Results 71 to 80 of about 58,571 (193)

Evaluating the applicability of a 2D weighted compact gravity inversion method for determining crustal undulations and thicknesses in the Aegean region

open access: yesGeophysical Prospecting, EarlyView.
Abstract This study introduces the application of the 2D weighted compact gravity inversion technique to model crustal thickness and intracrustal discontinuities in the Aegean region, encompassing both marine and terrestrial areas over a significant area of 430 km × 333 km.
M. B. Doğan
wiley   +1 more source

Spectral-Element and Adjoint Methods in Seismology [PDF]

open access: yes, 2008
We provide an introduction to the use of the spectral-element method (SEM) in seismology. Following a brief review of the basic equations that govern seismic wave propagation, we discuss in some detail how these equations may be solved numerically based ...
Commun Comput Phys   +3 more
core   +2 more sources

Magneto-seismology: effect of inhomogeneous magnetic field on transversal coronal loop oscillations [PDF]

open access: yes, 2008
The extreme-ultraviolet (EUV) imagers onboard the planned Solar Dynamics Observatory (SDO) and Solar Orbiter (SO) will offer us the best chance yet of using observations of post-flare loop oscillations to probe the fine structure of the corona.
Andries   +10 more
core   +1 more source

Klyuchevskoy volcano activity between November 2019 and June 2020

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
Klyuchevskoy volcano activity between November 2019 and June ...
Черкашин Р.И.   +4 more
doaj   +1 more source

Subglacial landscape formation and sediment discharge: relating basal conditions to bedform dimensions and properties at Rutford Ice Stream, West Antarctica

open access: yesBoreas, EarlyView.
Basal conditions that facilitate fast ice flow are still poorly understood and their parameterization in ice‐flow models results in high uncertainties in ice‐flow and consequent sea‐level rise projections. Direct observations of basal conditions beneath modern ice streams are limited due to the inaccessibility of the bed.
Rebecca Schlegel   +5 more
wiley   +1 more source

MHD Waves and Coronal Seismology: an overview of recent results

open access: yes, 2012
Recent observations have revealed that MHD waves and oscillations are ubiquitous in the solar atmosphere, with a wide range of periods. We give a brief review of some aspects of MHD waves and coronal seismology which have recently been the focus of ...
Uchida Y., Wang T., Zajtsev V. V.
core   +2 more sources

The effect of elliptic shape on the period ratio P-1/P-2 of emerging coronal loops [PDF]

open access: yes, 2009
Aims. We determine the effect of an elliptical shape on the period ratio for the standing transversal oscillations of a longitudinally stratified coronal loop throughout its emergence from the low solar atmosphere into the ubiquitously magnetised corona.
Erdelyi, R., Morton, R.J.
core   +1 more source

Ionospheric disturbances associated with the 2015 M7.8 Nepal earthquake

open access: yesGeodesy and Geodynamics, 2017
Based on the total electron content (TEC) derived from Global Positioning System (GPS) observations of the Crustal Movement Observation Network of China (CMONOC) and the Global Ionosphere Map (GIM) from the Center for Orbit Determination in Europe (CODE),
Yiyan Zhou   +5 more
doaj   +1 more source

Automatic classification of near‐fault pulse‐like ground motions

open access: yesComputer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract This study presents an automated, quantitative classification method for near‐fault pulse‐like ground motions, distinguishing between forward‐directivity and fling‐step (FS) motions. The method introduces two novel parameters—the pulse velocity ratio and pulse area ratio—which transform the classification standard from a qualitative to a ...
Hongwu Yang   +4 more
wiley   +1 more source

Field Testing and Numerical Simulation of the Dynamic Response of Loess Hill Site under High-Speed Train Load

open access: yesShock and Vibration
In this study, the loess hill site of an elevated bridge section in Tongwei-Qin’an of the Baolan high-speed railroad was selected as the research object, and the vibration acceleration of the loess hill site under the elevated bridge was tested in the ...
Wujian Yan   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy