An Efficient Method for Simulating Typhoon Waves Based on a Modified Holland Vortex Model

An Efficient Method for Simulating Typhoon Waves Based on a Modified Holland Vortex Model
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基于修正荷兰涡模型的台风波高效模拟方法

DOI:
10.3390/jmse8030177
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发表时间:
2020-03
影响因子:
2.9
通讯作者:
Shaoyang Luo
Shaoyang Luo
中科院分区:
地球科学3区
文献类型:
--
作者:
Lvqing Wang;Zhaozi Zhang;Bingchen Liang;Dongyoung Lee;Shaoyang Luo

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结合WAVEWATCH III(WW 3)模式和修改后的荷兰涡模式的开发和研究在目前的工作。对Holland 2010模式进行了两点改进:第一是引入了一个新的尺度参数bs,该参数包含了最大风速vms和台风前进速度vt的信息;第二是引入了一个非对称台风结构。为了将由修改的Holland模型重建的风速从1分钟平均风输入转换为10分钟平均风输入以迫使WW 3模型,根据实际测试情况拟合阵风因子(gf)。通过对波浪浮标资料的验证,证明了通过阵风因子将两种模型结合起来对台风波浪的估计是稳健的。所提出的方法可以有效地模拟台风浪的基础上容易获得的数据源。
A combination of the WAVEWATCH III (WW3) model and a modified Holland vortex model is developed and studied in the present work. The Holland 2010 model is modified with two improvements: the first is a new scaling parameter, bs, that is formulated with information about the maximum wind speed (vms) and the typhoon’s forward movement velocity (vt); the second is the introduction of an asymmetric typhoon structure. In order to convert the wind speed, as reconstructed by the modified Holland model, from 1-min averaged wind inputs into 10-min averaged wind inputs to force the WW3 model, a gust factor (gf) is fitted in accordance with practical test cases. Validation against wave buoy data proves that the combination of the two models through the gust factor is robust for the estimation of typhoon waves. The proposed method can simulate typhoon waves efficiently based on easily accessible data sources.
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