2. Global Seismograph Network - GSN:

DATES OF OPERATION:	13 Jul 1998 to 03 Nov 1999.

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:	1998 194 - 1999, 307

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

COMMENTS:  From 14 Sep 1988 to 26 Jan 1994 sensors were on a pier in the 
basement of the recording building.