Concept
Geological Survey of Canada Ocean Bottom Seismometer
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1257/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | GSC OBS | ||
| Definition | An instrument designed to measure movements in the earth's crust while lying on the seabed. The OBS consists of a pressure cylinder containing a seismometer instrument package, glass buoyancy spheres mounted on a floatation assembly, a hydrophone, and recovery aids. This instrument was designed to withstand pressures and temperatures experienced at up to 6000 m depth in the oceanic environment. The OBS sensors include a 2-component gimballed geophone package (Geospace - Model HS1) operating at 4.5 Hz, with a sensitivity of 1.14 v/in/sec and a fixed amplifier gain of +100 db, and a hydrophone (OAS - Model ES2D), operating between 3 - 20 Hz, with a sensitivity of 87 db re 1V/ubar, and a fixed amplifier gain of +71 db. | ||
| Date | 2018-08-02T15:26:57 | ||
| Identifier | SDN:L22::TOOL1257 | ||
| Note | accepted | ||
| Is Version Of | TOOL1257 | ||
| version | 1 | ||
| Broader | L19:SDNKG17 |
sensor_model | |
| L05 SeaDataNet device categories - (3) | |||
| Related | B75:ORG00177 |
Bedford Institute of Oceanography | |
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