On Love Waves across the Ocean

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Displacements of Love waves generated by a two-dimensional point source in a layered medium have been studied earlier by Sezawa & Sato by the method of successive reflections at the boundaries. In this paper the same problem has been worked out by using Green's function. The paper deals with the study of attenuation of Love waves of low periods in the coastal region. Experimental observations show that Love waves of smaller periods can be obtained only in the island observing stations. A slight intervention of the continental boundary is sufficient to attenuate lower period Love waves giving a hint thereby that attenuation of lower periods takes place perhaps at the continental margin. Taking a simplified configuration for the continental boundary and using Green's function technique, the displacement of Love waves due to a point source has been obtained and it has been shown that attenuation of Love waves of smaller periods takes place in the continental margin due to the slope of the boundary.