CSS Ground-Truth Database: Version 1 Handbook.

• Main Authors: Grant, L., Coyne, J., Ryall, F.
• Other Authors: SCIENCE APPLICATIONS INTERNATIONAL CORP ARLINGTON VA CENTER FOR SEISMIC STUDI ES
• Format: Text
• Language: English
• Published: 1993
• Subjects: Seismic Detection and Detectors; *SEISMIC DISCRIMINATION; *SEISMIC SIGNATURES; *SURFACE TRUTH; DATA BASES; SOURCES; COASTAL REGIONS; WAVEFORMS; SEISMIC WAVES; EARTHQUAKES; HANDBOOKS; BLAST; BASINS(GEOGRAPHIC); SEISMOLOGY; GTDB(GROUND TRUTH DATA BASE); Norway; Northern Norway
• Online Access: http://www.dtic.mil/docs/citations/ADA294690; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA294690

The Ground-Truth Database (GTDB) is a collection of regional waveforms and phase parameters generated by seismic events of known type, (i.e. earthquake, quarry blast, etc.) where the event type is confirmed by some means in addition to seismic observations. The ground-truth data, in order of importance are: event type, location, depth and origin time. References to the source of the ground-truth (usually a document or a person) are readily available in the OTDB. The most significant modification to CSS 3.0 tables is that the origin table is used to store event information collected from experts in the local areas. This has resulted in a 'hybrid' origin table that contains, in each field, the best information available at the time of this writing. Version 1 of the GTDB includes 82 events in three distinct regions. Dataset #1 consists of 11 earthquakes and 15 quarry blasts in the Vogtland region of northwest Bohemia, Czech Republic; Dataset #2 consists of 25 events from an earthquake swarm just off the west coast of northern Norway in the Steigen area; Dataset #3 consists of 31 induced mine tremors in a major mining district known as the Lubin Copper Basin in western Poland. The GTDB is part of the Center's Central Database Repository (CDR), available on-line under the account 'DISCRIM1'. Original contains color plates: All DTIC/NTIS reproductions will be in black and white.