Mobile Marine Seismology Instrumentation
Currently available
SPOBS
- Description: Short period Ocean Bottom Seismometer, long deployments (LC2000)
- Number: 17
- Specifications
- Sampling rates (sps): 62.5, 125, 250, 500
- Seismometer: Sercel L-28 3C (4.5Hz +)
- Hydrophone: HiTech HTI-90U hydrophone, broadband version (20s to 15 kHz)
- Max deployment depth: 5000m
- Max Autonomy: 13 months
- Description: Short period Ocean Bottom Seismometer (LotOBS)
- Number: 5
- Specifications
- Sampling rates: 250, 500, 1000, 2000
- Seismometer: Geospace GS-ONE 3-component geophone, 4.5 Hz
- Hydrophone: HiTech HTI-90U standard (2 Hz to 20 kHz)
- Max deployment depth: 6000m
- Max Autonomy: 6 months
- Weight in seawater (with/out anchor, kg): 71 / 35
BBOBS
- Description: Broadband Ocean Bottom Seismometer
- Number: 7
- Specifications:
- Sampling rates (sps): 62.5, 125, 250, 500
- Seismometer: Trillium T240 or Horizon 120 (240/120s to 50 Hz)
- Pressure: Differential pressure gauge (300s to 50 Hz)
- Max deployment depth: 5000m
- Max Autonomy: 12 months
- Dimensions (HxWxD, mm): 1303x1000x2609
- Weight in air (with/out anchor, kg): 400 / 331
- Weight in seawater (with/out anchor, kg): 43 / -16
H-SOFAR
- Description : Hydrophone in the SOFAR channel
- Nombre : 14
- Spécifications
- Sampling rates (sps) : 240
- Hydrophone : HTI-90U hydrophone (2 Hz – 20 kHz)
- Max Autonomy : 12 mois
- Max deployment depth : 6000m
- Dimensions (HxWxD mm): 2400x800x1000
- Weight in air (with/out anchor, kg): 710/310
- Weight in seawater (with/out anchor, kg): 274/-126
- Description : Hydrophone in the SOFAR channel with 3 shuttles
- Nombre : 3
- Spécifications
- Sampling rates (sps) : 125, 250, 500, 1000
- Hydrophone : HTI-90U hydrophone (2 Hz – 20 kHz)
- Max Autonomy : 36 mois
- Max deployment depth : 6000m
- Dimensions (HxWxD, mm): 2400x800x1000
- Weight in air (with/out anchor, kg): 760/360
- Weight in seawater (with/out anchor, kg): 274/-126
Future instrumentation
C-BBOBS
- Description: Compact Broadband Ocean Bottom Seismometer
RROBS
- Description: Rapid Response Ocean Bottom Seismometer
ASOBS
- Description: Active Seismic Ocean Bottom Seismometer
Lander
- Description: Autonomous Seafloor-Sea Surface transiting lander
BPR
- Description: Nano-Precision Bottom Pressure Recorder
- Description: Drift-measuring (A-O-A) Bottom Pressure Recorder
![Le capteur ADA Résif et OBS CNRS-INSU prêts à être déployés sur le pont du navire Marion Dufresne lors de la campagne Mayobs15 à Mayotte Le capteur ADA Résif et OBS CNRS-INSU prêts à être déployés sur le pont du navire Marion Dufresne lors de la campagne Mayobs15 à Mayotte](https://smm.epos-france.fr/wp-content/uploads/sites/7/2022/11/Mayobs15-INSU-OBS_A0A-min-scaled-1.jpg)
Résif A-0-A bottom pressure recorder and INSU/IPGP SPOBSs on the deck of the research vessel Marion Dufresne, ready to be deployed during the Mayobs15 expedition at Mayotte © Denis Dausse, Revosima, 2020 – En savoir plus