Results 41 to 50 of about 6,331 (210)

Maps of geoelectric sections of Turkey, Iran, Afghanistan, Pakistan, Korea, and Japan [PDF]

Natural Hazards and Earth System Sciences, 2008
Results of geoelectric mapping of some Asian countries with high seismic activity are presented. The methodology of the geoelectric mapping is considered, and the corresponding maps of geoelectric sections of Turkey, Iran, Afghanistan, Pakistan, Korea ...
Y. B. Bashkuev, V. R. Advokatov, L. K. Angarkhaeva, V. S. Dorzhiev, M. Hayakawa   +4 more
doaj  

Revealing the Hydrothermal System of La Soufrière Volcano (Guadeloupe) Through Nodal Ambient Noise Tomography

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract La Soufri'ere de Guadeloupe is an active volcano of the Lesser Antilles Volcanic Arc. Its last eruption halted in 1977, yet hydrothermal activity has increased over recent years, raising summit instability hazards. The link between hydrothermal fluids and detachment landslide surfaces is well established and exacerbated by inflation ...
Elliot Amir Jiwani‐Brown, Iván Cabrera‐Pérez, Laurie Mischler, Douglas Stumpp, Geneviève Savard, Catherine Truffert, Alberto Rosselli, Federico Fischanger, Filippo Barsuglia, Matteo Lupi   +9 more
wiley   +1 more source

Electrical Resistivity Tomography for the 2D and 3D Investigation of Pingos and Permafrost Mounds in Northern Canada's Mountain and Coastland Areas

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 804-829, October/December 2026.
ABSTRACT Pingos and related permafrost mounds are widespread periglacial landforms in Arctic environments that are ice‐rich on the one hand and contain taliks on the other, making them vulnerable to climate change. So far, the interior, geophysical characteristics, and distribution of ground ice within these dome‐ or cone‐shaped features have not been ...
Tim Wiegand, Julius Kunz, Christof Kneisel   +2 more
wiley   +1 more source

Bayesian Inversion of Geoelectrical Resistivity Data [PDF]

Journal of the Royal Statistical Society Series B: Statistical Methodology, 2003
Summary Enormous quantities of geoelectrical data are produced daily and often used for large scale reservoir modelling. To interpret these data requires reliable and efficient inversion methods which adequately incorporate prior information and use realistically complex modelling structures.
Andersen, Kim Emil, Brooks, S. P., Hansen, Martin Bøgsted; id_orcid 0000-0001-9192-1814   +2 more
openaire   +2 more sources

Identification the distribution of iron ore used resistivity geoelectric method in the Ogowele Village, Tolitoli Regency.

, 2015
It has been used resistivity geoelectric method with Wenner-Schlumberger configuration. The aim is to identify the distribution of iron ore located in the Ogowelevillage, Tolitoli regency.
Th. Musa, Moh. Dahlan, sandra, sandra, Djuhaepa, Agim Prakarsa   +2 more
core   +1 more source

Katz Fractal Dimension of Geoelectric Field during Severe Geomagnetic Storms

, 2021
We are concerned with the time series resulting from the computed local horizontal geoelectric field, obtained with the aid of a 1-D layered Earth model based on local geomagnetic field measurements, for the full solar magnetic cycle of 1996–2019 ...
Agnieszka Gil, Renata Modzelewska, Vasile Glavan, Lukasz Tomasik, Anna Wawrzaszek   +4 more
core   +1 more source

Nighttime Westward Equatorial Electrojet Observed During the January 2026 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract The equatorial electrojet (EEJ) is a narrow band of zonal electric current flowing in the E‐region ionosphere within approximately ±2° $\pm 2{}^{\circ}$ latitude of the magnetic equator. At night, the EEJ is generally considered very weak because of low ionospheric conductivity.
Y. Yamazaki, M. V. da Silva, J. Matzka, G. B. Soares, A. Grayver, D. R. Themens, S. K. Das, C. Stolle, A. Maute, S. Perwitasari, M. Nishioka, R. Kaewthongrach, S. Channumsin, Y. Setiawan, M. Syirojudin, X. Yue, A. Yoshikawa, S. Abe, K. Girgis, R. Flores, F. Justo, J. Inostroza, G. Vichare, G. Seemala, A. Nel, N. M. Giday, A. Samy   +26 more
wiley   +1 more source

Characteristics of the Changes in the Induced Geoelectric Field Observed by the China Geoelectric Network During the Sudden Commencement of the Geomagnetic Storm on 10 May 2024

Applied Sciences
Geomagnetically induced geoelectric fields can exhibit substantial spatial variability because regional subsurface electrical structures affect surface electromagnetic responses.
Wenzhou Zhao, Qinzhong Ma, Wei Li, Yanlin Wen   +3 more
doaj   +1 more source

Geomagnetic and Geoelectric determination of Topography and Depth of constituent Bedrock in a Complex Environment.

, 2015
Geomagnetic and geoelectric surveys were executed in a complex zone with the aim of determining the topography and estimated depth of constituent bedrock in the study area. The ground magnetic and geoelectric – Schlumberger’s vertical electrical sounding
Ozegin, KO, Oseghale, AO
core   +1 more source

Analysis of Large Geomagnetically Induced Currents During the 7-8 September 2017 Storm: Geoelectric Field Mapping

, 2023
High temporal and high spatial resolution geoelectric field models of two M\"ants\"al\"a, Finnish pipeline GIC intervals that occurred within the 7-8 September, 2017 geomagnetic storm have been made.
Modzelewska, Renata, Wawrzaszek, Roman, Roman Wawrzaszek, Agnieszka Gil, Wawrzaszek, Anna, Renata Modzelewska, Tsurutani, Bruce T., Gil, Agnieszka, Anna Wawrzaszek, Bruce T. Tsurutani   +9 more
core   +1 more source