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基于NDBC浮标观测数据,利用波龄与无因次波高的关系构建新的平均波周期参数化方案。将该方案集成在SWAN模式中,利用模式得到的有效波高、海面风速,计算新的平均波周期。将计算出的新平均波周期值、SWAN模式原周期计算方案得到的平均波周期值与浮标观测值进行对比,分析平均波周期的相对误差。结果表明,SWAN模式原周期计算方案模拟的周期值存在偏小的现象,而新的平均波周期参数化方案计算结果更接近浮标观测值,说明本文新构建的平均波周期参数化方案能够较好的应用在SWAN模式中开展东海海域平均波周期的数值模拟。
Based on NDBC buoy observation data, a new mean wave period parameterization scheme is constructed by using the relationship between wave age and dimensionless wave height. The scheme is integrated into the SWAN model, and the effective wave height obtained from the model and the sea surface wind speed are used to calculate the new average wave period. The new mean wave period value calculated and the average wave period value obtained from the SWAN original period calculation scheme are compared with the buoy observation values to analyze the relative error of the average wave period. The results show that there is a small period value in the SWAN model original period calculation scheme simulation, and the new average period parameterization scheme is closer to the buoy observations, indicating that the new wave period parameterization scheme constructed in this paper can be better The application of SWAN model in the East China Sea to carry out the average wave period numerical simulation.