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The OBSs

Detailed description of the OBSs.

The park has 18 4-component short-period OBSs (SPOBS) and 9 4-component broadband OBSs (BBOBS). Both can be deployed for up to one year at a time.

OBSs courte-periodes (SPOBS)

Triaxial 4.5 Hz geophone and a hydrophone. Designed for active seismics (refraction and reflection) and local passive seismology. Can be deployed for more than one year.

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Broad-band OBSs (BBOBS)

Triaxial broadband seismometer (Trillium T240) and differential pressure gauge. Designed for passive seismology experiments but can be used for active seismic surveys.

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