Inversion of up and down going signal for ocean bottom data

Separation of Up- and down-going wavefield

There are two well developed techniques to separate recorded signal into up- and down-going waves. For multi-component data, such separation can be done with the pressure and particle velocity recordings. Another way is to have two sets of hydrophones with one set on top of the other (an over-under arrangement). Although the over-under arrangement is used near the ocean's surface, it is an easy way to obtain up- and down-going wavefields for synthetic data examples.