• Title/Summary/Keyword: Chungkye Bay

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Effects of Tidal Flat Enlargement Induced by Tidal Amplification (조석확폭에 수반되는 조간대 영역 확대의 영향성)

  • Kang Ju Whan;Moon Seung Rok;Park Seon Jung
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.17 no.1
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    • pp.47-54
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    • 2005
  • A method has been developed, which can be handled easily and economically for inputting depth data of complex bathymetry and enourmous tidal flats such as Mokpo coastal zone. The method is applied to Chungkye Bay, and some hydrodynamic features related with tidal flat are analyzed. Tidal amplification by construction of the sea-dike and sea-walls had been detected not only near Mokpo Harbor but also at Chungkye Bay which is connected with Mokpo Harbor by a narrow channel. This brings about the increase of tidal flat area, which makes the ebb dominance at Chungkye Bay more seriously. This pronounced ebb dominance with the increase of tidal discharge at the channel between Chungkye Bay and Mokpo Harbor, which results in deepened ebb dominance near Mokpo Harbor as well.

Wave Inundation at Mokpo Harbor (목포항에서의 풍파로 인한 범람)

  • Lee, Jung-Lyul;Kang, Juo-Hwan;Moon, Seung-Rok;Lim, Heung-Soo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.574-578
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    • 2006
  • Tidal amplification by construction of the sea-dike and sea-walls had been detected not only near Mokpo Harbor but also at Chungkye Bay which is connected with Mokpo Harbor by a narrow channel. This brings about increase of tidal flat area and in particular increase of surge-wave combined runup during storms. The purpose of this study is to examine an efficient operational model that can be used by civil defense agencies for real-time prediction and fast warnings on wind waves and storm surges. Instead of using commercialized wave models such as WAM, SWAN, the wind waves are simulated by using a new concept of wavelength modulation to enhance broader application of the hyperbolic wave model of the mild-slope equation type. Furthermore, The predicting system is composed of easy and economical tools for inputting depth data of complex bathymetry and enormous tidal flats such as Mokpo coastal zone. The method is applied to Chungkye Bay, and possible inundation features at Mokpo Harbor are analyzed.

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Numerical Simulation of Surge - Wave Combined Inundation at Mokpo North Harbor (목포 북항에서 풍파에 의한 해수범람의 수치 모의)

  • Lee, Jung Lyul;Kang, Ju Whan;Yoon, Jong Tae
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.3B
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    • pp.307-313
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    • 2008
  • Tidal amplification by construction of sea-dike and sea-walls had been detected not only near Mokpo North Harbor but also at Chungkye Bay which is connected with Mokpo North Harbor by a narrow channel. This brings about increase of tidal flat area and in particular increase of runup height and inundation area during storms. In this study, a simulation process is composed of wind wave generation model for large area and wave inundation model for small coastal zone. The nonlinear version of mild-slope equation is modified for simulating wind-driven surge and wave inundation at a small area. The models are applied to Chungkye Bay, and possible inundation features at Mokpo North Harbor are investigated.

Applicability of 3-D Models for Hydrodynamic Simulation near Tidal Flat Area (조간대 해역의 3차원 유동모형 적용성)

  • Kang, Ju-Whan;Kim, Yang-Seon;So, Jae-Kwi
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.14 no.3
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    • pp.176-183
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    • 2011
  • Applicabilities of two 3-D hydrodynamic models on Chungkye Bay in which tidal flats are well developed were examined. Both EFDC model and ESCORT model with the ${\sigma}$-coordinate showed fairly good results. However, their efficiencies were lowered especially on the tidal flats due to dense vertical grids. This inefficiency could be overcome by using the z-coordinate of the ESCORT model keeping similar accuracy.