Seasonal and interannual variability of the North Korean Cold Current in the East Sea reanalysis data SCOPUS KCI

Title
Seasonal and interannual variability of the North Korean Cold Current in the East Sea reanalysis data
Author(s)
Kim, Y.H.; Min, H.S.
Publication Year
2008-03
Abstract
Analyzing the results of East Sea Regional Ocean Model using a 3-dimensional variational data assimilation scheme, we investigated spatial and temporal variability of the North Korean Cold Current (NKCC) in the East Sea. The climatological monthly mean transport of the NKCC clearly shows seasonal variation of the NKCC within the range of about 0.35 SV (=10 6 m 3 /s), which increases from its minimum (about 0.45 Sv) through December-January to March, decreases during March and May, and then increases again to the maximum (about 0.8 Sv) in August-September. The volume transport of the NKCC shows interannual variation of the NKCC with the range of about 1.0 Sv that is larger than seasonal variation. The southward current of the NKCC appears often not only in summer but in winter as well. The width of the NKCC is about 35 km near the Korean coast and its core is located under the East Korea Warm Current. The North Korean Cold Water (NKCW), characterized by low salinity and low temperature, is located both under the Tsushima Warm Water and in the western side of the maximum southward current of the NKCC that means the NKCC advects the NKCW southward along the Korean coast. It is revealed that the intermediate low salinity water, formed off the Vladivostok in winter, flows southward to the south of 37°N through 2-3 paths; one path along the Korean coast, another one along 132°E, and the middle path along 130°E. The path of the intermediate low salinity varies with years. The reanalysis fields suggest that the NKCW is advected through the paths along the Korean coast and along 130°E.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/6503
DOI
10.4217/OPR.2008.30.1.021
Bibliographic Citation
Ocean and Polar Research, v.30, no.1, pp.21 - 31, 2008
Publisher
Korea Ocean Research and Development Institute
Keywords
East Sea; East Sea Regional Ocean Model; Inter-annual variation; North Korean Cold Current; Seasonal variation
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse