Seismic interferometry based on cross-correlation of traces recorded at different positions makes it possible to recover new Green's functions and to obtain signals as if sources were placed at the receiver positions. This case history describes results obtained using sea-bottom hydrophone signals recorded in shallow water below the ice plate in an Alaska seismic survey. The aim was to simulate new shots at the sea-bottom receiver positions and to redatum the surface-generated seismic signals below the ice layer. The application was performed and the method investigated to attenuate the strong noise due to dispersive wave modes (mainly flexural waves) which propagate in the ice layer.

Seismic interferometry application to improve seismic reflection signals affected by ice-plate flexural noise

Petronio L;Farina B;Bellezza C;
2011

Abstract

Seismic interferometry based on cross-correlation of traces recorded at different positions makes it possible to recover new Green's functions and to obtain signals as if sources were placed at the receiver positions. This case history describes results obtained using sea-bottom hydrophone signals recorded in shallow water below the ice plate in an Alaska seismic survey. The aim was to simulate new shots at the sea-bottom receiver positions and to redatum the surface-generated seismic signals below the ice layer. The application was performed and the method investigated to attenuate the strong noise due to dispersive wave modes (mainly flexural waves) which propagate in the ice layer.
Flexural wave; Ice layers
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.14083/1230
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