As part of the Copernicus Marine Service, WAVERYS is the multi-year wave reanalysis that provides global wave data with a fine grid resolution of 1/5°. This wave reanalysis covers the period 1993–2019 and disseminates 3-h integrated wave parameters describing the sea state at the ocean surface. The wave model used is the version 4 of the model MFWAM, which is driven by sea ice fraction and wind provided by the atmospheric reanalysis ERA5. The WAVERYS includes the assimilation of altimeter wave data and directional wave spectra provided by Sentinel-1. The wave reanalysis includes also wave-current interactions by using 3-h surface current forcing provided by the ocean reanalysis GLORYS. This paper highlights the assessment of wave parameters provided by the WAVERYS. The validation has been performed with independent altimeter significant wave heights and buoy wave data. The results show the good accuracy of scatter index of SWH (significant wave height) which is 8.7% in comparison with HY-2A altimeter. Moreover, we point out that scatter index of SWH from the WAVERYS is improved by about 9% with respect to the ERA5 wave dataset. We also indicate the good accuracy of swell propagation thanks to the assimilation of directional wave spectra. An analysis has been conducted for wave-current interactions and also discussions about extreme values and trend of time series are suggested.

作为哥白尼海洋服务的一部分，WAVERYS是多年的波浪再分析，可提供1/5°的精细网格分辨率的全球波浪数据。这次海浪再分析涵盖了1993-2019年期间，并传播了描述海面海况的3小时综合海浪参数。所用的波浪模型是MFWAM模型的版本4，该模型由海冰分数和大气再分析ERA5提供的风驱动。WAVERYS包括对Sentinel-1提供的高度计波数据和定向波谱的同化。波浪再分析还包括通过使用海洋再分析GLORYS提供的3小时地表强迫来进行波浪-电流相互作用。本文重点介绍了WAVERYS提供的波浪参数评估。已经使用独立的高度计有效波高和浮标波数据进行了验证。结果表明，与HY-2A高度计相比，SWH（有效波高）的散射指数具有8.7％的良好准确性。此外，我们指出，相对于ERA5波数据集，来自WAVERYS的SWH散射指数提高了约9％。由于方向波频谱的同化，我们还表明了涌浪传播的良好准确性。已经对波流相互作用进行了分析，并提出了关于极值和时间序列趋势的讨论。我们指出，相对于ERA5波数据集，来自WAVERYS的SWH散射指数提高了约9％。由于方向波频谱的同化，我们还表明了涌浪传播的良好准确性。已经对波流相互作用进行了分析，并提出了关于极值和时间序列趋势的讨论。我们指出，相对于ERA5波数据集，来自WAVERYS的SWH散射指数提高了约9％。由于方向波频谱的同化，我们还表明了涌浪传播的良好准确性。已经对波流相互作用进行了分析，并提出了关于极值和时间序列趋势的讨论。