Download or read book Geometry and patterns of large aperture seismic arrays written by Richard T. Lacoss and published by . This book was released on 1965 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of possible configurations for a Large Aperture Seismic Array has been completed. An array having 21 identical subarrays located on three concentric circles has been found to yield the most satisfactory pattern in wave number space of all the configurations tested. Patterns for some alternative placements of subarrays, including that of the experimental LASA in Montana, have been included in this report. This study of patterns in wave number space has yielded the suggestion that a LASA having a diameter of 200 km should be composed of subarrays from 10 to 15 km in diameter. Such an increase of subarray size above the 7 km diameter subarrays of the experimental LASA would require the use of less regular subarray geometries than those which have been used in Montana. A sensitivity function for patterns has been developed. This function can be used to predict the change in patterns which might result from changes in seismometer or subarray positions. Since the sensitivity function predicts possible changes in patterns, it can be used to set bounds upon changes in an array which can be made without severely changing the pattern. The tight bounds imposed by the sensitivity function can be relaxed if the pattern resulting from any anticipated change in position is actually computed. Since very little computer time is required to compute a pattern, this procedure is highly recommended. (Author).

Download or read book A LARGE APERTURE SEISMIC ARRAY written by P. E Green (Jr) and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Large Aperture Seismic Array is an experimental system designed to provide improved capability for seismic discrimination of nuclear explosions and earthquakes. This improvement is to be brought about by suppression of reverberation and microseismic noise relative to the signal through the use of a larger number of sensors and a larger array aperture than previously employed in seismic arrays for this purpose. This report gives a brief sketch of the way in which the signal improvement is to be achieved, followed by a short physical description of the various parts of the entire array design as it is currently envisioned, including the choice of sensors, array geometry, signal telemetry, and signal processing. (Author).

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1966 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Documents on Disarmament written by and published by . This book was released on 1971 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Documents on Disarmament written by United States. Arms Control and Disarmament Agency and published by . This book was released on 1970 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring the Comprehensive Nuclear Test Ban Treaty Data Processing and Infrasound written by Zoltan A. Der and published by Springer. This book was released on 2012-12-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: On September 10, 1996, The United Nations General Assembly adopted the Copmprehensive Nuclear-Test-Ban Treaty (CTBT), prohibiting nuclear explosions worldwide, in all environments. The treaty calls for a global verification system, including a network of 321 monitoring stations distributed around the globe, a data communications network, an international data center (IDC), and on-site inspections, to verify compliance. This volume presents certain recent research results pertaining on methods used to process data recorded by instruments of the International Monitoring System (IMS) and addressing recording infrasound signals generated by atmospheric explosions. Six papers treating data processing provide an important selection of topics expected to contribute to improving our ability to successfully monitor a CTBT. Five papers concerning infrasound include descriptions of ways in which that important research area can contribute to CTBT monitoring, the automatic processing of infrasound data, and site conditions that serve to improve the quality of infrasound data.

Download or read book Petroleum Abstracts written by and published by . This book was released on 1966 with total page 1496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Handbook of Verification Procedures written by Dr. Frank Barnaby and published by Springer. This book was released on 1990-06-18 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of how, in practice, the effective verification of various arms control treaties - including a comprehensive test ban treaty, conventional forces reductions, a fissile material cut-off and a freeze on the development and production of nuclear weapons - can be achieved.

Download or read book Modern Global Seismology written by Thorne Lay and published by Elsevier. This book was released on 1995-05-18 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as an introduction to the field, Modern Global Seismology is a complete, self-contained primer on seismology. It features extensive coverage of all related aspects, from observational data through prediction, emphasizing the fundamental theories and physics governing seismic waves--both natural and anthropogenic. Based on thoroughly class-tested material, the text provides a unique perspective on the earths large-scale internal structure and dynamic processes, particularly earthquake sources, and on the application of theory to the dynamic processes of the earths upper skin. Authored by two experts in the field of geophysics. this insightful text is designed for the first-year graduate course in seismology. Exploration seismologists will also find it an invaluable resource on topics such as elastic-wave propagation, seismicinstrumentation, and seismogram analysis useful in interpreting their high-resolution images of structure for oil and mineral resource exploration. More than 400 illustrations, many from recent research articles, help readers visualize mathematical relationships 49 Boxed Features explain advanced topics Provides readers with the most in-depth presentation of earthquake physics available Contains incisive treatments of seismic waves, waveform evaluation and modeling, and seismotectonics Provides quantitative treatment of earthquake source mechanics Contains numerous examples of modern broadband seismic recordings Fully covers current seismic instruments and networks Demonstrates modern waveform inversion methods Includes extensive references for further reading

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Introduction to Digital Filtering in Geophysics written by O. Kulhánek and published by Elsevier. This book was released on 2012-12-02 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Digital Filtering in Geophysics

Download or read book Monitoring Underground Nuclear Explosions written by Ola Dahlman and published by Elsevier. This book was released on 2016-10-27 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring Underground Nuclear Explosions focuses on the checking of underground nuclear explosions, including the Comprehensive Test Ban Treaty (CTB), seismological stations, earthquake-source models, and seismicity. The publication first elaborates on test-ban negotiations, nuclear explosions, seismological background, and explosions and earthquakes as seismic sources. Concerns cover comparison between explosion-source and earthquake-source models, theoretical calculation of seismic waves, earth structure, seismicity, nuclear test activities, bomb designs, and disarmament treaties. The manuscript then tackles seismological stations, detection, event definition and location, depth estimation, and identification. Topics include multistation discriminants, statistical aspects, long-period and short-period signals, near distances, location by a network of stations, international data exchange, station detection capabilities, and station networks. The book examines the monitoring of a comprehensive test-ban treaty, nonseismological identification, evasion, peaceful nuclear explosions, and yield estimation. The text is a dependable reference for researchers interested in the monitoring of underground nuclear explosions.

Download or read book Geophysics Field Measurements written by and published by Academic Press. This book was released on 1987-09-24 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geophysics Field Measurements