| Proceedings of the l8th Annual Seismic Research Symposium on Monitoring A Comprehensive Test Ban Treaty, 4-6 September 1996 |
17 JUL 96 |
1070 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; Delaine T. Reiter; PHILLIPS LAB HANSCOM AFB MA
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 | These Proceedings contain papers presented at the Eighteenth Annual Seismic Research Symposium on Monitoring a Comprehensive Test Ban Treaty (CTBT), held 4-6 September 1996, in Annapolis, Maryland. This Symposium represents the combined annual review for the basic seismology program funded by the Air Force Office of Scientific Research (AFOSR) and the regional verification program funded by the Phillips Laboratory (PL), Hq Air Force Technical Applications Center (AFTAC), Department of Energy ... |
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| Proceedings of the Annual Seismic Research Symposium on Monitoring a Comprehensive Test Ban Treaty (17th) Held in Scottsdale, Arizona on 12-15 September, 1995 |
14 AUG 95 |
1071 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; Delaine T. Reiter; PHILLIPS LAB HANSCOM AFB MA
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| Limitation Code: APPROVED FOR PUBLIC RELEASE DOCUMENT PARTIALLY ILLEGIBLE |
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| Proceedings of the Annual Seismic Research Symposium (16th) Held in Thornwood, New York on 7-9 September 1994 |
08 AUG 94 |
423 pages |
| Authors:
John J. Cipar; James F. Lewkowicz; Jeanne M. McPhetres; PHILLIPS LAB HANSCOM AFB MA
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| These Proceedings contain papers presented at the Sixteenth Annual Seismic Research Symposium held 7-9 September 1994, in Thornwood, New York. This Symposium represents the combined annual review for the seismic verification research programs funded by the Air Force Phillips Laboratory, PL/GPE and the Air Force Office of Scientific Research, AFOSR/NM. The scientific objectives of the research programs are to improve the Air Force's capability to seismically detect, locate, identify, and ... |
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| Proceedings of the Annual Seismic Research Symposium (15th) Held in Vail, Colorado on 8-10 September 1993 |
03 AUG 93 |
444 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; PHILLIPS LAB HANSCOM AFB MA
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| This Symposium represents the combined annual review for the seismic verification research programs. The scientific objectives of the research programs are to improve the Air Force's capability to seismically detect, locate, identify, and estimate the yield of underground nuclear explosions. The purpose of these Symposia is to provide the sponsoring agencies an opportunity to review research, particularly contractor research, accomplished during the preceding year and to outline areas of investigation ... |
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| Proceedings of the Annual PL/DARPA Seismic Research Symposium (14th) Held in Tucson, AZ on 16-18 September 1992 |
17 AUG 92 |
486 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; PHILLIPS LAB HANSCOM AFB MA
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| Partial contents of papers presented include: A Generalized Likelihood Ratio Test in Outlier Detection or Script Matching; A |
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| Proceedings of the Annual PL/DARPA Seismic Research Symposium (13th), Held in Keystone, Colorado on 8-10 October 1991 |
30 AUG 91 |
553 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; PHILLIPS LAB HANSCOM AFB MA
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| In its capacity as a technical agent, the PL's Solid Earth Geophysics Branch manages the DARPA Nuclear Monitoring Research Office's and its own Air Force funded basic research program in verification seismology. The scientific objectives of these programs are to improve the Air Force's capability to seismically detect, locate, identify and estimate the yield of underground nuclear explosions. The purpose of this symposium is to provide the sponsoring agencies an ... |
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| Proceedings of the Annual DARPA/AFGL Seismic Research Symposium (10th) Held in Fallbrook, California on May 3-5, 1988. Addendum |
17 DEC 90 |
253 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; AIR FORCE GEOPHYSICS LAB HANSCOM AFB MA
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| Contents: What's Needed for a Quantitative and Confident Specification of a Verifiable Low Threshold Test Ban Treaty; Wave Propagation Issues Associated with Explosive Sources; Current Research Issues in Nuclear Test Limitation Treaty Monitoring; Engineering Perspectives on Seismic Monitoring of the Soviet Union; Attenuation and Moduli from Hysteresis Loops at 0.1 Hz; Pattern Recognition for Earthquake Detection; Nonlinear Constitutive Relations at Moderate Strain - .001 to .000001 in Salt; Development of ... |
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| Proceedings of the Annual DARPA/AFGL Seismic Research Symposium (8th), 6-8 May 1986. Addendum |
13 DEC 90 |
