FORTY YEARS NATIONAL OPERATIVE TELEMETRIC SYSTEM FOR SEISMOLOGICAL INFORMATION
Bulgarian Geophysical Journal, 2019, Vol. 42, DOI: https://doi.org/10.34975/bgj-2019.42.8
L. Christoskov, L. Dimitrova, D. Solakov, S. Simeonova
National Operative Telemetric System for Seismological Information (NOTSSI) is operating since 1980. At the beginning, the real-time data transfer from the stations to the data center was organized through analog telephone lines and earthquake parameters were evaluated manually. In 2006 both the seismological network and the data center were upgraded with state-of-the-art digital equipment and automatic data processing was organized. More than 12 TB processed and raw data are archived during the last 12 years in PASSCAL, mini SEED continues data formats and in event oriented CSS format. The data completeness exceeds 99% and the rare loss of data is mainly due to communication outages. The maintenance of the network and the data center is organized in such a manner that the upgrade of the equipment and the software updates do not affect the performance of the Operating Center. During the last 12 years the number of seismic stations increased significantly and at the end of 2019 it is 40. Currently the seismic center is upgraded with software for acquisition and automatic data processing SeisComP3 that is widely used in seismological community and data centers.
National Operative Telemetric System for Seismological Information, Bulgarian Seismological Network, Seismic Data Centre, SeisComP3
The presented paper is supported by the Contract No D01-282/17.12.2019 Project “National Geoinformation Center (NGIC)” financed by the National Roadmap for Scientific Infrastructure 2017-2023
How to cite:
Christoskov, L., Dimitrova, L., Solakov, D., & Simeonova, S. (2020). FORTY YEARS NATIONAL OPERATIVE TELEMETRIC SYSTEM FOR SEISMOLOGICAL INFORMATION. Bulgarian Geophysical Journal, Vol. 42, p. 83-94. https://doi.org/10.34975/BGJ-2019.42.8