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Spatiotemporal Variations of Coastal Sediment Transport at Barrier Islands in the Nakdong River Estuary  

Jeon, Yong-Ho (Research Center for Ocean Industrial Development, Pukyong National University)
Yoon, Han-Sam (Research Center for ocean Industrial Development, Pukyong National University)
Lee, Kyung-Seon (Dept. of Ocean Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.16, no.2, 2010 , pp. 161-168 More about this Journal
Abstract
We conducted a field survey of the generation and development of the delta area of the Nakdong River estuary, Korea. To examine deposition and erosion of the barrier islands, we observed the spatiotemporal variations of sediment transport and quantitatively estimated the settling velocity of coastal sediment. For the field survey, we established two survey sites off the coasts of Jinu Island and Doyodeung, which had shown rapid variations in deposition and erosion. At these sites, we measured the net surface elevation change of the bottom level at approximately 1-month intervals. Main findings were summarized as follows. (1) Calculated daily deposition and erosion velocity during the observation period ranged from -1.39 to 3.56cm/day at Jinu Island and from -4.0 to 3.07cm/day at Doyodeung, respectively. (2) Although two typhoons passed by the study area during the observation period, the maximum net surface elevation was larger in October than during the passage of those typhoons.
Keywords
Nakdong River estuary; Field survey; Deposition and erosion; Sediment transport; Spatiotemporal variations;
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Times Cited By KSCI : 3  (Citation Analysis)
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