4. Global Seismograph Network - GSN:

DATES OF OPERATION:	14 Sep 1988 to 31 Jan 1994.
		NOTE:  Seismometer location for this time period
                Latitude:  43.9562N     Longitude:  42.6888E
                Elevation:   1210 M     Depth:          2 M

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

CALIBRATION EPOCHS:	1988, 258 - 1994, 031

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