제주해협 HFR 자료의 유효 범위 산정과 M2 조류 특성 분석
Estimation of Effective Range of HFR Data and Analysis of M2 Tidal Current Characteristics in the Jeju Strait
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초록
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.
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.
참고문헌 (16)
- 김창수, "새만금 4호 방조제 완성 전,후 HF 레이다로 관측된 표층 M2 조류의 변화", 바다, 11(2), pp.37~48 (2006), 한국해양학회
- 김창수, "새만금 연안역에서 HF radar에 의해 관측된 조하주기표층해류의 변화", 바다, 13(1), pp.56~66 (2008), 한국해양학회
- 송규민, "고주파 해수면 관측레이더의 국내 설치 및 운용방안 : 하드웨어 부문", Ocean and Polar Research, 34(4), pp.453~462 (2012), 한국해양과학기술원[DOI]
- 이상호, "금강하구 연안역에서 HF radar로 측정한 유속의 정확도", 바다, 13(1), pp.42~55 (2008), 한국해양학회
- 최병호, "한국 남서해역의 조사 산정", 한국해안·해양공학회논문집, 7(2), pp.163~169 (1995)
- 최영진, "HF-Radar 관측자료의 단주기 변동성 분석 및 정확도 분류", 한국해안·해양공학회논문집, 28(6), pp.319~331 (2016), 한국해안,해양공학회
- POL, "PSMSL tidal analysis software kit 2000 (Task-2000)", Bell C, 1999, pp.21~
- Chapman RD, "On the accuracy of HFR surface current measurements: Inter-comparisons with shipbased sensors", J Geophys Res, 102(C8), pp.18737~18748 (1997)
- Choi J-W, "Accuracy improvement of particle tracking model using 2-D current measurement(HF-radar)data", J Coastal Res, 91, pp.251~255 (2019)
- Crombie DD, "Doppler spectrum of sea echo at 13. 56Mc", s, 1955, pp.175, 681~682
- Harlan J, "The integrated ocean observing system high-frequency radar network : Status and local, regional, and national applications", Mar Technol Soc J, 44(6), pp.122~132 (2010)
- Kang SK, "Two-layer tidal modeling of the Yellow and East China Seas with application to seasonal variability of the M2 tide", J Geophys Res, 107(C3), pp.1~19 (2002)
- 이석, "Vertical Structure of the M_2 Tidal Current in the Yellow Sea", Ocean Science Journal, 46(2), pp.73~84 (2011), 한국해양과학기술원
- 이석, "M2 Tidal Current Estimation from One-day Observation Data off the Western and Southern Coasts of Korea", Ocean Science Journal, 54(1), pp.39~50 (2019), 한국해양과학기술원[DOI]
- "Seasonde information" (2009)[URL]
- Son Y-T, "Surface current variability in the Keum River Esturay(South Korea)during summer 2002 as observed by high-frequency radar and coastal monitoring buoy", Cont Shelf Res, 27, pp.43~63 (2007)