TOL - STATION INSTRUMENTATION
2. Digital World Wide Standardized Seismograph System - DWWSSN: [ DW ]
With broad-band seismometers.
DATES OF OPERATION: 05 Oct 1987 to 05 Jul 1991
SEISMOMETER TYPE:
Streckeisen Model STS-1/VBB, 3 component system.
DIGITAL FORMAT:
16 bit integer data words for all components. Range: +32767 to -32768 counts.
EVENT DETECTOR ALGORITHIM:
The event detector used for the SHZ channel was developed at the ASL and is not
documented. The mid-period channels are detected on a straight forward
amplitude basis.
Click on any of the following items for further information.
The Noise Study was done using 1992 data, consequently, it is only an estimation
for this generation of station instrumentation.
COMMENTS: The original WWSSN seismometers were replaced with Streckeisens to
provide broad-band seismic data.
