The amount of fluvial sediments that is required to cause changes in the estuary is determined based on these results, and this estimate can be used for erosion protection in the future.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available