KOREASCHOLAR

High Frequency Variation of Low Water Temperature due to Arctic Oscillation Around the Western and Southern Coast of Korea During Winter 2017/2018

In-Seong Han, Joon-Soo Lee, Ju-Yeon Kim, Ji-Yeon Hong
  • LanguageENG
  • URLhttp://db.koreascholar.com/Article/Detail/371937
해양환경안전학회지
Vol.25 No.3 (2019.05)
pp.328-333
해양환경안전학회 (The Korean Society Of Marine Environment & Safety)
Abstract

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.

Table Content
Abstract
 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
 References
Author
  • Ji-Yeon Hong(Ocean Climate and Ecology Research Division, National Institute of Fisheries Science)
  • Ju-Yeon Kim(Ocean Climate and Ecology Research Division, National Institute of Fisheries Science)
  • Joon-Soo Lee(Ocean Climate and Ecology Research Division, National Institute of Fisheries Science)
  • In-Seong Han(Ocean Climate and Ecology Research Division, National Institute of Fisheries Science) Corresponding Author