이어도 해양과학기지 관측 파고와 인공위성 관측 유의파고 차이의 특성 연구 (2004~2016) = Characteristics of the Differences between Significant Wave Height at Ieodo Ocean Research Station and Satellite Altimeter-measured Data over a Decade (2004~2016)

다국어 초록 (Multilingual Abstract)

In order to compare significant wave height (SWH) data from multi-satellites (GFO, Jason-1, Envisat, Jason-2, Cryosat-2, SARAL) and SWH measurements from Ieodo Ocean Research Station (IORS), we constructed a 12 year matchup database between satellite and IORS measurements from December 2004 to May 2016. The satellite SWH showed a root mean square error (RMSE) of about 0.34 m and a positive bias of 0.17 m with respect to the IORS wave height. The satellite data and IORS wave height data did not show any specific seasonal variations or interannual variability, which confirmed the consistency of satellite data. The effect of the wind field on the difference of the SWH data between satellite and IORS was investigated. As a result, a similar result was observed in which a positive biases of about 0.17 m occurred on all satellites. In order to understand the effects of topography and the influence of the construction structures of IORS on the SWH differences, we investigated the directional dependency of differences of wave height, however, no statistically significant characteristics of the differences were revealed. As a result of analyzing the characteristics of the error as a function of the distance between the satellite and the IORS, the biases are almost constant about 0.14 m regardless of the distance. By contrast, the amplitude of the SWH differences, the maximum value minus the minimum value at a given distance range, was found to increase linearly as the distance was increased. On the other hand, as a result of the accuracy evaluation of the satellite SWH from the Donghae marine meteorological buoy of Korea Meteorological Administration, the satellite SWH presented a relatively small RMSE of about 0.27 m and no specific characteristics of bias such as the validation results at IORS. In this paper, we propose a conversion formula to correct the significant wave data of IORS with the satellite SWH data. In addition, this study emphasizes that the reliability of data should be prioritized to be extensively utilized and presents specific methods and strategies in order to upgrade the IORS as an international world-wide marine observation site.

참고문헌 (Reference)

1 유승협, "지역 파랑 예측시스템과 해양기상 부이의 파랑 특성 비교 연구" 한국해양공학회 24 (24): 7-15, 2010

2 김태림, "이어도 해양과학기지 인근해역에서의 고도계 파고 자료 검증" 대한원격탐사학회 28 (28): 95-100, 2012

3 박영규, "이어도 종합해양과학기지에서 관측된 수온과염분 자료의 특징" 한국해양환경·에너지학회 9 (9): 225-234, 2006

4 문일주, "이어도 종합해양과학기지를 활용한 태풍연구: Part I. 태풍관측의 중요성 및 현황" 한국기상학회 20 (20): 247-260, 2010

5 오상호, "우리나라 동해안 너울성 고파의 발생원인 분석" 한국해안,해양공학회 22 (22): 101-111, 2010

6 MIROS, "Waveradar system user manual" 2011

7 Magnusson, A.K., "Wave model results with wind input from a course-and a fine-meshed atmospheric model, compared with wave measurements" 165-180, 1987

8 Naoto Ebuchi, "Validation of wind speeds and significant wave heights observed by the TOPEX altimeter around Japan" Springer Nature 50 (50): 479-487, 1994

9 박경애, "Validation of Significant Wave Height from Satellite Altimeter in the Seas around Korea and Error Characteristics" 대한원격탐사학회 29 (29): 631-644, 2013

10 Tom H. Durrant, "Validation of Jason-1 and Envisat remotely sensed wave heights" American Meteorological Society 26 (26): 123-134, 2009

11 W K Melville, "The Role of Surface-Wave Breaking in Air-Sea Interaction" Annual Reviews 28 (28): 279-321, 1996

12 R. M. Clancy, "The Fleet Numerical Oceanography Center Global Spectral Ocean Wave Model" American Meteorological Society 67 (67): 498-512, 1986

13 Holland, P.W., "Robust regression using iteratively reweighted least-squares" 6 : 813-827, 1977

14 Dianne P. O’Leary, "Robust Regression Computation Using Iteratively Reweighted Least Squares" Society for Industrial & Applied Mathematics (SIAM) 11 (11): 466-480, 1990

15 Taylor, P.K., "On the accuracy of wind and wave measurements from buoys" 15-, 2002

16 National Data Buoy Center, "NOAA National Data Buoy Center Technical Document 03-02" 46-, 2003

17 Dobson, F., "Miros system evaluation during storm wind study II" 98-109, 1999

18 Hye-Jin Woo, "Long-term trend of satellite-observed significant wave height and impact on ecosystem in the East/Japan Sea" Elsevier BV 143 : 1-14, 2017

19 PIERRE QUEFFEULOU, "Long-Term Validation of Wave Height Measurements from Altimeters" Informa UK Limited 27 (27): 495-510, 2004

20 Magnusson, A.K., "Korgstad, COST Action 714" Office for Official Publications of the European Communities 138-141, 2005

21 S. Zieger, "Joint Calibration of Multiplatform Altimeter Measurements of Wind Speed and Wave Height over the Past 20 Years" American Meteorological Society 26 (26): 2549-2564, 2009

22 Saleh Abdalla, "Jason-2 OGDR Wind and Wave Products: Monitoring, Validation and Assimilation" Informa UK Limited 33 (33): 239-255, 2010

23 I. R. Young, "Investigation of trends in extreme value wave height and wind speed" American Geophysical Union (AGU) 117 (117): 2012

24 J. F. R. Gower, "Intercalibration of wave and wind data from TOPEX/POSEIDON and moored buoys off the west coast of Canada" American Geophysical Union (AGU) 101 (101): 3817-3829, 1996

25 Intergovernmental Oceanographic Commission, "IOC Manual and Guides 26" 437-, 1993

26 Intergovernmental Oceanographic Commission, "IOC Manual and Guides 22" 128-, 1990

27 Cristina Izaguirre, "Global extreme wave height variability based on satellite data" American Geophysical Union (AGU) 38 (38): 2011

28 Queffeulou, P., "Global altimeter SWH data set - September 2016, Technical Report" IFREMER 10-, 2016

29 I. R. Young, "Global Trends in Wind Speed and Wave Height" American Association for the Advancement of Science (AAAS) 332 (332): 451-455, 2011

30 Queffeulou, P., "Cryosat-2 IGDR SWH assessment update, Technical Report" IFREMER 12-, 2013

31 K. Tanaka, "Atmospheric pressure-wave bands around a cold front resulted in a meteotsunami in the East China Sea in February 2009" Copernicus GmbH 10 (10): 2599-2610, 2010

32 Hector Hito Sepulveda, "Assessment of SARAL/AltiKa Wave Height Measurements Relative to Buoy, Jason-2, and Cryosat-2 Data" Informa UK Limited 38 (38): 449-465, 2015

33 KMA, "Analysis of wind and wave height using data observed at the complex of oceanic meteorological observation in the Yellow Sea. KMA research report" 89-, 2005

34 Peter A. E. M. Janssen, "An operational coupled hybrid wave prediction model" American Geophysical Union (AGU) 89 (89): 3635-, 1984

35 Paul A. Hwang, "A statistical comparison of wind speed, wave height, and wave period derived from satellite altimeters and ocean buoys in the Gulf of Mexico region" American Geophysical Union (AGU) 103 (103): 10451-10468, 1998

36 Chen, G., "A global view of swell and wind sea climate in the ocean by satellite altimeter and scatterometer" 19 : 1849-1859, 2002