ABSTRACT

In this paper, the current field modulation is described using a solution of the wave action equation. Using an integrated equation model (IEM), a current field modulated scattering model is established. The sea surface backscattering coefficient decreases with increasing current speed. At high wind speeds, the change of backscattering coefficient under 1 m $\cdot$ s⁻¹ current field modulation is about 1 dB. An increase of 60° in the angle between wind and current direction leads to a decrease of 1.5 dB in the modulation coefficient. Finally, the model is verified using satellite data.

中文翻译：

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二维海流对海面雷达后向散射系数的影响

摘要

在本文中，使用波动方程的解来描述电流场调制。利用积分方程模型（IEM），建立了电流场调制散射模型。海面后向散射系数随着海流速度的增加而减小。高风速时，1m以下后向散射系数的变化$\cdot$s ^-1电流场调制约为1 dB。风向和水流方向之间的角度增加 60° 会导致调制系数减少 1.5 dB。最后，利用卫星数据对模型进行验证。