Results 11 to 20 of about 4,199 (222)

Geolectric field measurement, modelling and validation during geomagnetic storms in the UK [PDF]

open access: yesJournal of Space Weather and Space Climate, 2021
Significant geoelectric fields are produced by the interaction of rapidly varying magnetic fields with the conductive Earth, particularly during intense geomagnetic activity.
Beggan Ciarán D.   +4 more
doaj   +2 more sources

Geoelectric monitoring at the Boulder magnetic observatory [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2017
Despite its importance to a range of applied and fundamental studies, and obvious parallels to a robust network of magnetic-field observatories, long-term geoelectric field monitoring is rarely performed.
C. C. Blum   +5 more
doaj   +3 more sources

Interference and changes in data characteristics of Luoci geoelectric observatory station in Yunnan Province [PDF]

open access: yes地震科学进展
The observation data from the Luoci geoelectric observatory station were studied. The main sources of data interference were identified and analyzed using the observation data from a geoelectric observatory station.
Xin Xiao   +4 more
doaj   +2 more sources

Nowcasting geoelectric fields in Ireland using magnetotelluric transfer functions [PDF]

open access: yes, 2023
Geomagnetically induced currents (GIC) driven by geoelectric fields pose a hazard to ground-based infrastructure, such as power grids and pipelines. Here, a new method is presented for modelling geoelectric fields in near real time, to provide valuable ...
John Malone-Leigh   +11 more
core   +1 more source

Identifikasi Gugus SiHx (x=1, 2 dan 3) pada Silikon Berpori dari Substrat Si (111) Tipe-P

open access: yesJurnal Fisika Flux, 2017
The study of identification of functional group SiHx (x=1, 2, 3) to typep Si (111) made by anodizatied silicon wafer in 0,3 ohm-cm hydrofluoric (HF) has been conducted.
I Nyoman Sudiana
doaj   +3 more sources

Influence of natural and anthropogenic factors on the hydrogeology and hydrogeochemistry of Wadi Itwad Aquifer, Saudi Arabia: Assessment using multivariate statistics and PMWIN simulation

open access: yesEcological Indicators, 2023
The quantity and quality of the aquifers have been depleted by human activities such as industrialization, the use of fertilizers, excessive pumping, and the discharge of domestic wastewater.
Mohd Yawar Ali Khan   +6 more
doaj   +1 more source

Donbas geoelectrical structure

open access: yesGeofizicheskiy Zhurnal, 2022
The Donbas was formed as the result of Late Devonian rifting of the East European craton. During the Carboniferous, the subsidence of the basin and sedimentation were at their maximum, and a 15-kilometer stratum of Carboniferous deposits formed in the Donbas. The total thickness of the deposits reaches more than 20 km. The next important event was
I.I. Rokityansky, A.V. Tereshyn
openaire   +4 more sources

Delineating the source and mechanism of groundwater salinization in a semi-arid region of southeastern Iran using geophysical and hydrochemical approaches [PDF]

open access: yesمدل‌سازی و مدیریت آب و خاک, 2023
IntroductionGroundwater salinization is a major environmental problem, especially in arid and semi-arid regions of the world. Different natural processes and anthropogenic activities can cause groundwater salinity.
Mohammad Faryabi
doaj   +1 more source

Depth of Investigation of Dipole-dipole, Noncolinear and Focused Geoelectric Arrays [PDF]

open access: yes, 2007
Investigation depth of various DC geoelectric arrays has always been in the focus of interest of geoelectricians. According to its classical definition (Roy and Apparao 1971), the depth of investigation is the depth of the maximum response due to a ...
Szarka, László Csaba   +5 more
core   +1 more source

DELINEATION OF CONCENTRATION OF FERRUGINOUS MINERALS IN AQUIFERS IN YENAGOA, BAYELSA STATE, NIGERIA, USING GEOELECTRIC VERTICAL ELECTRICAL SOUNDING (VES) AND PHYSICOCHEMICAL TECHNIQUES [PDF]

open access: yesEarth Science Malaysia, 2020
A total of sixteen Vertical Electrical Sounding (VES) surveys and five physicochemical analyses were carried out in selected locations within the Yenagoa Metropolis, in Bayelsa State, Nigeria, to delineate the concentration of ferruginous minerals in ...
Okorobia E. Mark   +3 more
doaj   +1 more source

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