INSTRUMENT TYPES AND THEIR DEFINITIONS
Type | Definition |
---|---|
ACC | Acceleration |
DSS | LLNL Digital Seismic System |
DWWSSN | Digital World Wide Standard Seismograph Station |
ELMAG | Electromagnetic |
GENERAL | General seismometer |
GSREF | USGS Refraction |
IW | EYEOMG-spectral differentiation |
S750 | S750 Seismometer |
LLL | LLL broadband analog seismometer |
LLSN | LLSN L-4 seismometer |
LNN | Livermore NTS Network instrument |
NORESS | NORESS (NRSA) |
NORESSHF | NORESS high frequency element |
POLEZERO | Instrument specification in terms of poles and zeros |
PORTABLE | Portable seismometer with PDR2 |
RSTN | Regional Seismic Test Network |
REFTEK | Reftek 97-01 portable instrument |
SANDIA | Sandia system 23 instrument |
SANDIA3 | Sandia new system with SL-210 |
SRO | Sesimic Research Observatory |
VEL | Velocity Spectal Operator |
WA | Wood-Anderson |
WIECH | Wiechert seismometer |
WWSP | WWSSN short period |
NONE | No instrument |
References to the Blacknest specifications for various instrument types were removed from the documentation in version 10.6e and are no longer supported, although these instruments still remain in the SAC program.
INSTRUMENTS WHICH REQUIRE SUBTYPES
Instrument | Subtype |
---|---|
LLL | LV, LR, LT, MV, MR, MT, EV, ER, ET, KV, KR, KT, BB (station and component abbreviation, or broadband) |
LNN | BB, HF (broadband or high frequency) |
NORESS | LP, IP, SP (long-, intermediate- or short-period) |
POLEZERO | file (file describing poles and zeroes) |
RSTN | [CP, ON, NT, NY, SD][KL, KM, KS, 7S][Z, N, E] (station; KS36000 long-, medium- or short-period, or S750 short-period; component) |
SANDIA | [N, O][T, L, B, D, N, E][V, R, T] (new or old acquisition system; station abbreviation; component) |
SRO | BB, SP, LP (broadband, short or long period) |
INSTRUMENTS WHICH REQUIRE OTHER OPTIONS
Instrument | Options |
---|---|
ELMAG |
|
GENERAL |
|
LLL |
|
REFTEK |
|