Numerical modeling of Pn geometric spreading and empirically determined attenuation of Pn and Lg phases recorded in eastern Kazakhstan. Semiannual technical report No. 1, 1 January-30 June 1989
Technical Report
·
OSTI ID:7198500
The overall goal of this work is to estimate the detection and location capability of actual and hypothetical networks of stations and arrays in and around the Soviet Union. These estimates require the simulation of the detection and location capability of the networks. This report summarizes two studies of important issues involved in the normalization of the simulations. The first is a theoretical study of the dependence of Pn geometric spreading on the velocity gradient in the upper mantle. This is important because most methods for estimating Pn attenuation require assumptions regarding geometric spreading. The second study is an empirical parameterization of regional wave spectra recorded near the eastern Kazakhstan nuclear explosion test site. The results are compared to results from a similar parameterization of data recorded by the NORESS array in Norway. Data recorded by the NORESS and ARCESS arrays are plentiful and provide an excellent basis for normalizing the simulations. Data recorded in eastern Kazakhstan are relatively few at this time, but can be used to see if the NORESS/ARCESS data can be used as a reasonable representation of conditions in this area.
- Research Organization:
- Science Applications International Corp., San Diego, CA (USA)
- OSTI ID:
- 7198500
- Report Number(s):
- AD-A-216864/9/XAB; SAIC--89/1555
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
350300 -- Arms Control-- Verification-- (1987-)
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450300* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosion Detection
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ASIA
ATTENUATION
DETECTION
DOCUMENT TYPES
EARTH MANTLE
EASTERN EUROPE
ELASTICITY
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EXPLOSIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MECHANICAL PROPERTIES
NORWAY
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NUCLEAR EXPLOSIONS
PERFORMANCE
PROGRESS REPORT
SCANDINAVIA
SEISMIC ARRAYS
SEISMIC DETECTION
SEISMIC DETECTORS
SEISMIC WAVES
SEISMOGRAPHS
SEISMOLOGY
SIMULATION
SPECTRA
SYNTHESIS
TENSILE PROPERTIES
USSR
VELOCITY
WESTERN EUROPE
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450300* -- Military Technology
Weaponry
& National Defense-- Nuclear Explosion Detection
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ASIA
ATTENUATION
DETECTION
DOCUMENT TYPES
EARTH MANTLE
EASTERN EUROPE
ELASTICITY
EUROPE
EXPLOSIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MECHANICAL PROPERTIES
NORWAY
NUCLEAR EXPLOSION DETECTION
NUCLEAR EXPLOSIONS
PERFORMANCE
PROGRESS REPORT
SCANDINAVIA
SEISMIC ARRAYS
SEISMIC DETECTION
SEISMIC DETECTORS
SEISMIC WAVES
SEISMOGRAPHS
SEISMOLOGY
SIMULATION
SPECTRA
SYNTHESIS
TENSILE PROPERTIES
USSR
VELOCITY
WESTERN EUROPE