U.S. National Ocean Bottom Seismograph Instrument Pool
Instrumentation

SHORT PERIOD - LONG PERIOD

Labs at LDEO, SIO and WHOI build and maintain the entire fleet forming the US National Ocean Bottom Seismograph Instrument Pool. The instruments which comprise the pool are generally configured for either short or long period deployment experiments. The short period instruments are primarily designed for use in experiments involving an active source (e.g. air-guns) or passive listening at frequencies greater than 1 Hz. The long period instruments have been designed for extended-length deployments which record low frequency (<1 Hz) seismic energy from a passive source (e.g. earthquakes). However, all instruments within the pool are not confined to a particular type of experiment and, subject to availability, can be used for any field program envisioned.

OBSIP Instrument Inventory
Short period Broad band
LDEO -- 30
SIO 67 41
WHOI 29 31
Total 96 103