Institute of seismology
Seismic network of Institute
of seismology Acaemy of sciences of Uzbekistan includes 23 items of registration.
The majority of devices with photo-registration.
Since 2003 the updating and modernization of system of registration of earthquakes was begun.
The first step was made through the experts China Seismological Bureau. On grant a basis to Institute of seismology the government of China gave 5 digital seismic stations - 2 EDAS-24 and 3 EDAS-3. They were established around of Tashkents for the control of a seismic situation around of capital of Uzbekistan. Care of the data the radio telemetry is used.
In 2006 within the framework of the grant STCU #3394 the equipment was acquired and the installation 14 seismic stations on all territory of
Uzbekistan is finished. Structure of a complete set includes four-channel 16-bit datalogger "Webtronics"(http://psn.quake.net), GPS-receiver "Garmin",
4 photo-electric solar panels, controller of a charge of accumulators, UPS "NOVA 600-AVR" and industrial low power computer EBS-1363.
The system is capable to work in a non-volatile mode vaguely long time for registration of strong earthquakes, the channel of registration with increase in 25 times less than usual channels is used. For registration the program WinSDR, allowing in real time is used to filter a signal. A format of event files - SAC, PSN or MiniSEED.
Transfer of the data.
Maintenance of data transmission on a FTP-server of service of urgent
reports is made by means of a network of the Project
UzSciNet , as in all regional centers of Uzbekistan there is a unit
of access. A number of stations (Andijan, Fergana, Namangan, samarkand,
Khiva, Karshy) is connected to the allocated Internet channels. Event
files are automatically sent on FTP- server, located in a building Tashkent
seismic observatory. At other seismic stations after operation of the
trigger event files are sent on server on dial-up connection. The program
WinQuake is applied to summary processing.
|Seismic network circuit