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Book Body Wave Magnitudes of Some Underground Nuclear Explosions at the Nevada USA and Shagan River USSR Test Sites

Download or read book Body Wave Magnitudes of Some Underground Nuclear Explosions at the Nevada USA and Shagan River USSR Test Sites written by R. C. Lilwall and published by . This book was released on 1988 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Yields of Underground Nuclear Explosions at Azgir and Shagan River USSR and Implications for Identifying Decoupled Nuclear Testing in Salt

Download or read book Yields of Underground Nuclear Explosions at Azgir and Shagan River USSR and Implications for Identifying Decoupled Nuclear Testing in Salt written by and published by . This book was released on 1991 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bodywave magnitudes, mb, are recomputed using station corrections for all known Soviet underground nuclear explosions at Shagan River and Azgir. The mb values for explosions of announced yield, Y, in various parts of the world in either hard rock or below the water table were normalized to the SW part of the Shagan River testing area using previously published values of t* and mb bias. The resulting relationship, mb = 4.48 + 0.79 logY, which includes yields published by Bocharov et al. (1989) for Shagan River, differs very little from a regression that does not include those data. Using magnitudes determined from Lg at NORSAR as a standard, the Shagan River site is divided into three subareas. Yields calculated from these revised mb values and from m(Lg) are much more consistent for the same explosion; each agrees closely with the yields published by Bocharov et al. for large explosions in 1971 and 1972 in the NE and SW parts of the testing area. Yields calculated by averaging determinations from Lg and body waves for 66 explosions have a high precision at 95% confidence (mean value 1. 14) for Y> 10 kt. The explosion of 23 July 1973 of Y = 193 kt is clearly the largest underground explosion at Shagan River. The newly calculated values provide strong evidence of clustering in the distribution of yields of Soviet tests. In a special study yields of Soviet nuclear explosions, nuclear tests in salt, decoupling, evasion.

Book Forensic Seismology and Nuclear Test Bans

Download or read book Forensic Seismology and Nuclear Test Bans written by Alan Douglas and published by Cambridge University Press. This book was released on 2013-03-14 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Springing from 50 years' experience in forensic seismology research, this book charts the development of seismic data analysis.

Book Monitoring the Comprehensive Nuclear Test Ban Treaty

Download or read book Monitoring the Comprehensive Nuclear Test Ban Treaty written by Frode Ringdal and published by Springer Science & Business Media. This book was released on 2001-04 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: In September 1996, the United Nations General Assembly adopted the Comprehensive 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 centre (IDC), and on-site inspections, to verify compliance. This volume contains research papers focusing on seismic ecent location in the CTBT context. The on-site inspection protocol of the treaty specifies a search area not to exceed 1000 square km. Much of the current research effort is therefore directed towards refining the accuracy of event location by including allowances for three-dimensional structure within the Earth. The aim is that the true location of each event will lie within the specified source zone regarding postulated location. The papers in this volume cover many aspects of seismic event location, including the development of algorithms suitable for use with three-dimensional models, allowances for regional structure, use of calibration events and source-specific station corrections. They provide a broad overview of the current international effort to improve seismic event location accuracy, and the editors hope that it will stimulate increased interest and further advances in this important field.

Book Body Wave Magnitudes and Locations of Underground Nuclear Explosions at the Nevada Test Site 1971 1980

Download or read book Body Wave Magnitudes and Locations of Underground Nuclear Explosions at the Nevada Test Site 1971 1980 written by Peter David Marshall and published by . This book was released on 1986 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monitoring the Comprehensive Nuclear Test Ban Treaty Source Location

Download or read book Monitoring the Comprehensive Nuclear Test Ban Treaty Source Location written by Frode Ringdal and published by Birkhäuser. This book was released on 2013-03-07 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: In September 1996, the United Nations General Assembly adopted the Comprehensive 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 centre (IDC), and on-site inspections, to verify compliance. This volume contains research papers focusing on seismic ecent location in the CTBT context. The on-site inspection protocol of the treaty specifies a search area not to exceed 1000 square km. Much of the current research effort is therefore directed towards refining the accuracy of event location by including allowances for three-dimensional structure within the Earth. The aim is that the true location of each event will lie within the specified source zone regarding postulated location. The papers in this volume cover many aspects of seismic event location, including the development of algorithms suitable for use with three-dimensional models, allowances for regional structure, use of calibration events and source-specific station corrections. They provide a broad overview of the current international effort to improve seismic event location accuracy, and the editors hope that it will stimulate increased interest and further advances in this important field.

