Angle dependent surface multiple attenuation for two-component marine bottom sensor data

A system for generating attenuated multiple data for two-component marine seismic sensor data, comprising:

• an acoustic energy source configured to generate an acoustic wavefield;
• at least one sensor pair, the at least one sensor pair comprising two types of sensors configured to detect wavefields resulting from the generation of an acoustic wavefield by the acoustic energy source;
• a recording system configured to separately record sensor readings from each sensor of the at least one sensor pair as data, the recording system configured to record the location of the acoustic energy source at a time when the acoustic energy source generates an acoustic wavefield, and said recording system configured to record the location of the at least one sensor pair;
• and
• a data processor configured to analyze the data and produce the attenuated multiple data;
• wherein the data processor calculates angle dependent estimated values of upgoing and downgoing wavefields that generated the data set, and wherein the data processor uses the estimated values of the upgoing and downgoing wavefields to generate the attenuated multiple data during use.