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Title: Improved Bayesian Infrasonic Source Localization for regional infrasound

Journal Article · · Geophysical Journal International
DOI:https://doi.org/10.1093/gji/ggv387· OSTI ID:1257997
 [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
+ Show Author Affiliations

The Bayesian Infrasonic Source Localization (BISL) methodology is examined and simplified providing a generalized method of estimating the source location and time for an infrasonic event and the mathematical framework is used therein. The likelihood function describing an infrasonic detection used in BISL has been redefined to include the von Mises distribution developed in directional statistics and propagation-based, physically derived celerity-range and azimuth deviation models. Frameworks for constructing propagation-based celerity-range and azimuth deviation statistics are presented to demonstrate how stochastic propagation modelling methods can be used to improve the precision and accuracy of the posterior probability density function describing the source localization. Infrasonic signals recorded at a number of arrays in the western United States produced by rocket motor detonations at the Utah Test and Training Range are used to demonstrate the application of the new mathematical framework and to quantify the improvement obtained by using the stochastic propagation modelling methods. Moreover, using propagation-based priors, the spatial and temporal confidence bounds of the source decreased by more than 40 per cent in all cases and by as much as 80 per cent in one case. Further, the accuracy of the estimates remained high, keeping the ground truth within the 99 per cent confidence bounds for all cases.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1257997
Report Number(s):
LA-UR-15-24405
Journal Information:
Geophysical Journal International, Vol. 203, Issue 3; ISSN 0956-540X
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

References (22)

Regional monitoring of infrasound events using multiple arrays: application to Utah and Washington State journal October 2008
The F-Detector Revisited: An Improved Strategy for Signal Detection at Seismic and Infrasound Arrays journal February 2009
A framework for estimating stratospheric wind speeds from unknown sources and application to the 2010 December 25 bolide journal July 2013
Development of a robust and automated infrasound event catalogue using the International Monitoring System journal January 2015
Impulse propagation in the nocturnal boundary layer: Analysis of the geometric component journal May 2012
The Buncefield explosion: a benchmark for infrasound analysis across Central Europe journal May 2009
Infrasound scattering from atmospheric anisotropic inhomogeneities journal October 2011
Global morphology of infrasound propagation: GLOBAL MORPHOLOGY OF INFRASOUND PROPAGATION journal November 2003
Infrasonic signature of the 2009 major sudden stratospheric warming journal January 2009
Two decades of array signal processing research: the parametric approach journal July 1996
Infrasound data inversion for atmospheric sounding: Infrasound atmospheric sounding journal May 2012
The Life Cycle of the Northern Hemisphere Sudden Stratospheric Warmings journal July 2004
Using physics-based priors in a Bayesian algorithm to enhance infrasound source location journal October 2013
On using computational aeroacoustics for long-range propagation of infrasounds in realistic atmospheres journal January 2007
Multiple Signal Correlators journal July 1957
A Bayesian framework for infrasound location journal April 2010
The Development of Global Probabilistic Propagation Look-Up Tables for Infrasound Celerity and Back-Azimuth Deviation journal October 2014
Generating regional infrasound celerity-range models using ground-truth information and the implications for event location journal March 2014
Infrasound Observations of Variability During Stratospheric Warmings journal March 1978
Propagation of sonic booms in the thermosphere journal January 1980
Atmospheric absorption in the atmosphere up to 160 km journal March 2004
Explosion localization via infrasound journal November 2009

Cited By (1)

Infrasound signal duration: the effects of propagation distance and waveguide structure journal January 2019

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58 GEOSCIENCES
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