Investigation of Temporal and Spatial Distribution of Noise Sources in KRDAE Seismic Network
Abstract
Developing technologies lead to a increase in the number of seismic networks. Data from the seismic networks served at cross purposes. First priority is to determine the location and the origin time of the seismic events. Defining the magnitude and the source parameters, investigating the Earths interior and earthquake hazard mitigation are the other purposes. Data contain unwanted signals called "noise". Backround seismic noise are the signals which are generated by the interactions of natural or annatural events with the earth.
Boğaziçi University, Kandilli Observatory and Earthquake Research Institute (KOERI) is running Turkey Earthquake Network since 1976 and recording local, regional and teleseismic earthquakes. In station site selection, considered criteria are exurb areas away from noise located in the solid foundation. Before the installation 24 hour data are recorded in the site and a noise analysis are performed in order to verify the noise level of the site. Previously installed station surrounding are opened for settlement and the change in the electrical components used in the sytem add extra noise to the recorded data thus detectable magnitude threshold increased in time. The aim of the study is to analyze the performance of the stations by verifing the electronic noise in the loudest stations with noise analysis. During the study PQLX and the brand new local code based on Matlab will be both performed and the comparative advantages will be discussed.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.S23C0648A
- Keywords:
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- 7212 Earthquake ground motions and engineering seismology;
- SEISMOLOGY;
- 7219 Seismic monitoring and test-ban treaty verification;
- SEISMOLOGY;
- 7255 Surface waves and free oscillations;
- SEISMOLOGY;
- 7270 Tomography;
- SEISMOLOGY