| Knowledge-Based Visualization of Multidisciplinary Databases for IDC interactive Analysis: Region Specific and Global |
15 JUL 1998 |
46 pages |
| Authors:
Muawia Barazangi; David Steer; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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 | A prototype Geographical Information System (GIS) with global coverage was developed at Cornell University in order to assist the Prototype International Data Center (PIDC) in merging the results of the four monitoring technologies (seismic, hydroacoustic, infrasound, and radionuclide) and to assist in ongoing calibration and location studies during the implementation of the Comprehensive Test Ban Treaty (CTBT). This system is intended to expand the ... |
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| Digital Database Development and Seismic Characterization and Calibration for the Middle East and North Africa |
24 FEB 1998 |
232 pages |
| Authors:
Muawia Barazangi; Dogan Seber; Eric Sandvol; David Steer; Marisa Vallve; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| It is essential for the CTBT monitoring efforts that multidisciplinary information on any given region be readily available and accessible in a digital, on-line format via electronic networks for use by concerned researchers and decision makers. We collected and organized available seismological, geophysical, and geological data sets for the Middle East and North Africa into a comprehensive Geographic Information System (GIS). In addition, we produced original results, such as crustal ... |
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| Digital Database Development and Seismic Characterization and Calibration for the Middle East and North Africa |
31 JUL 96 |
81 pages |
| Authors:
Muawia Barazangi; Dogan Seber; Eric Sandvol; Marisa Vallve; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| It is essential for the CTBT monitoring efforts that multidisciplinary information on any given region is readily available and accessible in a digital, on-line format via electronic networks for use by concerned researchers and decision makers. Our objective is to collect and organize all available seismological, geophysical, and geological data sets for the Middle East and North Africa into a comprehensive Geographic Information System (GIS). In addition, we are producing ... |
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| A Geological and Geophysical Information System for Eurasia, the Middle East and North Africa. Digital Database Development for the Middle East and North Africa |
30 NOV 95 |
108 pages |
| Authors:
Muawia Barazangi; Dogan Seber; Marisa Vallve; Bryan Isacks; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| As the target date (end of 1996) for the completion of multilateral comprehensive nuclear test ban treaty approaches, it is essential for the monitoring efforts that multidisciplinary information on any given region is readily available and accessible in a digital, on-line format via electronic networks for use by concerned researchers and decision makers. Our objective has been to collect and organize all available seismological, geophysical, and geological datasets for the ... |
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| A Geological and Geophysical Information System for Eurasia, the Middle East and North Africa. Digital Database |
15 MAR 95 |
96 pages |
| Authors:
Muawia Barazangi; Dogan Seber; Marisa Vallve; Eric Fielding; Bryan Isacks; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| With the anticipated completion of multilateral comprehensive nuclear test ban and nonproliferation treaties in the near future, it is essential for the monitoring efforts that multidisciplinary information on any given region is readily available and accessible in a digital, on-line format via electronic networks for use by concerned re-searchers and decision makers. Our objective is to collect and organize all available sissmological, geophysical, and geological datasets for the Middle East ... |
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| A Geological and Geophysical Information System for Eurasia |
15 DEC 93 |
39 pages |
| Authors:
Eric J. Fielding; Muawia Barazangi; Bryan L. Isacks; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| Topography and heterogeneous crustal structure have major effects on the propagation of regional seismic phases. We are collecting topographical, geological, and geophysical datasets for Eurasia into an information system that can be accessed via Internet connections. Now available are digital topography, satellite imagery, and data on sedimentary basins and crustal structure thicknesses. New datasets for Eurasia include maps of depth to Moho beneath Europe and Scandinavia. We have created regularly ... |
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| A Geological and Geophysical Information System for Eurasia |
29 JUN 93 |
16 pages |
| Authors:
Eric J. Fielding; Muawia Barazangi; Bryan L. Isacks; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| Topography and heterogeneous crustal structure have major effects on the propagation of regional seismic phases. We are collecting topographical, geological, and geophysical datasets for Eurasia into an information system that can be accessed via Internet connections. Now available are digital topography, satellite imagery, and data on sedimentary basins and crustal structure thicknesses. We are expanding the scope of our information system to include data on the Middle East and North ... |
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| A Geological and Geophysical Information System for Eurasia |
15 DEC 92 |
21 pages |
| Authors:
Eric J. Fielding; Bryan L. Isacks; Muawia Barazangi; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| Topography and crustal structure variations have significant effects on the propagation of regional seismic phases. Geological and geophysical data are also useful for other aspects of the problems of nonproliferation, verification and yield estimation. We are collecting datasets for Eurasia, China, the Middle East and North Africa. Available now are digital databases of topography, crustal thicknesses, and sedimentary basin depths. Work continues on collecting and organizing available topographical, geological and ... |
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| A Geological and Geophysical Information System for Eurasia |
15 JUL 92 |
18 pages |
| Authors:
Eric J. Fielding; Bryan L. Isacks; Muawia Barazangi; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| The topography and crustal structure variations along propagation paths and at the source and receiver sites are crucial information to understand the excitation and propagation of regional seismic phases and other aspects of the problems of nonproliferation, verification and yield estimation. Work in progress has realized useful datasets for Eurasia, including a set of maps of crustal thicknesses and sedimentary basin depths. Our work collecting and organizing available topographical, geological ... |
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| Imaging the Morphotectonic Setting of Seismic Events and Their Propagation Paths: Methodology and Comparative Studies |
20 MAR 91 |
84 pages |
| Authors:
Bryan L. Isacks; Muawia Barazangi; Eric J. Fielding; Richard W. Allmendinger; CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS
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| Geomorphic interpretation of geologic features using DEMs (Digital Elevation Models) and satellite imagery can yield useful information on long- term fault activity in the absence of detailed ground mapping. Mapping of probable active faults in Central Asia and estimation of the type of offset from DEMs is combined with digitizations of published fault maps, Landsat TM and SPOT imagery, and earthquake catalogs in a Geographic Information System to provide information ... |
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| Global Investigation of Seismic Wave Propagation on a Regional Scale |
APR 1981 |
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| Authors:
Jack E. Oliver; Bryan L. Isacks; Muawia Barazangi; CORNELL UNIV ITHACA N Y DEPT OF GEOLOGICAL SCIENCES
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 | Th Middle East study is focused on the Turkish and Iranian plateaus and the surrounding regions. Sn amplitude variations are very striking in these areas. Efficient Sn propagation is observed across a major part of the Turkish and Iranian plateaus. However, Sn is strongly attenuated in the northernmost part of the plateaus south of the Black and Caspian Seas, and in the area between these two areas. These regions are ... |
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| Excitation of T Phases from Shallow and Intermediate-Depth Earthquakes in the Sourhten Vanuatu (New Hebrides) Arc |
1975 |
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| Authors:
Hafidh Ghalib; Muawia Barazangi; Bryan Isacks; CORNELL UNIV ITHACA NY DEPT OF GEOLOGICAL SCIENCES
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| In this paper, we present observations on the excitation of T phases from shallow and intermediate-depth earthquakes located along the southern Vanuatu (New Hebrides) Island arc and recorded at short-period, vertical- component seismic stations on the Loyalty Islands of Lifou and Mare. Most of these earthquakes are part of the northeasterly dipping Benioff zone that defines the descending Australian plate in the upper 300 km of the mantle beneath the ... |
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