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