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Characteristic for Long-term Trends of Temperature in the Korean Waters  

Seong, Ki-Tack (Southwest Sea Fisheries Research Institute, NFRDI)
Hwang, Jae-Dong (National Fisheries Research and Development Institute)
Han, In-Seong (National Fisheries Research and Development Institute)
Go, Woo-Jin (National Fisheries Research and Development Institute)
Suh, Young-Sang (National Fisheries Research and Development Institute)
Lee, Jae-Young (Marine Environment Policy Division, The Ministry of Land, Transport and Maritime Affairs)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.16, no.4, 2010 , pp. 353-360 More about this Journal
Abstract
The result of analysis of the observed temperature data by the Serial Oceanography Investigation of National Fisheries Research and Development Institute (NFRDI) during last 41 years from 1969 to 2008 showed that sea surface temperatures in the East, West and South Sea of Korea were clearly increased. In case of 100m depth, temperature was increased in the South Sea of Korea, but it was decreased in the East Sea. Especially, the temperature around the coastal area in the East Sea was significantly decreased by the spatial distribution of long-term change of temperature on 100m depth. It should lead to the decreasing trend in the long-term change of temperature on 100 m depth in the entire East Sea. The increasing trend was clearly larger in wintertime than in summertime by a factor of about 2 It means that the long-term increasing trend of sea surface temperature in the Korean Waters is usually caused by the distinctive increasing trend in wintertime. As the results of the analysis of air temperature and wind speed on the 6stations around the coastal area in the Korean Waters, air temperature was found to be continuously increased, but wind speed to be gradually decreased in winter. The weakness of vertical mixing by decreasing of wind speed caused to make the surface mixed layer shallow. it could be considered that the increasing trend of surface temperature was caused by weak mixing between surface and intermediate layers.
Keywords
Water temperature; Long-term trends of temperature; Surface mixed layer; Air temperature; Wind speed;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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