Treatment of unresolved islands and ice in wind wave models, Ocean Modell
In ocean wave prediction models, unresolved islands are a major source of (local) errors. This paper presents a method based on a technique used in the SWAN model to deal with such islands. The method is tested in the operational global WAVEWATCH III model of the National Centers for Environmental P...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.1823 http://polar.ncep.noaa.gov/mmab/papers/tn221/mmab221.pdf |
| Summary: | In ocean wave prediction models, unresolved islands are a major source of (local) errors. This paper presents a method based on a technique used in the SWAN model to deal with such islands. The method is tested in the operational global WAVEWATCH III model of the National Centers for Environmental Prediction with a one year hindcast, and the results show a local but dramatic impact on model errors. An added benefit of this methodology is the possibility to model the effects of polar ice coverage on waves continuously. A simple model to continuously model ice coverage is suggested. This new ice model shows mixed results in the tests. |
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