%0 Report %1 kvaerna_etal:2007 %A Kværna, Tormod %A Gibbons, Steven J. %A Ringdal, Frode %A Harris, David B. %C Kjeller, Norway %D 2007 %K geophysics seismology %N DOE/NA/99517-1 %R 10.2172/898306 %T Integrated seismic event detection and location by advanced array processing %U http://dx.doi.org/10.2172/898306 %X The principal objective of this two-year study is to develop and test a new advanced, automatic approach to seismic detection/location using array processing. We address a strategy to obtain significantly improved precision in the location of low-magnitude events compared with current fully-automatic approaches, combined with a low false alarm rate. We have developed and evaluated a prototype automatic system which uses as a basis regional array processing with fixed, carefully calibrated, site-specific parameters in conjuction with improved automatic phase onset time estimation. We have in parallel developed tools for Matched Field Processing for optimized detection and source-region identification of seismic signals. This narrow-band procedure aims to mitigate some of the causes of difficulty encountered using the standard array processing system, specifically complicated source-time histories of seismic events and shortcomings in the plane-wave approximation for seismic phase arrivals at regional arrays.

@techreport{kvaerna_etal:2007, abstract = {The principal objective of this two-year study is to develop and test a new advanced, automatic approach to seismic detection/location using array processing. We address a strategy to obtain significantly improved precision in the location of low-magnitude events compared with current fully-automatic approaches, combined with a low false alarm rate. We have developed and evaluated a prototype automatic system which uses as a basis regional array processing with fixed, carefully calibrated, site-specific parameters in conjuction with improved automatic phase onset time estimation. We have in parallel developed tools for Matched Field Processing for optimized detection and source-region identification of seismic signals. This narrow-band procedure aims to mitigate some of the causes of difficulty encountered using the standard array processing system, specifically complicated source-time histories of seismic events and shortcomings in the plane-wave approximation for seismic phase arrivals at regional arrays.}, added-at = {2012-09-01T13:08:21.000+0200}, address = {Kjeller, Norway}, author = {Kv{\ae}rna, Tormod and Gibbons, Steven J. and Ringdal, Frode and Harris, David B.}, biburl = {https://www.bibsonomy.org/bibtex/2c515c211c33d33c0bc50d1f383a6a9fc/nilsma}, doi = {10.2172/898306}, institution = {NORSAR}, interhash = {9170b8566d98a47dac5445a5600bc2f5}, intrahash = {c515c211c33d33c0bc50d1f383a6a9fc}, keywords = {geophysics seismology}, number = {DOE/NA/99517-1}, timestamp = {2021-02-09T13:21:14.000+0100}, title = {Integrated seismic event detection and location by advanced array processing}, url = {http://dx.doi.org/10.2172/898306}, year = 2007 }