Second-mode semidiurnal internal tides on the continental slope of the southwestern East/Japan Sea SCIE SCOPUS

Cited 0 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Second-mode semidiurnal internal tides on the continental slope of the southwestern East/Japan Sea
Author(s)
Lee, Hee-Yeol; Park, Jae-Hun; Jeon, Chanhyung; Seo, Seongbong; Kim, Dong Guk; Park, Young-Gyu; Min, Hong Sik; Kim, Sug-Dae
KIOST Author(s)
Kim, Dong Guk(김동국)Park, Young Gyu(박영규)
Publication Year
2016-03
Abstract
Energetic second-mode semidiurnal internal tides with a three-layer-like structure were observed from time series of 26-hour-long 2 hourly velocity profiles collected on the continental shelf-slope of the southwestern East/Japan Sea during a spring tidal period in early November 2013. Modal-fitted baroclinic semidiurnal signals using a least squared method demonstrate that the kinetic energy of second-mode semidiurnal internal tides is comparable to the first-mode ones. In order to understand physical processes affecting the enhanced generation of the second-mode internal tides and their spatio-temporal variations, we utilize 30-month long numerical simulation outputs from a real-time ocean forecasting system of the East/Japan Sea. The model includes realistic oceanic circulation and stratification together with tides of 16 major components. The analysis results reveal that the most energetic second mode semidiurnal internal tides generate during fall months when the main therniocline was located near the mid depth (100-150 m) over the continental shelf-slope. It appears that the deepened mixed layer together with the enhanced mid-depth stratification induced by the increased flow through the western channel of the Korea Strait provide a second-mode favorable stratification condition near the internal tide generation region. This study has an implication that the seasonally-varying second-mode semidiurnal internal tides would have an impact on the tide induced ocean mixing in the southwestern East/Japan Sea.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2232
DOI
10.2112/SI75-278.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.1387 - 1391, 2016
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Keywords
Second-mode semidiurnal internal tide; stratification; seasonal variation
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
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