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Modelling of marine vibrator data

Summary We discuss an effective and flexible approach to synthetic data modelling for marine vibrators that does not require modifications to existing modelling programs. The proposed approach uses un-aliased synthetic impulsive source data as input and provides the opportunity to incorporate acquisition related and environmental effects such as the sea-surface ghost and the motion of the source. The un-aliased nature of input synthetic data allows the reconstruction of the wavefield at desired spatial locations and its redatuming. In this paper we describe details of the modelling approach used and present examples of incorporating ghost and source motion effects. We also demonstrate the generation of data with omnidirectional and directional sweeps.