In this section we determine the effect of poroelasticity on the inversion. Previously, the near seafloor sediment was assumed to be an elastic medium. In reality, however, it is a porous medium whose pores are filled with fluid. In order to evaluate the possible impact on the data and the inversion, synthetics were generated for water overlaying a porous half space. The sediment was assumed to have 46% porosity, thus making it very unconsolidated. The effective parameters for the half-space are given in Table 7.
|vp2 (m/s)||vs2 (m/s)||(kg/m3)|