USA flag logo/image

An Official Website of the United States Government

SEISMIC DISCRIMINANTS IN EURASIA

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
15185
Program Year/Program:
1993 / SBIR
Agency Tracking Number:
15185
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ENSCO Inc
5400 Port Royal Rd Springfield, VA 22151
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1993
Title: SEISMIC DISCRIMINANTS IN EURASIA
Agency / Branch: DOD / DARPA
Contract: N/A
Award Amount: $243,484.00
 

Abstract:

THIS PROPOSED PHASE I RESEARCH PROJECT PROVIDES A UNIQUE OPPORTUNITY TO REVIEW REGIONAL SEISMIC DISCRIMINANTS, DEVELOPA STATISTICAL METHOD FOR IDENTIFYING EVENTS, DEVELOP QUALITY CONTROL PROCEDURES FOR ALLOWING FOR EFFECTS OF NOISE AND REGIONAL PROPAGATION EFFECTS ON DISCRIMINANTS, AND TO STATISTICALLY ANALYZE THE DISCRIMINATION CAPABILITY OF THESE REGIONAL DISCRIMINANTS. THE LARGE DATABASE OFREGIONAL WAVEFORMS AND SPECTRA PRODUCED BY THE INTELLIGENT MONITORINGSYSTEM (IMS), IMPLEMENTED AT THE CENTER FOR SEISMIC STUDIES (CSS), WILL BE USED TO TEST THE DISCRIMINATION METHODS. SPECTRAL RMS LEVELS FOR EACH REGIONAL PHASE WILL BE DETERMINED FOR MANY EARTHQUAKES AND ECONOMIC EXPLOSIONS IN EURASIA AND INPUT TO THE DISCRIMINATION APPROACH. A MULTIVARIATE, MAXIMUM-LIKELIHOOD APPROACH WILL BE USED TO ESTIMATE DISCRIMINANT FUNCTIONS FOR DISTINGUISHING EXPLOSIONS AND EARTHQUAKES. THE METHOD WILL SYSTEMATICALLY ACCOUNT FOR DATA CENSORING WHEN SIGNAL LEVELS ARE LESS THAN THE NOISE. THE STATISTICAL INTERDEPENDENCE OF THE DISCRIMINANTS WILL ALSO BE EXAMINED. THE EFFECT ON THE DISCRIMINANTS OF POTENTIAL EVASION SCENARIOS, INCLUDING DECOUPLING, ARRAY SHOT, AND HIDE-IN-EARTHQUAKE, WILL BE INVESTIGATED. THE RESULTANT TECHNIQUES WILL BE INCLUDED IN THE INTELLIGENT SEISMIC EVENT SYSTEM (ISEIS) CURRENTLY BEING DEVELOPED FOR ROUTINE EVENT IDENTIFICATION IN THE IMS. ANTICIPATED BENEFITS - THE RESULTS OF THIS STUDY WILL PROVIDE A BETTER UNDERSTANDING OF REGIONAL DISCRIMINANTS ON A STATISTICAL BASIS. THE ANALYSIS OF THE LARGE IMS DATABASE, COLLECTED FROM THE NEW REGIONAL ARRAYS AND SINGLE SEISMIC STATIONS LOCATED IN EURASIA, WILL PROVIDE AN EVALUATION OF THE CAPABILITIES OF THE NEW SEISMIC DATA SOURCES FOR EVENT IDENTIFICATION. THE RESULTS OF THIS RESEARCH WILL BE DIRECTLY INCORPORATED IN THE ISEIS SYSTEM AT THE CSS.

Principal Investigator:

Douglas Baumgardt
Principal Investigator
7033219000

Business Contact:

Small Business Information at Submission:

Ensco Inc.
5400 Port Royal Road Springfield, VA 22151

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No