平均波周期参数化方案及在SWAN模式中的应用

发布时间：2018-05-13 05:02

本文选题：海浪模式 + 周期参数化　；参考：《海洋湖沼通报》2017年01期

【摘要】：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。
[Abstract]:Based on the observation data of NDBC buoy, a new parameterization scheme of mean wave period is constructed by using the relationship between wave age and dimensionless wave height. The scheme is integrated into the SWAN model and the new average wave period is calculated by using the effective wave height and the sea surface wind speed obtained by the model. The average wave period obtained by the new Swan model is compared with the buoy observation, and the relative error of the average wave period is analyzed. The results show that the periodic value of Swan model is smaller than that of Swan model, and the calculated results of the new average wave period parameterization scheme are closer to the observed values of buoys. The results show that the new parameterization scheme can be applied to the numerical simulation of the mean wave period in the East China Sea in the SWAN model.
【作者单位】：河海大学海岸灾害及防护教育部重点实验室;解放军理工大学气象海洋学院;河海大学环境海洋实验室;
【基金】：国家自然科学基金(41676014)资助
【分类号】：P731.22

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