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High Frequency Variation of Low Water Temperature due to Arctic Oscillation Around the Western and Southern Coast of Korea During Winter 2017/2018 KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/371937
pp.328-333
During the winter of 2017/2018, significantly low water temperatures were detected around the western and southern coasts of Korea (WSCK). In this period, sea surface temperature (SST) in the Korea Waters was about 2℃ lower than mean temperature. Using the real-time observation system, we analyzed the temporal variation of SST during this period around the western and southern coasts. Low water temperature usually manifested over a period of about 10 ~ 20 days. The daily Arctic oscillation index was also similarly detectable with the variation of SST. From the cross-correlation function, we compared two periodic variations, which were SST around the WSCK and the Arctic oscillation index. The cross correlation coefficients between both variations were approximately 0.3 ~ 0.4. The time lag of the two time series was about 6 to 7 days. Therefore, significanlyt low water temperatures during winter in the Korean coastal areas usually became detectable 6 to 7 days after the negative peak of Arctic oscillation.
1. Introduction
2. Data and Methods
3. Results
3.1 Feature of water temperatures during the winter of2017/2018 around the Korean peninsula
3.2 Temporal variation of SST and Arctic oscillation
3.3 Relationship between SST and Arctic oscillation
4. Summary and Discussion
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