Advanced SearchSearch Tips
Variability of the Coastal Current off Uljin in Summer 2006
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Ocean and Polar Research
  • Volume 36, Issue 2,  2014, pp.165-177
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2014.36.2.165
 Title & Authors
Variability of the Coastal Current off Uljin in Summer 2006
Lee, Jae Chul; Chang, Kyung-Il;
  PDF(new window)
In an effort to investigate the structure and variability of the coastal current in the East Sea, a moored ADCP observation was conducted off Uljin from late May to mid-October 2006. Owing to the transition of season from summer to autumn, the features of the current and wind can be divided into two parts. Until mid-August (Part-I), a southward flow is dominant at all depths with a mean alongshore velocity of 4.2~8.9 cm/s but northward winds are not strong enough to reverse the near-surface current. During Part-II, a strong northward current occurs frequently in the upper layer but winds are predominantly southward including two typhoons that have deep-reaching influence. Profile of mean velocity has three layers with a northward velocity embedded at 12~28 m depth. The near-surface current of Part-II significantly coheres with winds at 4-8 day periods with a phase lag of about 12 hours. The modal structure of the current obtained by EOF analysis is: (1) Mode-1, having 83.6% of total variance, represents the current in the same direction at all depths corresponding to the southward North Korean Cold Current (NKCC). (2) Mode-2 (11.7%) reveals a two-layer structure that can be explained by the northward East Korean Warm Current (EKWC) in the upper layer and NKCC in the lower. (3) Mode-3 (2.6%) has three layers, in which the EKWC is reversed near the surface by opposing winds. This mode is particularly similar to the mean velocity profile of Part-II.
East Sea;North Korean Cold Current (NKCC);East Korean Warm Current (EKWC);ADCP;EOF analysis;
 Cited by
Spatio-Temporal Distribution of Particulate Organic Carbon (POC) and Nitrogen (PON) in the Southwestern Area of East Sea, Journal of the Korean Society for Marine Environment & Energy, 2016, 19, 2, 144  crossref(new windwow)
Observations of Bottom Currents in the Korea Strait, Korean Journal of Fisheries and Aquatic Sciences, 2016, 49, 3, 393  crossref(new windwow)
Summertime coastal current reversal opposing offshore forcing and local wind near the middle east coast of Korea: Observation and dynamics, Geophysical Research Letters, 2016, 43, 13, 7097  crossref(new windwow)
Water Mass Distribution and Currents in the Vicinity of the Hupo Bank in Summer 2010, Korean Journal of Fisheries and Aquatic Sciences, 2016, 49, 1, 61  crossref(new windwow)
김영호, 민홍식 (2008) 동해 재분석 자료에 나타난 북한한류의 계절 및 경년변동성. Ocean and Polar Res 30(1):21-31 (Kim YH, Min HS (2008) Seasonal and interannual variability of the North Korean cold current in the East Sea reanalysis data. Ocean and Polar Res 30(1):21-31 (in Korean) ) crossref(new window)

김일남, 이동섭 (2004) 하계 대한해협 저층냉수의 물리.화학적인 특성 및 기원. Ocean and Polar Res 26(4):595-606 (Kim IN, Lee T (2004) Physicochemical properties and the origin of summer bottom cold waters in the Korea Strait. Ocean and Polar Res 26(4):595-606 (in Korean)) crossref(new window)

김철호, 김구 (1983) 한국 동해안에 출현하는 냉수괴의 특성과 기원. J Oceanol Soc Korea 18(1):73-83 (Kim CH, Kim K (1983) Characteristics and origin of the cold water mass along the East Coast of Korea. J Oceanol Soc Korea 18(1):73-83 (in Korean))

나정열, 이성욱, 조규대 (1991) 한반도 근해의 해류 및 해수 특성-한국 동해의 수온의 수직구조. Bull Korean Fish Soc 24(4):215-228 (Na JY, Lee SW, Cho KD (1991) A study on sea water and ocean current in the sea adjacent to Korea Peninsula-The vertical structure of temperatures in the East Sea of Korea. Bull Korean Fish Soc 24(4):215-228 (in Korean))

