Measuring ocean wave period with satellite altimeters: A simple empirical model
Measuring ocean wave period with satellite altimeters: A simple empirical model
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DOI：
10.1029/2003gl017743
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发表时间：
2003-11
影响因子：
5.2
通讯作者：
C. Gommenginger;M. Srokosz;P. Challenor;P. Cotton
中科院分区：
文献类型：
--
作者：
C. Gommenginger;M. Srokosz;P. Challenor;P. Cotton
提出了一种基于Ku波段雷达高度计后向散射和有效波高反演波周期的简单经验模型。该模型公式是启发式的，并使用Topex高度计和浮标测量的大型数据集进行拟合。本文提出了零向上交叉、平均和峰值波周期的经验模型，并与Davies等人[1997]和Hwang等人[1998]的模型进行了比较。使用独立的验证数据集评估它们的性能，并给出0.8s的检索误差。区域分析表明，波浪周期模式在风海条件下比在膨胀主导条件下表现得更好。
A simple empirical model is proposed to retrieve wave period from Ku‐band radar altimeter backscatter and significant wave height. The model formulation is heuristic, and fitted using a large dataset of collocated Topex altimeter and buoys measurements. Empirical models are proposed for the zero up‐crossing, the mean and the peak wave period, and compared with models by Davies et al. [1997] and Hwang et al. [1998] . Their performance is assessed using an independent validation dataset, and gives a retrieval error of 0.8s. Regional analysis indicates that the wave period models perform better in wind seas than in swell‐dominated conditions.