In this section we compare the two AVO techniques for determining the near sea-floor parameters by using a simple model of 120 m of water overlying a half-space. In this case, the direct wave and the primary reflection from the seafloor will be unaffected by reflections from subsurface structure. The acoustic/elastic properties of the model are given by the following table:

layer | v_{p2} (m/s) |
v_{s2} (m/s) |
(kg/m^{3}) |

water | 1500 | - | 1050 |

sediment | 1693 | 437 | 1900 |

Table 1: Properties of the water and the underlying half-space.

The synthetics were generated with a maximum frequency of 30 Hz and a water depth of 120 m. The offset sampling was 25 m, the zero-offset was 12.5 m and the time sampling was 2 ms. The maximum angle of incidence was 84 and the critical angle was 62.

- Inversion Procedure
- Inversion of the pressure and vertical particle velocities
- Inversion of the vertical and horizontal particle velocities

11/11/1997