Ocean wave directional spectra estimation from an HF ocean radar with a single antenna array: Observation
Ocean wave directional spectra estimation from an HF ocean radar with a single antenna array: Observation
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DOI：
10.1029/2005jc002881
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发表时间：
2005-11
影响因子：
--
通讯作者：
Y. Hisaki
中科院分区：
文献类型：
--
作者：
Y. Hisaki
提出了一种利用单天线阵高频雷达估算海浪方向谱的方法。该方法将波浪能量平衡方程和风矢量连续性方程纳入反演方法，求解多普勒谱与波浪谱的积分方程。该方法采用动态外推法在多普勒谱信噪比不高的位置估计波谱。波高与现场观测结果吻合较好。此外，雷达估计的海面风与高频雷达观测区域附近的风之间存在相关性。所考虑的方法可以估计膨胀条件下的波浪方向谱。
[1] A method of estimating ocean wave directional spectra using a]high-frequency (HF) radar with a single antenna array was applied to actual ocean data. This method incorporates the wave energy balance equation and the continuity equation of wind vectors into the inversion method to solve the integral equation which relates a Doppler spectrum to wave spectra. This method uses dynamic extrapolation to estimate wave spectra at positions where the signal-to-noise (SN) ratio in Doppler spectra is not high. The agreement of wave heights with in situ observation is good. Additionally, there is a correlation between radar-estimated sea surface winds and winds near the HF radar observation area. The method under consideration was found to be able to estimate wave directional spectra in swell conditions.