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摘要

全文摘要次数: 3908 全文下载次数: 38
引用本文:

DOI:

10.11834/jrs.20120406

收稿日期:

2010-11-18

修改日期:

2011-04-29

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“凤凰”台风期间海面风、浪的高频地波雷达OSMAR071遥感
1.武汉大学 电子信息学院,湖北 武汉 430079;2.厦门大学 近海海洋环境国家重点实验室,广东 厦门 361005;3.武汉大学 国际软件学院,湖北 武汉 430079
摘要:

介绍了OSMAR071高频地波雷达系统“凤凰”台风期间海面风、浪遥测结果。文中给出高频地波雷达OSMAR071 风、浪反演算法:利用SBM模型结合多波束采样法反演风向;利用改进的Barrick模型进行有效波高的反演;利用SMB关系式进行风速反演。将雷达定点观测结果与浮标数据进行对比,表现出很好的一致性,其中有效波高相关系数为0.72,均方根误差为0.48 m,风向相关系数为0.97,均方根误差为27.7°,风速的相关系数为0.6,均方根误差为 3.5 m/s。文中还对影响探测精度的因素进行了分析。

Ocean surface wind and wave monitoring at Typhoon Fung-Wong by HFSWR OSMAR071
Abstract:

This paper provides wind and wave observation results detected by high frequency surface wave radar OSMAR071 during Typhoon Fung-Wong. Methods for extracting ocean surface parameters from HFSWR sea echo are introduced. The Stewart Barnum and Maresca SBM method combined with multi-beam sampling method is used to invert wind direction. A modified Barrick’s model is proposed to obtain significant wave height and the SMB formulation is used to extract wind speed information. Compared with buoy data of wind and wave, radar inversion results show good agreement with in-situ observations. The root-mean-square error RMSE of significant wave height, wind speed and wind direction between radar-derived and those from the buoy are 0.48 m, 3.5 m/s, 27.7°, and the coefficients of determination (R2) are 0.72, 0.60 and 0.97, respectively. Factors affecting detecting accuracy are also discussed in this paper.

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