Accession Number : ADP204498

Title :   A Geological and Geophysical Information System for the Middle East and North Africa,

Corporate Author : CORNELL UNIV ITHACA NY INST FOR THE STUDY OF THE CONTINENTS

Personal Author(s) : Seber, Dogan ; Sandvol, Eric ; Vallve, Marisa ; Barazangi, Muawia

PDF Url : ADP204498

Report Date : 14 AUG 1995

Pagination or Media Count : 9

Abstract : We are collecting and organizing all available seismological, geophysical, topographical, geological, and satellite imagery datasets for the Middle East and North Africa into a digital information system that is quickly accessible via the Internet from Cornell and can be utilized in modeling and display programs. We are focusing our efforts on the Middle East and North Africa and locating and digitizing published crustal thickness, depth to basement, and crustal velocity and density structures, primarily as interpreted from seismic refraction and reflection, gravity and drill hole datasets. We have digitized some gravity maps and key geologic features for the Middle East. All data are being stored in ArcInfo Geographic Information System (GIS), the most widely used full-featured GIS. We are also maintaining a comprehensive bibliography of all the relevant references in a computer database. We are also developing new tools to extract and visualize the digitized databases. These new analysis tools will allow one easily to find and display any data and information in our database. The databases being developed are essential for a successful global monitoring system, such as the International Data Center (IDC) and the GSETT-3 experiment. The final products, for example, will significantly contribute to accurate locations of seismic events, understanding high-frequency wave propagation at regional distances, and better characterization and calibration of seismic events in the region.

Descriptors :   *DATA PROCESSING, *SEISMIC DETECTION, *SEISMIC WAVES, *ARMS CONTROL, *NUCLEAR EXPLOSION DETECTION, *GEOPHYSICS, DATA BASES, SYMPOSIA, INFORMATION SYSTEMS, MONITORING, UNDERGROUND EXPLOSIONS, NUCLEAR EXPLOSION TESTING, MINING ENGINEERING, WAVE PROPAGATION, EARTH CRUST, GRAVITY, REFRACTION, SEISMIC DISCRIMINATION, TREATIES, SEISMIC VELOCITY, GEOGRAPHY, NORTH AFRICA, TECTONICS, EAST AFRICA, GEOGRAPHICAL INFORMATION SYSTEMS.

Subject Categories : Government and Political Science
      Seismology
      Computer Programming and Software
      Seismic Detection and Detectors
      Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE