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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.8
- 수록면
- 273 - 286 (14page)
이용수
초록· 키워드
오류제보하기
In recent years, as human casualties and property damage caused by hazardous waves have increased in the East Sea, precise wave prediction skills have become necessary. In this study, the Simulating WAves Nearshore (SWAN) third-generation numerical wave model was calibrated and optimized to enhance the accuracy of winter storm wave prediction in the East Sea. We used Source Term 6 (ST6) and physical observations from a large-scale experiment conducted in Australia and compared its results to Komen’s formula, a default in SWAN. As input wind data, we used Korean Meteorological Agency"s (KMA’s) operational meteorological model called Regional Data Assimilation and Prediction System (RDAPS), the European Centre for Medium Range Weather Forecasts’ newest 5th generation re-analysis data (ERA5), and Japanese Meteorological Agency"s (JMA’s) meso-scale forecasting data. We analyzed the accuracy of each model’s results by comparing them to observation data. For quantitative analysis and assessment, the observed wave data for 6 locations from KMA and Korea Hydrographic and Oceanographic Agency (KHOA) were used, and statistical analysis was conducted to assess model accuracy. As a result, ST6 models had a smaller root mean square error and higher correlation coefficient than the default model in significant wave height prediction. However, for peak wave period simulation, the results were incoherent among each model and location. In simulations with different wind data, the simulation using ERA5 for input wind datashowed the most accurate results overall but underestimated the wave height in predicting high wave events compared to the simulation using RDAPS and JMA meso-scale model. In addition, it showed that the spatial resolution of wind plays a more significant role in predicting high wave events. Nevertheless, the numerical model optimized in this study highlighted some limitations in predicting high waves that rise rapidly in time caused by meteorological events. This suggests that further research is necessary to enhance the accuracy of wave prediction in various climate conditions, such as extreme weather.
목차
ABSTRACT
1. Introduction
2. Numerical Model
3. Numerical Wave Model Scenarios and Model Parameters
4. Validation and Analysis of Numerical Model Results
5. Conclusions
References
참고문헌 (23)
참고문헌 신청
Booij, N., Ris, R.C., & Holthuijsen, L.H. (1999). A Third-generation Wave Model for Coastal Regions: 1. Model Description and Validation. Journal of Geophysical Research: Oceans, 104(C4), 7649–7666. https://doi.org/10.1029/98JC02622
Caires, S., Kim, J., & Groeneweg, J. (2018). Korean East Coast Wave Predictions by Means of Ensemble Kalman Filter Data Assimilation. Ocean Dynamics, 68, 1571–1592. https://doi.org/10.1007/s10236-018-1214-0
Chun, H., Kang, T.-S., Ahn, K., Jeong, W.M., Kim, T.-R., & Lee, D.H. (2014). A Study on the Statistical Characteristics and Numerical Hindcasts of Storm Waves in East Sea. Journal of Korean Society of Coastal and Ocean Engineers, 26(2), 81–95. https://doi.org/10.9765/kscoe.2014.26.2.81
Do, K., & Kim, J. (2018). A Study on the Predictability of Eastern Winter Storm Waves Using Operational Wind Forecasts of KMA. Journal of Korean Society of Coastal and Ocean Engineers, 30(5), 223–233. https://doi.org/10.9765/kscoe.2018.30.5.223
Eum, H.-S., Kang, T.-S., Nam, S.-Y., & Jeong, W.-M. (2016). Wave Modeling Considering Water Level Changes and Currents Effects. Journal of Korean Society of Coastal and Ocean Engineers, 28(6), 383–396. https://doi.org/10.9765/kscoe.2016.28.6.383
Caires, S., Kim, J., & Groeneweg, J. (2018). Korean East Coast Wave Predictions by Means of Ensemble Kalman Filter Data Assimilation. Ocean Dynamics, 68, 1571–1592. https://doi.org/10.1007/s10236-018-1214-0
Chun, H., Kang, T.-S., Ahn, K., Jeong, W.M., Kim, T.-R., & Lee, D.H. (2014). A Study on the Statistical Characteristics and Numerical Hindcasts of Storm Waves in East Sea. Journal of Korean Society of Coastal and Ocean Engineers, 26(2), 81–95. https://doi.org/10.9765/kscoe.2014.26.2.81
Do, K., & Kim, J. (2018). A Study on the Predictability of Eastern Winter Storm Waves Using Operational Wind Forecasts of KMA. Journal of Korean Society of Coastal and Ocean Engineers, 30(5), 223–233. https://doi.org/10.9765/kscoe.2018.30.5.223
Eum, H.-S., Kang, T.-S., Nam, S.-Y., & Jeong, W.-M. (2016). Wave Modeling Considering Water Level Changes and Currents Effects. Journal of Korean Society of Coastal and Ocean Engineers, 28(6), 383–396. https://doi.org/10.9765/kscoe.2016.28.6.383
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