Results 31 to 40 of about 15,948 (253)

A Python framework for efficient use of pre-computed Green's functions in seismological and other physical forward and inverse source problems [PDF]

open access: yesSolid Earth, 2019
The finite physical source problem is usually studied with the concept of volume and time integrals over Green's functions (GFs), representing delta-impulse solutions to the governing partial differential field equations.
S. Heimann   +10 more
doaj   +1 more source

Imaging disturbance zones ahead of a tunnel by elastic full-waveform inversion: Adjoint gradient based inversion vs. parameter space reduction using a level-set method

open access: yesUnderground Space, 2018
We present and compare two flexible and effective methodologies to predict disturbance zones ahead of underground tunnels by using elastic full-waveform inversion.
Andre Lamert   +3 more
doaj   +1 more source

Estimation of seismic impacts under conditions of permafrost degradation

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2022
Permafrost is widespread in Russia in many mining and oil regions. Some of these areas are located in zones of high seismic activity. In connection with global climate change and possible degradation of permafrost, it is necessary to study the seismic ...
Trifonov B.A.   +2 more
doaj   +1 more source

From Artifacts to Aggregations: Modeling Scientific Life Cycles on the Semantic Web [PDF]

open access: yes, 2009
In the process of scientific research, many information objects are generated, all of which may remain valuable indefinitely. However, artifacts such as instrument data and associated calibration information may have little value in isolation; their ...
Ahern   +37 more
core   +1 more source

Analysis of datum-instability effect on calculated results of data from Longmen Mountain regional gravity network

open access: yesGeodesy and Geodynamics, 2011
A statistical correlation method is used to study the effect of instability of the calculation datum (used in traditional method of indirect adjustment) on calculated gravity results, using data recorded by Long-men Mountain regional gravity network ...
Sun Shaoan, Zhou Xin
doaj   +1 more source

STanford EArthquake Dataset (STEAD): A Global Data Set of Seismic Signals for AI

open access: yesIEEE Access, 2019
Seismology is a data rich and data-driven science. Application of machine learning for gaining new insights from seismic data is a rapidly evolving sub-field of seismology.
S. Mostafa Mousavi   +3 more
doaj   +1 more source

Fully probabilistic seismic source inversion – Part 1: Efficient parameterisation [PDF]

open access: yesSolid Earth, 2014
Seismic source inversion is a non-linear problem in seismology where not just the earthquake parameters themselves but also estimates of their uncertainties are of great practical importance.
S. C. Stähler, K. Sigloch
doaj   +1 more source

Development and Testing of a 5G Multichannel Intelligent Seismograph Based on Raspberry Pi

open access: yesSensors, 2022
A seismograph was designed based on Raspberry Pi. Although comprising 8 channels, the seismograph can be expanded to 16, 24, or 32 channels by using a USB interfacing with a microcontroller.
Igbinigie Philip Idehen   +6 more
doaj   +1 more source

Seismic wave propagation in icy ocean worlds

open access: yes, 2017
Seismology was developed on Earth and shaped our model of the Earth's interior over the 20th century. With the exception of the Philae lander, all in situ extraterrestrial seismological effort to date was limited to other terrestrial planets. All have in
Kedar, Sharon   +6 more
core   +1 more source

Rôle of Digital Computers in Exploration Seismology [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1967
In exploration, seismology surface sound sources and detectors are utilized to indicate variations in the elastic properties of the subsurface of the earth and from these infer the geological structure. It is helpful to pose the basic problem in a form that is common to most scientific investigations.
Roger D. Judson, J. W. C. Sherwood
openaire   +1 more source

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