Book Monitoring Underground Nuclear Explosions

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.

Book Spying on the Bomb American Nuclear Intelligence from Nazi Germany to Iran and North Korea

Download or read book Spying on the Bomb American Nuclear Intelligence from Nazi Germany to Iran and North Korea written by Jeffrey T. Richelson and published by W. W. Norton & Company. This book was released on 2007-09-17 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spying on the Bomb is an "engrossing" (Wall Street Journal) global history of the American-led effort to spy on every nation with nuclear ambitions. A global history of U.S. nuclear espionage from its World War II origins to twenty-first century threats from rogue states. For more than sixty years, the United States has monitored friends and foes who seek to develop the ultimate weapon. Since 1952 the nuclear club has grown to at least nine nations, while others are making serious attempts to join. Each chapter of Spying on the Bomb chronologically focuses on the nuclear activities of one or more countries, intermingling what the United States believed was happening with accounts of what actually occurred in each country's laboratories, test sites, and decision-making councils. Jeffrey T. Richelson weaves recently declassified documents into his interviews with the scientists and spies involved in the nuclear espionage. Spying on the Bomb reveals new information about U.S. intelligence work on the Soviet/Russian, French, Chinese, Indian, Israeli, and South African nuclear programs; on the attempts to solve the mysterious Vela Incident; and on current efforts to uncover the nuclear secrets of Iran and North Korea. The book also includes spy satellite photographs never before extracted from the national archives.

Book The Detection of Nuclear Explosions by Seismic Means

Download or read book The Detection of Nuclear Explosions by Seismic Means written by Norman A. Haskell and published by . This book was released on 1960 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Source Depth of Burial Experiment at Shagan River Kazakstan

Download or read book The Source Depth of Burial Experiment at Shagan River Kazakstan written by and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The seismic field experimentation team at Los Alamos National Laboratory collaborated with Lawrence Livermore, the Defense Special Weapons Agency (DSWA) and the National Nuclear Center of the Republic of Kazakstan to record the Source Depth of Burial Experiment during the summer of 1997. A series of three 25 ton explosions at depths of 50, 300 and 550 meters along with associated 50 to 100 kg Green's function explosions and a 5 ton proof of concept explosion were instrumented at near source (0.1 to 20 km) and regional distances (100 to 1,100 km) using portable seismic data acquisition equipment. The near source data represent the first US recordings of seismic data at the former Soviet Union's Semipalatinsk nuclear test site. The main objective of the Depth of Burial Experiment was to test whether source depth can help identify underground nuclear explosions from observations at distance ranges of 100--1,000 km. A secondary objective was to help calibrate the Kazakstan seismic network, especially the primary IMS station at Makanchi and the auxiliary IMS stations at Kurchatov and Aktyubinsk. Near-source records show the 50 m deep explosion generated much higher amplitude surface (R{sub g}) waves than did either of the deeper explosions. Impulse P-wave arrivals dominated the traces from the 300 and 550 meter deep explosions. P-wave amplitudes, 10--20 Hz, appeared to be a stronger function of source than of path or site. Apparent P velocity was highly path dependent, with higher velocities parallel to the local, NW-SE fabric of the geologic structure. Empirical Green's function results for the 25 ton shots show increasing corner frequency with depth, consistent with predictions of the Mueller-Murphy source model.

Book Parliamentary Debates Hansard

Download or read book Parliamentary Debates Hansard written by Great Britain. Parliament. House of Commons and published by . This book was released on 1990 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt: