Concept
GURALP Aquarius ocean bottom seismometer
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1720/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | Guralp Aquarius OBS | |
| Definition | An Ocean Bottom Seismometer (OBS) that uses acoustic telemetry to deliver near real-time seismic data from the ocean floor to the surface without cables. The Aquarius is a freefall OBS equipped with acoustic data telemetry and a digital feedback tri-axial broadband seismometer. A three-axis magnetometer and a MEMS accelerometer record the seismometer's 3D position on the seabed for data rotation during post-processing. The instrument is fitted with an absolute pressure gauge (APG) and a hydrophone. The standard hydrophone has a frequency response of 2 Hz - 30 kHz, with the option to upgrade to an ultra-low frequency version of 100 s to 8 kHz. There is also the option for an additional high performance APG. operational at +/-90 °, with a flat response between 120s and 100Hz. The long period frequency corner of this design is user-selectable from 120 sec to 1 sec allowing the sensor response to be tailored to the environment. | |
| Date | 2021-07-27T11:05:39 | |
| Identifier | SDN:L22::TOOL1720 | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | |
| Broader | L05:368 | seismometers |
| Related | B75:ORG01765 | Guralp Systems Ltd |
L35:MAN0141 | Guralp Systems | |
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