Concept
Sercel MicrOBS ocean bottom seismometer
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1681/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Sercel MicrOBS | ||
| Definition | An ocean bottom seismometer designed for deep water refraction seismic surveys. It records and monitors earthquakes and natural seismicity to determine epicentre and associated mechanisms in active tectonic areas. With 4C multi-component recording (3 geophones, 1 hydrophone), MicrOBS allows accurate characterization of P and S velocities in deep crustal layers. MicrOBS dives autonomously to the seafloor, and can be deployed for up to 24 days before being recalled to the surface via acoustic signal release. It contains rechargeable Li-Ion 15V/40Ah batteries and an 8 Gb compact flash card (optional 16 Gb). MicrOBS has a low frequency cut-off of 2 Hz (-3 db), a natural frequency of 4.5 - 10 Hz, and a sensitivity range from 32 V/m/s to 22.8 V/m/s. It is depth-rated to 6000 m. | ||
| Date | 2021-04-29T15:48:58 | ||
| Identifier | SDN:L22::TOOL1681 | ||
| Note | accepted | ||
| Is Version Of | TOOL1681 | ||
| version | 1 | ||
| Broader | L05:368 |
seismometers | |
L19:SDNKG17 |
sensor_model | ||
| Related | B75:ORG01805 |
Sercel | |
L35:MAN0176 |
Sercel | ||
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