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Glossary on broadband (BB) stations

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Network Program Acronyms and Information

  • FDSN: Federation of Digital Broad-Band Seismograph Networks
  • GSN: Global Seismographic Network
  • IDA: International Deployment of Accelerometers
  • IRIS: Incorporated Research Institutions for Seismology
  • LDEO: Lamont-Doherty Earth Observatory. Columbia University, NY, USA
  • LLNL: Lawrence Livermore National Laboratory, Livermore, California, USA
  • ODC: Orfeus Data Center, De Bilt, The Netherlands
  • USGS: United States Geological Survey, USA

Instrument acronyms

  • VBB = Very Broad Band, 5 Hz-360s @ 20 sps (5 Hz-250s for GTSN)
  • BB = Broad Band, 5 Hz -20s @ 20sps (1HZ-360s @ 5sps for GEOSCOPE)
  • MP = Mid-Period, 1-30s
  • SP = Short Period
  • HF = High Frequency
  • DG = Dual-Gain
  • GR = Gain-Ranged
  • RA = Remotely Accessible
  • STS = Wielandt and Streckeisen

IRIS GSN Definitions

  • VBB = Very Broad Band (Steckeisen STS-1, Teledyne KS54000, or Teledyne KS36000i) @ 20 sps, 1 sps, 0.1 sps & 0.01 sps continuous
  • BB = Broad Band (Streckeisen STS-2) @ 20 sps, 1 sps, 0.1 sps & 0.01 sps continuous
  • HF = High Frequency (Teledyne GS-13, Streckeisen STS-2, or Guralp CMG-3) @ 100 sps triggered; 40 sps continuous planned for 94/95
  • LG = Low-Gain accelerometer (Kinemetrics FBA-23) @ 100 sps triggered, 1 sps continuous
  • 24b = Data acquisition system with 24-bit digitizer
  • 144dB/DG = Data acquisition system with 16-bit digitizer with both high and low gain channels for 144dB dynamic range

Federation Network Station

A subset of more than 130 global stations of the Federation of Digital Broad-Band Seismograph Networks or FDSN. They are chosen on the basis of hardware standards (VBB or BB and VLP, 3-component, dynamic range greater than 100db), noise characteristics, geographical location, and status (installed or installation imminent). The FDSN station and their description can be found in the FDSN Station Book.

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