Interannual variability in surface circulation of the East/Japan Sea: Threedimensional numerical model simulations

Title
Interannual variability in surface circulation of the East/Japan Sea: Threedimensional numerical model simulations
Author(s)
정희석; 최병주; 장찬주
KIOST Author(s)
Jung, Heeseok(정희석)Jang, Chan Joo(장찬주)
Publication Year
2017-05-17
Abstract
In addition to predominant seasonal variability, the East/Japan Sea shows relatively large interannual variability in the surface circulation. However, possible mechanisms for the interannual variability have been poorly understood. In this study, we aimed to identity factors contributing to interannual variability using a three-dimensional high-resolution (3 km in horizontal) numerical model with the most plausible three factors: Korea Strait transport, atmospheric forcing and internal variation in East/Japan Sea. When internal variability was only considered, the Yamato and Ulleung Basins revealed considerable interannual variability. But, interannual variability was overestimated in the northern basin. Thisoverestimation in the northern basin was slightly reduced when interannual variability in the Korea Strait transport was added. The internal variation in the Korea Strait transport further contributes to strengthening of interannual variability in the southern basin. Although the mechanisms controlling the interannual variability in the surface circulation seem to depend on region by region, our findings suggest that the internal variability is the greatest contribution to internal variability in the surface circulation in the East/Japan Seas. study, we aimed to identity factors contributing to interannual variability using a three-dimensional high-resolution (3 km in horizontal) numerical model with the most plausible three factors: Korea Strait transport, atmospheric forcing and internal variation in East/Japan Sea. When internal variability was only considered, the Yamato and Ulleung Basins revealed considerable interannual variability. But, interannual variability was overestimated in the northern basin. Thisoverestimation in the northern basin was slightly reduced when interannual variability in the Korea Strait transport was added. The internal variation in the Korea Strait transport further contributes to strengthening of interannual variability in the southern basin. Although the mechanisms controlling the interannual variability in the surface circulation seem to depend on region by region, our findings suggest that the internal variability is the greatest contribution to internal variability in the surface circulation in the East/Japan Seas.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23978
Bibliographic Citation
1 st Workshop on the Trend of NorthWest Pacific Climate Change, pp.10, 2017
Publisher
FIO/JORC/KIOST
Type
Conference
Language
English
Publisher
FIO/JORC/KIOST
Related Researcher
Research Interests

Regional climate model development,Ecosystem model,Ocean mid-term prediction,지역기후모형 개발,생태계모형,중기 해양환경 예측

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