116 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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| Partial contents: Nuclear test verification; The curious case of the missing explosion; Analysis of teleseismic P wave coda using multichannel deconvolution methods and comparison to finite difference calculations; Salt dome-related seismicity near Kulyab, Tadjikistan, USSR; Focal depths of shallow local earthquakes from comparison of polarization filtered data with synthetics; Observations of first order mantle reverberations; Yield estimates from vertical-and transverse-component Lg spectra and polarization filtering to enhance regional phases; Numerical ... |
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| Proceedings of the Annual DARPA/AFGL (8th) Seismic Research Symposium Held in Colorado Springs, Colorado on 6-8 May 1986 |
03 DEC 90 |
230 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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| Partial contents: Resolution of source functions and structure from near-field data; Seismic wave propagation in a laterally heterogeneous crust; Modeling Lg propagation across crust-mantle transition zones and evaluating surface wave path corrections; Geophysical investigations at Pahute Mesa, NV; Regional studies with broadband data; Determination of source function for a seismic swarm; Damage mechanics of brittle solids in compression; Sources spectra determination for a recent seismic crisis in the east part ... |
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| Proceedings of the Annual DARPA/AFGL Seismic Research Symposium (7th) Held in Colorado Springs, Colorado on 6-8 May 1985 |
08 NOV 90 |
458 pages |
| Authors:
James F. Lewkowicz; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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| The scientific objective of this program is to improve the Air Force's capability to seismically detect, locate, identify and estimate the yield of underground nuclear explosions. The purpose of this symposium, which is organized annually by LWH, is to provide the GSD staff an opportunity to review the research accomplished during the preceding year and outline areas of investigation for the coming year. For the researchers, it provides a forum ... |
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| Proceedings of the Annual (9th) DARPA/AFGL Seismic Research Symposium Held in Nantucket, Massachusetts on 15-18 June 1987 |
06 NOV 90 |
258 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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| Partial Contents: Focusing and Defocusing of Teleseismic P waves by Known 3-D Structure Beneath Pahute Mesa, Spherical Wave Propagation in Low Porosity Brittle Rocks; Propagation-Corrected Lg Spectra to Estimate Yields of Soviet Explosions and Isolation and Enhancement of Regional Phases for Earthquakes in the Eastern United States; Wave Propagation Modeling and Regional Discriminants; Seismic Attenuation and Yield Estimates: New Results using the Lg Phase, High Frequency Seismic Source Functions for ... |
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| Proceedings of the Annual DARPA/AFGL Seismic Research Symposium (11th) Held in San Antonio, Texas on 2-4 May 1989 |
06 NOV 90 |
521 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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| Partial contents: Near Source Observations of Quarry Explosions, Small Explosion Discrimination and Yield Estimation, Rg as a Depth Discriminant for Earthquakes and Explosions: A Case Study in New England, A Comparative Study of High Frequency Seismic Noise at Selected Sites in the USSR and USA, Chemical Explosions and the Discrimination Problem, Application of Simulated Annealing to Joint Hypocenter Determination, Frequency Dependence of Q sub Lg and Q in the Continental ... |
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| Proceedings of the Annual DARPA/GL Seismic Research Symposium (12th) Held in Key West, Florida on 18-20 September 1990 |
24 AUG 90 |
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| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; GEOPHYSICS LAB (AFSC) HANSCOM AFB MA
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 | The scientific objective of this symposia was to improve the Air Force's capability to seismically detect, locate, identify and estimate the yield of underground nuclear explosions. The purpose of this symposium, which is organized annually by LWH, is to provide the NMRO staff an opportunity to review the research accomplished during the preceding year and outline areas of investigation for the coming year. For the researchers, it provides a forum ... |
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| Near Field Static Tilt from Surface Loads. |
08 JUL 1980 |
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| Authors:
James F. Lewkowicz; Gerry H. Cabaniss; AIR FORCE GEOPHYSICS LAB HANSCOM AFB MA
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| A field experiment was performed to determine the response of a tiltmeter to static loads produced by a vehicle. This report compares the results of a theoretical approximation of the vehicle load, by four point forces acting on a linear elastic single layer homogeneous half space, with the experimental data. Results indicate that this model gives a reasonable approximation to the field data. In order to model the field conditions ... |
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