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Characteristics of global waves based on the third-generation wave model SWAN

机译:基于第三代波浪模型SWAN的整体波浪特征

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Long-term wave data at a global scale are crucial for the studying characteristics of global waves, such as spatial distributions and extreme waves. These characteristics play significant roles in the design, construction, installation and operation activities of marine structures. Because of the limited resolution and coverage of instrumental measurements, the global wave hindcast is widely used. To develop this hindcast, the Simulating WAves Nearshore (SWAN) model is forced with the ERA-Interim wind database from 1979 to 2017 with a resolution of 0.25 degrees in both longitude and latitude. The hourly wave parameters, such as the significant wave height and the mean period, are validated against buoy measurements over the Northwest Pacific Ocean, the Northeast Pacific Ocean and the Northwest Atlantic Ocean. Based on the 39-year simulated results, the spatial distributions of mean and maximal significant wave heights are analysed for all 39 years, every decade, 4 seasons, 12 months and special years; extreme waves are studied at the global scale and at every computational point.
机译:全球尺度的长期海浪数据对于研究全球海浪的特征(例如空间分布和极端海浪)至关重要。这些特征在海事结构的设计,建造,安装和运营活动中起着重要作用。由于仪器测量的分辨率和覆盖范围有限,因此整体波后播被广泛使用。为了开发此后预报,从ERA到1979年至2017年使用ERA-Interim风力数据库对模拟WAves近岸(SWAN)模型进行了强制,其经纬度分辨率均为0.25度。根据西北太平洋,东北太平洋和西北大西洋上的浮标测量值来验证小时波浪参数,例如重要的波浪高度和平均周期。根据39年的模拟结果,分析了所有39年,每十年,4个季节,12个月和特殊年份的平均和最大有效波高的空间分布。在全球范围和每个计算点都研究了极端波浪。

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