Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ

MAO Kefeng; CHEN Xi; LI Yan; ZHANG Ren

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MAO Kefeng, CHEN Xi, LI Yan, ZHANG Ren. Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ[J]. Haiyang Xuebao, 2012, 34(5): 11-19.

Citation:

MAO Kefeng, CHEN Xi, LI Yan, ZHANG Ren. Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ[J]. Haiyang Xuebao, 2012, 34(5): 11-19.

MAO Kefeng, CHEN Xi, LI Yan, ZHANG Ren. Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ[J]. Haiyang Xuebao, 2012, 34(5): 11-19.

Citation:

MAO Kefeng, CHEN Xi, LI Yan, ZHANG Ren. Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ[J]. Haiyang Xuebao, 2012, 34(5): 11-19.

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Validation and comparison of sub-grid islands effect in ocean wave model of WAVEWATCH-Ⅲ

Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101, China

Received Date: 2011-07-22
Rev Recd Date: 2012-03-12

Abstract

Abstract

In order to improve the sub-grid effect,a method for automatically computing the energy flux transparency in WAVEWATCH-Ⅲ model has been established basing on the optimization of computing grid by using depth and high resolution coastlines.The results with the improving sub-grid effect are compared with that directly increasing grid resolution to identify out islands.It shows that the improving sub-grid effect could adequately describe the effect of multi-islands and complex terrain on wave spreading by restraining low-frequency wave energy and the simulation results are well improved.By improving sub-grid effect in low resolution grid,the calculation efficiency is highly increased and the accuracy of significant wave height is equivalent with the results using high resolution grid.
- WAVEWATCH-Ⅲ model,
- sub-grid effect,
- the energy flux transparency

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References(11)

References

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