Lagrangian Approach for a New Separation Index of the East Korea Warm Current SCIE SCOPUS KCI

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Lagrangian Approach for a New Separation Index of the East Korea Warm Current
Author(s)
Pak, Gyundo; Kim, Young Ho; Park, Young-Gyu
KIOST Author(s)
Pak, Gyundo(박균도)Park, Young Gyu(박영규)
Publication Year
2019-01
Abstract
In this study, a separation index for the East Korea Warm Current (EKWC) is defined by Lagrangian particle tracking using surface geostrophic currents based on satellite-observed absolute dynamic topography. After determining the main stream from the inflow through the western channel of the Korea Strait, the separation index is obtained by averaging the latitude of the main particle trajectories crossing the meridian along 130.5 degrees E. Although the separation index is obtained from coastal velocity, it describes well the surface circulation patterns in the Ulleung Basin. When it is low (i.e., the EKWC separates at low latitude), the flow toward the Japanese coast is the strongest and the EKWC is weak. In the middle phase of the separation index, a large portion of the EKWC meanders and forms the Ulleung Warm Eddy-like feature. When the separation index is high, the EKWC stretches further northward to almost 40 degrees N. Therefore, the separation index could be used as a simple representation of the surface circulation pattern in the East/Japan Sea.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/713
DOI
10.1007/s12601-018-0059-2
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.54, no.1, pp.29 - 38, 2019
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
EAST/JAPAN SEA; CIRCULATION; VARIABILITY
Keywords
East Korea Warm Current; separation index; Lagrangian particle trajectory; East; Japan Sea
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

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