제주해협 HFR 자료의 유효 범위 산정과 M2 조류 특성 분석 SCOPUS KCI

Title
제주해협 HFR 자료의 유효 범위 산정과 M2 조류 특성 분석
Alternative Title
Estimation of Effective Range of HFR Data and Analysis of M2 Tidal Current Characteristics in the Jeju Strait
Author(s)
Oh, Kyung-Hee; Lee, Seok; Park, Joonseong; Song, Kyu Min; Jung, Dawoon
KIOST Author(s)
Oh, Kyung-Hee(오경희)Lee, Seok(이석)Park, Joonseong(박준성)Song, Kyu Min(송규민)Jung, Dawoon(정다운)
Publication Year
2020-06
Abstract
The effective range of surface current data observed by high-frequency radar (HFR) operated in the northern coastal area of Jeju Island by Korea Institute of Ocean Science and Technology was estimated and the distribution and variability of the M2 tidal current of the Jeju Strait was analyzed. To evaluate the HFR data, the M2 tidal current corrected from 25 hours current data observed by the Korea Hydrographic and Oceanographic Agency (KHOA) was compared with the M2 tidal current in the Jeju Strait analyzed from the surface currents of HFR. The reliability of HFR data was confirmed by analyzing the characteristics of the tide components of these two data sets, and the effective range of HFR data was estimated through temporal and spatial analysis. The observation periods of HFR used in the analysis were from 2012 to 2014, and it was confirmed that there is a difference in the effective range of HFR data according to the observation time.
During the analysis periods, the difference between the M2 current ellipses from the data of KHOA and the HFR was greater in the eastern than in the western part of the Jeju Strait, and represented a high reliability in the western and central parts of the Jeju Strait. The tidal current of the Jeju Strait analyzed using the HFR data revealed a seasonal variability a relatively weak in summer and a strong in winter, about a 17% fluctuations between the summer and winter based on the length of the semi-major axis of tidal ellipse. Appraisals and results of regarding the characteristics and seasonal variability of the M2 tidal current in the Jeju Strait using HFR data have not been previously reported, so the results of this study are considered meaningful.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/20974
DOI
10.4217/OPR.2020.42.2.115
Bibliographic Citation
Ocean and Polar Research, v.42, no.2, pp.115 - 131, 2020
Publisher
한국해양과학기술원
Type
Article
Language
Korean
Publisher
한국해양과학기술원
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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