Search Results - "Blom, Philip S"
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Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga
Published in Science (American Association for the Advancement of Science) (01-07-2022)“…The 15 January 2022 climactic eruption of Hunga volcano, Tonga, produced an explosion in the atmosphere of a size that has not been documented in the modern…”
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Deep learning categorization of infrasound array data
Published in The Journal of the Acoustical Society of America (01-10-2022)“…We develop a deep learning-based infrasonic detection and categorization methodology that uses convolutional neural networks with self-attention layers to…”
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3
Bayesian characterization of explosive sources using infrasonic signals
Published in Geophysical journal international (01-10-2018)“…In this paper, a Bayesian approach is applied to the estimation of source characteristics for above ground explosive events using infrasonic observations at…”
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Evaluating factors influencing infrasonic signal detection and automatic processing performance utilizing a regional network
Published in The Journal of the Acoustical Society of America (01-12-2020)“…Physical and deployment factors that influence infrasound signal detection and assess automatic detection performance for a regional infrasound network of…”
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Evaluating the location capabilities of a regional infrasonic network in Utah, US, using both ray tracing-derived and empirical-derived celerity-range and backazimuth models
Published in Geophysical journal international (23-03-2022)“…SUMMARY More realistic models for infrasound signal propagation across a region can be used to improve the precision and accuracy of spatial and temporal…”
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6
Multiphenomenology explosion monitoring (MultiPEM): a general framework for data interpretation and yield estimation
Published in Geophysical journal international (01-07-2021)“…SUMMARY An underground nuclear explosion (UNE) couples mechanical energy into crustal rock, which propagates as seismic and acoustic waves. These different…”
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7
What else can we do with auxiliary parameters in ray tracing? How about back projection for localization?
Published in The Journal of the Acoustical Society of America (01-03-2024)“…Auxiliary parameters describing variations in ray path geometry with respect to initial launch angles have been leveraged in computing the Jacobian determinant…”
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Regional and global scale propagation simulations of infrasonic signals
Published in The Journal of the Acoustical Society of America (01-03-2023)“…Infrasonic signals are frequently observed at large propagation distances of 100s to 1000s of kilometers from the source and, in extreme cases, signals have…”
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Modeling regional propagation of infrasonic Mach cone energy from a supersonic source
Published in The Journal of the Acoustical Society of America (01-10-2022)“…Supersonic sources such as bolides, aircraft, and rocket launches are known to produce a wide range of acoustic and infrasonic signals. The lower frequency…”
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10
Seismoacoustic modeling of a below-ground explosion using finite element analysis
Published in The Journal of the Acoustical Society of America (01-10-2021)“…The generation of seismic and acoustic energy by below-ground explosions is a complicated, inelastic process in which damage and failure dynamics near the…”
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11
On cataloguing the possible waveforms for impulse propagation along ground to ground thermospheric paths
Published in The Journal of the Acoustical Society of America (01-10-2021)“…Infrasound propagation in the thermosphere is characterized by very low mean density, a very steep mean temperature gradient, and tidal winds. The steep…”
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Generalized least squares beamforming of infrasound data
Published in The Journal of the Acoustical Society of America (01-03-2024)“…Generalized least squares (GLS) beamforming is a method for determining the direction of arrival and trace velocity of transient infrasound signals that may be…”
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Infrasound propagation with realistic terrain and atmospheres using a finite-difference time-domain method
Published in The Journal of the Acoustical Society of America (01-10-2022)“…Numerous infrasound observations and complementary numerical simulations have shown that infrasound propagation is strongly influenced by terrain within…”
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14
An optimal parametrization framework for infrasonic tomography of the stratospheric winds using non-local sources
Published in Geophysical journal international (01-03-2017)Get full text
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Improved Bayesian Infrasonic Source Localization for regional infrasound
Published in Geophysical journal international (01-12-2015)“…The mathematical framework used in the Bayesian Infrasonic Source Localization (BISL) methodology is examined and simplified providing a generalized method of…”
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16
From atmospheric profile statistics to transmission loss statistics
Published in The Journal of the Acoustical Society of America (01-10-2022)“…Infrasound propagation depends critically on the temperature and wind velocity profiles at the time of signal propagation. These vary wildly, showing at best…”
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An Optimal Parameterization Framework for Infrasonic Tomography of the Stratospheric Winds Using Non-Local Sources
Published in Geophysical journal international (01-03-2017)“…A method is developed to apply acoustic tomography methods to a localized network of infrasound arrays with intention of monitoring the atmosphere state in the…”
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Interaction of the Cyclonic Winds with the Infrasonic Signal Generated by a Large Maritime Storm
Published 01-01-2013“…The collision of counter propagating ocean surface waves of like periods is known to produce an infrasonic signal termed a microbarom. It has been suggested…”
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Dissertation