Results 11 to 20 of about 9,321 (201)

The Gannon Storm's Impact on Electric and Magnetic Fields in Italy: A Regional Perspective

open access: yesSpace Weather
The intense May 2024 geomagnetic storm provided an opportunity to conduct the first analysis of geoelectric hazards in Italy. Data from three geomagnetic observatories and a magnetotelluric station were analyzed to examine the spatiotemporal evolution of
Giulia Pignatiello   +5 more
doaj   +2 more sources

Mapping a Magnetic Superstorm: March 1989 Geoelectric Hazards and Impacts on United States Power Systems

open access: yesSpace Weather, 2022
A study is made of the relations between geomagnetic and geoelectric field variation, Earth‐surface impedance, and operational interference (“anomalies”) experienced on electric‐power systems across the contiguous United States during the 13–14 March ...
Jeffrey J. Love   +5 more
doaj   +1 more source

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

PARAMETER SENSITIVITY MAPS OF SURFACE GEOELECTRIC ARRAYS II. NONLINEAR AND FOCUSSED ARRAYS [PDF]

open access: yes, 2008
In this paper we present, at first time in a geophysical journal, parameter sensitivity maps of nonlinear and focussed electrode arrays. We present them as anomalies due to electric dipoles forming on opposing surfaces of an elementary cube within the
Szalai, Sándor, Szarka, László
core   +1 more source

PEMANFAATAN GEOLISTRIK UNTUK IDENTIFIKASI BENDA TERDUGA ARTEFAK DI DESA PEKAUMAN, KABUPATEN BONDOWOSO

open access: yesSejarah dan Budaya: Jurnal Sejarah, Budaya, dan Pengajarannya, 2022
Problem the oftenly rises is when an artefacts remain buried and unintentionally unearth thereafter by any activities which unrelated to cultural preservation.
Reza Hudiyanto, Ismail Lutfi
doaj   +1 more source

Groundwater exploration using integrated geophysics method in hard rock terrains in Mount Betung Western Bandar Lampung, Indonesia

open access: yesJournal of Groundwater Science and Engineering, 2022
The presence of hard rock in Mount Betung has caused the misalignment of the groundwater aquifers, and resulted in many drilling failures for groundwater. An integrated geophysics method using gravity survey and Geoelectric Vertical Electrical Soundings (
Rustadi   +4 more
doaj   +1 more source

Classification of Surface Geoelectric Arrays [PDF]

open access: yes, 2007
We have found in the geophysical literature more than ninety different surface geoelectric arrays, fulfilling an updated definition (specifying the current feeding, the potential difference measurement and the geometry of the electrodes).
Szalai, Sándor, Szarka, László Csaba
core   +1 more source

PENDUGAAN POTENSI AIR TANAH BESERTA KEDALAMAMNYA DENGAN METODE RESISTIVITAS KONFIGURASI SHLUMBERGER DI NGLANGGERAN KULON KABUPATEN GUNUNG KIDUL

open access: yesJambura Physics Journal, 2022
Research on the estimation of groundwater potential and its depth has been carried out in Nglanggeran Kulon which is the Nglanggeran Ancient Volcano Tourism Village in Gunung Kidul. The large number of tourists who visit makes the need for groundwater in
Dzakiyah Nurul   +3 more
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 ...
Novák, Attila   +2 more
core   +1 more source

Auxiliary Results of Collection and Classification of Surface Geoelectric Arrays [PDF]

open access: yes, 2007
Recently, we have made a classification of more than one hundred various surface geoelectric arrays ever published in geophysical literature (Szalai and Szarka 2007a, 2007b). The classification is based on three divalent parameters (as “superposition” of
Szalai, Sándor, Szarka, László Csaba
core   +1 more source

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