대한해협 저층냉수 유입에 대한 조석효과

Title
대한해협 저층냉수 유입에 대한 조석효과
Alternative Title
Tidal effects on bottom cold water intrusion from the southwestern East Sea into the Korea Strait
Author(s)
박재훈; 김예솔; 이현정; 이호진; 박영규
KIOST Author(s)
Park, Young Gyu(박영규)
Alternative Author(s)
박영규
Publication Year
2012-12-03
Abstract
The bottom cold waters have often been observed near the northeastern mouth of the Korea Strait southwestern East Sea (Japan Sea) mainly during the summer time. Hydrographic sections exhibit a dome-like isothermal feature near the edge of the continental shelf-slope, which seems to be associated with the intrusion of bottom cold water from the southwestern East Sea into the Korea Strait. Previous studies suggest possible causes of the bottom cold water intrusion, yet its mechanism is not clear. In this study, we investigate tidal effects on the bottom cold water intrusion using numerical simulations, which can include both wind-driven oceanic currents and tides simultaneously. We use a fine-resolution regional ocean model with 1/108-degree grids and s-coordinated 20 layers. Four different cases of numerical simulations are conducted with 1) no tidal forcing, 2) M2 tides only, 3) K1 tides only, and 4) all four major tides (M2, S2, K1 and O1). Our simulation results demonstrate that tides play an important role in generating the intrusion of bottom cold water in this region by both near-bottom ocean mixing and internal tidal residual currents. More details are under investigation and will be presented in the meeting.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27264
Bibliographic Citation
AGU Fall Meeting 2012, pp.1, 2012
Publisher
American Geophysical Union
Type
Conference
Language
English
Publisher
American Geophysical Union
Related Researcher
Research Interests

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

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