1. Global Seismograph Network - GSN: IRIS -2 System

DATES OF OPERATION:  		05 Jul 1991 to 30 Sep 1992.

SEISMOMETER TYPE AND ADC:
Streckeisen Model STS-1/VBB 3 component system.  ADC is Martin Marietta EDME.

DIGITAL FORMAT:
24 bit integer data words for all components.  Range: +8,388,607 
to -8,388,608 counts.

EVENT DETECTOR ALGORITHM:  None.

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:
A description of the IRIS-2 system can be found in USGS Open-File Report 89-471, Peterson et al (1989).  This
station was closed in September, 1992, and the equipment was moved to PAB which
is a much quieter location.