Results 11 to 20 of about 1,208 (208)

Ambient Noise Attenuation Tomography Reveals an Asymmetric Damage Zone Across San Jacinto Fault Near Anza, California

open access: yesGeophysical Research Letters, 2022
We perform seismic attenuation tomography of the shallow structure for the San Jacinto Fault in the Ramona Reservation of southern California. The study uses ambient seismic noise recorded by a linear array of 65 3‐C sensors across the fault.
Xin Liu   +2 more
doaj   +1 more source

Multiscale seismic tomography [PDF]

open access: yesGeophysical Journal International, 2001
Summary Seismic traveltime tomography is commonly discretized by a truncated expansion of the pursued model in terms of chosen basis functions. Whether parametrization affects the actual resolving power of a given data set as well as the robustness of the resulting earth model has long been seriously debated.
Chiao, Ling-Yun, Kuo, Ban-Yuan
openaire   +1 more source

EVALUATION OF THE SEISMIC TOMOGRAPHY TOOL FMTOMO FOR HIGH PERFORMANCE COMPUTING APPLICATIONS

open access: yesRevista de Investigaciones Universidad del Quindío, 2016
Colombia has always been a well-known country in terms of natural resources. In particular, mineral resources have become more and more relevant, because of the interest in oil exploitation.
Juan S. López G.   +2 more
doaj   +1 more source

Seismological expression of the iron spin crossover in ferropericlase in the Earth’s lower mantle

open access: yesNature Communications, 2021
This study identifies the predicted seismic expression of the high-to-low iron spin crossover in the deep Earth mineral ferropericlase. A depth-dependent signal is detected in the fastest and slowest regions, related to lateral temperature variations, of
Grace E. Shephard   +5 more
doaj   +1 more source

Time‐evolving seismic tomography: The method and its application to the 1989 Loma Prieta and 2014 South Napa earthquake area, California

open access: yesGeophysical Research Letters, 2017
We propose a time‐evolving approach to conduct traveltime seismic tomography in the 1989 Mw 6.9 Loma Prieta earthquake and 2014 Mw 6.0 South Napa earthquake area, California.
Ping Tong   +3 more
doaj   +1 more source

Imaging the Subsurface Structure of Mount Agung in Bali (Indonesia) Using Volcano-Tectonic (VT) Earthquake Tomography

open access: yesFrontiers in Earth Science, 2021
Local seismic tomography is a well-known and commonly used method for obtaining detailed information about the internal structure of volcanoes. The eruption of Mt. Agung in 2017 was a vital opportunity scientifically because it is the first eruption that
Ardianto Ardianto   +20 more
doaj   +1 more source

Recent progress on wave gradiometry method

open access: yes地球与行星物理论评, 2023
Wave gradiometry method is a data processing technique based on dense seismic arrays and is suitable for a variety of seismic signals/phases such as P-waves, S-waves, Rayleigh waves, Love waves, and ambient noise.
Feihuang Cao, Chuntao Liang
doaj   +1 more source

Chapter 3 Seismic tomography [PDF]

open access: yes, 2020
In the geophysics of oil exploration and reservoir studies, the surface seismic method is the most commonly used method to obtain a subsurface model in 2 or 3 dimensions. This method plays an increasingly important role in soil investigations for geotechnical, hydrogeological and site characterization studies regarding seismic hazard issues.
openaire   +2 more sources

Distributed acoustic sensing for seismic activity monitoring

open access: yesAPL Photonics, 2020
Continuous, real-time monitoring of surface seismic activity around the globe is of great interest for acquiring new insight into global tomography analyses and for recognition of seismic patterns leading to potentially hazardous situations.
María R. Fernández-Ruiz   +6 more
doaj   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

open access: yesAdvanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei   +8 more
wiley   +1 more source

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