4. Global Seismograph Network - GSN:

DATES OF OPERATION:	14 Sep 1988 to 23 Feb 1989.

SEISMOMETER TYPE AND DATA ACQUISITION SYSTEM:
Streckeisen Model STS-1/VBB 3 component system for broadband, long period
and very long period channels & Teledyne Geotech Model GS-13 seismometers  
for triggered short period channels.  IDA MK4 data acquisition system.   

CALIBRATION EPOCHS:	1988, 258 - 1989, 054

DIGITAL FORMAT:
32 bit integer data words for all broadband (20 sps) and very long period
(0.1 sps) data and for synthesized long period (1 sps) data.  16 bit integer
data words for short period (200 sps) triggered 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