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http://dx.doi.org/10.7837/kosomes.2014.20.5.474

Temporal and Spatial Variations of Temperature and Salinity around Ganjeol Point in the Southeast Coast of Korea  

Choo, Hyo-Sang (Faculty of Marine Technology, Chonnam National University)
Jang, Duck-Jong (Department of Maritime Police Science, Chonnam National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.20, no.5, 2014 , pp. 474-485 More about this Journal
Abstract
Temporal and spatial variations of temperature and salinity around Ganjeol Point during January, April, August and November 2011 were studied using the data from CTD observations and temperature monitoring buoys deployed at 20 stations in the southeast coast of Korea. Temperature and salinity were nearly homogeneous through the whole depth by mixing of the seawater in spring and winter related to the sea surface cooling. Stratification induced by the river runoff and the bottom cold water was clear in summer. In autumn, sea water had vertical mixing initiated from surface layer and weak stratification at the middle and bottom layers. Low temperature and high salinity emerged throughout the year near Ganjeol Point, which inferred from turbulent mixing and upwelling by its topographical effect. Major periods of 1/4~1.4 day temperature fluctuations were recorded for the most part of the stations. According to the cross spectral density analysis, high coherence and small time lag for temperature fluctuation between layers were shown at Ganjeol Point. However, those features at the northen area of Hoeya river were opposed to Ganjeol Point. From analyses, thermohaline structure and its fluctuation around Ganjeol Point were characterized into those three parts, the south of Ganjeol Point, Ganjeol Point and the north of Ganjeol Point.
Keywords
Ganjeol Point; Thermohaline structure; Temporal and spatial variation; Vertical turbulent mixing; Costal upwelling; Hoeya river runoff;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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