Oceanic Response to Typhoon Nari (2007) in the East China Sea SCIE SCOPUS KCI

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Oceanic Response to Typhoon Nari (2007) in the East China Sea
Author(s)
Oh, Kyung-Hee; Lee, Seok; Kang, Sok-Kuh; Song, Kyu-Min
KIOST Author(s)
Oh, Kyung Hee(오경희)Lee, Seok(이석)Song, Kyu Min(송규민)
Publication Year
2017-06
Abstract
The oceanic response to a typhoon in the East China Sea (ECS) was examined using thermal and current structures obtained from ocean surface drifters and a bottom-moored current profiler installed on the right side of the typhoon's track. Typhoon Nari (2007) had strong winds as it passed the central region of the ECS. The thermal structure in the ECS responded to Typhoon Nari (2007) very quickly: the seasonal thermocline abruptly collapsed and the sea surface temperature dropped immediately by about 4 degrees C after the typhoon passed. The strong vertical mixing and surface cooling caused by the typhoon resulted in a change in the thermal structure. Strong near-inertial oscillation occurred immediately after the typhoon passed and lasted for at least 4-5 days, during which a strong vertical current existed in the lower layer. Characteristics of the near-inertial internal oscillation were observed in the middle layer. The clockwise component of the inertial frequency was enhanced in the surface layer and at 63 m depth after the typhoon passed, with these layers almost perfectly out of phase. The vertical shear current was intensified by the interaction of the wind-driven current in the upper layer and the background semi-diurnal tidal current during the arrival of the typhoon, and also by the nearinertial internal oscillation after the typhoon passage. The strong near-inertial internal oscillation persisted without significant interfacial structure after the mixing of the thermocline, which could enhance the vertical mixing over several days.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1223
DOI
10.1007/s12601-017-0007-6
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.52, no.2, pp.167 - 175, 2017
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Subject
INERTIAL OSCILLATIONS; CONTINENTAL-SHELF; WATER
Keywords
typhoon; thermal structure; near-inertial oscillation; internal wave; East China Sea
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

Ocean circulation,Dynamics of ocean surface currents by HF Radar and drifters,Real-time ocean monitoring,해양순환,고주파레이다와 표류부이를 활용한 표층해류관측 및 연구,실시간 해양 모니터링

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