RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES
Of particular interest to the needs of Project VELAUNIFORM are the following: a study of the radiation patterns of surface waves from underground nuclear explosions and small magnitude earthquakes, wherein it was determined that the radiation patterns from explosions in tuff and alluvium, but not in...
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ftdtic:AD0607946 2023-05-15T15:08:58+02:00 RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES Alsop, Leonard E LAMONT GEOLOGICAL OBSERVATORY PALISADES NY 1964-07-31 text/html http://www.dtic.mil/docs/citations/AD0607946 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0607946 en eng http://www.dtic.mil/docs/citations/AD0607946 Approved for public release; distribution is unlimited. DTIC AND NTIS Nuclear Explosions and Devices(non-military) *NUCLEAR EXPLOSIONS *SEISMIC WAVES DATA PROCESSING DETECTION DIGITAL COMPUTERS FOURIER ANALYSIS IDENTIFICATION MAPPING SEISMOGRAPHS SEISMOLOGY SOURCES SPECTROGRAPHY UNDERGROUND EXPLOSIONS VELOCITY Text 1964 ftdtic 2016-02-24T09:54:26Z Of particular interest to the needs of Project VELAUNIFORM are the following: a study of the radiation patterns of surface waves from underground nuclear explosions and small magnitude earthquakes, wherein it was determined that the radiation patterns from explosions in tuff and alluvium, but not in granite, could be interpreted as arising from an explosive force acting as a step function in time; a study of the relative excitation of surface waves by earthquakes and underground explosions, which yielded the result that most but not all of the earthquakes studied generated surface waves 5 to 10 times greater than the maximum observed for explosions of the same Richter magnitude; an almost complete summary of Rayleigh wave phase and group velocities for various regions of the world; a program of epicenter relocation carried out so far for the South Pacific Ocean, the Arctic north of 60 degrees N, the Gulf of Aden, Red Sea, and Arabian Sea, the African Rift Zone, and the Central Indian Ocean, which showed that in these places at least large earthquakes are confined to much smaller regions than previously thought; successful utilization of displacement transducers with long period seismometers. Text Arctic Defense Technical Information Center: DTIC Technical Reports database Arctic Indian Pacific |
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Defense Technical Information Center: DTIC Technical Reports database |
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English |
topic |
Nuclear Explosions and Devices(non-military) *NUCLEAR EXPLOSIONS *SEISMIC WAVES DATA PROCESSING DETECTION DIGITAL COMPUTERS FOURIER ANALYSIS IDENTIFICATION MAPPING SEISMOGRAPHS SEISMOLOGY SOURCES SPECTROGRAPHY UNDERGROUND EXPLOSIONS VELOCITY |
spellingShingle |
Nuclear Explosions and Devices(non-military) *NUCLEAR EXPLOSIONS *SEISMIC WAVES DATA PROCESSING DETECTION DIGITAL COMPUTERS FOURIER ANALYSIS IDENTIFICATION MAPPING SEISMOGRAPHS SEISMOLOGY SOURCES SPECTROGRAPHY UNDERGROUND EXPLOSIONS VELOCITY Alsop, Leonard E RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
topic_facet |
Nuclear Explosions and Devices(non-military) *NUCLEAR EXPLOSIONS *SEISMIC WAVES DATA PROCESSING DETECTION DIGITAL COMPUTERS FOURIER ANALYSIS IDENTIFICATION MAPPING SEISMOGRAPHS SEISMOLOGY SOURCES SPECTROGRAPHY UNDERGROUND EXPLOSIONS VELOCITY |
description |
Of particular interest to the needs of Project VELAUNIFORM are the following: a study of the radiation patterns of surface waves from underground nuclear explosions and small magnitude earthquakes, wherein it was determined that the radiation patterns from explosions in tuff and alluvium, but not in granite, could be interpreted as arising from an explosive force acting as a step function in time; a study of the relative excitation of surface waves by earthquakes and underground explosions, which yielded the result that most but not all of the earthquakes studied generated surface waves 5 to 10 times greater than the maximum observed for explosions of the same Richter magnitude; an almost complete summary of Rayleigh wave phase and group velocities for various regions of the world; a program of epicenter relocation carried out so far for the South Pacific Ocean, the Arctic north of 60 degrees N, the Gulf of Aden, Red Sea, and Arabian Sea, the African Rift Zone, and the Central Indian Ocean, which showed that in these places at least large earthquakes are confined to much smaller regions than previously thought; successful utilization of displacement transducers with long period seismometers. |
author2 |
LAMONT GEOLOGICAL OBSERVATORY PALISADES NY |
format |
Text |
author |
Alsop, Leonard E |
author_facet |
Alsop, Leonard E |
author_sort |
Alsop, Leonard E |
title |
RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
title_short |
RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
title_full |
RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
title_fullStr |
RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
title_full_unstemmed |
RESEARCH DIRECTED TOWARD THE USE OF LONG AND INTERMEDIATE PERIOD SEISMIC WAVES FOR THE IDENTIFICATION OF SEISMIC SOURCES |
title_sort |
research directed toward the use of long and intermediate period seismic waves for the identification of seismic sources |
publishDate |
1964 |
url |
http://www.dtic.mil/docs/citations/AD0607946 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0607946 |
geographic |
Arctic Indian Pacific |
geographic_facet |
Arctic Indian Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0607946 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766340231627276288 |