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Title: LLNL Middle East and North Africa research database

Abstract

The Lawrence Livermore National Laboratory (LLNL) CTBT R{ampersand}D program has made significant progress assembling a comprehensive seismic database (DB) for events and derived parameters in the Middle East and North Africa (ME/NA). The LLNL research DB provides not only a coherent framework in which store and organize large volumes of collected seismic waveforms and associated event parameter information but also provides an efficient data processing/research environment. The DB is designed to be flexible and extensible in order to accommodate the large volumes of data in diverse formats from many sources in addition to maintaining detailed quality control and metadata. Researchers can make use of the relational nature of the DB and interactive analysis tools to quickly and efficiently process large volumes of data. Seismic waveforms have been systematically collected form a wide range of local and regional networks using numerous earthquake bulletins and converted a common format based on CSS3.O while undergoing quality control and corrections of errors. By combining traveltime observations, event characterization studies, and regional wave-propagation studies of the LLNL CTBT team, we are assembling a library of ground truth information and event location correction surfaces required to support the ME/NA regionalization program. Corrections and parameters distilled frommore » the LLNL research DB will provide needed contributions to the DOE knowledge base for the ME/NA region and enable the USNDC and IDC to effectively verify CTBT compliance.« less

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
651584
Report Number(s):
UCRL-JC-128101; CONF-970967-
ON: DE98057425; BR: GC0402000
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Research symposium on monitoring a comprehensive test ban treaty, Orlando, FL (United States), 23-25 Sep 1997; Other Information: PBD: 15 Jul 1997
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; MIDDLE EAST; AFRICA; DATA BASE MANAGEMENT; DATA; SEISMOLOGY; SEISMIC WAVES; GROUND MOTION

Citation Formats

Ruppert, S D, Hauk, T F, and Leach, R. LLNL Middle East and North Africa research database. United States: N. p., 1997. Web.
Ruppert, S D, Hauk, T F, & Leach, R. LLNL Middle East and North Africa research database. United States.
Ruppert, S D, Hauk, T F, and Leach, R. 1997. "LLNL Middle East and North Africa research database". United States. https://www.osti.gov/servlets/purl/651584.
@article{osti_651584,
title = {LLNL Middle East and North Africa research database},
author = {Ruppert, S D and Hauk, T F and Leach, R},
abstractNote = {The Lawrence Livermore National Laboratory (LLNL) CTBT R{ampersand}D program has made significant progress assembling a comprehensive seismic database (DB) for events and derived parameters in the Middle East and North Africa (ME/NA). The LLNL research DB provides not only a coherent framework in which store and organize large volumes of collected seismic waveforms and associated event parameter information but also provides an efficient data processing/research environment. The DB is designed to be flexible and extensible in order to accommodate the large volumes of data in diverse formats from many sources in addition to maintaining detailed quality control and metadata. Researchers can make use of the relational nature of the DB and interactive analysis tools to quickly and efficiently process large volumes of data. Seismic waveforms have been systematically collected form a wide range of local and regional networks using numerous earthquake bulletins and converted a common format based on CSS3.O while undergoing quality control and corrections of errors. By combining traveltime observations, event characterization studies, and regional wave-propagation studies of the LLNL CTBT team, we are assembling a library of ground truth information and event location correction surfaces required to support the ME/NA regionalization program. Corrections and parameters distilled from the LLNL research DB will provide needed contributions to the DOE knowledge base for the ME/NA region and enable the USNDC and IDC to effectively verify CTBT compliance.},
doi = {},
url = {https://www.osti.gov/biblio/651584}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 15 00:00:00 EDT 1997},
month = {Tue Jul 15 00:00:00 EDT 1997}
}

Conference:
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