1. Global Seismograph Network - GSN:

DATES OF OPERATION:	04 Nov 1999 to Present.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband and very long 
period channels.  IDA MK7 data acquisition system.
 
CALIBRATION EPOCH:	1999, 308 - Present

DIGITAL FORMAT:
16 bit integer data 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