Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Johannes Faber"'
Publikováno v:
Artificial Intelligence in Geosciences, Vol 5, Iss , Pp 100086- (2024)
In this study, we present an artificial neural network (ANN)-based approach for travel-time tomography of a volcanic edifice under sparse-ray coverage. We employ ray tracing to simulate the propagation of seismic waves through the heterogeneous mediu
Externí odkaz:
https://doaj.org/article/345feca4849744acb2dc5780aa5b88cd
Publikováno v:
Seismica, Vol 3, Iss 1 (2024)
Teleseismic shear-wave splitting analyses are often performed by reversing the splitting process through the application of frequency- or time-domain operations aimed at minimizing the transverse-component energy of waveforms. These operations yield
Externí odkaz:
https://doaj.org/article/7fd14808616f4b2bb0fbe9dd464bf7e2
PolarCAP – A deep learning approach for first motion polarity classification of earthquake waveforms
Autor:
Megha Chakraborty, Claudia Quinteros Cartaya, Wei Li, Johannes Faber, Georg Rümpker, Horst Stoecker, Nishtha Srivastava
Publikováno v:
Artificial Intelligence in Geosciences, Vol 3, Iss , Pp 46-52 (2022)
The polarity of first P-wave arrivals plays a significant role in the effective determination of focal mechanisms specially for smaller earthquakes. Manual estimation of polarities is not only time-consuming but also prone to human errors. This warra
Externí odkaz:
https://doaj.org/article/e259a055f76e483b997c39645d3e99fa
Autor:
Wei Li, Megha Chakraborty, Yu Sha, Kai Zhou, Johannes Faber, Georg Rümpker, Horst Stöcker, Nishtha Srivastava
Publikováno v:
Artificial Intelligence in Geosciences, Vol 3, Iss , Pp 115-122 (2022)
Reliable seismic phase identification is often challenging especially in the circumstances of low-magnitude events or poor signal-to-noise ratio. With improved seismometers and better global coverage, a sharp increase in the volume of recorded seismi
Externí odkaz:
https://doaj.org/article/3b802d4231e54ca481c1158d4b7890b4
Autor:
Wei Li, Megha Chakraborty, Darius Fenner, Johannes Faber, Kai Zhou, Georg Rümpker, Horst Stöcker, Nishtha Srivastava
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Earthquake detection and seismic phase picking play a crucial role in the travel-time estimation of P and S waves, which is an important step in locating the hypocenter of an event. The phase-arrival time is usually picked manually. However, its capa
Externí odkaz:
https://doaj.org/article/ea4c3fd317734f32a36beb0e018998a7
Autor:
Darius Fenner, Georg Rümpker, Wei Li, Megha Chakraborty, Johannes Faber, Jonas Köhler, Horst Stöcker, Nishtha Srivastava
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Many active volcanoes exhibit Strombolian activity, which is typically characterized by relatively frequent mild volcanic explosions and also by rare and much more destructive major explosions and paroxysms. Detailed analyses of past major and minor
Externí odkaz:
https://doaj.org/article/69658935c1584ec19221eef05686e1e7
Usually, the earthquake catalog for a given region represents a collection of all detected and localized earthquakes and, thus, contains not only the main shocks, but also fore- and aftershocks. In order to perform an independent seismic event and se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::248a3d291b1478dab00a4da4596fca59
https://doi.org/10.5194/egusphere-egu23-11462
https://doi.org/10.5194/egusphere-egu23-11462
Fast magnitude estimation of large earthquakes has been a key task for warning systems. In the last decades, Global Navigation Satellite Systems data with high-rate sampling (≥1 Hz; HR-GNSS) have provided us with useful information from displacemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe4ffed539574b2bf3e04c2c1ec191df
https://doi.org/10.5194/egusphere-egu23-9248
https://doi.org/10.5194/egusphere-egu23-9248
Autor:
Georg Rümpker, Ayoub Kaviani, Frederik Link, Miriam Reiss, Megha Chakraborty, Johannes Faber, Jonas Köhler, Nishtha Srivastava
Seismic anisotropy provides a unique link between directly observable surface structures and the more elusive dynamic processes in the mantle below. The ability to infer the vertically- and laterally-varying anisotropic structures is of great signifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd940a470a60460109274a9612780bd7
https://doi.org/10.5194/egusphere-egu23-16052
https://doi.org/10.5194/egusphere-egu23-16052
Autor:
Megha Chakraborty, Darius Fenner, Wei Li, Johannes Faber, Kai Zhou, Georg Rümpker, Horst Stoecker, Nishtha Srivastava
Publikováno v:
Journal of Geophysical Research: Solid Earth. 127
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faa3e1383704723ed693346c00290a24
https://doi.org/10.1029/2022jb024595
https://doi.org/10.1029/2022jb024595