海浪感应磁场的频谱特性

Spectral character of magnetic field generated by ocean waves

根据M axw ell电磁理论,在地磁场中运动的海水将产生磁场。从理论上计算出海浪在地磁场中感应磁场的频谱是一种窄带频谱,随着海水深度的增加或风速的增加,其频带宽度变窄、峰值频率向低频方向移动。

According to the Maxwell theory, motion of the ocean waves will generate electromagnetic field. A narrow spectra induced by the ocean waves in the geomagnetic field is predicted. As ocean depth increases or wind velocity increases, the spectra width becomes narrower and the peak position shifts to low freguency.