1. Global Seismograph Network - GSN:

DATES OF OPERATION:	18 Jun 1998 to Present.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband, long period and
very long period channels.  IDA MK7 data acquisition system.  

CALIBRATION EPOCHS:	1998, 169 - Present

DIGITAL FORMAT:
16 bit integer words for all broadband (20 sps) data.  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