1. Global Seismograph Network - GSN:

DATES OF OPERATION:	07 Dec 1989 to 28 May 1992.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband and very long
period channels.  IDA MK4 data acquisition system. 

CALIBRATION EPOCH:	1989, 341 - 1992, 149

DIGITAL FORMAT:
16 bit integer data words for all broadband (20 sps).  32 bit integer words 
for synthesized long period (1 sps) and very long period (0.1 sps) data.  

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