Abstract In the present study, the qualities of the HY-2B along-track significant wave heights (SWH) are assessed, including precision and accuracy. A quality evaluation based on 1 Hz standard deviations is proposed to detect the precision of HY-2B SWH products. The density plots of the (SWH, std) pairs obtained by the HY-2B, Jason-2 and Jason-3 are compared. And the results indicates that the HY-2B SWH root mean square error levels are significantly lower than those observed for the other altimeters. With respect to the SWH obtained from the wave rider buoys, buoys of the National Data Buoy Center (NDBC), Jason-2 and Jason-3, the root mean square errors are 24 cm, 27 cm, 26 cm and 23 cm respectively. The comparison results confirm that the quality of the HY-2B SWH data higher.

中文翻译：

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HY-2B卫星雷达高度计显着波高产品评价

摘要 在本研究中，对 HY-2B 沿航迹有效波高 (SWH) 的质量进行了评估，包括精度和准确度。提出了基于 1 Hz 标准偏差的质量评估来检测 HY-2B SWH 产品的精度。比较了 HY-2B、Jason-2 和 Jason-3 获得的 (SWH, std) 对的密度图。结果表明，HY-2B SWH 均方根误差水平显着低于其他高度计观察到的水平。对于从乘浪浮标、国家数据浮标中心 (NDBC) 的浮标 Jason-2 和 Jason-3 获得的 SWH，均方根误差分别为 24 cm、27 cm、26 cm 和 23 cm。对比结果证实HY-2B SWH数据的质量更高。