Results 31 to 40 of about 2,756 (207)

Theoretical analysis and application of the telluric electric field frequency selection method for shallow groundwater exploration

open access: yesFrontiers in Earth Science
The telluric electric field frequency selection method (TEFSM) measures horizontal electric field components at discrete frequencies of naturally occurring electromagnetic (EM) fields.
Danqi Wang   +4 more
doaj   +1 more source

Practical Magnetotellurics [PDF]

open access: yesEos, Transactions American Geophysical Union, 2006
Practical Magnetotellurics lives up to its title and nicely fills a big hole in the literature on the subject of the magnetotelluric (MT) method, a means by which the geological and physical properties of the crust and mantle may be studied using electrical conductivity images.In an MT sounding passive time series, measurements of the Earth's naturally
openaire   +1 more source

ECloud - Magnetotelluric Webapp [PDF]

open access: yesASEG Extended Abstracts, 2018
Geophysical web applications are highly underrated. There are many potential benefits for transitioning to a cloud based web applications including compatibility improvement, low on-going operating costs and better access to existing third-party code and tools for facilitating rapid development.
Andrew Pethick   +2 more
openaire   +1 more source

Deep Electrical Structure of Taiwan as Inferred From Magnetotelluric Observations

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 1998
Not until magnetotellurics (MT) were conducted, was very much known about the deep electrical structures beneath Taiwan. Finally, the first MT was used as part of an integrated project to map 3-D structures; subsequently, nineteen MT soundings, uniformly
Chow-Son Chen   +2 more
doaj   +1 more source

Multi-component ground-based observation of ULF waves: goals and methods

open access: yesAnnals of Geophysics, 1998
A revival of the combined magnetic and telluric electric measurements at magnetic observatories is suggested.A number of problems, where such observations might be very helpful, are outlined: 1) the account for the resonance structure of the ULF field ...
E. N. Fedorov   +5 more
doaj   +1 more source

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze   +9 more
wiley   +1 more source

Estimating Extreme Geoelectric Field Values for the Australian Region

open access: yesSpace Weather, 2020
There are a number of global initiatives to understand and mitigate the impacts of extreme space weather on critical infrastructure and modern society.
Richard Marshall   +4 more
doaj   +1 more source

Determining Geological Properties by a Hybrid Seismic-Magnetotelluric Approach [PDF]

open access: yes, 2002
This paper concerns the controlled source audio magnetotelluric technique (CSAMT) for imaging subsurface structure. Given the short time available, we limited our investigation to a simple 1D earth model where regional seismic and well logs suggest ...
Geiger, Hugh, Lamoureux, Michael
core  

Crustal Magma Storage and Plumbing System Beneath the Tianchi and Wangtian'e Volcanoes, Changbaishan Intraplate Volcanic Field, China and North Korea

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract The Changbaishan volcanic field, which includes the Tianchi and Wangtian'e volcanoes in China and the Namphothe volcano in North Korea, is one of the most complex and hazardous volcanic regions on Earth due to its tectonic setting and explosive Holocene activity.
Xiaomeng Niu   +9 more
wiley   +1 more source

Estimating the electric field response to the Halloween 2003 and September 2017 magnetic storms across Scotland using observed geomagnetic fields, magnetotelluric impedances and perturbation tensors

open access: yesJournal of Space Weather and Space Climate, 2020
Geomagnetic storms generate heightened magnetovariational activity, which induces electric fields that drive hazardous currents known as geomagnetically induced currents (GICs) through man-made technological conductors including power transmission lines,
Simpson Fiona, Bahr Karsten
doaj   +1 more source

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