1. Global Seismograph Network - GSN:  [ IU ]

DATES OF OPERATION:    01 NOV 1996 to present.

SEISMOMETER TYPE AND ADC:
Geotech KS-36000-I borehole seismometer and Kinemetrics FBA-23 low-gain 
accelerometer.  ADC is Quanterra QX80.

DIGITAL FORMAT:
24 bit integer data words for all broadband, long period, very long period and
ultra long period channels.  Range: +8,388,607 to -8,388,608 counts
16 bit integer data words for mass position and all environmental channels.
Range:  +32767 to -32768

EVENT DETECTOR ALGORITHM:
The Murdock event detector (Murdock, 1991) is used for the event detected compon
ents.

Click on any of the following items for further information.

• Channel Data
• Amplitude Response to Ground Velocity
• Seismic Noise Study graph information
  • Seismic Noise Level - Annual
  • Seismic Noise Level - Seasonal/Diurnal

COMMENTS: