Evaluation of WAVEWATCH III performance with wind input and dissipation source terms using wave buoy measurements for October 2006 along the east Korean coast in the East Sea

Lee, Han Soo

doi:10.1016/j.oceaneng.2015.03.009

Cited by 30 publications

(3 citation statements)

References 43 publications

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“…The index of agreement between two variables is computed by the following formula [55,56]: The root mean square error (RMSE) is used to measure the absolute fitness between the observed and the modelled results:…”

Section: Discussionmentioning

confidence: 99%

Watershed Modelling of the Mindanao River Basin in the Philippines Using the SWAT for Water Resource Management

Guiamel

Lee

2020

Civ Eng J

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This study aims to simulate the watershed of the Mindanao River Basin (MRB) to enhance water resource management for potential hydropower applications to meet the power demand in Mindanao with an average growth of 3.8% annually. The soil and water assessment tool (SWAT) model was used with inputs for geospatial datasets and weather records at four meteorological stations from DOST-PAGASA. To overcome the lack of precipitation data in the MRB, the precipitation records were investigated by comparing the records with the global gridded precipitation datasets from the NCDC-CPC and the GPCC. Then, the SWAT simulated discharges with the three precipitation data were calibrated with river discharge records at three stations in the Nituan, Libungan and Pulangi rivers. Due to limited records for the river discharges, the model results were, then, validated using the proxy basin principle along the same rivers in the Nituan, Libungan, and Pulangi areas. The R2 values from the validation are 0.61, 0.50 and 0.33, respectively, with the DOST-PAGASA precipitation; 0.64, 0.46 and 0.40, respectively, with the NCDC-CPC precipitation; and 0.57, 0.48 and 0.21, respectively, with the GPCC precipitation. The relatively low model performances in Libungan and Pulangi rivers are mainly due to the lack of datasets on the dam and water withdrawal in the MRB. Therefore, this study also addresses the issue of data quality for precipitation and data scarcity for river discharge, dam, and water withdrawal for water resource management in the MRB and show how to overcome the data quality and scarcity.

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Section: Discussionmentioning

confidence: 99%

Watershed Modelling of the Mindanao River Basin in the Philippines Using the SWAT for Water Resource Management

Guiamel

Lee

2020

Civ Eng J

Self Cite

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“…Third-generation wave models, such as WAVEWATCH III, are based on the wave spectrum balance equation and widely applied in both theoretical and practical applications [34]. In general, WWIII simulates the propagation of waves by solving the wave action balance equation:…”

Section: Spectral Balancing Equationmentioning

confidence: 99%

Evolution Wave Condition Using WAVEWATCH III for Island Sheltered Area in the South China Sea

Zou

Liu

Wang

et al. 2023

JMSE

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Wave conditions around islands in the South China Sea (SCS) are of significant interest due to their importance for marine operations and coastal engineering. Understanding and accurately predicting wave characteristics in this region are crucial. In this study, the third-generation wave model WAVEWATCH III is employed to examine wave conditions around islands in the SCS. According to the water depth and significant wave height, the sea state around the island was classified into two categories: typhoon sea state and moderate sea state. Several popular wind input–dissipation source terms (ST2, ST4 and ST6) are used to assess the typhoon sea state and the moderate sea state separately. The results are validated by field wave data. ST4 and ST6 show good performance in significant wave height for moderate sea states, while ST2 is good at the mean wave period. For the typhoon sea state, ST2 gives the best results in significant wave height with larger correlation coefficients and a smaller RMSE. The above results provide valuable insights into the effects of different source terms on the accuracy of wave simulations for different sea states. The spatial distribution of the significant wave heights is also demonstrated with ST2, which may be useful for assessing the wave conditions of marine structures from the large scale of the SCS to the island scale of the Yongle Atoll.

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“…Based on the numerical experiments of Lee (2013b) for evaluating the WW3 performance in terms of wind input and dissipation source terms, the WAM4-type input-dissi- mann et al, 1985). The frequency increment factor (X ω ), the first frequency (ω 0 ), the number of frequencies and the directions for all of the simulations are set as 1.1, 0.04118 Hz, 25 and 36, respectively.…”

Section: Numerical Models and Their Configurationsmentioning

confidence: 99%

Wintertime Extreme Storm Waves in the East Sea: Estimation of Extreme Storm Waves and Wave-Structure Interaction Study in the Fushiki Port, Toyama Bay

Lee¹,

Komaguchi²,

Yamamoto³

et al. 2013

Journal of Korean Society of Coastal and Ocean Engineers

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In February 2008, high storm waves due to a developed atmospheric low pressure system propagating from the west off Hokkaido, Japan, to the south and southwest throughout the East Sea (ES) caused extensive damages along the central coast of Japan and along the east coast of Korea. This study consists of two parts. In the first part, we estimate extreme storm wave characteristics in the Toyama Bay where heavy coastal damages occurred, using a non-hydrostatic meteorological model and a spectral wave model by considering the extreme conditions for two factors for wind wave growth, such as wind intensity and duration. The estimated extreme significant wave height and corresponding wave period were 6.78 m and 18.28 sec, respectively, at the Fushiki Toyama. In the second part, we perform numerical experiments on wave-structure interaction in the Fushiki Port, Toyama Bay, where the long North-Breakwater was heavily damaged by the storm waves in February 2008. The experiments are conducted using a non-linear shallow-water equation model with adaptive mesh refinement (AMR) and wet-dry scheme. The estimated extreme storm waves of 6.78 m and 18.28 sec are used for incident wave profile. The results show that the Fushiki Port would be overtopped and flooded by extreme storm waves if the North-Breakwater does not function properly after being damaged. Also the storm waves would overtop seawalls and sidewalls of the Manyou Pier behind the North-Breakwater. The results also depict that refined meshes by AMR method with wet-dry scheme applied capture the coastline and coastal structure well while keeping the computational load efficiently.

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Evaluation of WAVEWATCH III performance with wind input and dissipation source terms using wave buoy measurements for October 2006 along the east Korean coast in the East Sea

Cited by 30 publications

References 43 publications

Watershed Modelling of the Mindanao River Basin in the Philippines Using the SWAT for Water Resource Management

Watershed Modelling of the Mindanao River Basin in the Philippines Using the SWAT for Water Resource Management

Evolution Wave Condition Using WAVEWATCH III for Island Sheltered Area in the South China Sea

Wintertime Extreme Storm Waves in the East Sea: Estimation of Extreme Storm Waves and Wave-Structure Interaction Study in the Fushiki Port, Toyama Bay

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