Results 11 to 20 of about 129,945 (270)
Automatic Bayesian polarity determination [PDF]
, 2016 The polarity of the first motion of a seismic signal from an earthquake is an important constraint in earthquake source inversion. Microseismic events often have low signal-to-noise ratios, which may lead to difficulties estimating the correct first ...
Christie, PAF, Pugh, DJ, White, RS
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CFM: a Convolutional network for First Motion polarity classification of earthquake waveforms.
, 2023 The knowledge of the crustal stress field is essential in the evaluation of the seismic hazard of an area.To this aim, it is necessary to derive reliable focal mechanisms mainly when small earthquakes have to be included in the computation. The first motion focal mechanism solution techniques are still widely used in modern softwares. The determination
G. Messuti +4 more
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Stick‐Slip Tremor Beneath an Alpine Glacier
Geophysical Research Letters, 2021 Sliding of glacial ice over its base is typically described by a frictionless or slowly deforming bed. This view is challenged by recent seismic observations of stick‐slip motion at the ice‐bed interface.
J. Umlauft +6 more
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Reliability of Focal Mechanism Solutions for Small and Medium Earthquakes Based on Different Methods
Taiyuan Ligong Daxue xuebao, 2022 Three representative small and medium earthquakes in Shanxi seismic belt in recent years were taken as examples. By using different methods, such as the first motion of P-wave, first motion of P-wave combining P/SV/SH amplitude ratio, CAP (Cut and Past),
Penghu GUAN +4 more
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An MCMC Bayesian full moment tensor inversion constrained by first-motion polarities and double couple percent [PDF]
, 2020 Abstract. Monte Carlo Markov chain (MCMC) samplings can obtain a set of samples by directed random walk, mapping the posterior probability density of the model parameters in Bayesian framework. We perform earthquake waveform inversion to retrieve focal angles or the elements of moment tensor and source location using a Bayesian MCMC method with the ...
Mehrdad Pakzad +2 more
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Coordinated Cluster/Double Star observations of dayside reconnection signatures [PDF]
Annales Geophysicae, 2005 The recent launch of the equatorial spacecraft of the Double Star mission, TC-1, has provided an unprecedented opportunity to monitor the southern hemisphere dayside magnetopause boundary layer in conjunction with northern hemisphere observations by ...
M. W. Dunlop +21 more
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The role of photospheric converging motion in initiation of solar eruptions
Frontiers in Astronomy and Space Sciences, 2022 It is well-known that major solar eruptions are often produced by active regions with continual photospheric shearing and converging motions. Here, through high-accuracy magnetohydrodynamics simulation, we show how solar eruption is initiated in a single
Xinkai Bian +2 more
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Numerical Studies on the Motions of Magnetically Tagged Cells Driven by a Micromagnetic Matrix
Micromachines, 2023 Precisely controlling magnetically tagged cells in a complex environment is crucial to constructing a magneto-microfluidic platform. We propose a two-dimensional model for capturing magnetic beads from non-magnetic fluids under a micromagnetic matrix.
Shanjia Tao +3 more
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Mechanism of High Frequency Shallow Earthquake Source in Mount Soputan, North Sulawesi
Indonesian Journal on Geoscience, 2014 DOI: 10.17014/ijog.v6i3.122Moment tensor analysis had been conducted to understand the source mechanism of earthquakes in Soputan Volcano during October - November 2010 period. The record shows shallow earthquakes with frequency about 5 - 9 Hz.
Yasa Suparman +2 more
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Dynamic Coupling of Convective Flows and Magnetic Field during Flux Emergence [PDF]
, 2011 We simulate the buoyant rise of a magnetic flux rope from the solar convection zone into the corona to better understand the energetic coupling of the solar interior to the corona. The magnetohydrodynamic model addresses the physics of radiative cooling,
Abbett +35 more
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