Wind Speed Scaling in Fully Developed Seas
Wind Speed Scaling in Fully Developed Seas
复制标题
完全发育的海洋中的风速缩放
DOI：
--
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
V. Cardone
中科院分区：
文献类型：
--
作者：
D. Resio;V. Swail;R. Jensen;V. Cardone
摘要最近对所有几代数值波浪模型的测试表明，这些模型对极端波高的预测严重不足。这种行为与尤因和莱恩的发现一致，即完全发展的波谱不具有皮尔森和莫斯科维茨假设的普遍自相似形式。本文假定，这是不合适的尺度充分发展的海洋风从一个固定的水平以上的平均海面。相反，风应该从动态缩放的高度，是线性相关的光谱峰值的波长。这种替代缩放与摩擦速度缩放是一致的，并产生预测波高和周期，更好地与尤因和莱恩收集的数据，并出现解释的一些差异，从以前的研究结果与数值波模型在大风暴。
Abstract Recent tests of all generations of numerical wave models indicate that extreme wave heights are significantly underpredicted by these models. This behavior is consistent with the finding by Ewing and Laing that fully developed wave spectra do not have the universal self-similar form postulated by Pierson and Moskowitz. This paper postulates that it is inappropriate to scale fully developed seas by winds taken from a fixed level above the mean sea surface. Instead, winds should be taken from a dynamically scaled height that is linearly related to the wavelength of the spectral peak. This alternative scaling is consistent with friction-velocity scaling and yields predicted wave heights and periods that are in better agreement with the data collected by Ewing and Laing and appear to explain some of the discrepencies in results from previous studies with numerical wave models in large storms.