Using of frequency dependence of sound reflectivity for elastic layered bottom reconstruction

The relation between the sound reflection losses measured at fixed grazing angles and the characteristics of the sediment layer and the underlying half-space is considered. Based on this relation, a method of the reconstruction of the sea bottom characteristics is developed for a ocean bottom consisting of a single sediment layer overlaying a semi-infinite elastic half-space, Using this bottom model, the reconstruction of the characteristics of a layered elastic bottom is performed from the numerically simulated data with induced synthetic error. The work was supported by the RFBR (97-05-64712).