IASPEI - Picture Gallery

IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy
(S) - IASPEI - International Association of Seismology and Physics of the Earth's
Interior
JSS003 Poster presentation 1886
New seismic system for acquisition and analysis in Israel
Dr. Vladimir Pinsky
Seismology Geophysical Institute of Israel POB 182, Lod, Isra
Andrei Polozov, David Kadush, Veronic Avirav, Abraham Hofstetter,
For updated seismic monitoring and preparedness to future large earthquakes as well as for improved
waveform data exchange with other seismic systems in the world and for the progressive earthquake
related research Geophysical Institute of Israel (GII) now carries out modernization of Israel Seismic
Network (ISN) and the ISN acquisition system (ISNAS) in the frame of the contract between the GII and
Nanometrics Co. The ISNAS is based on satellite and radio real-time communication and close-to-real
time automatic waveform analysis. The project consists of four stages: 1) Transformation of the triggerbased
acquisition to the continuous waveform recording; 2) Replacement of the part of the existing
stations to the new ones; 3) Changing of the seismic network configuration; 4) Modernization of the
existing software for processing the continuous data. The ISNAS structure comprises four networks: 1)
Site network (between data loggers and satellite transmitter); 2) Network between the stations and the
data center hub; 3) Data center acquisition network, including communication between the hub and the
servers and connection between the main and the backup center. 4) Analysis network internal GII
network. The ISNAS includes several types of acquisition: radio-link, new satellite, broad-band frame
relay communications based on the SeedLink and Naqs servers. The system includes new algorithms of
real-time detection, picking and location as a part of the JSTAR analysis system, developed in GII.
Keywords: real time, satellite communication, seismic acquisition