Estimating Maximum Significant Wave Height and Dominant Wave Period inside Tropical Cyclones
Estimating Maximum Significant Wave Height and Dominant Wave Period inside Tropical Cyclones
复制标题
估计热带气旋内的最大有效波高和主波周期
DOI：
10.1175/waf-d-17-0186.1
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发表时间：
2018
影响因子：
2.9
通讯作者：
E. Walsh
中科院分区：
文献类型：
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作者：
P. Hwang;E. Walsh
利用热带气旋内部风浪增长的获取和持续时间有限的性质，提出了一种估计热带气旋风场产生的表面波的最大有效波高和主波周期的算法。最大有效波高和主波周期的计算结果进一步用最大风速的简单幂函数逼近。幂函数的指数几乎是恒定的，比例系数可以用最大风速半径的二次多项式函数来逼近。预测的最大值与在6次飓风的11次飓风侦察和研究任务期间同时进行的风浪测量结果非常吻合。
Making use of the fetch- and duration-limited nature of wind-wave growth inside tropical cyclones, an algorithm is developed to estimate the maximum significant wave height and dominant wave period of surface waves generated by tropical cyclone wind fields. The results of the maximum significant wave height and dominant wave period are further approximated by simple power functions of the maximum wind speed. The exponents of the power functions are almost constant, and the proportionality coefficients can be approximated by second-order polynomial functions of the radius of maximum wind speed (RMW). The predicted maximum values agree well with results derived from simultaneous wind and wave measurements obtained during 11 hurricane reconnaissance and research missions in six hurricanes.
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