Application of different wind field models and wave boundary layer model to typhoon waves numerical simulation in WAVEWATCH III model
Application of different wind field models and wave boundary layer model to typhoon waves numerical simulation in WAVEWATCH III model
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不同风场模型和波浪边界层模型在WAVEWATCH III模型台风波数值模拟中的应用
DOI：
10.1080/16000870.2019.1657552
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发表时间：
2019-01
期刊：
影响因子：
--
通讯作者：
Li Funing
中科院分区：
文献类型：
--
作者：
Qiao Wenli;Song Jinbao;He hailun;Li Funing
摘要以2014年强台风“凯美吉”（Kalmaegi）为例，利用多平台观测资料，在WAVEWATCH III模式（WW3）中同时考察了不同风场模式和波浪边界层模式（WBLM）的应用能力。首先，基于两个现场浮标的测量和模式结果之间的比较，一个更好的质量的风强迫从WRF的输出脱颖而出稍微相比，其他两个构建的风场在“期间TY”的时间段。其次，对WBLM与ST2软件中的原参数化公式采用不同阻力系数方案的模拟结果进行了比较。将WBLM方法嵌入到ST2风输入源函数中，得到的强风条件下的拖曳系数具有良好的性能，并通过多组实测数据进行了验证。结果表明，在高海况区，WBLM模拟的有效波高（）较ST2方案的弱，这与海气界面动量交换量对台风波的发展起着重要作用的一般认识相一致。受限于大风条件下采样频率较低的配置测量，在WW3中使用WBLM对台风波模拟的改进的有效性需要在未来的工作中进行更多的验证。
Abstract Taking severe typhoon Kalmaegi (2014) as an example, which is chosen due to its good availability of observations from mulitplatforms, the application ability of different wind field models and wave boundary layer model (WBLM) are investigated simultaneously in WAVEWATCH III model (WW3). First, based on the comparisons between measurements of two in situ buoys and model results, a better-quality wind forcing from WRF’s output stands out slightly compared with other two constructed wind fields during the time segment of “During-TY”. Second, the comparisons of simulated results by using different drag coefficient schemes between WBLM and the original parameterisation formula in ST2 package are further implemented. The good performance of drag coefficient from WBLM under high-wind conditions, which is embedded into ST2 wind-input source function, is also verified by several data set of field observations. As a result, on the basis of the observations from buoy-based and radar altimeter measurements (RAs), the values of significant wave height () from simulation with WBLM are weaker at high sea state areas () compared with that from the ST2 scheme, which coincide with the general knowledge that the amount of momentum exchange at the air-sea interface plays a vital role in the development of typhoon waves. Limited by less frequently sampled collocated measurements under high-wind conditions, the effectiveness of improvement for typhoon waves simulation using WBLM in WW3 requires more validation cases in future work.
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DOI：
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期刊：
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