Browse > Article
http://dx.doi.org/10.9765/KSCOE.2014.26.4.253

Numerical Modeling of Circulation Characteristics in the Kwangyang Estuarine System  

Kim, Baek Jin (Department of Oceanography, College of Natural Sciences, Chungnam National University)
Ro, Young Jae (Department of Oceanography, College of Natural Sciences, Chungnam National University)
Jung, Kwang Young (Department of Oceanography, College of Natural Sciences, Chungnam National University)
Park, Kwang Soon (Korea Institute of Ocean Science & Technology)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.26, no.4, 2014 , pp. 253-266 More about this Journal
Abstract
The ECOM3D is used to study the circulation characteristics and density current from the Sumjin River runoff in the Kwangyang Estuarine System, South Sea, Korea. Annual mean value of $120m^3/s$ was imposed from the Sumjin River. The numerical model results in terms of tidal height, current and salinity field show satisfactory with skill scores over 90%. The current velocity showed the range of 1~2.5 m/s during flood and ebb phases. In particular, very strong flow occur in the narrow Channels of Noryang, Daebang and Changson exceeding over 2.0 m/s. The tidal residual currents in the various locations in the Kwangyang Estuary showed the range of 1~21 cm/s, The density-driven current through the Yeosu and Noryang Channels are about 12 cm/s and 4 cm/s, respectively. The current path through the Yeosu Channel is deflected toward west Bank. Based on budget analysis of the volume flux, the volume flux through the Yeosu Channel and the Noryang Channel were estimated to be 97.4 and $22.1m^3/s$ accounting for the 81.5% and 18.5% of total flux, respectively.
Keywords
numerical modeling; KwangYang Bay; Sumjin River; density-driven current; volume flux; salinity;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
연도 인용수 순위
1 Guo, X. and Valle-Levinson, A.(2007). Tidal effects on estuarine circulation and outflow plume in the Chesapeake Bay, Cont Shelf Res, 27, 20-42.   DOI
2 Blumberg, A. and Mellor, G.(1987). A description of three demensinal coastal ocean model. In: Heaps N (ed) Three demensional coastal ocean model. American Geophysical Union, Washington DC.
3 Blumberg, A.(2002). A primer for ECOMSED, Hydroqual Inc. 188pp.
4 Byun, C.S.(2011). Prediction of marine environment changes around the Nakdong River during summer. Master's Thesis, Korea Maritime University (in Korean).
5 Guo, X. and Valle-Levinson, A.(2008). Wind effects on the lateral structure of density-driven circulation in Chesapeake Bay, Cont Shelf Res, 28, 2450-2471.   DOI   ScienceOn
6 Han, S.D.(1995). Evaluation of mean tidal currents at Kwangyang and Chinju Bay, Connected into Noryang Channel. Theses Collection Vol. 13, 161-170.
7 Jeong, J.H.(2006). Simulation study on the temporal and spatial variations of hydrodynamics and environmental conditions in Gyeonggi Bay using a three-dimensional numerical model. Ph.D. Dissertation, Kwangwon University (in Korean).
8 Ji, Z., Hu, G., Shen, J., Wan, Y.(2007). Three-dimensional modeling of hydrodynamic processes in the St. Lucie Estuary, Estuarine Coastal and Shelf Science, 73, 188-200.   DOI   ScienceOn
9 Ji, X., Sheng, J., Tang, L., Liu, D. and Yang, X.(2011). Process study of circulation in the Pearl River Estuary and adjacent coastal waters in the wet season using a triply-nested circulation model, Ocean Modeling, 38, 138-160.   DOI
10 Jung, K.Y., Ro, Y.J.(2010). Stratification and destratification processes in the Kangjin Bay, South Sea, Korea. Journal of the Korean Society of Oceanography, 15(3), 97-109.   과학기술학회마을
11 Kim, C.K., Lee, J.T., Jang, H.S.(2010). Water circulation structure in Chinju Bay of Korea. Journal of Korean Society of Coastal and Ocean Engineers, 22(4), 215-223 (in Korean).   과학기술학회마을
12 Jung, K.Y.(2007). Three-dimensional numerical modeling of tidal, wind-driven and density currents in the Kangjin Bay, South Sea, Korea, Master's Thesis, Chungnam National University (in Korean).
