07 Oct 2016
AlpArray in Austria and Slovakia: technical realization, site description and noise characterization
Department of Meteorology and Geophysics, University of Vienna, Althanstraße 14, UZA 2, 1090 Vienna, Austria
Petr Kolínský
Department of Meteorology and Geophysics, University of Vienna, Althanstraße 14, UZA 2, 1090 Vienna, Austria
Gidera Gröschl
Department of Meteorology and Geophysics, University of Vienna, Althanstraße 14, UZA 2, 1090 Vienna, Austria
Götz Bokelmann
Department of Meteorology and Geophysics, University of Vienna, Althanstraße 14, UZA 2, 1090 Vienna, Austria
the AlpArray Working Group
http://www.alparray.ethz.ch
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The work demonstrates how seismic networks installed in the Alps can be used for country-wide real-time monitoring of rockslide activity. We suggest simple methods that allow us to detect, locate, and characterize rockslides using the seismic signals they generate. We developed an automatic procedure to locate rockslides with kilometer accuracy over hundreds of kilometers of distance. Our findings highlight how seismic networks can help us to understand the triggering of rockslides.
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F. Fuchs, P. Kolínský, G. Gröschl, M.-T. Apoloner, E. Qorbani, F. Schneider, and G. Bokelmann
Adv. Geosci., 41, 25–33, https://doi.org/10.5194/adgeo-41-25-2015, https://doi.org/10.5194/adgeo-41-25-2015, 2015
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Site selection is a crucial part of the work flow for installing seismic stations. Here, we report the preparations for a countrywide temporary seismic network in Austria. We present probabilistic power spectral density analysis to assess noise conditions at selected sites and show exemplary seismic events that were recorded by the preliminary network by the end of July 2015.
I. Bianchi, M. Anselmi, M. T. Apoloner, E. Qorbani, K. Gribovski, and G. Bokelmann
Adv. Geosci., 41, 11–23, https://doi.org/10.5194/adgeo-41-11-2015, https://doi.org/10.5194/adgeo-41-11-2015, 2015
M.-T. Apoloner and G. Bokelmann
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For this study we use seismic array data from GERES. It is 220 km to the North West of the Vienna Basin, which - according to literature - is a suitable distance to recover PmP and sPmP phases. We use array processing on recent earthquake data from the Vienna Basin with local magnitudes from 2.1 to 4.2 to search for RDP. At the same time, we do similar processing on synthetic data specially modeled for this application.Comparing with synthetic seismograms we identify PmP and PbP phases.
M.-T. Apoloner, G. Bokelmann, I. Bianchi, E. Brückl, H. Hausmann, S. Mertl, and R. Meurers
Adv. Geosci., 36, 77–80, https://doi.org/10.5194/adgeo-36-77-2014, https://doi.org/10.5194/adgeo-36-77-2014, 2014
A. Gerner and G. Bokelmann
Adv. Geosci., 36, 17–20, https://doi.org/10.5194/adgeo-36-17-2013, https://doi.org/10.5194/adgeo-36-17-2013, 2013
Cited articles
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Bormann, P. and Wielandt, E.: Seismic Signals and Noise, in: New Manual of Seismological Observatory Practice 2 (NMSOP2), edited by: Bormann, P., 1–62, Deutsches GeoForschungsZentrum GFZ, Potsdam, https://doi.org/10.2312/GFZ.NMSOP-2_ch4, 2012.
Forbinger, T.: Recommendations for seismometer deployment and shielding, in: New Manual of Seismological Observatory Practice 2 (NMSOP-2), edited by: Bormann, P., 1–10, Deutsches GeoForschungsZentrum GFZ, Potsdam, https://doi.org/10.2312/GFZ.NMSOP-2_IS_5.4, 2012.
Fuchs, F., Kolínský, P., Gröschl, G., Apoloner, M.-T., Qorbani, E., Schneider, F., and Bokelmann, G.: Site selection for a countrywide temporary network in Austria: noise analysis and preliminary performance, Adv. Geosci., 41, 25–33, https://doi.org/10.5194/adgeo-41-25-2015, 2015.
Gerner, A. and Bokelmann, G.: Instrument self-noise and sensor misalignment, Adv. Geosci., 36, 17–20, https://doi.org/10.5194/adgeo-36-17-2013, 2013.
Hetenyi, G., Molinari, I., Clinton, J., and Kissling, E.: The AlpArray Seismic Network: current status and next steps, Geophysical Research Abstracts, EGU General Assembly 2016, 18, EGU2016–11744–1, 2016.
Kissling, E.: Alpine Post-Collisional Orogeny: topics of debate and possible targets for AlpArray research, Geophysical Research Abstracts, EGU General Assembly 2016, 18, EGU2016–2896, 2016.
Krischer, L., Megies, T., Barsch, R., Beyreuther, M., Lecocq, T., Caudron, C., and Wassermann, J.: ObsPy: a bridge for seismology into the scientific Python ecosystem, Computational Science & Discovery, 8, 014003, https://doi.org/10.1088/1749-4699/8/1/014003, 2015.
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Stepanek, J. and Claypool, D. W.: GPS signal reception under snow cover: A pilot study establishing the potential usefulness of GPS in avalanche search and rescue operations, Wild. Environ. Med., 8, 101–104, https://doi.org/10.1580/1080-6032(1997)008[0101:GSRUSC]2.3.CO;2, 1997.
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Short summary
For comparison and as guideline for future seismic experiments we describe our efforts during the installation of thirty temporary seismic stations in Eastern Austria and Western Slovakia. The stations – deployed in the framework of the AlpArray project – are commonly placed in abandoned or unused cellars or buildings. We describe the technical realization of the deployment and discuss the seismic noise conditions at each site and potential relations to geology or station design.
For comparison and as guideline for future seismic experiments we describe our efforts during...