박경애, 박지은, 최병주, 변도성, 이은일 (2013) 해양관측을 통해 획득한 과학적 지식에 기반한 과학교과서 동해 해류도. 한국해양학회지 바다 18(4):234-265 (Park K-A, Park J-E, Choi B-J, Byun D-S, Lee E-I (2013) An oceanic current map of the East Sea for science textbooks based on scientific knowledge acquired from oceanic measurements. J Oceanol Soc Korea 18(4):234-265 (in Korean))

박청길 (1978) 한국 동해안 냉수괴의 해양화학적 고찰. Bull Korean Fish Soc 11(2):49-54 (Park CK (1978) Chemical oceanographic aspect of the cole water mass in offshore of the east coast of Korea. Bull Korean Fish Soc 11(2):49-54 (in Korean))

An HS, Chung JY (1982) The fluctuation of the thermal front in the southeastern area off Korea. J Oceanol Soc Korea 17(2):33-40 (in Korean)

Hong C-H, Cho K-D (1983) The northern boundary of the Tsushima Current and its fluctuations. J Oceanol Soc Korea 18(1):1-9 (in Korean)

Kawabe M (1982) Branching of the Tsushima current in the Japan Sea, Part I. Data analysis. J Oceanogr Soc Japan 38:95-107 crossref(new window)

Kim K, Legeckis R (1986) Branching of the Tsushima current in 1981-83. Prog Oceanogr 17:265-276 crossref(new window)

Lee D-K, Niiler PP (2005) The energetic surface circulation patterns of the Japan/East Sea. Deep-Sea Res Pt II 52:1547-1563 crossref(new window)

Lee D-K, Niiler PP (2010) Surface circulation in the southwestern Japan/East Sea as observed from drifters and sea surface height. Deep-Sea Res Pt II 57:1222-1232 crossref(new window)

Lee JC (1983) Variations of sea level and sea surface temperature associated with wind-induced upwelling in the southeast coast of Korea in summer. J Oceanol Soc Korea 18(2):6-19 (in Korean)

Lee JC, Na JY (1985) Structure of upwelling off the southeast coast of Korea in summer. J Oceanol Soc Korea 20(3):149-160 (in Korean)

Lee JC, Kim DH, Kim JC (2003) Observations of coastal upwelling at Ulsan in summer 1997. J Korean Soc Oceanogr 38(3):122-134 (in Korean)

Lee T, Kim IN (2003) Chemical imprints of the upwelled waters off the coast of the southern East Sea of Korea. J Korean Soc Oceanogr 38(3):101-110 (in Korean)

Lie H-J, Byun S-K (1985) Summertime southward current along the east coast of Korea. J Oceanogr Soc Korea 20(2):22-27 (in Korean)

Lie H-J, Suk M-S, Kim C-H (1989) Observation of southeastward deep current off the east coast of Korea. J Oceanogr Soc Korea 24:63-68 (in Korean)

Martin S, Kawase M (1998) The southern flux of sea ice in the Tatarsky Strait, Japan Sea and the generation of the Liman Current. J Mar Res 56:141-155 crossref(new window)

Park K-A, Kim K, Cornillon PC, Chung JY (2006) Relationship between satellite-observed cold water along the Primorye coast and sea ice in the East Sea (the Sea of Japan). Geophys Res Lett 33:L10602. doi:10.1029/2005GL025611 crossref(new window)

Yoon J-H (1982) Numerical experiment on the circulation in the Japan Sea, Part I. Formation of the East Korean Warm Current. J Oceanogr Soc Japan 38:43-51 (in Korean) crossref(new window)

Yoon J-H, Kawamura H (2002) The formation and circulation of the intermediate water in the Japan Sea. J Oceanogr 58:197-211 crossref(new window)

Yoon J-H, Kim Y-J (2009) Review on the seasonal variation of the surface circulation in the Japan/East Sea. J Mar Sys 78:226-236 crossref(new window)

Yun J-Y, Magaard L, Kim K, Shin C-W, Kim C, Byun S-K (2004) Spatial and temporal variability of the North Korean Cold Water leading to the near-bottom cold water intrusion in Korea Strait. Prog Oceanogr 60:99-131 (in Korean) crossref(new window)