13 Jung, K.Y., Ro, Y.J., Kim, B.J., Park, K.S.(2012). Model trajectory simulation for the behavior of the Namgang Dam water in the Kangjin Bay, South Sea, Korea. Journal of Korean Society of Coastal and Ocean Engineers, 24(2), 97-106 (in Korean).   과학기술학회마을   DOI
14 Kang, Y.S., Chae, Y.K., Lee, H.R.(2011). Variation of density stratification due to fresh water discharge in the Kwangyang Bay and Jinju Bay, Journal of Korean Society of Coastal and Ocean Engineers, 23(1), 126-137 (in Korean).   과학기술학회마을   DOI
15 Kwak, G.I.(2008). Temporal and spatial mixing characteristics of Seomjin River discharges using a three-dimensional numerical model. Master's Thesis, Chonnam National University (in Korean).
16 Lee, J.C., Kim, J.C. and Park, M.W.(2006) Observations of current in the Northeastern Gwangyang bay. Journal of the Korean Society of Oceanography, 11(4), 136-142.   과학기술학회마을
17 Lee, J.C., Kim, J.C.(2007). Current structure and variability in Gwangyang bay in spring 2006. Journal of the Korean Society of Oceanography, 12(3), 219-224.   과학기술학회마을
18 MacCready, P., Banas, N.S., Hickey, B.M., Dever, E.P. and Liu, Y.(2009). A model study of tide- and wind-induced mixing in the Columbia River Estuary and plume. Cont Shelf Res, 29(1), 278-291.   DOI   ScienceOn
19 Martin, J. and McCutcheon, S.C.(1999). Hydrodynamics and Transport for Water Quality Modeling. Lewis Publishers. 794P
20 Matsumoto, K., Takanezawa, T. and Ooe, M.(2000). Ocean tide models developed by assimilating TOPEX/POSEIDON altimeter data into hydro-dynamical model; A global model and regional model around Japan, Oceanography in Japan, 56, 567-581.   DOI   ScienceOn
21 Ro, Y.J.(2007). Tidal and Sub-tidal Current Characteristics in the Kangjin Bay, South Sea, Korea, Ocean Sci J, 42(1), 19-30.   과학기술학회마을   DOI
22 Pawlowicz, R., Beardsley, B., Lentz, S.(2002). Classical harmonic analysis including error estimates in MATLAB using T_TIDE, Computers and Geosciences, 28, 929-937.   DOI   ScienceOn
23 Park, K., Jung, H.S., Kim, H.S. and Ahn, S,M.(2005). Threedimensional hydrodynamic -eutrophication model (HEM-3D): application to Kwang-Yang Bay, Korea, Marine Environmental Resarch 60, 171-193.   DOI   ScienceOn
24 Pritchard, D.W.(1952). Salinity distribution and circulation in the Chesapeake Bay estuarine system. Journal of Marine Research 15, 33-42.
25 Ro, Y.J., Jun, W.S., Jung, K.Y. and Eom, H.M.(2007). Numerical Modeling of Tide and Tidal Current in the Kangjin Bay, South Sea, Korea, Ocean Sci J, 42(3), 153-163.   과학기술학회마을   DOI
26 Ro, Y.J., Jung, K.Y.(2010). Impact of the Dam Water Discharge on the Circulation System in the Kangjin Bay, South Sea, Korea, Ocean Sci J, 45(1), 7-25.   DOI   ScienceOn
27 Shin, E.J., Lee, S.H., Choi, H.Y.(2002). Numerical model study for structure and distribution of the Keum River plume. Journal of the Korean Society of Oceanography, 7(3), 157-170.   과학기술학회마을
28 Willmott, C.J.(1981). On the Validation of models. Physical Geography, 2(2), 184-194.
29 Wang, Q., Guo, X. and Takeoka, H.(2008). Seasonal variations of the Yellow River plume in the Bohai Sea: A Model study, Journal of Geophysical Research, 113, C08046.
30 Youngsan River Flood Control Office, Annual report of hydrologic investigation in Korea. http://www.yeongsanriver.go.kr/phps/menu/menu.php?S=S01&M=060101000000