Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring

Details Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.s12a0575s&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #S12A-0575

Computer Science

Sound

7200 Seismology, 7219 Nuclear Explosion Seismology

Scientific paper

Within the next four years, IRIS databases will receive from the University of Wyoming and GEON recordings from nine ultra-long range Deep Seismic Sounding (DSS) projects conducted between 1970-1989 in the former Soviet Union: QUARTZ, CRATON, KIMBERLITE, METEORITE, RIFT, RUBY, BATHOLIT, BAZALT, and AGATE. Jointly sponsored by the Department of Defense and National Science Foundation, this effort will bring the unique recordings of 22 Peaceful Nuclear Explosions (PNEs) and hundreds of crustal-scale chemical shots to the broad seismological and monitoring research communities. A grid of reversed PNE profiles (plus fan recording for RUBY) covers the East European Platform, the Ural Mountains, the West Siberian Platform, the Siberian craton, and the Baikal Rift. Dense, 3-component, short-period recordings along these profiles provide a valuable source of seismic information for seismic calibration of these vast aseismic regions. DSS recordings offer unique opportunities to study propagation effects of body waves and regional seismic phases, to examine their correlation with geologic and tectonic features, to develop unusually well constrained models of the structure of the crust and upper mantle to 600-700 km depth, and to explore the variability of explosion discriminants such as spectral ratios of P- and S-waves. Though the data principally concern properties of the crust and upper mantle, some of the profiles also show strong reflections from the core-mantle boundary. We summarize the recent findings from the analysis of PNE datasets in Northern Eurasia. These results include (1) unusually detailed velocity and attenuation structure of the crust and uppermost mantle, (2) characterization of crustal attenuation through coda measurements, (3) constraints on seismic scattering from within the crust and uppermost mantle, (4) detailed imaging of the crustal basement using receiver functions, (5) continuous observations of the regional phases from the PNEs within 0-2000 km ranges, and (6) direct P-wave travel-time mapping of Northern Eurasia and building the source-specific station corrections (SSSC). With further, broad analysis facilitated by the newly available database of DSS waveforms, new insights will be gained both in understanding of the detailed structure of the upper mantle and in the development of regional seismic discriminants.

Affiliated with

Also associated with

No associations

Rating

Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peaceful Nuclear Explosion Datasets for Seismic Research and Nuclear Test Monitoring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1239895