Seasonal variation of semidiurnal internal tides in the East/Japan Sea SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 20 time in Scopus
Title
Seasonal variation of semidiurnal internal tides in the East/Japan Sea
Author(s)
Jeon, Chanhyung; Park, Jae-Hun; Varlamov, Sergey M.; Yoon, Jong-Hwan; Kim, Young Ho; Seo, Seongbong; Park, Young-Gyu; Min, Hong Sik; Lee, Jae Hak; Kim, Cheol-Ho
KIOST Author(s)
Seo, Seongbong(서성봉)Park, Young Gyu(박영규)Lee, Jae Hak(이재학)
Alternative Author(s)
전찬형; 박재훈; 김영호; 서성봉; 박영규; 민홍식; 이재학; 김철호
Publication Year
2014-05
Abstract
The seasonal variation of semidiurnal internal tides in the East/Japan Sea was investigated using 25 month long output from a real-time ocean forecasting system. The z coordinate eddy-resolving high-resolution numerical model, called the RIAM ocean model, incorporates data assimilation that nudges temperature and salinity fields together with volume transport through the Korea Strait to produce realistic oceanic currents and stratification. In addition to atmospheric forcing, it includes tidal forcing of 16 major components along open boundaries. The model generates energetic semidiurnal internal tides around the northern entrance of the Korea Strait. Energy conversion from barotropic to baroclinic (internal) tides varies seasonally with maxima in September (ranging 0.48-0.52 GW) and minima in March (ranging 0.11-0.16 GW). This seasonal variation is induced by the seasonality in stratification near the southwestern East/Japan Sea. The propagation distance of the internal tides is associated with generation intensity and wavelength. From late summer to early winter, the semidiurnal internal tides travel relatively far from the generation region due to stratification changes; its energy dissipates less as a result of longer wavelengths. Our results suggest that spatiotemporal variation of internal-tide-induced mixing due to the seasonality in the generation, propagation, and dissipation of internal tides should be considered for a more realistic simulation of water masses and circulation in models of the East/Japan Sea.
ISSN
0148-0227
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2824
DOI
10.1002/2014JC009864
Bibliographic Citation
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, v.119, no.5, pp.2843 - 2859, 2014
Publisher
AMER GEOPHYSICAL UNION
Keywords
semidiurnal internal tides; seasonality; generation; propagation and dissipation; East; Japan Sea
Type
Article
Language
English
Document Type
Article
Publisher
AMER GEOPHYSICAL UNION
Related Researcher
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